summary refs log tree commit diff stats
path: root/tests/misc
diff options
context:
space:
mode:
Diffstat (limited to 'tests/misc')
-rw-r--r--tests/misc/99bottles.nim1
-rw-r--r--tests/misc/m15316.nim1
-rw-r--r--tests/misc/m15955.nim4
-rw-r--r--tests/misc/m15955_main.nim11
-rw-r--r--tests/misc/m20149.nim2
-rw-r--r--tests/misc/m20456.nims1
-rw-r--r--tests/misc/mbackend.nim30
-rw-r--r--tests/misc/mbetterrun.nim3
-rw-r--r--tests/misc/mfield_defect.nim30
-rw-r--r--tests/misc/mimportc.nim26
-rw-r--r--tests/misc/minit.nim2
-rw-r--r--tests/misc/mjsondoc.nim14
-rw-r--r--tests/misc/modulea.nim2
-rw-r--r--tests/misc/msizeof5.nim131
-rw-r--r--tests/misc/msizeof5.nim.cfg5
-rw-r--r--tests/misc/mtlsemulation.h37
-rw-r--r--tests/misc/mvarious.nim6
-rw-r--r--tests/misc/parsecomb.nim109
-rw-r--r--tests/misc/t11634.nim17
-rw-r--r--tests/misc/t12480.nim5
-rw-r--r--tests/misc/t12869.nim14
-rw-r--r--tests/misc/t14667.nim12
-rw-r--r--tests/misc/t15351.nim5
-rw-r--r--tests/misc/t15955.nim22
-rw-r--r--tests/misc/t16244.nim9
-rw-r--r--tests/misc/t16264.nim2
-rw-r--r--tests/misc/t16541.nim12
-rw-r--r--tests/misc/t17286.nim16
-rw-r--r--tests/misc/t18077.nim21
-rw-r--r--tests/misc/t18079.nim15
-rw-r--r--tests/misc/t19046.nim19
-rw-r--r--tests/misc/t20253.nim10
-rw-r--r--tests/misc/t20289.nim15
-rw-r--r--tests/misc/t20456_2.nim14
-rw-r--r--tests/misc/t20883.nim13
-rw-r--r--tests/misc/t21109.nim13
-rw-r--r--tests/misc/t21443.nim6
-rw-r--r--tests/misc/t23240.nim6
-rw-r--r--tests/misc/t3482.nim15
-rw-r--r--tests/misc/t3907.nim10
-rw-r--r--tests/misc/t5540.nim45
-rw-r--r--tests/misc/t6549.nim4
-rw-r--r--tests/misc/t8404.nim33
-rw-r--r--tests/misc/t8545.nim24
-rw-r--r--tests/misc/t9039.nim24
-rw-r--r--tests/misc/t9091.nim33
-rw-r--r--tests/misc/t9710.nim6
-rw-r--r--tests/misc/t99bott.nim32
-rw-r--r--tests/misc/tack.nim19
-rw-r--r--tests/misc/taddr.nim295
-rw-r--r--tests/misc/tapp_lib_staticlib.nim27
-rw-r--r--tests/misc/tbug1217bracketquotes.nim14
-rw-r--r--tests/misc/tbug511622.nim12
-rw-r--r--tests/misc/tcast.nim108
-rw-r--r--tests/misc/tcharinc.nim10
-rw-r--r--tests/misc/tcmdline.nim18
-rw-r--r--tests/misc/tconv.nim143
-rw-r--r--tests/misc/tcsharpusingstatement.nim76
-rw-r--r--tests/misc/tdangerisrelease.nim14
-rw-r--r--tests/misc/tdefine.nim77
-rw-r--r--tests/misc/tdllvar.nim18
-rw-r--r--tests/misc/teventemitter.nim32
-rw-r--r--tests/misc/tfib.nim11
-rw-r--r--tests/misc/tfilter.nim41
-rw-r--r--tests/misc/thallo.nim87
-rw-r--r--tests/misc/theaproots.nim75
-rw-r--r--tests/misc/tinit.nim9
-rw-r--r--tests/misc/tinout.nim14
-rw-r--r--tests/misc/tinvalidnewseq.nim24
-rw-r--r--tests/misc/tissue710.nim10
-rw-r--r--tests/misc/tjoinable.nim3
-rw-r--r--tests/misc/tlastmod.nim25
-rw-r--r--tests/misc/tloops.nim93
-rw-r--r--tests/misc/tmemoization.nim17
-rw-r--r--tests/misc/tmissingnilcheck.nim20
-rw-r--r--tests/misc/tmodulea.nim3
-rw-r--r--tests/misc/tnoforward.nim15
-rw-r--r--tests/misc/tnolen.nim8
-rw-r--r--tests/misc/tparedef.nim4
-rw-r--r--tests/misc/tparsecombnum.nim55
-rw-r--r--tests/misc/tparseopt.nim156
-rw-r--r--tests/misc/tpos.nim33
-rw-r--r--tests/misc/tprep.nim38
-rw-r--r--tests/misc/tquicksort.nim23
-rw-r--r--tests/misc/tradix.nim254
-rw-r--r--tests/misc/trfc405.nim112
-rw-r--r--tests/misc/trunner.nim444
-rw-r--r--tests/misc/trunner_special.nim37
-rw-r--r--tests/misc/tsamename.nim15
-rw-r--r--tests/misc/tsamename2.nim4
-rw-r--r--tests/misc/tsemfold.nim27
-rw-r--r--tests/misc/tshadow_magic_type.nim29
-rw-r--r--tests/misc/tsimplesort.nim306
-rw-r--r--tests/misc/tsizeof.nim742
-rw-r--r--tests/misc/tsizeof2.nim17
-rw-r--r--tests/misc/tsizeof3.nim58
-rw-r--r--tests/misc/tsizeof4.nim20
-rw-r--r--tests/misc/tsortdev.nim58
-rw-r--r--tests/misc/tstrace.nim36
-rw-r--r--tests/misc/tstrange.nim28
-rw-r--r--tests/misc/tstrdesc.nim14
-rw-r--r--tests/misc/tstrdist.nim26
-rw-r--r--tests/misc/ttlsemulation.nim76
-rw-r--r--tests/misc/tvarious.nim72
-rw-r--r--tests/misc/tvarious1.nim58
-rw-r--r--tests/misc/tvarnums.nim139
-rw-r--r--tests/misc/tvcc.nim9
-rw-r--r--tests/misc/åäö.nim11
108 files changed, 5106 insertions, 0 deletions
diff --git a/tests/misc/99bottles.nim b/tests/misc/99bottles.nim
new file mode 100644
index 000000000..14904ac0f
--- /dev/null
+++ b/tests/misc/99bottles.nim
@@ -0,0 +1 @@
+# Test if the compiler detects invalid module names
diff --git a/tests/misc/m15316.nim b/tests/misc/m15316.nim
new file mode 100644
index 000000000..188d06946
--- /dev/null
+++ b/tests/misc/m15316.nim
@@ -0,0 +1 @@
+proc foo = (if)
diff --git a/tests/misc/m15955.nim b/tests/misc/m15955.nim
new file mode 100644
index 000000000..22da345db
--- /dev/null
+++ b/tests/misc/m15955.nim
@@ -0,0 +1,4 @@
+proc add*(a, b: int): int {.cdecl, exportc.} =
+    a + b
+proc sub*(a, b: int): int {.cdecl, exportc.} =
+    a - b
\ No newline at end of file
diff --git a/tests/misc/m15955_main.nim b/tests/misc/m15955_main.nim
new file mode 100644
index 000000000..a71af8121
--- /dev/null
+++ b/tests/misc/m15955_main.nim
@@ -0,0 +1,11 @@
+import stdtest/specialpaths
+import std/os
+
+const buildLib = buildDir / "libD20220923T19380"
+
+{.passL: buildLib.}
+proc add*(a, b: int):int {.cdecl, importc.}
+proc sub*(a, b: int):int {.cdecl, importc.}
+
+echo add(10, 5)
+echo sub(10, 5)
diff --git a/tests/misc/m20149.nim b/tests/misc/m20149.nim
new file mode 100644
index 000000000..942262a6e
--- /dev/null
+++ b/tests/misc/m20149.nim
@@ -0,0 +1,2 @@
+let x = 12
+echo x
diff --git a/tests/misc/m20456.nims b/tests/misc/m20456.nims
new file mode 100644
index 000000000..8a9313129
--- /dev/null
+++ b/tests/misc/m20456.nims
@@ -0,0 +1 @@
+echo 123
\ No newline at end of file
diff --git a/tests/misc/mbackend.nim b/tests/misc/mbackend.nim
new file mode 100644
index 000000000..b6578a212
--- /dev/null
+++ b/tests/misc/mbackend.nim
@@ -0,0 +1,30 @@
+#[
+We can't merge this test inside a `when defined(cpp)` because some bug that was
+fixed would not trigger in that case.
+]#
+
+import std/compilesettings
+
+static:
+  ## bugfix 1: this used to CT error with: Error: unhandled exception: mimportcpp.nim(6, 18) `defined(cpp)`
+  doAssert defined(cpp)
+  doAssert querySetting(backend) == "cpp"
+
+  ## checks that `--backend:c` has no side effect (ie, can be overridden by subsequent commands)
+  doAssert not defined(c)
+  doAssert not defined(js)
+  doAssert not defined(js)
+
+type
+  std_exception {.importcpp: "std::exception", header: "<exception>".} = object
+proc what(s: std_exception): cstring {.importcpp: "((char *)#.what())".}
+
+var isThrown = false
+try:
+  ## bugfix 2: this used to CT error with: Error: only a 'ref object' can be raised
+  raise std_exception()
+except std_exception as ex:
+  doAssert ex.what().len > 0
+  isThrown = true
+
+doAssert isThrown
diff --git a/tests/misc/mbetterrun.nim b/tests/misc/mbetterrun.nim
new file mode 100644
index 000000000..d4f427af0
--- /dev/null
+++ b/tests/misc/mbetterrun.nim
@@ -0,0 +1,3 @@
+const mbetterrunVal {.strdefine.} = ""
+static: echo "compiling: " & mbetterrunVal
+echo "running: " & mbetterrunVal
diff --git a/tests/misc/mfield_defect.nim b/tests/misc/mfield_defect.nim
new file mode 100644
index 000000000..53bfba40e
--- /dev/null
+++ b/tests/misc/mfield_defect.nim
@@ -0,0 +1,30 @@
+#[
+ran from trunner
+]#
+
+
+
+
+
+
+# line 10
+type Kind = enum k0, k1, k2, k3, k4
+
+type Foo = object
+  case kind: Kind
+  of k0: f0: int
+  of k1: f1: int
+  of k2: f2: int
+  of k3: f3: int
+  of k4: f4: int
+
+proc main()=
+  var foo = Foo(kind: k3, f3: 3)
+  let s1 = foo.f3
+  doAssert s1 == 3
+  let s2 = foo.f2
+
+when defined case1:
+  static: main()
+when defined case2:
+  main()
diff --git a/tests/misc/mimportc.nim b/tests/misc/mimportc.nim
new file mode 100644
index 000000000..602c6372d
--- /dev/null
+++ b/tests/misc/mimportc.nim
@@ -0,0 +1,26 @@
+#[
+this test will grow with more importc+importcpp tests; see driver in trunner.nim
+]#
+
+{.emit:"""
+struct A {
+  static int fun0(int a){
+    return a;
+  }
+  static int& fun1(int& a){
+    return a;
+  }
+};
+""".}
+
+proc fun0*(a: cint): int {.importcpp:"A::$1(@)".}
+proc fun1*(a: var cint): var int {.importcpp:"A::$1(@)".} =
+  ## some comment; this test is for #14314
+  runnableExamples: discard
+
+proc main()=
+  var a = 10.cint
+  doAssert fun0(a) == a
+  doAssert fun1(a).addr == a.addr
+  echo "witness"
+main()
diff --git a/tests/misc/minit.nim b/tests/misc/minit.nim
new file mode 100644
index 000000000..513f46af5
--- /dev/null
+++ b/tests/misc/minit.nim
@@ -0,0 +1,2 @@
+# Test the new initialization for modules
+write(stdout, "Hello from module! ")
diff --git a/tests/misc/mjsondoc.nim b/tests/misc/mjsondoc.nim
new file mode 100644
index 000000000..016c8522d
--- /dev/null
+++ b/tests/misc/mjsondoc.nim
@@ -0,0 +1,14 @@
+proc doSomething*(x, y: int): int =
+  ## do something
+  x + y
+
+const
+  a* = 1 ## echo 1234
+  b* = "test"
+
+type
+  MyEnum* = enum
+    foo, bar
+
+proc foo2*[T: int, M: string, U](x: T, y: U, z: M) =
+  echo 1
diff --git a/tests/misc/modulea.nim b/tests/misc/modulea.nim
new file mode 100644
index 000000000..a9e6b364e
--- /dev/null
+++ b/tests/misc/modulea.nim
@@ -0,0 +1,2 @@
+type modulea* = object
+  a: int
diff --git a/tests/misc/msizeof5.nim b/tests/misc/msizeof5.nim
new file mode 100644
index 000000000..63573a705
--- /dev/null
+++ b/tests/misc/msizeof5.nim
@@ -0,0 +1,131 @@
+## tests for -d:checkAbi used by addAbiCheck via NIM_STATIC_ASSERT
+
+{.emit:"""/*TYPESECTION*/
+struct Foo1{
+  int a;
+};
+struct Foo2{
+  int a;
+};
+enum Foo3{k1, k2};
+typedef enum Foo3 Foo3b;
+typedef enum Foo4{k3, k4} Foo4;
+
+typedef int Foo5[3];
+
+typedef struct Foo6{
+  int a1;
+  bool a2;
+  double a3;
+  struct Foo6* a4;
+} Foo6;
+""".}
+
+template ensureCgen(T: typedesc) =
+  ## ensures cgen
+  var a {.volatile.}: T
+
+block:
+  type Foo1Alias{.importc: "struct Foo1", size: sizeof(cint).} = object
+    a: cint
+  ensureCgen Foo1Alias
+
+block:
+  type Foo3Alias{.importc: "enum Foo3", size: sizeof(cint).} = enum
+    k1, k2
+  ensureCgen Foo3Alias
+
+block:
+  type Foo3bAlias{.importc: "Foo3b", size: sizeof(cint).} = enum
+    k1, k2
+  ensureCgen Foo3bAlias
+
+block:
+  type Foo3b{.importc, size: sizeof(cint).} = enum
+    k1, k2
+  ensureCgen Foo3b
+  static:
+    doAssert Foo3b.sizeof == cint.sizeof
+
+block:
+  type Foo4{.importc, size: sizeof(cint).} = enum
+    k3, k4
+  # adding entries should not yield duplicate ABI checks, as enforced by
+  # `typeABICache`.
+  # Currently the test doesn't check for this but you can inspect the cgen'd file
+  ensureCgen Foo4
+  ensureCgen Foo4
+  ensureCgen Foo4
+
+block:
+  type Foo5{.importc.} = array[3, cint]
+  ensureCgen Foo5
+
+block:
+  type Foo5{.importc.} = array[3, cint]
+  ensureCgen Foo5
+
+block: # CT sizeof
+  type Foo6GT = object # grountruth
+    a1: cint
+    a2: bool
+    a3: cfloat
+    a4: ptr Foo6GT
+
+  type Foo6{.importc, completeStruct.} = object
+    a1: cint
+    a2: bool
+    a3: cfloat
+    a4: ptr Foo6
+
+  static: doAssert compiles(static(Foo6.sizeof))
+  static: doAssert Foo6.sizeof == Foo6GT.sizeof
+  static: doAssert (Foo6, int, array[2, Foo6]).sizeof ==
+    (Foo6GT, int, array[2, Foo6GT]).sizeof
+
+block:
+  type GoodImportcType {.importc: "signed char", nodecl.} = char
+    # "good" in sense the sizeof will match
+  ensureCgen GoodImportcType
+
+block:
+  type Foo6{.importc.} = object
+    a1: cint
+  doAssert compiles(Foo6.sizeof)
+  static: doAssert not compiles(static(Foo6.sizeof))
+
+when defined caseBad:
+  # Each case below should give a static cgen assert fail message
+
+  block:
+    type BadImportcType {.importc: "unsigned char", nodecl.} = uint64
+      # "sizeof" check will fail
+    ensureCgen BadImportcType
+
+  block:
+    type Foo2AliasBad{.importc: "struct Foo2", size: 1.} = object
+      a: cint
+    ensureCgen Foo2AliasBad
+
+  block:
+    type Foo5{.importc.} = array[4, cint]
+    ensureCgen Foo5
+
+  block:
+    type Foo5{.importc.} = array[3, bool]
+    ensureCgen Foo5
+
+  block:
+    type Foo6{.importc:"struct Foo6", completeStruct.} = object
+      a1: cint
+      # a2: bool # missing this should trigger assert fail
+      a3: cfloat
+      a4: ptr Foo6
+    ensureCgen Foo6
+
+  when false:
+    block:
+      # pre-existing BUG: this should give a CT error in semcheck because `size`
+      # disagrees with `array[3, cint]`
+      type Foo5{.importc, size: 1.} = array[3, cint]
+      ensureCgen Foo5
diff --git a/tests/misc/msizeof5.nim.cfg b/tests/misc/msizeof5.nim.cfg
new file mode 100644
index 000000000..dc0712a8c
--- /dev/null
+++ b/tests/misc/msizeof5.nim.cfg
@@ -0,0 +1,5 @@
+# Do not limit number of error messages from backend compiler.
+gcc.options.always %= "${gcc.options.always} -fmax-errors=100"
+clang.options.always %= "${clang.options.always} -ferror-limit=100"
+gcc.cpp.options.always %= "${gcc.cpp.options.always} -fmax-errors=100"
+clang.cpp.options.always %= "${clang.cpp.options.always} -ferror-limit=100"
diff --git a/tests/misc/mtlsemulation.h b/tests/misc/mtlsemulation.h
new file mode 100644
index 000000000..992977acd
--- /dev/null
+++ b/tests/misc/mtlsemulation.h
@@ -0,0 +1,37 @@
+#include <stdio.h>
+
+struct Foo1 {
+  /*
+  uncommenting would give:
+  error: initializer for thread-local variable must be a constant expression
+  N_LIB_PRIVATE NIM_THREADVAR Foo1 g1__9brEZhPEldbVrNpdRGmWESA;
+  */
+  // Foo1() noexcept { }
+
+  /*
+  uncommenting would give:
+  error: type of thread-local variable has non-trivial destruction
+  */
+  // ~Foo1() { }
+  int x;
+};
+
+struct Foo2 {
+  Foo2() noexcept { }
+  ~Foo2() { }
+  int x;
+};
+
+static int ctorCalls = 0;
+static int dtorCalls = 0;
+
+struct Foo3 {
+  Foo3() noexcept {
+    ctorCalls = ctorCalls + 1;
+    x = 10;
+  }
+  ~Foo3() {
+    dtorCalls = dtorCalls + 1;
+  }
+  int x;
+};
diff --git a/tests/misc/mvarious.nim b/tests/misc/mvarious.nim
new file mode 100644
index 000000000..8efe7c92f
--- /dev/null
+++ b/tests/misc/mvarious.nim
@@ -0,0 +1,6 @@
+# Test a submodule
+
+#type
+#  TStringArr = array[0.. *] of string
+
+proc exportme* = discard
diff --git a/tests/misc/parsecomb.nim b/tests/misc/parsecomb.nim
new file mode 100644
index 000000000..4f149cbf6
--- /dev/null
+++ b/tests/misc/parsecomb.nim
@@ -0,0 +1,109 @@
+discard """
+  matrix: "--mm:arc; --mm:refc"
+"""
+
+type Input[T] = object
+  toks: seq[T]
+  index: int
+
+type
+  ResultKind* = enum rkSuccess, rkFailure
+  Result*[T, O] = object
+    case kind*: ResultKind
+    of rkSuccess:
+      output*: O
+      input: Input[T]
+    of rkFailure:
+      nil
+
+type
+  Parser*[T, O] = proc (input: Input[T]): Result[T, O]
+
+proc unit*[T, O](v: O): Parser[T, O] =
+  result = proc (inp: Input[T]): Result[T, O] =
+    Result[T, O](kind: rkSuccess, output: v, input: inp)
+
+proc fail*[T, O](): Parser[T, O] =
+  result = proc (inp: Input[T]): Result[T, O] =
+    Result(kind: rkFailure)
+
+method runInput[T, O](self: Parser[T, O], inp: Input[T]): Result[T, O] =
+  # hmmm ..
+  type tmp = proc (input: Input[T]): Result[T, O]
+  # XXX: above needed for now, as without the `tmp` bit below, it compiles to invalid C.
+  tmp(self)(inp)
+
+proc run*[T, O](self: Parser[T, O], toks: seq[T]): Result[T, O] =
+  self.runInput(Input[T](toks: toks, index: 0))
+
+proc chain*[T, O1, O2](self: Parser[T, O1], nextp: proc (v: O1): Parser[T, O2]): Parser[T, O2] =
+  result = proc (inp: Input[T]): Result[T, O2] =
+    let r = self.runInput(inp)
+    case r.kind:
+    of rkSuccess:
+      nextp(r.output).runInput(r.input)
+    of rkFailure:
+      Result[T, O2](kind: rkFailure)
+
+method skip[T](self: Input[T], n: int): Input[T] {.base.} =
+  Input[T](toks: self.toks, index: self.index + n)
+
+proc pskip*[T](n: int): Parser[T, tuple[]] =
+  result = proc (inp: Input[T]): Result[T, tuple[]] =
+    if inp.index + n <= inp.toks.len:
+      Result[T, tuple[]](kind: rkSuccess, output: (), input: inp.skip(n))
+    else:
+      Result[T, tuple[]](kind: rkFailure)
+
+proc tok*[T](t: T): Parser[T, T] =
+  result = proc (inp: Input[T]): Result[T, T] =
+    if inp.index < inp.toks.len and inp.toks[inp.index] == t:
+      pskip[T](1).then(unit[T, T](t)).runInput(inp)
+    else:
+      Result[T, T](kind: rkFailure)
+
+proc `+`*[T, O](first: Parser[T, O], second: Parser[T, O]): Parser[T, O] =
+  result = proc (inp: Input[T]): Result[T, O] =
+    let r = first.runInput(inp)
+    case r.kind
+    of rkSuccess:
+      r
+    else:
+      second.runInput(inp)
+
+# end of primitives (definitions involving Parser(..))
+
+proc map*[T, O1, O2](self: Parser[T, O1], p: proc (v: O1): O2): Parser[T, O2] =
+  self.chain(proc (v: O1): Parser[T, O2] =
+    unit[T, O2](p(v)))
+
+proc then*[T, O1, O2](self: Parser[T, O1], next: Parser[T, O2]): Parser[T, O2] =
+  self.chain(proc (v: O1): Parser[T, O2] =
+    next)
+
+proc `*`*[T, O1, O2](first: Parser[T, O1], second: Parser[T, O2]): Parser[T, (O1, O2)] =
+  first.chain(proc (v1: O1): Parser[T, (O1, O2)] =
+    second.map(proc (v2: O2): (O1, O2) =
+      (v1, v2)))
+
+proc repeat0*[T, O](inner: Parser[T, O]): Parser[T, seq[O]] =
+  var nothing = unit[T, seq[O]](@[])
+  inner.chain(proc(v: O): Parser[T, seq[O]] =
+    repeat0(inner).map(proc(vs: seq[O]): seq[O] =
+      @[v] & vs)) + nothing
+
+proc repeat1*[T, O](inner: Parser[T, O]): Parser[T, seq[O]] =
+  inner.chain(proc(v: O): Parser[T, seq[O]] =
+    repeat0(inner).map(proc(vs: seq[O]): seq[O] =
+      @[v] & vs))
+
+proc leftRec*[T, O, A](inner: Parser[T, O], after: Parser[T, A], fold: proc(i: O, a: A): O): Parser[T, O] =
+  (inner*repeat0(after)).map(proc(ias: (O, seq[A])): O =
+    var (i, asx) = ias
+    for a in asx:
+      i = fold(i, a)
+    i)
+
+proc lazy*[T, O](inner: proc(): Parser[T, O]): Parser[T, O] =
+  unit[T, tuple[]](()).chain(proc(v: tuple[]): Parser[T, O] =
+    inner())
diff --git a/tests/misc/t11634.nim b/tests/misc/t11634.nim
new file mode 100644
index 000000000..390af40f4
--- /dev/null
+++ b/tests/misc/t11634.nim
@@ -0,0 +1,17 @@
+discard """
+  action: reject
+"""
+
+type Foo = ref object
+  val: int
+
+proc divmod(a, b: Foo): (Foo, Foo) =
+  (
+    Foo(val: a.val div b.val),
+    Foo(val: a.val mod b.val)
+  )
+
+block:
+  let a {.compileTime.} = Foo(val: 2)
+  let b {.compileTime.} = Foo(val: 3)
+  let (c11634 {.compileTime.}, d11634 {.compileTime.}) = divmod(a, b)
diff --git a/tests/misc/t12480.nim b/tests/misc/t12480.nim
new file mode 100644
index 000000000..992533ef6
--- /dev/null
+++ b/tests/misc/t12480.nim
@@ -0,0 +1,5 @@
+discard """
+  errormsg: "'return' not allowed here"
+"""
+
+return
\ No newline at end of file
diff --git a/tests/misc/t12869.nim b/tests/misc/t12869.nim
new file mode 100644
index 000000000..054e28a03
--- /dev/null
+++ b/tests/misc/t12869.nim
@@ -0,0 +1,14 @@
+discard """
+  errormsg: "type mismatch: got <openArray[int], proc (x: GenericParam, y: GenericParam): auto, SortOrder>"
+  line: 12
+"""
+
+import sugar
+from algorithm import sorted, SortOrder
+
+let a = 5
+
+proc sorted*[T](a: openArray[T], key: proc(v: T): int, order = SortOrder.Ascending): seq[T] =
+  sorted(a, (x, y) => key(x) < key(y), order)
+
+echo sorted(@[9, 1, 8, 2, 6, 4, 5, 0], (x) => (a - x).abs)
diff --git a/tests/misc/t14667.nim b/tests/misc/t14667.nim
new file mode 100644
index 000000000..3034e2841
--- /dev/null
+++ b/tests/misc/t14667.nim
@@ -0,0 +1,12 @@
+discard """
+  matrix: "--cc:vcc"
+  disabled: "linux"
+  disabled: "bsd"
+  disabled: "osx"
+  disabled: "unix"
+  disabled: "posix"
+"""
+
+type A = tuple
+discard ()
+discard default(A)
diff --git a/tests/misc/t15351.nim b/tests/misc/t15351.nim
new file mode 100644
index 000000000..c31e604a2
--- /dev/null
+++ b/tests/misc/t15351.nim
@@ -0,0 +1,5 @@
+discard """
+  action: "compile"
+"""
+var
+  ## TODO: broken
diff --git a/tests/misc/t15955.nim b/tests/misc/t15955.nim
new file mode 100644
index 000000000..7441e5398
--- /dev/null
+++ b/tests/misc/t15955.nim
@@ -0,0 +1,22 @@
+discard """
+joinable: false
+"""
+
+import stdtest/specialpaths
+import std/[osproc, strformat, os]
+
+const
+  nim = getCurrentCompilerExe()
+  buildLib = buildDir / "libD20220923T19380"
+  currentDir = splitFile(currentSourcePath).dir
+  file = currentDir / "m15955.nim"
+  main = currentDir / "m15955_main.nim"
+
+
+proc runCmd(cmd: string) =
+  let (msg, code) = execCmdEx(cmd)
+  doAssert code == 0, msg
+
+
+runCmd fmt"{nim} c -o:{buildLib} --nomain --nimMainPrefix:libA -f --app:staticlib {file}"
+runCmd fmt"{nim} c -r {main}"
diff --git a/tests/misc/t16244.nim b/tests/misc/t16244.nim
new file mode 100644
index 000000000..5e8128736
--- /dev/null
+++ b/tests/misc/t16244.nim
@@ -0,0 +1,9 @@
+discard """
+  errormsg: "type mismatch: got <int, float64>"
+  line: 9
+"""
+
+proc g(): auto = 1
+proc h(): auto = 1.0
+
+var a = g() + h()
diff --git a/tests/misc/t16264.nim b/tests/misc/t16264.nim
new file mode 100644
index 000000000..afe319e6c
--- /dev/null
+++ b/tests/misc/t16264.nim
@@ -0,0 +1,2 @@
+import times
+doAssert low(Time) == fromUnix(0)
\ No newline at end of file
diff --git a/tests/misc/t16541.nim b/tests/misc/t16541.nim
new file mode 100644
index 000000000..452327e8f
--- /dev/null
+++ b/tests/misc/t16541.nim
@@ -0,0 +1,12 @@
+discard """
+  action: "reject"
+
+"""
+
+import strutils, sugar, nre
+
+proc my_replace*(s: string, r: Regex, by: string | (proc (match: string): string)): string =
+  nre.replace(s, r, by)
+
+discard my_replace("abcde", re"[bcd]", match => match.to_upper) == "aBCDe"
+discard my_replace("abcde", re"[bcd]", (match: string) => match.to_upper) == "aBCDe"
diff --git a/tests/misc/t17286.nim b/tests/misc/t17286.nim
new file mode 100644
index 000000000..3a54e624e
--- /dev/null
+++ b/tests/misc/t17286.nim
@@ -0,0 +1,16 @@
+discard """
+  cmd: "nim check -b:js $file"
+  action: "compile"
+"""
+
+# bug #17286
+
+import std/compilesettings
+
+static:
+  doAssert querySetting(backend) == "js"
+  doAssert defined(js)
+  doAssert not defined(c)
+
+import random
+randomize()
\ No newline at end of file
diff --git a/tests/misc/t18077.nim b/tests/misc/t18077.nim
new file mode 100644
index 000000000..6cd05d575
--- /dev/null
+++ b/tests/misc/t18077.nim
@@ -0,0 +1,21 @@
+discard """
+  cmd: '''nim doc -d:nimTestsT18077b:4 --doccmd:"-d:nimTestsT18077 -d:nimTestsT18077b:3 --hints:off" $file'''
+  action: compile
+"""
+
+# bug #18077
+
+const nimTestsT18077b {.intdefine.} = 1
+
+static:
+  when defined(nimdoc):
+    doAssert nimTestsT18077b == 4
+    doAssert not defined(nimTestsT18077)
+  else:
+    doAssert defined(nimTestsT18077)
+    doAssert nimTestsT18077b == 3
+
+runnableExamples:
+  const nimTestsT18077b {.intdefine.} = 2
+  doAssert nimTestsT18077b == 3
+  doAssert defined(nimTestsT18077)
diff --git a/tests/misc/t18079.nim b/tests/misc/t18079.nim
new file mode 100644
index 000000000..ae64bbff9
--- /dev/null
+++ b/tests/misc/t18079.nim
@@ -0,0 +1,15 @@
+discard """
+  matrix: "--mm:orc"
+"""
+
+type
+  Foo = object
+    y: int
+
+  Bar = object
+    x: Foo
+
+proc baz(state: var Bar):int = 
+  state.x.y = 2
+  state.x.y
+doAssert baz((ref Bar)(x: (new Foo)[])[]) == 2
diff --git a/tests/misc/t19046.nim b/tests/misc/t19046.nim
new file mode 100644
index 000000000..b3bfec7ae
--- /dev/null
+++ b/tests/misc/t19046.nim
@@ -0,0 +1,19 @@
+discard """
+  targets: "c cpp"
+  matrix: "--threads:on"
+  disabled: "win"
+  disabled: "osx"
+  action: compile
+"""
+
+# bug #19046
+
+import std/os
+
+var t: Thread[void]
+
+proc test = discard
+proc main = 
+  createThread(t, test)
+  pinToCpu(t, 1)
+main()
\ No newline at end of file
diff --git a/tests/misc/t20253.nim b/tests/misc/t20253.nim
new file mode 100644
index 000000000..d47c36c55
--- /dev/null
+++ b/tests/misc/t20253.nim
@@ -0,0 +1,10 @@
+discard """
+  errormsg: "'result' requires explicit initialization"
+  line: 10
+"""
+
+type Meow {.requiresInit.} = object 
+  init: bool
+
+proc initMeow(): Meow =
+  discard
diff --git a/tests/misc/t20289.nim b/tests/misc/t20289.nim
new file mode 100644
index 000000000..5a0a269f0
--- /dev/null
+++ b/tests/misc/t20289.nim
@@ -0,0 +1,15 @@
+discard """
+  action: reject
+"""
+
+type E[T] = object
+  v: T
+
+template j[T](R: type E[T], x: untyped): R = R(v: x)
+template d[T](O: type E, v: T): E[T] = E[T].j(v)
+
+proc w[T](): E[T] =
+  template r(k: int): auto = default(T)
+  E.d r
+
+discard w[int]()
diff --git a/tests/misc/t20456_2.nim b/tests/misc/t20456_2.nim
new file mode 100644
index 000000000..37e52c452
--- /dev/null
+++ b/tests/misc/t20456_2.nim
@@ -0,0 +1,14 @@
+discard """
+  joinable: false
+"""
+
+import std/[osproc, os, strformat]
+from stdtest/specialpaths import testsDir
+
+when defined(nimPreviewSlimSystem):
+  import std/assertions
+
+const
+  nim = getCurrentCompilerExe()
+  file = testsDir / "misc" / "m20456.nims"
+doAssert execCmd(fmt"{nim} check {file}") == 0
diff --git a/tests/misc/t20883.nim b/tests/misc/t20883.nim
new file mode 100644
index 000000000..92e7929f4
--- /dev/null
+++ b/tests/misc/t20883.nim
@@ -0,0 +1,13 @@
+discard """
+  action: reject
+nimout: '''
+t20883.nim(13, 4) template/generic instantiation of `foo` from here
+t20883.nim(9, 11) Error: cannot instantiate: 'U'
+'''
+"""
+
+proc foo*[U](x: U = U(1e-6)) =
+  echo x
+
+foo[float]()
+foo()
diff --git a/tests/misc/t21109.nim b/tests/misc/t21109.nim
new file mode 100644
index 000000000..0f7980896
--- /dev/null
+++ b/tests/misc/t21109.nim
@@ -0,0 +1,13 @@
+discard """
+  action: reject
+  errormsg: "type expected"
+  file: "iterators.nim"
+"""
+
+
+template b(j: untyped) = j
+template m() = discard
+
+b:
+  for t, f in @[]:
+    m()
diff --git a/tests/misc/t21443.nim b/tests/misc/t21443.nim
new file mode 100644
index 000000000..70413c5b3
--- /dev/null
+++ b/tests/misc/t21443.nim
@@ -0,0 +1,6 @@
+import std/envvars
+
+# bug #19292
+putEnv("NimPutEnvTest", "test")
+# bug #21122
+doAssert getEnv("NimPutEnvTest") == "test"
diff --git a/tests/misc/t23240.nim b/tests/misc/t23240.nim
new file mode 100644
index 000000000..d5edcefe8
--- /dev/null
+++ b/tests/misc/t23240.nim
@@ -0,0 +1,6 @@
+discard """
+  cmd: "nim c foo/bar.nim"
+  action: "reject"
+  errormsg: "cannot open 'foo/'"
+  file: ""
+"""
diff --git a/tests/misc/t3482.nim b/tests/misc/t3482.nim
new file mode 100644
index 000000000..33b3b8f40
--- /dev/null
+++ b/tests/misc/t3482.nim
@@ -0,0 +1,15 @@
+discard """
+  action: reject
+  nimout: "t3482.nim(13, 8) Error: undeclared identifier: 'output'"
+"""
+# bug #3482 (correct behavior since 1.4.0, cgen error in 1.2.0)
+template foo*(body: typed) =
+  if true:
+    body
+
+proc test =
+  foo:
+    var output = ""
+  echo output.len
+
+test()
diff --git a/tests/misc/t3907.nim b/tests/misc/t3907.nim
new file mode 100644
index 000000000..45fc75e81
--- /dev/null
+++ b/tests/misc/t3907.nim
@@ -0,0 +1,10 @@
+import std/assertions
+
+let a = 0
+let b = if false: -1 else: a
+doAssert b == 0
+
+let c: range[0..high(int)] = 0
+let d = if false: -1 else: c
+
+doAssert d == 0
diff --git a/tests/misc/t5540.nim b/tests/misc/t5540.nim
new file mode 100644
index 000000000..6a19e70e1
--- /dev/null
+++ b/tests/misc/t5540.nim
@@ -0,0 +1,45 @@
+# bug #5540; works in 1.2.0
+# fails in 1.0 (Error: cannot generate VM code for)
+# fails in 0.18.0 (Error: type mismatch: got <type T>)
+
+block:
+  type
+    Fruit = object
+    Yellow = object
+      a: int
+  template getColor(x: typedesc[Fruit]): typedesc = Yellow
+  type
+    Banana[T] = object
+      b: T
+      a: getColor(Fruit)
+    Apple[T] = object
+      a: T
+      b: getColor(T)
+  block:
+    var x: Banana[int]
+    doAssert x.b == 0
+    doAssert x.a is Yellow
+  block:
+    var x: Apple[Fruit]
+    doAssert x.b is Yellow
+
+block:
+  type
+    Fruit = object
+    Yellow = object
+      a: int
+    
+  template getColor(x: typedesc[Fruit]): typedesc = Yellow
+
+  type
+    Banana[T] = object
+      b: T
+      a: getColor(Fruit)
+
+    Apple[T] = object
+      a: T
+      b: getColor(T)
+      
+  var x: Banana[int]
+  x.b = 13
+  x.a.a = 17
diff --git a/tests/misc/t6549.nim b/tests/misc/t6549.nim
new file mode 100644
index 000000000..1d7393318
--- /dev/null
+++ b/tests/misc/t6549.nim
@@ -0,0 +1,4 @@
+
+const l = $(range[low(uint64) .. high(uint64)])
+const r = "range 0..18446744073709551615(uint64)"
+doAssert l == r
diff --git a/tests/misc/t8404.nim b/tests/misc/t8404.nim
new file mode 100644
index 000000000..87991071c
--- /dev/null
+++ b/tests/misc/t8404.nim
@@ -0,0 +1,33 @@
+discard """
+  targets: "c cpp js"
+"""
+template main() =
+  block: # bug #8404
+    # can conv
+    template float2int(T) =
+      var a = -1.0
+      let b = T(a)
+      doAssert b < 0
+      let c = b + 1
+      doAssert c is T
+      doAssert c == 0
+
+    float2int(int8)
+    float2int(int16)
+    float2int(int32)
+    float2int(int64)
+
+  block:
+    # can handle middle conv
+    # `/` can trigger int to float
+    template float2int(T) =
+      let n = T(1 / 256)
+      doAssert n == 0
+
+    float2int(int8)
+    float2int(int16)
+    float2int(int32)
+    # float2int(int64)
+main()
+static:
+  main()
diff --git a/tests/misc/t8545.nim b/tests/misc/t8545.nim
new file mode 100644
index 000000000..48b886cb8
--- /dev/null
+++ b/tests/misc/t8545.nim
@@ -0,0 +1,24 @@
+discard """
+  # just tests that this doesn't crash the compiler
+  errormsg: "cannot instantiate: 'a:type'"
+"""
+
+# bug #8545
+
+template bar(a: static[bool]): untyped = int
+
+proc main() =
+  proc foo1(a: static[bool]): auto = 1
+  doAssert foo1(true) == 1
+
+  proc foo2(a: static[bool]): bar(a) = 1
+  doAssert foo2(true) == 1
+
+  proc foo3(a: static[bool]): bar(cast[static[bool]](a)) = 1
+  doAssert foo3(true) == 1
+
+  proc foo4(a: static[bool]): bar(static(a)) = 1
+  doAssert foo4(true) == 1
+
+static: main()
+main()
diff --git a/tests/misc/t9039.nim b/tests/misc/t9039.nim
new file mode 100644
index 000000000..3271cd34e
--- /dev/null
+++ b/tests/misc/t9039.nim
@@ -0,0 +1,24 @@
+discard """
+  action: reject
+  nimout: '''
+t9039.nim(22, 22) Error: type mismatch: got <array[0..2, int], int, array[0..1, int]>
+but expression 'nesting + 1' is of type: int
+'''
+"""
+
+# bug #9039; this used to hang in 0.19.0
+
+
+
+
+
+# line 15
+func default(T: typedesc[array]): T = discard
+doAssert default(array[3, int]) == [0, 0, 0]
+func shapeBad*[T: not char](s: openArray[T], rank: static[int], nesting = 0, parent_shape = default(array[rank, int])): array[rank, int] =
+  result = parent_shape
+  result[nesting] = s.len
+  when (T is seq|array):
+    result = shapeBad(s[0], nesting + 1, result)
+let a1 = [1, 2, 3].shapeBad(rank = 1)
+let a2 = [[1, 2, 3], [4, 5, 6]].shapeBad(rank = 2)
diff --git a/tests/misc/t9091.nim b/tests/misc/t9091.nim
new file mode 100644
index 000000000..6e7a98ca5
--- /dev/null
+++ b/tests/misc/t9091.nim
@@ -0,0 +1,33 @@
+# bug #9091
+
+import streams
+
+block:
+  type Mine = ref object
+    a: int
+
+  proc write(io: Stream, t: Mine) =
+    io.write("sure")
+
+  let str = newStringStream()
+  let mi = new Mine
+
+  str.write(mi)
+  str.setPosition 0
+  doAssert str.readAll == "sure"
+
+block:
+  type
+    AObj = object
+      x: int
+
+  proc foo(a: int): string = ""
+
+  proc test(args: varargs[string, foo]) =
+    doAssert false
+
+  proc test(a: AObj) =
+    discard
+
+  let x = AObj()
+  test(x)
diff --git a/tests/misc/t9710.nim b/tests/misc/t9710.nim
new file mode 100644
index 000000000..c65cb7bf4
--- /dev/null
+++ b/tests/misc/t9710.nim
@@ -0,0 +1,6 @@
+discard """
+  matrix: "--debugger:native"
+"""
+# bug #9710
+for i in 1 || 200:
+  discard i
diff --git a/tests/misc/t99bott.nim b/tests/misc/t99bott.nim
new file mode 100644
index 000000000..f60023818
--- /dev/null
+++ b/tests/misc/t99bott.nim
@@ -0,0 +1,32 @@
+discard """
+  errormsg: "cannot evaluate at compile time: bn"
+  file: "t99bott.nim"
+  line: 26
+"""
+
+## 99 Bottles of Beer
+## http://www.99-bottles-of-beer.net/
+## Nim version
+
+## Author: Philippe Lhoste <PhiLho(a)GMX.net> http://Phi.Lho.free.fr
+# 2012-11-25
+# Loosely based on my old Lua version... Updated to current official lyrics.
+
+proc GetBottleNumber(n: int): string =
+  var bs: string
+  if n == 0:
+    bs = "No more bottles"
+  elif n == 1:
+    bs = "1 bottle"
+  else:
+    bs = $n & " bottles"
+  return bs & " of beer"
+
+for bn in countdown(99, 1):
+  const cur = GetBottleNumber(bn)
+  echo(cur, " on the wall, ", cur, ".")
+  echo("Take one down and pass it around, ", GetBottleNumber(bn-1),
+       " on the wall.\n")
+
+echo "No more bottles of beer on the wall, no more bottles of beer."
+echo "Go to the store and buy some more, 99 bottles of beer on the wall."
diff --git a/tests/misc/tack.nim b/tests/misc/tack.nim
new file mode 100644
index 000000000..458395ef6
--- /dev/null
+++ b/tests/misc/tack.nim
@@ -0,0 +1,19 @@
+discard """
+  output: "125"
+"""
+# the Ackermann function
+
+proc ack(x, y: int): int =
+  if x != 0:
+    if y != 0:
+      return ack(x-1, ack(x, y-1))
+    return ack(x-1, 1)
+  else:
+    return y + 1
+#  if x == 0: return y + 1
+#  elif y == 0: return ack(x-1, 1)
+#  else: return ack(x-1, ack(x, y-1))
+
+# echo(ack(0, 0))
+write(stdout, ack(3, 4)) #OUT 125
+write stdout, "\n"
diff --git a/tests/misc/taddr.nim b/tests/misc/taddr.nim
new file mode 100644
index 000000000..64f95c7e3
--- /dev/null
+++ b/tests/misc/taddr.nim
@@ -0,0 +1,295 @@
+discard """
+  targets: "c cpp js"
+  matrix: "; -d:release"
+"""
+
+type T = object
+  x: int
+  s: string
+
+var obj: T
+var fieldAddr = addr(obj.x)
+var objAddr = addr(obj)
+
+# Integer tests
+var field = fieldAddr[]
+doAssert field == 0
+
+var objDeref = objAddr[]
+doAssert objDeref.x == 0
+
+# Change value
+obj.x = 42
+
+doAssert field == 0
+doAssert objDeref.x == 0
+
+field = fieldAddr[]
+objDeref = objAddr[]
+
+doAssert field == 42
+doAssert objDeref.x == 42
+
+# String tests
+obj.s = "lorem ipsum dolor sit amet"
+when defined(gcArc) or defined(gcOrc):
+  prepareMutation(obj.s)
+
+
+var indexAddr = addr(obj.s[2])
+
+doAssert indexAddr[] == 'r'
+
+indexAddr[] = 'd'
+
+doAssert indexAddr[] == 'd'
+
+doAssert obj.s == "lodem ipsum dolor sit amet"
+
+# Bug #2148
+var x: array[2, int]
+var y = addr x[1]
+
+y[] = 12
+doAssert(x[1] == 12)
+
+type
+  Foo = object
+    bar: int
+
+var foo: array[2, Foo]
+var z = addr foo[1]
+
+z[].bar = 12345
+doAssert(foo[1].bar == 12345)
+
+var t : tuple[a, b: int]
+var pt = addr t[1]
+pt[] = 123
+doAssert(t.b == 123)
+
+#block: # Test "untyped" pointer.
+proc testPtr(p: pointer, a: int) =
+  doAssert(a == 5)
+  (cast[ptr int](p))[] = 124
+var i = 123
+testPtr(addr i, 5)
+doAssert(i == 124)
+
+var someGlobal = 5
+proc getSomeGlobalPtr(): ptr int = addr someGlobal
+let someGlobalPtr = getSomeGlobalPtr()
+doAssert(someGlobalPtr[] == 5)
+someGlobalPtr[] = 10
+doAssert(someGlobal == 10)
+
+block:
+  # bug #14576
+  # lots of these used to give: Error: internal error: genAddr: 2
+  proc byLent[T](a: T): lent T = a
+  proc byPtr[T](a: T): ptr T = a.addr
+
+  block:
+    let a = (10,11)
+    let (x,y) = byLent(a)
+    doAssert (x,y) == a
+
+  block: # (with -d:release) bug #14578
+    let a = 10
+    doAssert byLent(a) == 10
+    let a2 = byLent(a)
+    doAssert a2 == 10
+
+  block:
+    let a = [11,12]
+    doAssert byLent(a) == [11,12] # bug #15958
+    let a2 = (11,)
+    doAssert byLent(a2) == (11,)
+
+  block:
+    proc byLent2[T](a: seq[T]): lent T = a[1]
+    var a = @[20,21,22]
+    doAssert byLent2(a) == 21
+
+  block: # sanity checks
+    proc bar[T](a: var T): var T = a
+    var a = (10, 11)
+    let (k,v) = bar(a)
+    doAssert (k, v) == a
+    doAssert k == 10
+    bar(a)[0]+=100
+    doAssert a == (110, 11)
+    var a2 = 12
+    doAssert bar(a2) == a2
+    bar(a2).inc
+    doAssert a2 == 13
+
+  block: # pending bug #15959
+    when false:
+      proc byLent2[T](a: T): lent type(a[0]) = a[0]
+
+proc test14420() = # bug #14420
+  # s/proc/template/ would hit bug #16005
+  block:
+    type Foo = object
+      x: float
+
+    proc fn(a: var Foo): var float =
+      ## WAS: discard <- turn this into a comment (or a `discard`) and error disappears
+      # result = a.x # this works
+      a.x #  WAS: Error: limited VM support for 'addr'
+
+    proc fn2(a: var Foo): var float =
+      result = a.x # this works
+      a.x #  WAS: Error: limited VM support for 'addr'
+
+    var a = Foo()
+    discard fn(a)
+    discard fn2(a)
+
+  block:
+    proc byLent2[T](a: T): lent T =
+      runnableExamples: discard
+      a
+    proc byLent3[T](a: T): lent T =
+      runnableExamples: discard
+      result = a
+    var a = 10
+    let x3 = byLent3(a) # works
+    let x2 = byLent2(a) # WAS: Error: internal error: genAddr: nkStmtListExpr
+
+  block:
+    type MyOption[T] = object
+      case has: bool
+      of true:
+        value: T
+      of false:
+        discard
+    func some[T](val: T): MyOption[T] =
+      result = MyOption[T](has: true, value: val)
+    func get[T](opt: MyOption[T]): lent T =
+      doAssert opt.has
+      # result = opt.value # this was ok
+      opt.value # this had the bug
+    let x = some(10)
+    doAssert x.get() == 10
+
+template test14339() = # bug #14339
+  block:
+    type
+      Node = ref object
+        val: int
+    proc bar(c: Node): var int =
+      var n = c # was: Error: limited VM support for 'addr'
+      c.val
+    var a = Node()
+    discard a.bar()
+  block:
+    type
+      Node = ref object
+        val: int
+    proc bar(c: Node): var int =
+      var n = c
+      doAssert n.val == n[].val
+      n.val
+    var a = Node(val: 3)
+    a.bar() = 5
+    when nimvm:
+      doAssert a.val == 5
+    else:
+      when not defined(js): # pending bug #16003
+        doAssert a.val == 5
+
+template testStatic15464() = # bug #15464
+  proc access(s: var seq[char], i: int): var char = s[i]
+  proc access(s: var string, i: int): var char = s[i]
+  static:
+    var s = @['a', 'b', 'c']
+    access(s, 2) = 'C'
+    doAssert access(s, 2) == 'C'
+  static:
+    var s = "abc"
+    access(s, 2) = 'C'
+    doAssert access(s, 2) == 'C'
+
+proc test15464() = # bug #15464 (v2)
+  proc access(s: var seq[char], i: int): var char = s[i]
+  proc access(s: var string, i: int): var char = s[i]
+  block:
+    var s = @['a', 'b', 'c']
+    access(s, 2) = 'C'
+    doAssert access(s, 2) == 'C'
+  block:
+    var s = "abc"
+    access(s, 2) = 'C'
+    doAssert access(s, 2) == 'C'
+
+block: # bug #15939
+  block:
+    const foo = "foo"
+    proc proc1(s: var string) =
+      if s[^1] notin {'a'..'z'}:
+        s = ""
+    proc proc2(f: string): string =
+      result = f
+      proc1(result)
+    const bar = proc2(foo)
+    doAssert bar == "foo"
+
+template prepareMutationForOrc(x: string) =
+  when defined(gcArc) or defined(gcOrc):
+    when nimvm:
+      discard
+    else:
+      prepareMutation(x)
+
+proc test15939() = # bug #15939 (v2)
+  template fn(a) =
+    when typeof(a) is string:
+      prepareMutationForOrc(a)
+    let pa = a[0].addr
+    doAssert pa != nil
+    doAssert pa[] == 'a'
+    pa[] = 'x'
+    doAssert pa[] == 'x'
+    doAssert a == "xbc"
+    when not defined js: # otherwise overflows
+      let pa2 = cast[ptr char](cast[int](pa) + 1)
+      doAssert pa2[] == 'b'
+      pa2[] = 'B'
+      doAssert a == "xBc"
+
+  # mystring[ind].addr
+  var a = "abc"
+  fn(a)
+
+  # mycstring[ind].addr
+  template cstringTest =
+    var a2 = "abc"
+    prepareMutationForOrc(a2)
+    var b2 = a2.cstring
+    fn(b2)
+  when nimvm: cstringTest()
+  else: # can't take address of cstring element in js
+    when not defined(js): cstringTest()
+
+block: # bug #23499
+  template volatileStore[T](dest: ptr T, val: T) =
+    dest[] = val
+
+  proc foo =
+    var ctr = 0
+    volatileStore(addr ctr, 0)
+
+  foo()
+
+template main =
+  # xxx wrap all other tests here like that so they're also tested in VM
+  test14420()
+  test14339()
+  test15464()
+  test15939()
+
+testStatic15464()
+static: main()
+main()
diff --git a/tests/misc/tapp_lib_staticlib.nim b/tests/misc/tapp_lib_staticlib.nim
new file mode 100644
index 000000000..92c9acbc3
--- /dev/null
+++ b/tests/misc/tapp_lib_staticlib.nim
@@ -0,0 +1,27 @@
+discard """
+joinable: false
+"""
+
+# bug #16949
+
+when defined case1:
+  proc foo(): int {.exportc.} = 10
+elif defined case2:
+  proc foo(): int {.exportc, dynlib.} = 10
+elif defined caseMain:
+  proc foo(): int {.importc.}
+  doAssert foo() == 10
+else:
+  import stdtest/specialpaths
+  import std/[os, strformat, strutils, compilesettings]
+  proc runCmd(cmd: string) =
+    doAssert execShellCmd(cmd) == 0, $cmd
+  const
+    file = currentSourcePath
+    nim = getCurrentCompilerExe()
+    mode = querySetting(backend)
+  proc test(lib, options: string) =
+    runCmd fmt"{nim} {mode} -o:{lib} --nomain {options} -f {file}"
+    # runCmd fmt"{nim} r -b:{mode} --passl:{lib} -d:caseMain -f {file}" # pending https://github.com/nim-lang/Nim/pull/16945
+  test(buildDir / "libD20210205T172314.a", "--app:staticlib -d:nimLinkerWeakSymbols -d:case1")
+  test(buildDir / DynlibFormat % "D20210205T172720", "--app:lib -d:case2")
diff --git a/tests/misc/tbug1217bracketquotes.nim b/tests/misc/tbug1217bracketquotes.nim
new file mode 100644
index 000000000..90e67d45b
--- /dev/null
+++ b/tests/misc/tbug1217bracketquotes.nim
@@ -0,0 +1,14 @@
+discard """
+  output: "13{(.{}}{*4&*$**()&*@1235"
+"""
+
+type
+  Test = enum
+    `1`, `3`, `{`, `(.`, `{}}{`, `*4&*$**()&*@`
+
+let `.}` = 1
+let `(}` = 2
+let `[` = 3
+let `]` = 5
+
+echo `1`, `3`, `{`, `(.`, `{}}{`, `*4&*$**()&*@`, `.}`, `(}`, `[`, `]`
diff --git a/tests/misc/tbug511622.nim b/tests/misc/tbug511622.nim
new file mode 100644
index 000000000..1af6380ed
--- /dev/null
+++ b/tests/misc/tbug511622.nim
@@ -0,0 +1,12 @@
+discard """
+  output: "3"
+"""
+import math
+
+proc FibonacciA(n: int): int64 =
+  var fn = float64(n)
+  var p: float64 = (1.0 + sqrt(5.0)) / 2.0
+  var q: float64 = 1.0 / p
+  return int64((pow(p, fn) + pow(q, fn)) / sqrt(5.0))
+
+echo FibonacciA(4) #OUT 3
diff --git a/tests/misc/tcast.nim b/tests/misc/tcast.nim
new file mode 100644
index 000000000..73196e76c
--- /dev/null
+++ b/tests/misc/tcast.nim
@@ -0,0 +1,108 @@
+discard """
+  output: '''
+Hello World
+Hello World
+Hello World'''
+  joinable: false
+"""
+type MyProc = proc() {.cdecl.}
+type MyProc2 = proc() {.nimcall.}
+type MyProc3 = proc() #{.closure.} is implicit
+
+proc testProc() {.exportc:"foo".} = echo "Hello World"
+
+template reject(x) = doAssert(not compiles(x))
+
+proc callPointer(p: pointer) =
+  # can cast to proc(){.cdecl.}
+  let ffunc0 = cast[MyProc](p)
+  # can cast to proc(){.nimcall.}
+  let ffunc1 = cast[MyProc2](p)
+  # cannot cast to proc(){.closure.}
+  reject: cast[MyProc3](p)
+
+  ffunc0()
+  ffunc1()
+
+    # bug #5901
+  proc foo() {.importc.}
+  (cast[proc(a: int) {.cdecl.}](foo))(5)
+
+callPointer(cast[pointer](testProc))
+
+reject: discard cast[enum](0)
+proc a = echo "hi"
+
+reject: discard cast[ptr](a)
+
+# bug #15623
+block:
+  if false:
+    let x = cast[ptr int](nil)
+    echo x[]
+
+block:
+  if false:
+    var x: ref int = nil
+    echo cast[ptr int](x)[]
+
+block:
+  doAssert cast[int](cast[ptr int](nil)) == 0
+
+block:
+  var x: ref int = nil
+  doAssert cast[int](cast[ptr int](x)) == 0
+
+block: # cast of nil
+  block:
+    static:
+      let a = cast[pointer](nil)
+      doAssert a.repr == "nil"
+
+  block:
+    static:
+      doAssert cast[ptr int](nil).repr == "nil"
+
+  block:
+    const str = cast[ptr int](nil)
+    static:
+      doAssert str.repr == "nil"
+
+  block:
+    static:
+      doAssert cast[ptr int](nil).repr == "nil"
+
+  block:
+    static:
+      doAssert cast[RootRef](nil).repr == "nil"
+
+  when false: # xxx bug #15730, not fixed yet
+    block:
+      static:
+        doAssert cast[cstring](nil).repr == "nil"
+
+template main() =
+  # xxx move all under here to get tested in VM
+  block: # cast of enum
+    type Koo = enum k1, k2
+    type Goo = enum g1, g2
+    type Boo = enum b1 = -1, b2, b3, b4
+    type Coo = enum c1 = -1i8, c2, c3, c4
+    when nimvm:
+      # xxx: Error: VM does not support 'cast' from tyEnum to tyEnum
+      discard
+    else:
+      doAssert cast[Koo](k2) == k2
+      doAssert cast[Goo](k2) == g2
+      doAssert cast[Goo](k2.ord) == g2
+
+      doAssert b3.ord == 1
+      doAssert cast[Koo](b3) == k2
+      doAssert cast[Boo](k2) == b3
+
+      doAssert c3.ord == 1
+      doAssert cast[Koo](c3) == k2
+      doAssert cast[Coo](k2) == c3
+
+static: main()
+main()
diff --git a/tests/misc/tcharinc.nim b/tests/misc/tcharinc.nim
new file mode 100644
index 000000000..1b5d19c18
--- /dev/null
+++ b/tests/misc/tcharinc.nim
@@ -0,0 +1,10 @@
+discard """
+  output: "1"
+"""
+
+var c = '\0'
+while true:
+  if c == '\xFF': break
+  inc c
+
+echo "1"
diff --git a/tests/misc/tcmdline.nim b/tests/misc/tcmdline.nim
new file mode 100644
index 000000000..71e1301ca
--- /dev/null
+++ b/tests/misc/tcmdline.nim
@@ -0,0 +1,18 @@
+discard """
+outputsub: "Number of parameters: 0"
+joinable: false
+"""
+# Test the command line
+
+import
+  os, strutils
+
+var
+  i: int
+  params = paramCount()
+i = 0
+writeLine(stdout, "This exe: " & getAppFilename())
+writeLine(stdout, "Number of parameters: " & $params)
+while i <= params:
+  writeLine(stdout, paramStr(i))
+  i = i + 1
diff --git a/tests/misc/tconv.nim b/tests/misc/tconv.nim
new file mode 100644
index 000000000..90fae868b
--- /dev/null
+++ b/tests/misc/tconv.nim
@@ -0,0 +1,143 @@
+discard """
+  matrix: "--warningAsError:EnumConv --warningAsError:CStringConv"
+"""
+
+from std/enumutils import items  # missing from the example code
+from std/sequtils import toSeq
+
+template reject(x) =
+  static: doAssert(not compiles(x))
+template accept(x) =
+  static: doAssert(compiles(x))
+
+reject:
+    const x = int8(300)
+
+reject:
+    const x = int64(NaN)
+
+type
+    R = range[0..10]
+
+reject:
+    const x = R(11)
+
+reject:
+    const x = R(11.0)
+
+reject:
+    const x = R(NaN)
+
+reject:
+    const x = R(Inf)
+
+type
+    FloatRange = range[0'f..10'f]
+
+reject:
+    const x = FloatRange(-1'f)
+
+reject:
+    const x = FloatRange(-1)
+
+reject:
+    const x = FloatRange(NaN)
+
+block:
+    const x = float32(NaN)
+
+type E = enum a, b, c
+
+reject:
+    const e = E(4)
+
+block: # issue 3766
+
+  type R = range[0..2]
+
+  reject:
+    type
+      T[n: static[R]] = object
+      V = T[3.R]
+
+  reject:
+    proc r(x: static[R]) =
+      echo x
+    r 3.R
+
+
+block: # https://github.com/nim-lang/RFCs/issues/294
+  type Koo = enum k1, k2
+  type Goo = enum g1, g2
+
+  accept: Koo(k2)
+  accept: k2.Koo
+  accept: k2.int.Goo
+
+  reject: Goo(k2)
+  reject: k2.Goo
+  reject: k2.string
+
+  {.push warningAsError[EnumConv]:off.}
+  discard Goo(k2)
+  accept: Goo(k2)
+  accept: k2.Goo
+  reject: k2.string
+  {.pop.}
+
+  reject: Goo(k2)
+  reject: k2.Goo
+
+  type KooRange = range[k2..k2]
+  accept: KooRange(k2)
+  accept: k2.KooRange
+  let k2ranged: KooRange = k2
+  accept: Koo(k2ranged)
+  accept: k2ranged.Koo
+
+reject:
+  # bug #18550
+  proc f(c: char): cstring =
+    var x = newString(109*1024*1024)
+    x[0] = c
+    x
+
+{.push warning[AnyEnumConv]:on, warningAsError[AnyEnumConv]:on.}
+
+reject:
+  type
+    Foo = enum
+      one
+      three
+
+  var va = 2
+  var vb = va.Foo
+
+{.pop.}
+
+{.push warningAsError[HoleEnumConv]:on.}
+
+reject:
+  # bug #12815
+  type
+    Hole = enum
+      one = 1
+      three = 3
+
+  var va = 2
+  var vb = va.Hole
+
+block: # bug #22844
+  type
+    A = enum
+      a0 = 2
+      a1 = 4
+      a2
+    B[T] = enum
+      b0 = 2
+      b1 = 4
+
+  doAssert A.toSeq == [a0, a1, a2]
+  doAssert B[float].toSeq == [B[float].b0, B[float].b1]
+
+{.pop.}
diff --git a/tests/misc/tcsharpusingstatement.nim b/tests/misc/tcsharpusingstatement.nim
new file mode 100644
index 000000000..1ce553895
--- /dev/null
+++ b/tests/misc/tcsharpusingstatement.nim
@@ -0,0 +1,76 @@
+discard """
+  output: "Using test.Closing test."
+"""
+
+import
+  macros
+
+# This macro mimics the using statement from C#
+#
+# It's kept only as a test for the macro system
+# Nim's destructors offer a mechanism for automatic
+# disposal of resources.
+#
+macro autoClose(args: varargs[untyped]): untyped =
+  let e = callsite()
+  if e.len != 3:
+    error "Using statement: unexpected number of arguments. Got " &
+      $e.len & ", expected: 1 or more variable assignments and a block"
+
+  var args = e
+  var body = e[2]
+
+  var
+    variables : seq[NimNode]
+    closingCalls : seq[NimNode]
+
+  newSeq(variables, 0)
+  newSeq(closingCalls, 0)
+
+  for i in countup(1, args.len-2):
+    if args[i].kind == nnkExprEqExpr:
+      var varName = args[i][0]
+      var varValue = args[i][1]
+
+      var varAssignment = newNimNode(nnkIdentDefs)
+      varAssignment.add(varName)
+      varAssignment.add(newNimNode(nnkEmpty)) # empty means no type
+      varAssignment.add(varValue)
+      variables.add(varAssignment)
+
+      closingCalls.add(newCall(newIdentNode("close"), varName))
+    else:
+      error "Using statement: Unexpected expression. Got " &
+        $args[i].kind & " instead of assignment."
+
+  var varSection = newNimNode(nnkVarSection)
+  varSection.add(variables)
+
+  var finallyBlock = newNimNode(nnkStmtList)
+  finallyBlock.add(closingCalls)
+
+  result = quote do:
+    block:
+      `varSection`
+      try:
+        `body`
+      finally:
+        `finallyBlock`
+
+type
+  TResource* = object
+    field*: string
+
+proc openResource(param: string): TResource =
+  result.field = param
+
+proc close(r: var TResource) =
+  write(stdout, "Closing " & r.field & ".")
+
+proc use(r: var TResource) =
+  write(stdout, "Using " & r.field & ".")
+
+autoClose(r = openResource("test")):
+  use r
+
+write stdout, "\n"
diff --git a/tests/misc/tdangerisrelease.nim b/tests/misc/tdangerisrelease.nim
new file mode 100644
index 000000000..e1854dca5
--- /dev/null
+++ b/tests/misc/tdangerisrelease.nim
@@ -0,0 +1,14 @@
+discard """
+  cmd: "nim c $options -r $file"
+  matrix: "-d:danger; -d:release"
+  output: '''
+a
+b
+c
+'''
+"""
+
+echo "a"
+when defined(release):
+  echo "b"
+echo "c"
diff --git a/tests/misc/tdefine.nim b/tests/misc/tdefine.nim
new file mode 100644
index 000000000..f3fa4711f
--- /dev/null
+++ b/tests/misc/tdefine.nim
@@ -0,0 +1,77 @@
+discard """
+joinable: false
+cmd: "nim c $options -d:booldef -d:booldef2=false -d:intdef=2 -d:strdef=foobar -d:namespaced.define=false -d:double.namespaced.define -r $file"
+matrix: "; -d:useGenericDefine"
+"""
+
+when defined(useGenericDefine):
+  {.pragma: booldefine2, define.}
+  {.pragma: intdefine2, define.}
+  {.pragma: strdefine2, define.}
+else:
+  
+  {.pragma: booldefine2, booldefine.}
+  {.pragma: intdefine2, intdefine.}
+  {.pragma: strdefine2, strdefine.}
+
+const booldef {.booldefine2.} = false
+const booldef2 {.booldefine2.} = true
+const intdef {.intdefine2.} = 0
+const strdef {.strdefine2.} = ""
+
+doAssert defined(booldef)
+doAssert defined(booldef2)
+doAssert defined(intdef)
+doAssert defined(strdef)
+doAssert booldef
+doAssert not booldef2
+doAssert intdef == 2
+doAssert strdef == "foobar"
+
+when defined(useGenericDefine):
+  block:
+    const uintdef {.define: "intdef".}: uint = 17
+    doAssert intdef == int(uintdef)
+    const cstrdef {.define: "strdef".}: cstring = "not strdef"
+    doAssert $cstrdef == strdef
+    type FooBar = enum foo, bar, foobar
+    const enumdef {.define: "strdef".} = foo
+    doAssert $enumdef == strdef
+    doAssert enumdef == foobar
+
+# Intentionally not defined from command line
+const booldef3 {.booldefine2.} = true
+const intdef2 {.intdefine2.} = 1
+const strdef2 {.strdefine2.} = "abc"
+type T = object
+  when booldef3:
+    field1: int
+  when intdef2 == 1:
+    field2: int
+  when strdef2 == "abc":
+    field3: int
+
+doAssert not defined(booldef3)
+doAssert not defined(intdef2)
+doAssert not defined(strdef2)
+discard T(field1: 1, field2: 2, field3: 3)
+
+doAssert defined(namespaced.define)
+const `namespaced.define` {.booldefine2.} = true
+doAssert not `namespaced.define`
+when defined(useGenericDefine):
+  const aliasToNamespacedDefine {.define: "namespaced.define".} = not `namespaced.define`
+else:
+  const aliasToNamespacedDefine {.booldefine: "namespaced.define".} = not `namespaced.define`
+doAssert aliasToNamespacedDefine == `namespaced.define`
+
+doAssert defined(double.namespaced.define)
+const `double.namespaced.define` {.booldefine2.} = false
+doAssert `double.namespaced.define`
+when defined(useGenericDefine):
+  const aliasToDoubleNamespacedDefine {.define: "double.namespaced.define".} = not `double.namespaced.define`
+else:
+  const aliasToDoubleNamespacedDefine {.booldefine: "double.namespaced.define".} = not `double.namespaced.define`
+doAssert aliasToDoubleNamespacedDefine == `double.namespaced.define`
+
+doAssert not defined(namespaced.butnotdefined)
diff --git a/tests/misc/tdllvar.nim b/tests/misc/tdllvar.nim
new file mode 100644
index 000000000..68029ddf4
--- /dev/null
+++ b/tests/misc/tdllvar.nim
@@ -0,0 +1,18 @@
+discard """
+disabled: true
+"""
+
+import os
+
+proc getDllName: string =
+  result = "mylib.dll"
+  if fileExists(result): return
+  result = "mylib2.dll"
+  if fileExists(result): return
+  quit("could not load dynamic library")
+
+proc myImport(s: cstring) {.cdecl, importc, dynlib: getDllName().}
+proc myImport2(s: int) {.cdecl, importc, dynlib: getDllName().}
+
+myImport("test2")
+myImport2(12)
diff --git a/tests/misc/teventemitter.nim b/tests/misc/teventemitter.nim
new file mode 100644
index 000000000..7da1a2522
--- /dev/null
+++ b/tests/misc/teventemitter.nim
@@ -0,0 +1,32 @@
+discard """
+  output: "pie"
+"""
+
+import tables, lists
+
+type
+  EventArgs = object of RootObj
+  EventEmitter = object of RootObj
+    events*: Table[string, DoublyLinkedList[proc(e: EventArgs) {.nimcall.}]]
+
+proc emit*(emitter: EventEmitter, event: string, args: EventArgs) =
+  for fn in nodes(emitter.events[event]):
+    fn.value(args) #call function with args.
+
+proc on*(emitter: var EventEmitter, event: string,
+         fn: proc(e: EventArgs) {.nimcall.}) =
+  if not hasKey(emitter.events, event):
+    var list: DoublyLinkedList[proc(e: EventArgs) {.nimcall.}]
+    add(emitter.events, event, list) #if not, add it.
+  append(emitter.events[event], fn)
+
+proc initEmitter(emitter: var EventEmitter) =
+  emitter.events = initTable[string,
+    DoublyLinkedList[proc(e: EventArgs) {.nimcall.}]]()
+
+var
+  ee: EventEmitter
+  args: EventArgs
+initEmitter(ee)
+ee.on("print", proc(e: EventArgs) = echo("pie"))
+ee.emit("print", args)
diff --git a/tests/misc/tfib.nim b/tests/misc/tfib.nim
new file mode 100644
index 000000000..34fe0dcf9
--- /dev/null
+++ b/tests/misc/tfib.nim
@@ -0,0 +1,11 @@
+
+iterator fibonacci(): int =
+  var a = 0
+  var b = 1
+  while true:
+    yield a
+    var c = b
+    b = a
+    a = a + c
+
+
diff --git a/tests/misc/tfilter.nim b/tests/misc/tfilter.nim
new file mode 100644
index 000000000..5846d0efb
--- /dev/null
+++ b/tests/misc/tfilter.nim
@@ -0,0 +1,41 @@
+discard """
+  output: "02468101214161820\n15"
+"""
+
+proc filter[T](list: seq[T], f: proc (item: T): bool {.closure.}): seq[T] =
+  result = @[]
+  for i in items(list):
+    if f(i):
+      result.add(i)
+
+let nums = @[0, 1, 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
+
+when true:
+  let nums2 = filter(nums,
+               (proc (item: int): bool =
+                 result = (item mod 2) == 0)
+               )
+
+proc outer =
+  # lets use a proper closure this time:
+  var modulo = 2
+  let nums2 = filter(nums,
+               (proc (item: int): bool = result = (item mod modulo) == 0)
+               )
+
+  for n in nums2: stdout.write(n)
+  stdout.write("\n")
+
+outer()
+
+import math
+proc compose[T](f1, f2: proc (x: T): T {.closure.}): proc (x: T): T {.closure.} =
+  result = (proc (x: T): T =
+             result = f1(f2(x)))
+
+
+proc add5(x: int): int = result = x + 5
+
+var test = compose(add5, add5)
+echo test(5)
+
diff --git a/tests/misc/thallo.nim b/tests/misc/thallo.nim
new file mode 100644
index 000000000..8dac56023
--- /dev/null
+++ b/tests/misc/thallo.nim
@@ -0,0 +1,87 @@
+discard """
+action: compile
+"""
+
+# noted this seems to be an old test file designed for manual testing.
+
+import
+  os, strutils, macros
+
+type
+  TMyEnum = enum
+    meA, meB, meC, meD
+
+when true:
+  {.hint: "this is the main file".}
+
+proc fac[T](x: T): T =
+  # test recursive generic procs
+  if x <= 1: return 1
+  else: return x.`*`(fac(x-1))
+
+macro macrotest(n: varargs[untyped]): untyped =
+  let n = callsite()
+  expectKind(n, nnkCall)
+  expectMinLen(n, 2)
+  result = newNimNode(nnkStmtList, n)
+  for i in 2..n.len-1:
+    result.add(newCall("write", n[1], n[i]))
+  result.add(newCall("writeLine", n[1], newStrLitNode("")))
+
+macro debug(n: untyped): untyped =
+  let n = callsite()
+  result = newNimNode(nnkStmtList, n)
+  for i in 1..n.len-1:
+    result.add(newCall("write", newIdentNode("stdout"), toStrLit(n[i])))
+    result.add(newCall("write", newIdentNode("stdout"), newStrLitNode(": ")))
+    result.add(newCall("writeLine", newIdentNode("stdout"), n[i]))
+
+macrotest(stdout, "finally", 4, 5, "variable", "argument lists")
+macrotest(stdout)
+
+#GC_disable()
+
+echo("This was compiled by Nim version " & system.NimVersion)
+writeLine(stdout, "Hello", " World", "!")
+
+echo(["a", "b", "c", "d"].len)
+for x in items(["What's", "your", "name", "?", ]):
+  echo(x)
+var `name` = readLine(stdin)
+echo("Hi " & thallo.name & "!\n")
+debug(name)
+
+var testseq: seq[string] = @[
+  "a", "b", "c", "d", "e"
+]
+echo(repr(testseq))
+
+var dummy = "hello"
+echo(substr(dummy, 2, 3))
+
+echo($meC)
+
+# test tuples:
+for x, y in items([(1, 2), (3, 4), (6, 1), (5, 2)]):
+  echo x
+  echo y
+
+proc simpleConst(): int = return 34
+
+# test constant evaluation:
+const
+  constEval3 = simpleConst()
+  constEval = "abc".contains('b')
+  constEval2 = fac(7)
+
+echo(constEval3)
+echo(constEval)
+echo(constEval2)
+echo(1.`+`(2))
+
+for i in 2..6:
+  for j in countdown(i+4, 2):
+    echo(fac(i * j))
+
+when true:
+  {.hint: "this is the main file".}
diff --git a/tests/misc/theaproots.nim b/tests/misc/theaproots.nim
new file mode 100644
index 000000000..2dd345254
--- /dev/null
+++ b/tests/misc/theaproots.nim
@@ -0,0 +1,75 @@
+discard """
+action: compile
+"""
+
+type
+  Bar = object
+    x: int
+
+  Foo = object
+    rheap: ref Bar
+    rmaybe: ref Bar
+    rstack: ref Bar
+    list: seq[ref Bar]
+    listarr: array[0..5, ref Bar]
+    nestedtup: Tup
+    inner: TInner
+    inref: ref TInner
+
+  TInner = object
+    inref: ref Bar
+
+  Tup = tuple
+    tupbar: ref Bar
+    inner: TInner
+
+proc acc(x: var Foo): var ref Bar =
+  result = x.rheap
+
+proc test(maybeFoo: var Foo,
+          maybeSeq: var seq[ref Bar],
+          bars: var openArray[ref Bar],
+          maybeTup: var Tup) =
+  var bb: ref Bar
+  maybeFoo.rmaybe = bb
+  maybeFoo.list[3] = bb
+  maybeFoo.listarr[3] = bb
+  acc(maybeFoo) = bb
+
+  var localFoo: Foo
+  localFoo.rstack = bb
+  localFoo.list[3] = bb
+  localFoo.listarr[3] = bb
+  acc(localFoo) = bb
+
+  var heapFoo: ref Foo
+  heapFoo.rheap = bb
+  heapFoo.list[3] = bb
+  heapFoo.listarr[3] = bb
+  acc(heapFoo[]) = bb
+
+  heapFoo.nestedtup.tupbar = bb
+  heapFoo.nestedtup.inner.inref = bb
+  heapFoo.inner.inref = bb
+  heapFoo.inref.inref = bb
+
+  var locseq: seq[ref Bar]
+  locseq[3] = bb
+
+  var locarr: array[0..4, ref Bar]
+  locarr[3] = bb
+
+  maybeSeq[3] = bb
+
+  bars[3] = bb
+
+  maybeTup[0] = bb
+
+var
+  ff: ref Foo
+  tt: Tup
+  gseq: seq[ref Bar]
+
+new(ff)
+
+test(ff[], gseq, gseq, tt)
diff --git a/tests/misc/tinit.nim b/tests/misc/tinit.nim
new file mode 100644
index 000000000..207cb17e8
--- /dev/null
+++ b/tests/misc/tinit.nim
@@ -0,0 +1,9 @@
+discard """
+  output: "Hello from module! Hello from main module!"
+"""
+# Test the new init section in modules
+
+import minit
+
+write(stdout, "Hello from main module!\n")
+#OUT Hello from module! Hello from main module!
diff --git a/tests/misc/tinout.nim b/tests/misc/tinout.nim
new file mode 100644
index 000000000..bae0fb185
--- /dev/null
+++ b/tests/misc/tinout.nim
@@ -0,0 +1,14 @@
+discard """
+  errormsg: "type mismatch: got <int literal(3)>"
+  file: "tinout.nim"
+  line: 12
+"""
+# Test in out checking for parameters
+
+proc abc(x: var int) =
+    x = 0
+
+proc b() =
+    abc(3) #ERROR
+
+b()
diff --git a/tests/misc/tinvalidnewseq.nim b/tests/misc/tinvalidnewseq.nim
new file mode 100644
index 000000000..7a95db020
--- /dev/null
+++ b/tests/misc/tinvalidnewseq.nim
@@ -0,0 +1,24 @@
+discard """
+  errormsg: "type mismatch: got <array[0..6, string], int literal(7)>"
+  file: "tinvalidnewseq.nim"
+  line: 15
+"""
+import re, strutils
+
+type
+  TURL = tuple[protocol, subdomain, domain, port: string, path: seq[string]]
+
+proc parseURL(url: string): TURL =
+  #([a-zA-Z]+://)?(\w+?\.)?(\w+)(\.\w+)(:[0-9]+)?(/.+)?
+  var pattern: string = r"([a-zA-Z]+://)?(\w+?\.)?(\w+)(\.\w+)(:[0-9]+)?(/.+)?"
+  var m: array[0..6, string] #Array with the matches
+  newSeq(m, 7) #ERROR
+  discard re.match(url, re(pattern), m)
+
+  result = (protocol: m[1], subdomain: m[2], domain: m[3] & m[4],
+            port: m[5], path: m[6].split('/'))
+
+var r: TUrl
+
+r = parseUrl(r"http://google.com/search?var=bleahdhsad")
+echo(r.domain)
diff --git a/tests/misc/tissue710.nim b/tests/misc/tissue710.nim
new file mode 100644
index 000000000..ec125b840
--- /dev/null
+++ b/tests/misc/tissue710.nim
@@ -0,0 +1,10 @@
+discard """
+  errorMsg: "attempting to call routine: '||'"
+  file: "tissue710.nim"
+  line: 8
+"""
+var sum = 0
+for x in 3..1000:
+  if (x mod 3 == 0) || (x mod 5 == 0):
+    sum += x
+echo(sum)
diff --git a/tests/misc/tjoinable.nim b/tests/misc/tjoinable.nim
new file mode 100644
index 000000000..f23fca0d4
--- /dev/null
+++ b/tests/misc/tjoinable.nim
@@ -0,0 +1,3 @@
+# checks that megatest allows duplicate names, see also `tests/testament/tjoinable.nim`
+doAssert defined(testing)
+doAssert defined(nimMegatest)
diff --git a/tests/misc/tlastmod.nim b/tests/misc/tlastmod.nim
new file mode 100644
index 000000000..1cc1d4bd9
--- /dev/null
+++ b/tests/misc/tlastmod.nim
@@ -0,0 +1,25 @@
+discard """
+outputsub: "is newer than"
+"""
+# test the new LastModificationTime() proc
+
+let
+  file1 = "tests/testdata/data.csv"
+  file2 = "tests/testdata/doc1.xml"
+
+import
+  os, times, strutils
+
+proc main() =
+  var
+    a, b: Time
+  a = getLastModificationTime(file1)
+  b = getLastModificationTime(file2)
+  writeLine(stdout, $a)
+  writeLine(stdout, $b)
+  if a < b:
+    write(stdout, "$2 is newer than $1\n" % [file1, file2])
+  else:
+    write(stdout, "$1 is newer than $2\n" % [file1, file2])
+
+main()
diff --git a/tests/misc/tloops.nim b/tests/misc/tloops.nim
new file mode 100644
index 000000000..61e0baf10
--- /dev/null
+++ b/tests/misc/tloops.nim
@@ -0,0 +1,93 @@
+discard """
+output: '''
+Hello!(x: 1, y: 2, z: 3)
+(x: 1.0, y: 2.0)
+'''
+"""
+
+# Test nested loops and some other things
+
+proc andTest() =
+  var a = 0 == 5 and 6 == 6
+
+proc incx(x: var int) = # is built-in proc
+  x = x + 1
+
+proc decx(x: var int) =
+  x = x - 1
+
+proc First(y: var int) =
+  var x: int
+  i_ncx(x)
+  if x == 10:
+    y = 0
+  else:
+    if x == 0:
+      incx(x)
+    else:
+      x=11
+
+proc TestLoops() =
+  var i, j: int
+  while i >= 0:
+    if i mod 3 == 0:
+      break
+    i = i + 1
+    while j == 13:
+      j = 13
+      break
+    break
+
+  while true:
+    break
+
+
+proc Foo(n: int): int =
+    var
+        a, old: int
+        b, c: bool
+    F_irst(a)
+    if a == 10:
+        a = 30
+    elif a == 11:
+        a = 22
+    elif a == 12:
+        a = 23
+    elif b:
+        old = 12
+    else:
+        a = 40
+
+    #
+    b = false or 2 == 0 and 3 == 9
+    a = 0 + 3 * 5 + 6 + 7 + +8 # 36
+    while b:
+        a = a + 3
+    a = a + 5
+    write(stdout, "Hello!")
+
+
+# We should come till here :-)
+discard Foo(345)
+
+# test the new type symbol lookup feature:
+
+type
+  MyType[T] = tuple[
+    x, y, z: T]
+  MyType2 = tuple[x, y: float]
+
+proc main[T]() =
+  var myType: MyType[T]
+  var b: MyType[T]
+  b = (1, 2, 3)
+  myType = b
+  echo myType
+
+  var myType2: MyType2
+  var c: MyType2
+  c = (1.0, 2.0)
+  myType2 = c
+  echo myType2
+
+main[int]()
diff --git a/tests/misc/tmemoization.nim b/tests/misc/tmemoization.nim
new file mode 100644
index 000000000..c65692608
--- /dev/null
+++ b/tests/misc/tmemoization.nim
@@ -0,0 +1,17 @@
+discard """
+  nimout:    "test 1\ntest 2\ntest 3"
+  output: "TEST 1\nTEST 2\nTEST 3"
+"""
+
+import strutils
+
+proc foo(s: static[string]): string =
+  static: echo s
+
+  const R = s.toUpperAscii
+  return R
+
+echo foo("test 1")
+echo foo("test 2")
+echo foo("test " & $3)
+
diff --git a/tests/misc/tmissingnilcheck.nim b/tests/misc/tmissingnilcheck.nim
new file mode 100644
index 000000000..461fb18f4
--- /dev/null
+++ b/tests/misc/tmissingnilcheck.nim
@@ -0,0 +1,20 @@
+discard """
+  disabled: true
+"""
+
+type
+  PFutureBase = ref object
+    callback: proc () {.closure.}
+
+proc newConnection =
+  iterator newConnectionIter(): PFutureBase {.closure.} =
+    discard
+  var newConnectionIterVar = newConnectionIter
+  var first = newConnectionIterVar()
+
+  proc cb {.closure.} =
+    discard
+
+  first.callback = cb
+
+newConnection()
diff --git a/tests/misc/tmodulea.nim b/tests/misc/tmodulea.nim
new file mode 100644
index 000000000..5aeb1824b
--- /dev/null
+++ b/tests/misc/tmodulea.nim
@@ -0,0 +1,3 @@
+from modulea import modulea
+
+#bug #6731
diff --git a/tests/misc/tnoforward.nim b/tests/misc/tnoforward.nim
new file mode 100644
index 000000000..b6a71897a
--- /dev/null
+++ b/tests/misc/tnoforward.nim
@@ -0,0 +1,15 @@
+discard """
+  output: "10"
+"""
+
+# {. noforward: on .}
+{.experimental: "codeReordering".}
+
+proc foo(x: int) =
+  bar x
+
+proc bar(x: int) =
+  echo x
+
+foo(10)
+
diff --git a/tests/misc/tnolen.nim b/tests/misc/tnolen.nim
new file mode 100644
index 000000000..e0e8025d4
--- /dev/null
+++ b/tests/misc/tnolen.nim
@@ -0,0 +1,8 @@
+discard """
+  errormsg: "type mismatch: got <int literal(3)>"
+  line: 8
+"""
+
+# please finally disallow Len(3)
+
+echo len(3)
diff --git a/tests/misc/tparedef.nim b/tests/misc/tparedef.nim
new file mode 100644
index 000000000..83c2651ff
--- /dev/null
+++ b/tests/misc/tparedef.nim
@@ -0,0 +1,4 @@
+# This test is now superfluous:
+
+proc a(a: int) =
+  return
diff --git a/tests/misc/tparsecombnum.nim b/tests/misc/tparsecombnum.nim
new file mode 100644
index 000000000..6fe539813
--- /dev/null
+++ b/tests/misc/tparsecombnum.nim
@@ -0,0 +1,55 @@
+import parsecomb
+
+discard """
+  output: "-289096"
+"""
+
+type Num = int
+
+# forward stuff
+var exp3: Parser[string, Num]
+var exp = lazy(proc(): Parser[string, Num] = exp3)
+
+var digit = (proc(): Parser[string, Num] =
+  result = tok("0").then(unit[string, Num](Num(0)))
+  for n in 1..9:
+    result = result + tok($n).then(unit[string, Num](Num(n)))
+)()
+
+var num = repeat1(digit).map(proc(ds: seq[Num]): Num =
+  result = 0
+  for d in ds:
+    result = result*10 + d)
+
+type Op = proc(a, b: Num): Num
+
+var plusOp = tok("+").then(unit[string, Op](proc(a, b: Num): Num = a + b))
+var minusOp = tok("-").then(unit[string, Op](proc(a, b: Num): Num = a - b))
+var timesOp = tok("*").then(unit[string, Op](proc(a, b: Num): Num = a*b))
+var divideOp = tok("/").then(unit[string, Op](proc(a, b: Num): Num = a div b))
+
+var paren = (tok("(") * exp * tok(")")).map(proc(ler: ((string, Num), string)): Num =
+  var (le, r) = ler
+  var (l, e) = le
+  e)
+
+proc foldOp(a: Num, ob: (Op, Num)): Num =
+  var (o, b) = ob
+  o(a, b)
+
+var exp0 = paren + num
+var exp1 = exp0.leftRec((timesOp + divideOp)*exp0, foldOp)
+var exp2 = exp1.leftRec((plusOp + minusOp)*exp1, foldOp)
+exp3 = exp2
+
+proc strsplit(s: string): seq[string] =
+  result = @[]
+  for i in 0 .. s.len - 1:
+    result.add($s[i])
+
+var r = exp.run("523-(1243+411/744*1642/1323)*233".strsplit)
+case r.kind:
+of rkSuccess:
+  echo r.output
+of rkFailure:
+  echo "failed"
diff --git a/tests/misc/tparseopt.nim b/tests/misc/tparseopt.nim
new file mode 100644
index 000000000..47be05bac
--- /dev/null
+++ b/tests/misc/tparseopt.nim
@@ -0,0 +1,156 @@
+discard """
+  output: '''
+parseopt
+first round
+kind: cmdLongOption	key:val  --  left:
+second round
+kind: cmdLongOption	key:val  --  left:
+kind: cmdLongOption	key:val  --  debug:3
+kind: cmdShortOption	key:val  --  l:4
+kind: cmdShortOption	key:val  --  r:2
+cmdLongOption foo
+cmdLongOption path
+parseoptNoVal
+kind: cmdLongOption	key:val  --  left:
+kind: cmdLongOption	key:val  --  debug:3
+kind: cmdShortOption	key:val  --  l:
+kind: cmdShortOption	key:val  --  r:2
+kind: cmdLongOption	key:val  --  debug:2
+kind: cmdLongOption	key:val  --  debug:1
+kind: cmdShortOption	key:val  --  r:1
+kind: cmdShortOption	key:val  --  r:0
+kind: cmdShortOption	key:val  --  l:
+kind: cmdShortOption	key:val  --  r:4
+kind: cmdLongOption	key:val  --  debug:
+cmdShortOption key: v value: ''
+cmdArgument key: ABC value: ''
+cmdShortOption key: v value: 'ABC'
+cmdShortOption key: v value: ''
+cmdArgument key: ABC value: ''
+cmdShortOption key: v value: ''
+cmdArgument key: ABC value: ''
+cmdShortOption key: j value: '4'
+cmdArgument key: ok value: ''
+'''
+joinable: false
+"""
+
+when defined(testament_tparseopt):
+  import os
+  proc main() =
+    let args = commandLineParams()
+    echo args
+    for i, ai in args:
+      echo "arg ", i, " ai.len:", ai.len, " :{", ai, "}"
+  main()
+else:
+  from parseopt import nil
+
+  block:
+    echo "parseopt"
+    for kind, key, val in parseopt.getopt():
+      echo "kind: ", kind, "\tkey:val  --  ", key, ":", val
+
+    # pass custom cmdline arguments
+    echo "first round"
+    var argv = "--left --debug:3 -l=4 -r:2"
+    var p = parseopt.initOptParser(argv)
+    for kind, key, val in parseopt.getopt(p):
+      echo "kind: ", kind, "\tkey:val  --  ", key, ":", val
+      break
+    # reset getopt iterator and check arguments are returned correctly.
+    echo "second round"
+    for kind, key, val in parseopt.getopt(p):
+      echo "kind: ", kind, "\tkey:val  --  ", key, ":", val
+
+    # bug #9619
+    var x = parseopt.initOptParser(@["--foo:", "--path"],
+        allowWhitespaceAfterColon = false)
+    for kind, key, val in parseopt.getopt(x):
+      echo kind, " ", key
+
+  block:
+    echo "parseoptNoVal"
+    # test NoVal mode with custom cmdline arguments
+    var argv = "--left --debug:3 -l -r:2 --debug 2 --debug=1 -r1 -r=0 -lr4 --debug:"
+    var p = parseopt.initOptParser(argv,
+                                    shortNoVal = {'l'}, longNoVal = @["left"])
+    for kind, key, val in parseopt.getopt(p):
+      echo "kind: ", kind, "\tkey:val  --  ", key, ":", val
+
+  import osproc, os, strutils
+  from stdtest/specialpaths import buildDir
+  import stdtest/unittest_light
+
+  block: # fix #9951
+    template runTest(parseoptCustom) =
+      var p = parseoptCustom.initOptParser(@["echo \"quoted\""])
+      let expected = when defined(windows):
+        """"echo \"quoted\"""""
+      else:
+        """'echo "quoted"'"""
+      assertEquals parseoptCustom.cmdLineRest(p), expected
+
+      doAssert "a5'b" == "a5\'b"
+
+      let args = @["a1b", "a2 b", "", "a4\"b", "a5'b", r"a6\b", "a7\'b"]
+      var p2 = parseoptCustom.initOptParser(args)
+      let expected2 = when defined(windows):
+        """a1b "a2 b" "" a4\"b a5'b a6\b a7'b"""
+      else:
+        """a1b 'a2 b' '' 'a4"b' 'a5'"'"'b' 'a6\b' 'a7'"'"'b'"""
+      doAssert "a5'b" == "a5\'b"
+      assertEquals parseoptCustom.cmdLineRest(p2), expected2
+    runTest(parseopt)
+
+  block: # fix #9842
+    let exe = buildDir / "D20190112T145450".addFileExt(ExeExt)
+    defer:
+      when not defined(windows):
+        # workaround #10359 ; innocuous to skip since we're saving under `buildDir`
+        removeFile exe
+    let args = @["a1b", "a2 b", "", "a4\"b", "a5'b", r"a6\b", "a7\'b"]
+    let cmd = "$# c -r --verbosity:0 -o:$# -d:testament_tparseopt $# $#" %
+      [getCurrentCompilerExe(), exe, currentSourcePath(),
+          args.quoteShellCommand]
+    var ret = execCmdEx(cmd, options = {})
+    if ret.exitCode != 0:
+      # before bug fix, running cmd would show:
+      # sh: -c: line 0: unexpected EOF while looking for matching `"'\n
+      echo "exitCode: ", ret.exitCode, " cmd:", cmd
+      doAssert false
+    stripLineEnd(ret.output)
+    assertEquals ret.output,
+      """
+@["a1b", "a2 b", "", "a4\"b", "a5\'b", "a6\\b", "a7\'b"]
+arg 0 ai.len:3 :{a1b}
+arg 1 ai.len:4 :{a2 b}
+arg 2 ai.len:0 :{}
+arg 3 ai.len:4 :{a4"b}
+arg 4 ai.len:4 :{a5'b}
+arg 5 ai.len:4 :{a6\b}
+arg 6 ai.len:4 :{a7'b}"""
+
+
+
+  block:
+    let args = @["-v", "ABC"]
+    var p = parseopt.initOptParser(args, shortnoVal = {'n'}, longnoVal = @["novalue"])
+    for kind, key, val in parseopt.getopt(p):
+      echo kind," key: ", key, " value: '", val, "'"
+
+    var r = parseopt.initOptParser(@["-v ABC"], shortnoVal = {'n'}, longnoVal = @["novalue"])
+    for kind, key, val in parseopt.getopt(r):
+      echo kind," key: ", key, " value: '", val, "'"
+
+    var s = parseopt.initOptParser("-v ABC", shortnoVal = {'v'}, longnoVal = @["novalue"])
+    for kind, key, val in parseopt.getopt(s):
+      echo kind," key: ", key, " value: '", val, "'"
+
+    var m = parseopt.initOptParser("-v ABC", shortnoVal = {'n'}, longnoVal = @["novalue"])
+    for kind, key, val in parseopt.getopt(m):
+      echo kind," key: ", key, " value: '", val, "'"
+
+    var n = parseopt.initOptParser("-j4 ok", shortnoVal = {'n'}, longnoVal = @["novalue"])
+    for kind, key, val in parseopt.getopt(n):
+      echo kind," key: ", key, " value: '", val, "'"
diff --git a/tests/misc/tpos.nim b/tests/misc/tpos.nim
new file mode 100644
index 000000000..f7607d643
--- /dev/null
+++ b/tests/misc/tpos.nim
@@ -0,0 +1,33 @@
+discard """
+  output: "6"
+"""
+# test this particular function
+
+proc mypos(sub, s: string, start: int = 0): int =
+  var
+    i, j, M, N: int
+  M = sub.len
+  N = s.len
+  i = start
+  j = 0
+  if i >= N:
+    result = -1
+  else:
+    while true:
+      if s[i] == sub[j]:
+        inc(i)
+        inc(j)
+      else:
+        i = i - j + 1
+        j = 0
+      if (j >= M) or (i >= N): break
+    if j >= M:
+      result = i - M
+    else:
+      result = -1
+
+var sub = "hello"
+var s = "world hello"
+write(stdout, mypos(sub, s))
+write stdout, "\n"
+#OUT 6
diff --git a/tests/misc/tprep.nim b/tests/misc/tprep.nim
new file mode 100644
index 000000000..45f25b790
--- /dev/null
+++ b/tests/misc/tprep.nim
@@ -0,0 +1,38 @@
+discard """
+nimout: '''
+tprep.nim(25, 9) Hint: Case 2 [User]
+tprep.nim(27, 11) Hint: Case 2.3 [User]
+'''
+outputsub: ""
+"""
+
+# Test the features that used to belong to the preprocessor
+
+import
+  times
+
+#{.warning: "This is only a test warning!".}
+
+const
+  case2 = true
+  case3 = true
+
+when defined(case1):
+  {.hint: "Case 1".}
+  when case3:
+    {.hint: "Case 1.3".}
+elif case2:
+  {.hint: "Case 2".}
+  when case3:
+    {.hint: "Case 2.3".}
+elif case3:
+  {.hint: "Case 3".}
+else:
+  {.hint: "unknown case".}
+
+var
+  s: string
+write(stdout, "compiled at " & system.CompileDate &
+              " " & CompileTime & "\n")
+echo getDateStr()
+echo getClockStr()
diff --git a/tests/misc/tquicksort.nim b/tests/misc/tquicksort.nim
new file mode 100644
index 000000000..017c73fbc
--- /dev/null
+++ b/tests/misc/tquicksort.nim
@@ -0,0 +1,23 @@
+proc QuickSort(list: seq[int]): seq[int] =
+    if len(list) == 0:
+        return @[]
+    var pivot = list[0]
+    var left: seq[int] = @[]
+    var right: seq[int] = @[]
+    for i in low(list)..high(list):
+        if list[i] < pivot:
+            left.add(list[i])
+        elif list[i] > pivot:
+            right.add(list[i])
+    result = QuickSort(left) &
+      pivot &
+      QuickSort(right)
+
+proc echoSeq(a: seq[int]) =
+    for i in low(a)..high(a):
+        echo(a[i])
+
+let list = QuickSort(@[89,23,15,23,56,123,356,12,7,1,6,2,9,4,3])
+let expected = @[1, 2, 3, 4, 6, 7, 9, 12, 15, 23, 56, 89, 123, 356]
+
+doAssert list == expected
diff --git a/tests/misc/tradix.nim b/tests/misc/tradix.nim
new file mode 100644
index 000000000..f4fb56849
--- /dev/null
+++ b/tests/misc/tradix.nim
@@ -0,0 +1,254 @@
+discard """
+output: '''
+start tradix.nim
+false
+false
+false
+false
+false
+false
+false
+false
+false
+false
+128
+1
+2
+3
+4
+255
+17
+45
+19000
+4294967288
+'''
+"""
+
+# implements and tests an efficient radix tree
+
+## another method to store an efficient array of pointers:
+## We use a radix tree with node compression.
+## There are two node kinds:
+
+echo "start tradix.nim"
+
+const BitsPerUnit = 8*sizeof(int)
+
+type
+  TRadixNodeKind = enum rnLinear, rnFull, rnLeafBits, rnLeafLinear
+  PRadixNode = ptr TRadixNode
+  TRadixNode {.pure, inheritable.} = object
+    kind: TRadixNodeKind
+  TRadixNodeLinear = object of TRadixNode
+    len: uint8
+    keys: array[0..31, uint8]
+    vals: array[0..31, PRadixNode]
+
+  TRadixNodeFull = object of TRadixNode
+    b: array[0..255, PRadixNode]
+  TRadixNodeLeafBits = object of TRadixNode
+    b: array[0..7, int]
+  TRadixNodeLeafLinear = object of TRadixNode
+    len: uint8
+    keys: array[0..31, uint8]
+
+var
+  root: PRadixNode
+
+proc searchInner(r: PRadixNode, a: int): PRadixNode =
+  case r.kind
+  of rnLinear:
+    var x = cast[ptr TRadixNodeLinear](r)
+    for i in 0..int(x.len)-1:
+      if int(x.keys[i]) == a: return x.vals[i]
+  of rnFull:
+    var x = cast[ptr TRadixNodeFull](r)
+    return x.b[a]
+  else: assert(false)
+
+proc testBit(w, i: int): bool {.inline.} =
+  result = (w and (1 shl (i %% BitsPerUnit))) != 0
+
+proc setBit(w: var int, i: int) {.inline.} =
+  w = w or (1 shl (i %% BitsPerUnit))
+
+proc resetBit(w: var int, i: int) {.inline.} =
+  w = w and not (1 shl (i %% BitsPerUnit))
+
+proc testOrSetBit(w: var int, i: int): bool {.inline.} =
+  var x = (1 shl (i %% BitsPerUnit))
+  if (w and x) != 0: return true
+  w = w or x
+
+proc searchLeaf(r: PRadixNode, a: int): bool =
+  case r.kind
+  of rnLeafBits:
+    var x = cast[ptr TRadixNodeLeafBits](r)
+    return testBit(x.b[a /% BitsPerUnit], a)
+  of rnLeafLinear:
+    var x = cast[ptr TRadixNodeLeafLinear](r)
+    for i in 0..int(x.len)-1:
+      if int(x.keys[i]) == a: return true
+  else: assert(false)
+
+proc exclLeaf(r: PRadixNode, a: int) =
+  case r.kind
+  of rnLeafBits:
+    var x = cast[ptr TRadixNodeLeafBits](r)
+    resetBit(x.b[a /% BitsPerUnit], a)
+  of rnLeafLinear:
+    var x = cast[ptr TRadixNodeLeafLinear](r)
+    var L = int(x.len)
+    for i in 0..L-1:
+      if int(x.keys[i]) == a:
+        x.keys[i] = x.keys[L-1]
+        dec(x.len)
+        return
+  else: assert(false)
+
+proc contains*(r: PRadixNode, a: ByteAddress): bool =
+  if r == nil: return false
+  var x = searchInner(r, a shr 24 and 0xff)
+  if x == nil: return false
+  x = searchInner(x, a shr 16 and 0xff)
+  if x == nil: return false
+  x = searchInner(x, a shr 8 and 0xff)
+  if x == nil: return false
+  return searchLeaf(x, a and 0xff)
+
+proc excl*(r: PRadixNode, a: ByteAddress): bool =
+  if r == nil: return false
+  var x = searchInner(r, a shr 24 and 0xff)
+  if x == nil: return false
+  x = searchInner(x, a shr 16 and 0xff)
+  if x == nil: return false
+  x = searchInner(x, a shr 8 and 0xff)
+  if x == nil: return false
+  exclLeaf(x, a and 0xff)
+
+proc addLeaf(r: var PRadixNode, a: int): bool =
+  if r == nil:
+    # a linear node:
+    var x = cast[ptr TRadixNodeLinear](alloc0(sizeof(TRadixNodeLinear)))
+    x.kind = rnLeafLinear
+    x.len = 1'u8
+    x.keys[0] = uint8(a)
+    r = x
+    return false # not already in set
+  case r.kind
+  of rnLeafBits:
+    var x = cast[ptr TRadixNodeLeafBits](r)
+    return testOrSetBit(x.b[a /% BitsPerUnit], a)
+  of rnLeafLinear:
+    var x = cast[ptr TRadixNodeLeafLinear](r)
+    var L = int(x.len)
+    for i in 0..L-1:
+      if int(x.keys[i]) == a: return true
+    if L <= high(x.keys):
+      x.keys[L] = uint8(a)
+      inc(x.len)
+    else:
+      # transform into a full node:
+      var y = cast[ptr TRadixNodeLeafBits](alloc0(sizeof(TRadixNodeLeafBits)))
+      y.kind = rnLeafBits
+      for i in 0..int(x.len)-1:
+        var u = int(x.keys[i])
+        setBit(y.b[u /% BitsPerUnit], u)
+      setBit(y.b[a /% BitsPerUnit], a)
+      dealloc(r)
+      r = y
+  else: assert(false)
+
+proc addInner(r: var PRadixNode, a: int, d: int): bool =
+  if d == 0:
+    return addLeaf(r, a and 0xff)
+  var k = a shr d and 0xff
+  if r == nil:
+    # a linear node:
+    var x = cast[ptr TRadixNodeLinear](alloc0(sizeof(TRadixNodeLinear)))
+    x.kind = rnLinear
+    x.len = 1'u8
+    x.keys[0] = uint8(k)
+    r = x
+    return addInner(x.vals[0], a, d-8)
+  case r.kind
+  of rnLinear:
+    var x = cast[ptr TRadixNodeLinear](r)
+    var L = int(x.len)
+    for i in 0..L-1:
+      if int(x.keys[i]) == k: # already exists
+        return addInner(x.vals[i], a, d-8)
+    if L <= high(x.keys):
+      x.keys[L] = uint8(k)
+      inc(x.len)
+      return addInner(x.vals[L], a, d-8)
+    else:
+      # transform into a full node:
+      var y = cast[ptr TRadixNodeFull](alloc0(sizeof(TRadixNodeFull)))
+      y.kind = rnFull
+      for i in 0..L-1: y.b[int(x.keys[i])] = x.vals[i]
+      dealloc(r)
+      r = y
+      return addInner(y.b[k], a, d-8)
+  of rnFull:
+    var x = cast[ptr TRadixNodeFull](r)
+    return addInner(x.b[k], a, d-8)
+  else: assert(false)
+
+proc incl*(r: var PRadixNode, a: ByteAddress) {.inline.} =
+  discard addInner(r, a, 24)
+
+proc testOrIncl*(r: var PRadixNode, a: ByteAddress): bool {.inline.} =
+  return addInner(r, a, 24)
+
+iterator innerElements(r: PRadixNode): tuple[prefix: int, n: PRadixNode] =
+  if r != nil:
+    case r.kind
+    of rnFull:
+      var r = cast[ptr TRadixNodeFull](r)
+      for i in 0..high(r.b):
+        if r.b[i] != nil:
+          yield (i, r.b[i])
+    of rnLinear:
+      var r = cast[ptr TRadixNodeLinear](r)
+      for i in 0..int(r.len)-1:
+        yield (int(r.keys[i]), r.vals[i])
+    else: assert(false)
+
+iterator leafElements(r: PRadixNode): int =
+  if r != nil:
+    case r.kind
+    of rnLeafBits:
+      var r = cast[ptr TRadixNodeLeafBits](r)
+      # iterate over any bit:
+      for i in 0..high(r.b):
+        if r.b[i] != 0: # test all bits for zero
+          for j in 0..BitsPerUnit-1:
+            if testBit(r.b[i], j):
+              yield i*BitsPerUnit+j
+    of rnLeafLinear:
+      var r = cast[ptr TRadixNodeLeafLinear](r)
+      for i in 0..int(r.len)-1:
+        yield int(r.keys[i])
+    else: assert(false)
+
+iterator elements*(r: PRadixNode): ByteAddress {.inline.} =
+  for p1, n1 in innerElements(r):
+    for p2, n2 in innerElements(n1):
+      for p3, n3 in innerElements(n2):
+        for p4 in leafElements(n3):
+          yield p1 shl 24 or p2 shl 16 or p3 shl 8 or p4
+
+proc main() =
+  const
+    numbers = [128, 1, 2, 3, 4, 255, 17, -8, 45, 19_000]
+  var
+    r: PRadixNode = nil
+  for x in items(numbers):
+    echo testOrIncl(r, x)
+  for x in elements(r):
+    # ByteAddress being defined as a signed integer cases trouble
+    # exactly here
+    echo(cast[uint](x))
+
+main()
diff --git a/tests/misc/trfc405.nim b/tests/misc/trfc405.nim
new file mode 100644
index 000000000..0828879ee
--- /dev/null
+++ b/tests/misc/trfc405.nim
@@ -0,0 +1,112 @@
+
+{.experimental: "flexibleOptionalParams".}
+
+# https://github.com/nim-lang/RFCs/issues/405
+
+template main =
+  template fn1(a = 1, b = 2, body): auto = (a, b, astToStr(body))
+  let a1 = fn1(10, 20):
+    foo
+  doAssert a1 == (10, 20, "\nfoo")
+
+  template fn2(a = 1, b = 2, body): auto = (a, b, astToStr(body))
+  let a2 = fn2(a = 10): foo
+  doAssert a2 == (10, 2, "\nfoo")
+  let a2b = fn2(b = 20): foo
+  doAssert a2b == (1, 20, "\nfoo")
+
+  template fn3(x: int, a = 1, b = 2, body): auto = (a, b, astToStr(body))
+  let a3 = fn3(3, 10, 20): foo
+  doAssert a3 == (10, 20, "\nfoo")
+  let a3b = fn3(3, a = 10): foo
+  doAssert a3b == (10, 2, "\nfoo")
+
+  template fn4(x: int, y: int, body): auto = (x, y, astToStr(body))
+  let a4 = fn4(1, 2): foo
+  doAssert a4 == (1, 2, "\nfoo")
+
+  template fn5(x = 1, y = 2, body: untyped = 3): auto = (x, y, astToStr(body))
+  doAssert compiles(fn5(1, 2, foo))
+  doAssert not compiles(fn5(1, foo))
+
+  block:
+    # with an overload
+    var witness = 0
+    template fn6() = discard
+    template fn6(procname: string, body: untyped): untyped = witness.inc
+    fn6("abc"): discard
+    assert witness == 1
+
+  block:
+    # with overloads
+    var witness = 0
+    template fn6() = discard
+    template fn6(a: int) = discard
+    template fn6(procname: string, body: untyped): untyped = witness.inc
+    fn6("abc"): discard
+    assert witness == 1
+
+    template fn6(b = 1.5, body: untyped): untyped = witness.inc
+    fn6(1.3): discard
+    assert witness == 2
+
+  block:
+    var witness = 0
+    template fn6(a: int) = discard
+    template fn6(a: string) = discard
+    template fn6(ignore: string, b = 1.5, body: untyped): untyped = witness.inc
+    fn6(""):
+      foobar1
+      foobar2
+    doAssert witness == 1
+    fn6(""): discard
+    doAssert witness == 2
+
+  block: # multi block args
+    template fn8(a = 1, b = 2, body1: untyped, body2: untyped): auto = (a, b, astToStr(body1), astToStr(body2))
+    let a1 = fn8():
+      foobar1
+      foobar2
+    do:
+      foobar3
+      foobar4
+    doAssert a1 == (1, 2, "\nfoobar1\nfoobar2", "\nfoobar3\nfoobar4")
+
+    let a2 = fn8(b = 20):
+      foobar1
+      foobar2
+    do:
+      foobar3
+      foobar4
+    doAssert a2 == (1, 20, "\nfoobar1\nfoobar2", "\nfoobar3\nfoobar4")
+  
+  block: # issue #19015
+    template hi(a: untyped, b: varargs[untyped]): untyped =
+      a
+
+    var worked = false
+    hi:
+      worked = true
+    doAssert worked
+    worked = false
+    hi(doAssert(not worked)):
+      doesntCompile
+    hi(doAssert(not worked), doesntCompile, againDoesntCompile):
+      definitelyDoesntCompile
+
+    template hi2(a: bool, b: untyped, c: varargs[untyped]): untyped =
+      b
+      doAssert a
+
+    hi2 worked:
+      worked = true
+    doAssert worked
+    hi2 worked, doAssert(worked):
+      doesntCompile
+    hi2 worked, doAssert(worked), doesntCompile, againDoesntCompile:
+      definitelyDoesntCompile
+    hi2 worked, doAssert(worked), againDoesntCompile:
+      definitelyDoesntCompile
+
+static: main()
+main()
diff --git a/tests/misc/trunner.nim b/tests/misc/trunner.nim
new file mode 100644
index 000000000..6e5487d1b
--- /dev/null
+++ b/tests/misc/trunner.nim
@@ -0,0 +1,444 @@
+discard """
+  targets: "c cpp"
+  joinable: false
+"""
+
+## tests that don't quite fit the mold and are easier to handle via `execCmdEx`
+## A few others could be added to here to simplify code.
+## Note: this test is a bit slow but tests a lot of things; please don't disable.
+## Note: if needed, we could use `matrix: "-d:case1; -d:case2"` to split this
+## into several independent tests while retaining the common test helpers.
+
+import std/[strformat,os,osproc,unittest,compilesettings]
+from std/sequtils import toSeq,mapIt
+from std/algorithm import sorted
+import stdtest/[specialpaths, unittest_light]
+from std/private/globs import nativeToUnixPath
+from strutils import startsWith, strip, removePrefix
+from std/sugar import dup
+import "$lib/../compiler/nimpaths"
+
+proc isDots(a: string): bool =
+  ## test for `hintProcessing` dots
+  a.startsWith(".") and a.strip(chars = {'.'}) == ""
+
+const
+  nim = getCurrentCompilerExe()
+  mode = querySetting(backend)
+  nimcache = buildDir / "nimcacheTrunner"
+    # instead of `querySetting(nimcacheDir)`, avoids stomping on other parallel tests
+
+proc runNimCmd(file, options = "", rtarg = ""): auto =
+  let fileabs = testsDir / file.unixToNativePath
+  # doAssert fileabs.fileExists, fileabs # disabled because this allows passing `nim r --eval:code fakefile`
+  let cmd = fmt"{nim} {mode} --hint:all:off {options} {fileabs} {rtarg}"
+  result = execCmdEx(cmd)
+  when false: # for debugging
+    echo cmd
+    echo result[0] & "\n" & $result[1]
+
+proc runNimCmdChk(file, options = "", rtarg = "", status = 0): string =
+  let (ret, status2) = runNimCmd(file, options, rtarg = rtarg)
+  doAssert status2 == status, $(file, options, status, status2) & "\n" & ret
+  ret
+
+proc genShellCmd(filename: string): string =
+  let filename = filename.quoteShell
+  when defined(windows): "cmd /c " & filename # or "cmd /c " ?
+  else: "sh " & filename
+
+when defined(nimTrunnerFfi):
+  block: # mevalffi
+    when defined(openbsd):
+      #[
+      openbsd defines `#define stderr (&__sF[2])` which makes it cumbersome
+      for dlopen'ing inside `importcSymbol`. Instead of adding special rules
+      inside `importcSymbol` to handle this, we disable just the part that's
+      not working and will provide a more general, clean fix in future PR.
+      ]#
+      var opt = "-d:nimEvalffiStderrWorkaround"
+      let prefix = ""
+    else:
+      var opt = ""
+      let prefix = """
+hello world stderr
+hi stderr
+"""
+    let output = runNimCmdChk("vm/mevalffi.nim", fmt"{opt} --warnings:off --experimental:compiletimeFFI")
+    doAssert output == fmt"""
+{prefix}foo
+foo:100
+foo:101
+foo:102:103
+foo:102:103:104
+foo:0.03:asdf:103:105
+ret=[s1:foobar s2:foobar age:25 pi:3.14]
+""", output
+
+elif not defined(nimTestsTrunnerDebugging):
+  # don't run twice the same test with `nimTrunnerFfi`
+  # use `-d:nimTestsTrunnerDebugging` for debugging convenience when you want to just run 1 test
+  import std/strutils
+  import std/json
+  template check2(msg) = doAssert msg in output, output
+
+  block: # tests with various options `nim doc --project --index --docroot`
+    # regression tests for issues and PRS: #14376 #13223 #6583 ##13647
+    let file = testsDir / "nimdoc/sub/mmain.nim"
+    let mainFname = "mmain.html"
+    let htmldocsDirCustom = nimcache / "htmldocsCustom"
+    let docroot = testsDir / "nimdoc"
+    let options = [
+      0: "--project",
+      1: "--project --docroot",
+      2: "",
+      3: fmt"--outDir:{htmldocsDirCustom}",
+      4: fmt"--docroot:{docroot}",
+      5: "--project --useNimcache",
+      6: "--index:off",
+    ]
+
+    for i in 0..<options.len:
+      let htmldocsDir = case i
+      of 3: htmldocsDirCustom
+      of 5: nimcache / htmldocsDirname
+      else: file.parentDir / htmldocsDirname
+
+      var cmd = fmt"{nim} doc --index:on --filenames:abs --hint:successX:on --nimcache:{nimcache} {options[i]} {file}"
+      removeDir(htmldocsDir)
+      let (outp, exitCode) = execCmdEx(cmd)
+      check exitCode == 0
+      let ret = toSeq(walkDirRec(htmldocsDir, relative=true)).mapIt(it.nativeToUnixPath).sorted.join("\n")
+      let context = $(i, ret, cmd)
+      case i
+      of 0,5:
+        let htmlFile = htmldocsDir/mainFname
+        check htmlFile in outp # sanity check for `hintSuccessX`
+        assertEquals ret, fmt"""
+{dotdotMangle}/imp.html
+{dotdotMangle}/imp.idx
+{docHackJsFname}
+imp.html
+imp.idx
+imp2.html
+imp2.idx
+{mainFname}
+mmain.idx
+{nimdocOutCss}
+{theindexFname}""", context
+      of 1: assertEquals ret, fmt"""
+{docHackJsFname}
+{nimdocOutCss}
+tests/nimdoc/imp.html
+tests/nimdoc/imp.idx
+tests/nimdoc/sub/imp.html
+tests/nimdoc/sub/imp.idx
+tests/nimdoc/sub/imp2.html
+tests/nimdoc/sub/imp2.idx
+tests/nimdoc/sub/{mainFname}
+tests/nimdoc/sub/mmain.idx
+{theindexFname}"""
+      of 2, 3: assertEquals ret, fmt"""
+{docHackJsFname}
+{mainFname}
+mmain.idx
+{nimdocOutCss}""", context
+      of 4: assertEquals ret, fmt"""
+{docHackJsFname}
+{nimdocOutCss}
+sub/{mainFname}
+sub/mmain.idx""", context
+      of 6: assertEquals ret, fmt"""
+{mainFname}
+{nimdocOutCss}""", context
+      else: doAssert false
+
+  block: # mstatic_assert
+    let (output, exitCode) = runNimCmd("ccgbugs/mstatic_assert.nim", "-d:caseBad")
+    check2 "sizeof(bool) == 2"
+    check exitCode != 0
+
+  block: # ABI checks
+    let file = "misc/msizeof5.nim"
+    block:
+      discard runNimCmdChk(file, "-d:checkAbi")
+    block:
+      let (output, exitCode) = runNimCmd(file, "-d:checkAbi -d:caseBad")
+      # on platforms that support _StaticAssert natively, errors will show full context, e.g.:
+      # error: static_assert failed due to requirement 'sizeof(unsigned char) == 8'
+      # "backend & Nim disagree on size for: BadImportcType{int64} [declared in mabi_check.nim(1, 6)]"
+      check2 "sizeof(unsigned char) == 8"
+      check2 "sizeof(struct Foo2) == 1"
+      check2 "sizeof(Foo5) == 16"
+      check2 "sizeof(Foo5) == 3"
+      check2 "sizeof(struct Foo6) == "
+      check exitCode != 0
+
+  import streams
+  block: # stdin input
+    let nimcmd = fmt"""{nim} r --hints:off - -firstparam "-second param" """
+    let expected = """@["-firstparam", "-second param"]"""
+    block:
+      let p = startProcess(nimcmd, options = {poEvalCommand})
+      p.inputStream.write("import os; echo commandLineParams()")
+      p.inputStream.close
+      var output = p.outputStream.readAll
+      let error = p.errorStream.readAll
+      doAssert p.waitForExit == 0
+      doAssert error.len == 0, $error
+      output.stripLineEnd
+      check output == expected
+      p.errorStream.close
+      p.outputStream.close
+
+    block:
+      when defined posix:
+        # xxx on windows, `poEvalCommand` should imply `/cmd`, (which should
+        # make this work), but currently doesn't
+        let cmd = fmt"""echo "import os; echo commandLineParams()" | {nimcmd}"""
+        var (output, exitCode) = execCmdEx(cmd)
+        output.stripLineEnd
+        check output == expected
+        doAssert exitCode == 0
+
+  block: # nim doc --backend:$backend --doccmd:$cmd
+    # test for https://github.com/nim-lang/Nim/issues/13129
+    # test for https://github.com/nim-lang/Nim/issues/13891
+    let file = testsDir / "nimdoc/m13129.nim"
+    for backend in fmt"{mode} js".split:
+      # pending #14343 this fails on windows: --doccmd:"-d:m13129Foo2 --hints:off"
+      let cmd = fmt"""{nim} doc -b:{backend} --nimcache:{nimcache} -d:m13129Foo1 "--doccmd:-d:m13129Foo2 --hints:off" --usenimcache --hints:off {file}"""
+      check execCmdEx(cmd) == (&"ok1:{backend}\nok2: backend: {backend}\n", 0)
+    # checks that --usenimcache works with `nim doc`
+    check fileExists(nimcache / "htmldocs/m13129.html")
+
+    block: # mak sure --backend works with `nim r`
+      let cmd = fmt"{nim} r --backend:{mode} --hints:off --nimcache:{nimcache} {file}"
+      check execCmdEx(cmd) == ("ok3\n", 0)
+
+  block: # nim jsondoc # bug #20132
+    let file = testsDir / "misc/mjsondoc.nim"
+    let output = "nimcache_tjsondoc.json"
+    defer: removeFile(output)
+    let (msg, exitCode) = execCmdEx(fmt"{nim} jsondoc -o:{output} {file}")
+    doAssert exitCode == 0, msg
+
+    let data = parseJson(readFile(output))["entries"]
+    doAssert data.len == 5
+    let doSomething = data[0]
+    doAssert doSomething["name"].getStr == "doSomething"
+    doAssert doSomething["type"].getStr == "skProc"
+    doAssert doSomething["line"].getInt == 1
+    doAssert doSomething["col"].getInt == 0
+    doAssert doSomething["code"].getStr == "proc doSomething(x, y: int): int {.raises: [], tags: [], forbids: [].}"
+    let foo2 = data[4]
+    doAssert $foo2["signature"] == """{"arguments":[{"name":"x","type":"T"},{"name":"y","type":"U"},{"name":"z","type":"M"}],"genericParams":[{"name":"T","types":"int"},{"name":"M","types":"string"},{"name":"U"}]}"""
+
+  block: # nim jsondoc # bug #11953
+    let file = testsDir / "misc/mjsondoc.nim"
+    let destDir = testsDir / "misc/htmldocs"
+    removeDir(destDir)
+    defer: removeDir(destDir)
+    let (msg, exitCode) = execCmdEx(fmt"{nim} jsondoc {file}")
+    doAssert exitCode == 0, msg
+
+    let data = parseJson(readFile(destDir / "mjsondoc.json"))["entries"]
+    doAssert data.len == 5
+    let doSomething = data[0]
+    doAssert doSomething["name"].getStr == "doSomething"
+    doAssert doSomething["type"].getStr == "skProc"
+    doAssert doSomething["line"].getInt == 1
+    doAssert doSomething["col"].getInt == 0
+    doAssert doSomething["code"].getStr == "proc doSomething(x, y: int): int {.raises: [], tags: [], forbids: [].}"
+
+  block: # further issues with `--backend`
+    let file = testsDir / "misc/mbackend.nim"
+    var cmd = fmt"{nim} doc -b:cpp --hints:off --nimcache:{nimcache} {file}"
+    check execCmdEx(cmd) == ("", 0)
+    cmd = fmt"{nim} check -b:c -b:cpp --hints:off --nimcache:{nimcache} {file}"
+    check execCmdEx(cmd) == ("", 0)
+    # issue https://github.com/timotheecour/Nim/issues/175
+    cmd = fmt"{nim} c -b:js -b:cpp --hints:off --nimcache:{nimcache} {file}"
+    check execCmdEx(cmd) == ("", 0)
+
+  block: # some importc tests
+    # issue #14314
+    let file = testsDir / "misc/mimportc.nim"
+    let cmd = fmt"{nim} r -b:cpp --hints:off --nimcache:{nimcache} --warningAsError:ProveInit {file}"
+    check execCmdEx(cmd) == ("witness\n", 0)
+
+  block: # bug #20149
+    let file = testsDir / "misc/m20149.nim"
+    let cmd = fmt"{nim} r --hints:off --nimcache:{nimcache} --hintAsError:XDeclaredButNotUsed {file}"
+    check execCmdEx(cmd) == ("12\n", 0)
+
+  block: # bug #15316
+    when not defined(windows):
+      # This never worked reliably on Windows. Needs further investigation but it is hard to reproduce.
+      # Looks like a mild stack corruption when bailing out of nested exception handling.
+      let file = testsDir / "misc/m15316.nim"
+      let cmd = fmt"{nim} check --hints:off --nimcache:{nimcache} {file}"
+      check execCmdEx(cmd) == ("m15316.nim(1, 15) Error: expression expected, but found \')\'\nm15316.nim(2, 1) Error: expected: \':\', but got: \'[EOF]\'\nm15316.nim(2, 1) Error: expression expected, but found \'[EOF]\'\nm15316.nim(2, 1) " &
+            "Error: expected: \')\', but got: \'[EOF]\'\nError: illformed AST: \n", 1)
+
+
+  block: # config.nims, nim.cfg, hintConf, bug #16557
+    let cmd = fmt"{nim} r --hint:all:off --hint:conf tests/newconfig/bar/mfoo.nim"
+    let (outp, exitCode) = execCmdEx(cmd, options = {poStdErrToStdOut})
+    doAssert exitCode == 0
+    let dir = getCurrentDir()
+    let files = """
+tests/config.nims
+tests/newconfig/bar/nim.cfg
+tests/newconfig/bar/config.nims
+tests/newconfig/bar/mfoo.nim.cfg
+tests/newconfig/bar/mfoo.nims""".splitLines
+    var expected = ""
+    for a in files:
+      let b = dir / a
+      expected.add &"Hint: used config file '{b}' [Conf]\n"
+    doAssert outp.endsWith expected, outp & "\n" & expected
+
+  block: # bug #8219
+    let file = "tests/newconfig/mconfigcheck.nims"
+    let cmd = fmt"{nim} check --hints:off {file}"
+    check execCmdEx(cmd) == ("", 0)
+
+  block: # mfoo2.customext
+    let filename = testsDir / "newconfig/foo2/mfoo2.customext"
+    let cmd = fmt"{nim} e --hint:conf {filename}"
+    let (outp, exitCode) = execCmdEx(cmd, options = {poStdErrToStdOut})
+    doAssert exitCode == 0
+    var expected = &"Hint: used config file '{filename}' [Conf]\n"
+    doAssert outp.endsWith "123" & "\n" & expected
+
+
+  block: # nim --eval
+    let opt = "--hints:off"
+    check fmt"""{nim} {opt} --eval:"echo defined(nimscript)"""".execCmdEx == ("true\n", 0)
+    check fmt"""{nim} r {opt} --eval:"echo defined(c)"""".execCmdEx == ("true\n", 0)
+    check fmt"""{nim} r -b:js {opt} --eval:"echo defined(js)"""".execCmdEx == ("true\n", 0)
+
+  block: # `hintProcessing` dots should not interfere with `static: echo` + friends
+    let cmd = fmt"""{nim} r --hint:all:off --hint:processing -f --eval:"static: echo 1+1""""
+    let (outp, exitCode) = execCmdEx(cmd, options = {poStdErrToStdOut})
+    template check3(cond) = doAssert cond, $(outp,)
+    doAssert exitCode == 0
+    let lines = outp.splitLines
+    check3 lines.len == 3
+    when not defined(windows): # xxx: on windows, dots not properly handled, gives: `....2\n\n`
+      check3 lines[0].isDots
+      check3 lines[1] == "2"
+      check3 lines[2] == ""
+    else:
+      check3 "2" in outp
+
+  block: # nim secret
+    let opt = "--hint:all:off --hint:processing"
+    template check3(cond) = doAssert cond, $(outp,)
+    for extra in ["", "--stdout"]:
+      let cmd = fmt"""{nim} secret {opt} {extra}"""
+      # xxx minor bug: `nim --hint:QuitCalled:off secret` ignores the hint cmdline flag
+      template run(input2): untyped =
+        execCmdEx(cmd, options = {poStdErrToStdOut}, input = input2)
+      block:
+        let (outp, exitCode) = run """echo 1+2; import strutils; echo strip(" ab "); quit()"""
+        let lines = outp.splitLines
+        when not defined(windows):
+          check3 lines.len == 5
+          check3 lines[0].isDots
+          # check3 lines[1].isDots # todo nim secret might use parsing pipeline
+          check3 lines[2].dup(removePrefix(">>> ")) == "3" # prompt depends on `nimUseLinenoise`
+          check3 lines[3] == "ab"
+          check3 lines[4] == ""
+        else:
+          check3 "3" in outp
+          check3 "ab" in outp
+        doAssert exitCode == 0
+      block:
+        let (outp, exitCode) = run "echo 1+2; quit(2)"
+        check3 "3" in outp
+        doAssert exitCode == 2
+
+  block: # nimBetterRun
+    let file = "misc/mbetterrun.nim"
+    const nimcache2 = buildDir / "D20210423T185116"
+    removeDir nimcache2
+    # related to `-d:nimBetterRun`
+    let opt = fmt"-r --usenimcache --nimcache:{nimcache2}"
+    var ret = ""
+    for a in @["v1", "v2", "v1", "v3"]:
+      ret.add runNimCmdChk(file, fmt"{opt} -d:mbetterrunVal:{a}")
+    ret.add runNimCmdChk(file, fmt"{opt} -d:mbetterrunVal:v2", rtarg = "arg1 arg2")
+      # rt arguments should not cause a recompilation
+    doAssert ret == """
+compiling: v1
+running: v1
+compiling: v2
+running: v2
+running: v1
+compiling: v3
+running: v3
+running: v2
+""", ret
+
+  block: # nim dump
+    let cmd = fmt"{nim} dump --dump.format:json -d:D20210428T161003 --hints:off ."
+    let (ret, status) = execCmdEx(cmd)
+    doAssert status == 0
+    let j = ret.parseJson
+    # sanity checks
+    doAssert "D20210428T161003" in j["defined_symbols"].to(seq[string])
+    doAssert j["version"].to(string) == NimVersion
+    doAssert j["nimExe"].to(string) == getCurrentCompilerExe()
+
+  block: # genscript
+    const nimcache2 = buildDir / "D20210524T212851"
+    removeDir(nimcache2)
+    let input = "tgenscript_fakefile" # no need for a real file, --eval is good enough
+    let output = runNimCmdChk(input, fmt"""--genscript --nimcache:{nimcache2.quoteShell} --eval:"echo(12345)" """)
+    doAssert output.len == 0, output
+    let ext = when defined(windows): ".bat" else: ".sh"
+    let filename = fmt"compile_{input}{ext}" # synchronize with `generateScript`
+    doAssert fileExists(nimcache2/filename), nimcache2/filename
+    let (outp, status) = execCmdEx(genShellCmd(filename), options = {poStdErrToStdOut}, workingDir = nimcache2)
+    doAssert status == 0, outp
+    let (outp2, status2) = execCmdEx(nimcache2 / input, options = {poStdErrToStdOut})
+    doAssert outp2 == "12345\n", outp2
+    doAssert status2 == 0
+
+  block: # UnusedImport
+    proc fn(opt: string, expected: string) =
+      let output = runNimCmdChk("msgs/mused3.nim", fmt"--warning:all:off --warning:UnusedImport --hint:DuplicateModuleImport {opt}")
+      doAssert output == expected, opt & "\noutput:\n" & output & "expected:\n" & expected
+    fn("-d:case1"): """
+mused3.nim(13, 8) Warning: imported and not used: 'mused3b' [UnusedImport]
+"""
+    fn("-d:case2"): ""
+    fn("-d:case3"): ""
+    fn("-d:case4"): ""
+    fn("-d:case5"): ""
+    fn("-d:case6"): ""
+    fn("-d:case7"): ""
+    fn("-d:case8"): ""
+    fn("-d:case9"): ""
+    fn("-d:case10"): ""
+    when false:
+      fn("-d:case11"): """
+  Warning: imported and not used: 'm2' [UnusedImport]
+  """
+    fn("-d:case12"): """
+mused3.nim(75, 10) Hint: duplicate import of 'mused3a'; previous import here: mused3.nim(74, 10) [DuplicateModuleImport]
+"""
+
+  block: # FieldDefect
+    proc fn(opt: string, expected: string) =
+      let output = runNimCmdChk("misc/mfield_defect.nim", fmt"-r --warning:all:off --declaredlocs {opt}", status = 1)
+      doAssert expected in output, opt & "\noutput:\n" & output & "expected:\n" & expected
+    fn("-d:case1"): """mfield_defect.nim(25, 15) Error: field 'f2' is not accessible for type 'Foo' [discriminant declared in mfield_defect.nim(14, 8)] using 'kind = k3'"""
+    fn("-d:case2 --gc:refc"): """mfield_defect.nim(25, 15) field 'f2' is not accessible for type 'Foo' [discriminant declared in mfield_defect.nim(14, 8)] using 'kind = k3'"""
+    fn("-d:case1 -b:js"): """mfield_defect.nim(25, 15) Error: field 'f2' is not accessible for type 'Foo' [discriminant declared in mfield_defect.nim(14, 8)] using 'kind = k3'"""
+    fn("-d:case2 -b:js"): """field 'f2' is not accessible for type 'Foo' [discriminant declared in mfield_defect.nim(14, 8)] using 'kind = k3'"""
+    fn("-d:case2 --gc:arc"): """mfield_defect.nim(25, 15) field 'f2' is not accessible for type 'Foo' [discriminant declared in mfield_defect.nim(14, 8)] using 'kind = k3'"""
+else:
+  discard # only during debugging, tests added here will run with `-d:nimTestsTrunnerDebugging` enabled
diff --git a/tests/misc/trunner_special.nim b/tests/misc/trunner_special.nim
new file mode 100644
index 000000000..e08b419b0
--- /dev/null
+++ b/tests/misc/trunner_special.nim
@@ -0,0 +1,37 @@
+discard """
+  targets: "c cpp"
+  joinable: false
+  disabled: osx
+"""
+
+#[
+Runs tests that require special treatment, e.g. because they rely on 3rd party code
+or require external networking.
+
+xxx test all tests/untestable/* here, possibly with adjustments to make running times reasonable
+]#
+
+import std/[strformat,os,unittest,compilesettings]
+import stdtest/specialpaths
+
+
+from stdtest/testutils import disableSSLTesting
+
+
+const
+  nim = getCurrentCompilerExe()
+  mode = querySetting(backend)
+
+proc runCmd(cmd: string) =
+  let ret = execShellCmd(cmd)
+  check ret == 0 # allows more than 1 failure
+
+proc main =
+  let options = fmt"-b:{mode} --hints:off"
+  block: # SSL nimDisableCertificateValidation integration tests
+    runCmd fmt"{nim} r {options} -d:nimDisableCertificateValidation -d:ssl {testsDir}/untestable/thttpclient_ssl_disabled.nim"
+  block: # SSL certificate check integration tests
+    runCmd fmt"{nim} r {options} -d:ssl --threads:on --mm:refc {testsDir}/untestable/thttpclient_ssl_remotenetwork.nim"
+
+when not disableSSLTesting():
+  main()
diff --git a/tests/misc/tsamename.nim b/tests/misc/tsamename.nim
new file mode 100644
index 000000000..b2d17a506
--- /dev/null
+++ b/tests/misc/tsamename.nim
@@ -0,0 +1,15 @@
+# bug #9891
+
+import "."/tsamename2
+
+# this works
+callFun(fooBar2)
+
+when true:
+  # Error: attempting to call routine: 'processPattern'
+  callFun(fooBar)
+
+when true:
+  # BUG: Error: internal error: expr(skModule); unknown symbol
+  proc processPattern() = discard
+  callFun(fooBar)
diff --git a/tests/misc/tsamename2.nim b/tests/misc/tsamename2.nim
new file mode 100644
index 000000000..d2272f557
--- /dev/null
+++ b/tests/misc/tsamename2.nim
@@ -0,0 +1,4 @@
+proc fooBar*()=discard
+proc fooBar2*()=discard
+proc callFun*[Fun](processPattern: Fun) =
+  processPattern()
diff --git a/tests/misc/tsemfold.nim b/tests/misc/tsemfold.nim
new file mode 100644
index 000000000..2ce8d9560
--- /dev/null
+++ b/tests/misc/tsemfold.nim
@@ -0,0 +1,27 @@
+discard """
+  action: run
+"""
+
+doAssertRaises(OverflowDefect): discard low(int8) - 1'i8
+doAssertRaises(OverflowDefect): discard high(int8) + 1'i8
+doAssertRaises(OverflowDefect): discard abs(low(int8))
+doAssertRaises(DivByZeroDefect): discard 1 mod 0
+doAssertRaises(DivByZeroDefect): discard 1 div 0
+doAssertRaises(OverflowDefect): discard low(int8) div -1'i8
+
+doAssertRaises(OverflowDefect): discard -low(int64)
+doAssertRaises(OverflowDefect): discard low(int64) - 1'i64
+doAssertRaises(OverflowDefect): discard high(int64) + 1'i64
+
+type E = enum eA, eB
+doAssertRaises(OverflowDefect): discard eA.pred
+doAssertRaises(OverflowDefect): discard eB.succ
+
+doAssertRaises(OverflowDefect): discard low(int8) * -1
+doAssertRaises(OverflowDefect): discard low(int64) * -1
+doAssertRaises(OverflowDefect): discard high(int8) * 2
+doAssertRaises(OverflowDefect): discard high(int64) * 2
+
+doAssert abs(-1) == 1
+doAssert 2 div 2 == 1
+doAssert 2 * 3 == 6
diff --git a/tests/misc/tshadow_magic_type.nim b/tests/misc/tshadow_magic_type.nim
new file mode 100644
index 000000000..8b2d26133
--- /dev/null
+++ b/tests/misc/tshadow_magic_type.nim
@@ -0,0 +1,29 @@
+discard """
+output: '''
+mylist
+'''
+"""
+
+
+type
+  TListItemType* = enum
+    RedisNil, RedisString
+
+  TListItem* = object
+    case kind*: TListItemType
+    of RedisString:
+      str*: string
+    else: nil
+  TRedisList* = seq[TListItem]
+
+# Caused by this.
+proc seq*() =
+  discard
+
+proc lrange*(key: string): TRedisList =
+  var foo = TListItem(kind: RedisString, str: key)
+  result = @[foo]
+
+var p = lrange("mylist")
+for i in items(p):
+  echo(i.str)
diff --git a/tests/misc/tsimplesort.nim b/tests/misc/tsimplesort.nim
new file mode 100644
index 000000000..395db55e6
--- /dev/null
+++ b/tests/misc/tsimplesort.nim
@@ -0,0 +1,306 @@
+discard """
+  output: '''true'''
+"""
+
+import hashes, math
+
+{.pragma: myShallow.}
+
+type
+  TSlotEnum = enum seEmpty, seFilled, seDeleted
+  TKeyValuePair[A, B] = tuple[slot: TSlotEnum, key: A, val: B]
+  TKeyValuePairSeq[A, B] = seq[TKeyValuePair[A, B]]
+  TTable*[A, B] {.final, myShallow.} = object
+    data: TKeyValuePairSeq[A, B]
+    counter: int
+
+proc len*[A, B](t: TTable[A, B]): int =
+  ## returns the number of keys in `t`.
+  result = t.counter
+
+iterator pairs*[A, B](t: TTable[A, B]): tuple[key: A, val: B] =
+  ## iterates over any (key, value) pair in the table `t`.
+  for h in 0..high(t.data):
+    if t.data[h].slot == seFilled: yield (t.data[h].key, t.data[h].val)
+
+iterator keys*[A, B](t: TTable[A, B]): A =
+  ## iterates over any key in the table `t`.
+  for h in 0..high(t.data):
+    if t.data[h].slot == seFilled: yield t.data[h].key
+
+iterator values*[A, B](t: TTable[A, B]): B =
+  ## iterates over any value in the table `t`.
+  for h in 0..high(t.data):
+    if t.data[h].slot == seFilled: yield t.data[h].val
+
+const
+  growthFactor = 2
+
+proc mustRehash(length, counter: int): bool {.inline.} =
+  assert(length > counter)
+  result = (length * 2 < counter * 3) or (length - counter < 4)
+
+proc nextTry(h, maxHash: Hash): Hash {.inline.} =
+  result = ((5 * h) + 1) and maxHash
+
+template rawGetImpl() =
+  var h: Hash = hash(key) and high(t.data) # start with real hash value
+  while t.data[h].slot != seEmpty:
+    if t.data[h].key == key and t.data[h].slot == seFilled:
+      return h
+    h = nextTry(h, high(t.data))
+  result = -1
+
+template rawInsertImpl() =
+  var h: Hash = hash(key) and high(data)
+  while data[h].slot == seFilled:
+    h = nextTry(h, high(data))
+  data[h].key = key
+  data[h].val = val
+  data[h].slot = seFilled
+
+proc rawGet[A, B](t: TTable[A, B], key: A): int =
+  rawGetImpl()
+
+proc `[]`*[A, B](t: TTable[A, B], key: A): B =
+  ## retrieves the value at ``t[key]``. If `key` is not in `t`,
+  ## default empty value for the type `B` is returned
+  ## and no exception is raised. One can check with ``hasKey`` whether the key
+  ## exists.
+  var index = rawGet(t, key)
+  if index >= 0: result = t.data[index].val
+
+proc hasKey*[A, B](t: TTable[A, B], key: A): bool =
+  ## returns true iff `key` is in the table `t`.
+  result = rawGet(t, key) >= 0
+
+proc rawInsert[A, B](t: var TTable[A, B], data: var TKeyValuePairSeq[A, B],
+                     key: A, val: B) =
+  rawInsertImpl()
+
+proc enlarge[A, B](t: var TTable[A, B]) =
+  var n: TKeyValuePairSeq[A, B]
+  newSeq(n, len(t.data) * growthFactor)
+  for i in countup(0, high(t.data)):
+    if t.data[i].slot == seFilled: rawInsert(t, n, t.data[i].key, t.data[i].val)
+  swap(t.data, n)
+
+template putImpl() =
+  var index = rawGet(t, key)
+  if index >= 0:
+    t.data[index].val = val
+  else:
+    if mustRehash(len(t.data), t.counter): enlarge(t)
+    rawInsert(t, t.data, key, val)
+    inc(t.counter)
+
+proc `[]=`*[A, B](t: var TTable[A, B], key: A, val: B) =
+  ## puts a (key, value)-pair into `t`.
+  putImpl()
+
+proc del*[A, B](t: var TTable[A, B], key: A) =
+  ## deletes `key` from hash table `t`.
+  var index = rawGet(t, key)
+  if index >= 0:
+    t.data[index].slot = seDeleted
+    dec(t.counter)
+
+proc initTable*[A, B](initialSize=64): TTable[A, B] =
+  ## creates a new hash table that is empty. `initialSize` needs to be
+  ## a power of two.
+  assert isPowerOfTwo(initialSize)
+  result.counter = 0
+  newSeq(result.data, initialSize)
+
+proc toTable*[A, B](pairs: openArray[tuple[key: A,
+                    val: B]]): TTable[A, B] =
+  ## creates a new hash table that contains the given `pairs`.
+  result = initTable[A, B](nextPowerOfTwo(pairs.len+10))
+  for key, val in items(pairs): result[key] = val
+
+template dollarImpl(): typed =
+  if t.len == 0:
+    result = "{:}"
+  else:
+    result = "{"
+    for key, val in pairs(t):
+      if result.len > 1: result.add(", ")
+      result.add($key)
+      result.add(": ")
+      result.add($val)
+    result.add("}")
+
+proc `$`*[A, B](t: TTable[A, B]): string =
+  ## The `$` operator for hash tables.
+  dollarImpl()
+
+# ------------------------------ count tables -------------------------------
+
+type
+  TCountTable*[A] {.final, myShallow.} = object ## table that counts the number of each key
+    data: seq[tuple[key: A, val: int]]
+    counter: int
+
+proc len*[A](t: TCountTable[A]): int =
+  ## returns the number of keys in `t`.
+  result = t.counter
+
+iterator pairs*[A](t: TCountTable[A]): tuple[key: A, val: int] =
+  ## iterates over any (key, value) pair in the table `t`.
+  for h in 0..high(t.data):
+    if t.data[h].val != 0: yield (t.data[h].key, t.data[h].val)
+
+iterator keys*[A](t: TCountTable[A]): A =
+  ## iterates over any key in the table `t`.
+  for h in 0..high(t.data):
+    if t.data[h].val != 0: yield t.data[h].key
+
+iterator values*[A](t: TCountTable[A]): int =
+  ## iterates over any value in the table `t`.
+  for h in 0..high(t.data):
+    if t.data[h].val != 0: yield t.data[h].val
+
+proc RawGet[A](t: TCountTable[A], key: A): int =
+  var h: Hash = hash(key) and high(t.data) # start with real hash value
+  while t.data[h].val != 0:
+    if t.data[h].key == key: return h
+    h = nextTry(h, high(t.data))
+  result = -1
+
+proc `[]`*[A](t: TCountTable[A], key: A): int =
+  ## retrieves the value at ``t[key]``. If `key` is not in `t`,
+  ## 0 is returned. One can check with ``hasKey`` whether the key
+  ## exists.
+  var index = RawGet(t, key)
+  if index >= 0: result = t.data[index].val
+
+proc hasKey*[A](t: TCountTable[A], key: A): bool =
+  ## returns true iff `key` is in the table `t`.
+  result = rawGet(t, key) >= 0
+
+proc rawInsert[A](t: TCountTable[A], data: var seq[tuple[key: A, val: int]],
+                  key: A, val: int) =
+  var h: Hash = hash(key) and high(data)
+  while data[h].val != 0: h = nextTry(h, high(data))
+  data[h].key = key
+  data[h].val = val
+
+proc enlarge[A](t: var TCountTable[A]) =
+  var n: seq[tuple[key: A, val: int]]
+  newSeq(n, len(t.data) * growthFactor)
+  for i in countup(0, high(t.data)):
+    if t.data[i].val != 0: rawInsert(t, n, t.data[i].key, t.data[i].val)
+  swap(t.data, n)
+
+proc `[]=`*[A](t: var TCountTable[A], key: A, val: int) =
+  ## puts a (key, value)-pair into `t`. `val` has to be positive.
+  assert val > 0
+  putImpl()
+
+proc initCountTable*[A](initialSize=64): TCountTable[A] =
+  ## creates a new count table that is empty. `initialSize` needs to be
+  ## a power of two.
+  assert isPowerOfTwo(initialSize)
+  result.counter = 0
+  newSeq(result.data, initialSize)
+
+proc toCountTable*[A](keys: openArray[A]): TCountTable[A] =
+  ## creates a new count table with every key in `keys` having a count of 1.
+  result = initCountTable[A](nextPowerOfTwo(keys.len+10))
+  for key in items(keys): result[key] = 1
+
+proc `$`*[A](t: TCountTable[A]): string =
+  ## The `$` operator for count tables.
+  dollarImpl()
+
+proc inc*[A](t: var TCountTable[A], key: A, val = 1) =
+  ## increments `t[key]` by `val`.
+  var index = RawGet(t, key)
+  if index >= 0:
+    inc(t.data[index].val, val)
+  else:
+    if mustRehash(len(t.data), t.counter): enlarge(t)
+    rawInsert(t, t.data, key, val)
+    inc(t.counter)
+
+proc smallest*[A](t: TCountTable[A]): tuple[key: A, val: int] =
+  ## returns the largest (key,val)-pair. Efficiency: O(n)
+  assert t.len > 0
+  var minIdx = 0
+  for h in 1..high(t.data):
+    if t.data[h].val > 0 and t.data[minIdx].val > t.data[h].val: minIdx = h
+  result.key = t.data[minIdx].key
+  result.val = t.data[minIdx].val
+
+proc largest*[A](t: TCountTable[A]): tuple[key: A, val: int] =
+  ## returns the (key,val)-pair with the largest `val`. Efficiency: O(n)
+  assert t.len > 0
+  var maxIdx = 0
+  for h in 1..high(t.data):
+    if t.data[maxIdx].val < t.data[h].val: maxIdx = h
+  result.key = t.data[maxIdx].key
+  result.val = t.data[maxIdx].val
+
+proc sort*[A](t: var TCountTable[A]) =
+  ## sorts the count table so that the entry with the highest counter comes
+  ## first. This is destructive! You must not modify `t` afterwards!
+  ## You can use the iterators `pairs`,  `keys`, and `values` to iterate over
+  ## `t` in the sorted order.
+
+  # we use shellsort here; fast enough and simple
+  var h = 1
+  while true:
+    h = 3 * h + 1
+    if h >= high(t.data): break
+  while true:
+    h = h div 3
+    for i in countup(h, high(t.data)):
+      var j = i
+      while t.data[j-h].val <= t.data[j].val:
+        var xyz = t.data[j]
+        t.data[j] = t.data[j-h]
+        t.data[j-h] = xyz
+        j = j-h
+        if j < h: break
+    if h == 1: break
+
+
+const
+  data = {
+    "34": 123456, "12": 789,
+    "90": 343, "0": 34404,
+    "1": 344004, "2": 344774,
+    "3": 342244, "4": 3412344,
+    "5": 341232144, "6": 34214544,
+    "7": 3434544, "8": 344544,
+    "9": 34435644, "---00": 346677844,
+    "10": 34484, "11": 34474, "19": 34464,
+    "20": 34454, "30": 34141244, "40": 344114,
+    "50": 344490, "60": 344491, "70": 344492,
+    "80": 344497}
+
+proc countTableTest1 =
+  var s = initTable[string, int](64)
+  for key, val in items(data): s[key] = val
+  var w: tuple[key: string, val: int] #type(otherCountTable.data[0])
+
+  var t = initCountTable[string]()
+  for k, v in items(data): t.inc(k)
+  for k in t.keys: assert t[k] == 1
+  t.inc("90", 3)
+  t.inc("12", 2)
+  t.inc("34", 1)
+  assert t.largest()[0] == "90"
+  t.sort()
+
+  var i = 0
+  for k, v in t.pairs:
+    case i
+    of 0: assert k == "90" and v == 4
+    of 1: assert k == "12" and v == 3
+    of 2: assert k == "34" and v == 2
+    else: break
+    inc i
+
+countTableTest1()
+echo true
diff --git a/tests/misc/tsizeof.nim b/tests/misc/tsizeof.nim
new file mode 100644
index 000000000..ce5334664
--- /dev/null
+++ b/tests/misc/tsizeof.nim
@@ -0,0 +1,742 @@
+discard """
+  targets: "c cpp"
+  output: '''
+body executed
+body executed
+OK
+macros api OK
+'''
+"""
+
+# This is for Azure. The keyword ``alignof`` only exists in ``c++11``
+# and newer. On Azure gcc does not default to c++11 yet.
+when defined(cpp) and not defined(windows):
+  {.passC: "-std=c++11".}
+
+# Object offsets are different for inheritance objects when compiling
+# to c++.
+
+type
+  TMyEnum = enum
+    tmOne, tmTwo, tmThree, tmFour
+
+  TMyArray1 = array[3, uint8]
+  TMyArray2 = array[1..3, int32]
+  TMyArray3 = array[TMyEnum, float64]
+
+var failed = false
+
+const
+  mysize1 = sizeof(TMyArray1)
+  mysize2 = sizeof(TMyArray2)
+  mysize3 = sizeof(TMyArray3)
+
+doAssert mysize1 == 3
+doAssert mysize2 == 12
+doAssert mysize3 == 32
+
+import macros, typetraits
+
+macro testSizeAlignOf(args: varargs[untyped]): untyped =
+  result = newStmtList()
+  for arg in args:
+    result.add quote do:
+      let
+        c_size = c_sizeof(`arg`)
+        nim_size = sizeof(`arg`)
+        c_align = c_alignof(type(`arg`))
+        nim_align = alignof(`arg`)
+
+      if nim_size != c_size or nim_align != c_align:
+        var msg = strAlign(`arg`.type.name & ": ")
+        if nim_size != c_size:
+          msg.add  " size(got, expected):  " & $nim_size & " != " & $c_size
+        if nim_align != c_align:
+          msg.add  " align(get, expected): " & $nim_align & " != " & $c_align
+        echo msg
+        failed = true
+
+
+macro testOffsetOf(a, b: untyped): untyped =
+  let typeName = newLit(a.repr)
+  let member   = newLit(b.repr)
+  result = quote do:
+    let
+      c_offset   = c_offsetof(`a`,`b`)
+      nim_offset = offsetof(`a`,`b`)
+    if c_offset != nim_offset:
+      echo `typeName`, ".", `member`, " offsetError, C: ", c_offset, " nim: ", nim_offset
+      failed = true
+
+proc strAlign(arg: string): string =
+  const minLen = 22
+  result = arg
+  for i in 0 ..< minLen - arg.len:
+    result &= ' '
+
+macro c_offsetof(fieldAccess: typed): int32 =
+  ## Bullet proof implementation that works on actual offsetof operator
+  ## in the c backend. Assuming of course this implementation is
+  ## correct.
+  let s = if fieldAccess.kind == nnkCheckedFieldExpr: fieldAccess[0]
+          else: fieldAccess
+  let a = s[0].getTypeInst
+  let b = s[1]
+  result = quote do:
+    var res: int32
+    {.emit: [res, " = offsetof(", `a`, ", ", `b`, ");"] .}
+    res
+
+template c_offsetof(t: typedesc, a: untyped): int32 =
+  var x: ptr t
+  c_offsetof(x[].a)
+
+macro c_sizeof(a: typed): int32 =
+  ## Bullet proof implementation that works using the sizeof operator
+  ## in the c backend. Assuming of course this implementation is
+  ## correct.
+  result = quote do:
+    var res: int32
+    {.emit: [res, " = sizeof(", `a`, ");"] .}
+    res
+
+macro c_alignof(arg: untyped): untyped =
+  ## Bullet proof implementation that works on actual alignment
+  ## behavior measured at runtime.
+  let typeSym = genSym(nskType, "AlignTestType"&arg.repr)
+  result = quote do:
+    type
+      `typeSym` = object
+        causeAlign: byte
+        member: `arg`
+    c_offsetof(`typeSym`, member)
+
+macro testAlign(arg:untyped):untyped =
+  let prefix = newLit(arg.lineinfo & "  alignof " & arg.repr & " ")
+  result = quote do:
+    let cAlign = c_alignof(`arg`)
+    let nimAlign = alignof(`arg`)
+    if cAlign != nimAlign:
+      echo `prefix`, cAlign, " != ", nimAlign
+      failed = true
+
+macro testSize(arg:untyped):untyped =
+  let prefix = newLit(arg.lineinfo & "  sizeof " & arg.repr & " ")
+  result = quote do:
+    let cSize = c_sizeof(`arg`)
+    let nimSize = sizeof(`arg`)
+    if cSize != nimSize:
+      echo `prefix`, cSize, " != ", nimSize
+      failed = true
+
+type
+  MyEnum {.pure.} = enum
+    ValueA
+    ValueB
+    ValueC
+
+  OtherEnum {.pure, size: 8.} = enum
+    ValueA
+    ValueB
+
+  Enum1 {.pure, size: 1.} = enum
+    ValueA
+    ValueB
+
+  Enum2 {.pure, size: 2.} = enum
+    ValueA
+    ValueB
+
+  Enum4 {.pure, size: 4.} = enum
+    ValueA
+    ValueB
+
+  Enum8 {.pure, size: 8.} = enum
+    ValueA
+    ValueB
+
+  # Must have more than 32 elements so that set[MyEnum33] will become compile to an int64.
+  MyEnum33 {.pure.} = enum
+    Value1, Value2, Value3, Value4, Value5, Value6,
+    Value7, Value8, Value9, Value10, Value11, Value12,
+    Value13, Value14, Value15, Value16, Value17, Value18,
+    Value19, Value20, Value21, Value22, Value23, Value24,
+    Value25, Value26, Value27, Value28, Value29, Value30,
+    Value31, Value32, Value33
+
+proc transformObjectconfigPacked(arg: NimNode): NimNode =
+  let debug = arg.kind == nnkPragmaExpr
+
+  if arg.eqIdent("objectconfig"):
+    result = ident"packed"
+  else:
+    result = copyNimNode(arg)
+    for child in arg:
+      result.add transformObjectconfigPacked(child)
+
+proc removeObjectconfig(arg: NimNode): NimNode =
+  if arg.kind == nnkPragmaExpr and arg[1][0].eqIdent "objectconfig":
+    result = arg[0]
+  else:
+    result = copyNimNode(arg)
+    for child in arg:
+      result.add removeObjectconfig(child)
+
+macro testinstance(body: untyped): untyped =
+  let bodyPure = removeObjectconfig(body)
+  let bodyPacked = transformObjectconfigPacked(body)
+
+  result = quote do:
+    proc pureblock(): void =
+      const usePacked {.inject.} = false
+      `bodyPure`
+
+    pureblock()
+
+    proc packedblock(): void =
+      const usePacked {.inject.} = true
+      `bodyPacked`
+
+    packedblock()
+
+proc testPrimitiveTypes(): void =
+  testAlign(pointer)
+  testAlign(int)
+  testAlign(uint)
+  testAlign(int8)
+  testAlign(int16)
+  testAlign(int32)
+  testAlign(int64)
+  testAlign(uint8)
+  testAlign(uint16)
+  testAlign(uint32)
+  testAlign(uint64)
+  testAlign(float)
+  testAlign(float32)
+  testAlign(float64)
+
+  testAlign(MyEnum)
+  testAlign(OtherEnum)
+  testAlign(Enum1)
+  testAlign(Enum2)
+  testAlign(Enum4)
+  testAlign(Enum8)
+
+testPrimitiveTypes()
+
+testinstance:
+  type
+
+    EnumObjectA  {.objectconfig.} = object
+      a : Enum1
+      b : Enum2
+      c : Enum4
+      d : Enum8
+
+    EnumObjectB  {.objectconfig.} = object
+      a : Enum8
+      b : Enum4
+      c : Enum2
+      d : Enum1
+
+    TrivialType  {.objectconfig.} = object
+      x,y,z: int8
+
+    SimpleAlignment {.objectconfig.} = object
+      # behaves differently on 32bit Windows and 32bit Linux
+      a,b: int8
+      c: int64
+
+    AlignAtEnd {.objectconfig.} = object
+      a: int64
+      b,c: int8
+
+    SimpleBranch {.objectconfig.} = object
+      case kind: MyEnum
+      of MyEnum.ValueA:
+        a: int16
+      of MyEnum.ValueB:
+        b: int32
+      of MyEnum.ValueC:
+        c: int64
+
+    PaddingBeforeBranchA {.objectconfig.} = object
+      cause: int8
+      case kind: MyEnum
+      of MyEnum.ValueA:
+        a: int16
+      of MyEnum.ValueB:
+        b: int32
+      of MyEnum.ValueC:
+        c: int64
+
+    PaddingBeforeBranchB {.objectconfig.} = object
+      cause: int8
+      case kind: MyEnum
+      of MyEnum.ValueA:
+        a: int8
+      of MyEnum.ValueB:
+        b: int16
+      of MyEnum.ValueC:
+        c: int32
+
+    PaddingAfterBranch {.objectconfig.} = object
+      case kind: MyEnum
+      of MyEnum.ValueA:
+        a: int8
+      of MyEnum.ValueB:
+        b: int16
+      of MyEnum.ValueC:
+        c: int32
+      cause: int64
+
+    RecursiveStuff {.objectconfig.} = object
+      case kind: MyEnum    # packedOffset:    0
+      of MyEnum.ValueA:    # packedOffset:
+        a: int16           # packedOffset:    1
+      of MyEnum.ValueB:    # packedOffset:
+        b: int32           # packedOffset:    1
+      of MyEnum.ValueC:    # packedOffset:
+        case kind2: MyEnum # packedOffset:    1
+        of MyEnum.ValueA:  # packedOffset:
+          ca1: int8
+          ca2: int32
+        of MyEnum.ValueB:  # packedOffset:
+          cb: int32        # packedOffset:    2
+        of MyEnum.ValueC:  # packedOffset:
+          cc: int64        # packedOffset:    2
+        d1: int8
+        d2: int64
+
+    Foobar {.objectconfig.} = object
+      case kind: OtherEnum
+      of OtherEnum.ValueA:
+        a: uint8
+      of OtherEnum.ValueB:
+        b: int8
+      c: int8
+
+    PaddingOfSetEnum33 {.objectconfig.} = object
+      cause: int8
+      theSet: set[MyEnum33]
+
+    Bazing {.objectconfig.} = object of RootObj
+      a: int64
+      # TODO test on 32 bit system
+      # only there the object header is smaller than the first member
+
+    InheritanceA {.objectconfig.} = object of RootObj
+      a: char
+
+    InheritanceB {.objectconfig.} = object of InheritanceA
+      b: char
+
+    InheritanceC {.objectconfig.} = object of InheritanceB
+      c: char
+
+    # from issue 4763
+    GenericObject[T] {.objectconfig.} = object
+      a: int32
+      b: T
+
+    # this type mixes `packed` with `align`.
+    MyCustomAlignPackedObject {.objectconfig.} = object
+      a: char
+      b {.align: 32.}: int32 # align overrides `packed` for this field.
+      c: char
+      d: int32  # unaligned
+
+    Kind = enum
+      K1, K2
+  
+    AnotherEnum = enum
+      X1, X2, X3
+
+    MyObject = object
+      s: string
+      case k: Kind
+      of K1: nil
+      of K2:
+          x: float
+          y: int32
+      z: AnotherEnum
+
+    Stack[N: static int, T: object] = object
+      pad: array[128 - sizeof(array[N, ptr T]) - sizeof(int) - sizeof(pointer), byte]
+      stack: array[N, ptr T]
+      len*: int
+      rawMem: ptr array[N, T]
+
+    Stack2[T: object] = object
+      pad: array[128 - sizeof(array[sizeof(T), ptr T]), byte]
+    
+
+  const trivialSize = sizeof(TrivialType) # needs to be able to evaluate at compile time
+
+  proc main(): void =
+    var t : TrivialType
+    var a : SimpleAlignment
+    var b : AlignAtEnd
+    var c : SimpleBranch
+    var d : PaddingBeforeBranchA
+    var e : PaddingBeforeBranchB
+    var f : PaddingAfterBranch
+    var g : RecursiveStuff
+    var ro : RootObj
+    var go : GenericObject[int64]
+    var po : PaddingOfSetEnum33
+    var capo: MyCustomAlignPackedObject
+    var issue15516: MyObject
+    var issue12636_1: Stack[5, MyObject]
+    var issue12636_2: Stack2[MyObject]
+
+    var
+      e1: Enum1
+      e2: Enum2
+      e4: Enum4
+      e8: Enum8
+    var
+      eoa: EnumObjectA
+      eob: EnumObjectB
+
+    testAlign(SimpleAlignment)
+
+    # sanity check to ensure both branches are actually executed
+    when usePacked:
+      doAssert sizeof(SimpleAlignment) == 10
+    else:
+      doAssert sizeof(SimpleAlignment) > 10
+
+    testSizeAlignOf(t,a,b,c,d,e,f,g,ro,go,po, e1, e2, e4, e8, eoa, eob, capo, issue15516, issue12636_1, issue12636_2)
+
+    type
+      WithBitsize {.objectconfig.} = object
+        bitfieldA {.bitsize: 16.}: uint32
+        bitfieldB {.bitsize: 16.}: uint32
+
+    var wbs: WithBitsize
+    testSize(wbs)
+
+    testOffsetOf(TrivialType, x)
+    testOffsetOf(TrivialType, y)
+    testOffsetOf(TrivialType, z)
+
+    testOffsetOf(SimpleAlignment, a)
+    testOffsetOf(SimpleAlignment, b)
+    testOffsetOf(SimpleAlignment, c)
+
+    testOffsetOf(AlignAtEnd, a)
+    testOffsetOf(AlignAtEnd, b)
+    testOffsetOf(AlignAtEnd, c)
+
+    testOffsetOf(SimpleBranch, a)
+    testOffsetOf(SimpleBranch, b)
+    testOffsetOf(SimpleBranch, c)
+
+    testOffsetOf(PaddingBeforeBranchA, cause)
+    testOffsetOf(PaddingBeforeBranchA, a)
+    testOffsetOf(PaddingBeforeBranchB, cause)
+    testOffsetOf(PaddingBeforeBranchB, a)
+
+    testOffsetOf(PaddingAfterBranch, a)
+    testOffsetOf(PaddingAfterBranch, cause)
+
+    testOffsetOf(Foobar, c)
+
+    testOffsetOf(PaddingOfSetEnum33, cause)
+    testOffsetOf(PaddingOfSetEnum33, theSet)
+
+    testOffsetOf(Bazing, a)
+    testOffsetOf(InheritanceA, a)
+    testOffsetOf(InheritanceB, b)
+    testOffsetOf(InheritanceC, c)
+
+    testOffsetOf(EnumObjectA, a)
+    testOffsetOf(EnumObjectA, b)
+    testOffsetOf(EnumObjectA, c)
+    testOffsetOf(EnumObjectA, d)
+    testOffsetOf(EnumObjectB, a)
+    testOffsetOf(EnumObjectB, b)
+    testOffsetOf(EnumObjectB, c)
+    testOffsetOf(EnumObjectB, d)
+
+    testOffsetOf(RecursiveStuff, kind)
+    testOffsetOf(RecursiveStuff, a)
+    testOffsetOf(RecursiveStuff, b)
+    testOffsetOf(RecursiveStuff, kind2)
+    testOffsetOf(RecursiveStuff, ca1)
+    testOffsetOf(RecursiveStuff, ca2)
+    testOffsetOf(RecursiveStuff, cb)
+    testOffsetOf(RecursiveStuff, cc)
+    testOffsetOf(RecursiveStuff, d1)
+    testOffsetOf(RecursiveStuff, d2)
+
+    testOffsetOf(MyCustomAlignPackedObject, a)
+    testOffsetOf(MyCustomAlignPackedObject, b)
+    testOffsetOf(MyCustomAlignPackedObject, c)
+    testOffsetOf(MyCustomAlignPackedObject, d)
+
+    echo "body executed" # sanity check to ensure this logic isn't skipped entirely
+
+
+  main()
+
+{.emit: """/*TYPESECTION*/
+typedef struct{
+  float a; float b;
+} Foo;
+""".}
+
+type
+  Foo {.importc.} = object
+
+  Bar = object
+    b: byte
+    foo: Foo
+
+assert sizeof(Bar) == 12
+
+# bug #10082
+type
+  A = int8        # change to int16 and get sizeof(C)==6
+  B = int16
+  C {.packed.} = object
+    d {.bitsize:  1.}: A
+    e {.bitsize:  7.}: A
+    f {.bitsize: 16.}: B
+
+assert sizeof(C) == 3
+
+
+type
+  MixedBitsize {.packed.} = object
+    a: uint32
+    b {.bitsize:  8.}: uint8
+    c {.bitsize:  1.}: uint8
+    d {.bitsize:  7.}: uint8
+    e {.bitsize: 16.}: uint16
+    f: uint32
+
+doAssert sizeof(MixedBitsize) == 12
+
+
+type
+  MyUnionType {.union.} = object
+    a: int32
+    b: float32
+
+  MyCustomAlignUnion {.union.} = object
+    c: char
+    a {.align: 32.}: int
+
+  MyCustomAlignObject = object
+    c: char
+    a {.align: 32.}: int
+
+doAssert sizeof(MyUnionType) == 4
+doAssert sizeof(MyCustomAlignUnion) == 32
+doAssert alignof(MyCustomAlignUnion) == 32
+doAssert sizeof(MyCustomAlignObject) == 64
+doAssert alignof(MyCustomAlignObject) == 32
+
+
+
+
+
+
+##########################################
+# bug #9794
+##########################################
+
+type
+  imported_double {.importc: "double".} = object
+
+  Pod = object
+    v* : imported_double
+    seed*: int32
+
+  Pod2 = tuple[v: imported_double, seed: int32]
+
+proc foobar() =
+  testAlign(Pod)
+  testSize(Pod)
+  testAlign(Pod2)
+  testSize(Pod2)
+  doAssert sizeof(Pod) == sizeof(Pod2)
+  doAssert alignof(Pod) == alignof(Pod2)
+foobar()
+
+if failed:
+  quit("FAIL")
+else:
+  echo "OK"
+
+##########################################
+# sizeof macros API
+##########################################
+
+import macros
+
+type
+  Vec2f = object
+    x,y: float32
+
+  Vec4f = object
+    x,y,z,w: float32
+
+  # this type is constructed to have no platform depended alignment.
+  ParticleDataA = object
+    pos, vel: Vec2f
+    birthday: float32
+    padding: float32
+    moreStuff: Vec4f
+
+const expected = [
+  # name size align offset
+  ("pos", 8, 4, 0),
+  ("vel", 8, 4, 8),
+  ("birthday", 4, 4, 16),
+  ("padding", 4, 4, 20),
+  ("moreStuff", 16, 4, 24)
+]
+
+macro typeProcessing(arg: typed): untyped =
+  let recList = arg.getTypeImpl[2]
+  recList.expectKind nnkRecList
+  for i, identDefs in recList:
+    identDefs.expectKind nnkIdentDefs
+    identDefs.expectLen 3
+    let sym = identDefs[0]
+    sym.expectKind nnkSym
+    doAssert expected[i][0] == sym.strVal
+    doAssert expected[i][1] == getSize(sym)
+    doAssert expected[i][2] == getAlign(sym)
+    doAssert expected[i][3] == getOffset(sym)
+
+  result = newCall(bindSym"echo", newLit("macros api OK"))
+
+proc main() =
+  var mylocal: ParticleDataA
+  typeProcessing(mylocal)
+
+main()
+
+# issue #11320 use UncheckedArray
+
+type
+  Payload = object
+    something: int8
+    vals: UncheckedArray[int32]
+
+proc payloadCheck() =
+  doAssert offsetOf(Payload, vals) == 4
+  doAssert sizeof(Payload) == 4
+
+payloadCheck()
+
+# offsetof tuple types
+
+type
+  MyTupleType = tuple
+    a: float64
+    b: float64
+    c: float64
+
+  MyOtherTupleType = tuple
+    a: float64
+    b: imported_double
+    c: float64
+
+  MyCaseObject = object
+    val1: imported_double
+    case kind: bool
+    of true:
+      val2,val3: float32
+    else:
+      val4,val5: int32
+
+doAssert offsetof(MyTupleType, a) == 0
+doAssert offsetof(MyTupleType, b) == 8
+doAssert offsetof(MyTupleType, c) == 16
+
+doAssert offsetof(MyOtherTupleType, a) == 0
+doAssert offsetof(MyOtherTupleType, b) == 8
+
+# The following expression can only work if the offsetof expression is
+# properly forwarded for the C code generator.
+doAssert offsetof(MyOtherTupleType, c) == 16
+doAssert offsetof(Bar, foo) == 4
+doAssert offsetof(MyCaseObject, val1) == 0
+doAssert offsetof(MyCaseObject, kind) == 8
+doAssert offsetof(MyCaseObject, val2) == 12
+doAssert offsetof(MyCaseObject, val3) == 16
+doAssert offsetof(MyCaseObject, val4) == 12
+doAssert offsetof(MyCaseObject, val5) == 16
+
+template reject(e) =
+  static: assert(not compiles(e))
+
+reject:
+  const off1 = offsetof(MyOtherTupleType, c)
+
+reject:
+  const off2 = offsetof(MyOtherTupleType, b)
+
+reject:
+  const off3 = offsetof(MyCaseObject, kind)
+
+
+type
+  MyPackedCaseObject {.packed.} = object
+    val1: imported_double
+    case kind: bool
+    of true:
+      val2,val3: float32
+    else:
+      val4,val5: int32
+
+# packed case object
+
+doAssert offsetof(MyPackedCaseObject, val1) == 0
+doAssert offsetof(MyPackedCaseObject, val2) == 9
+doAssert offsetof(MyPackedCaseObject, val3) == 13
+doAssert offsetof(MyPackedCaseObject, val4) == 9
+doAssert offsetof(MyPackedCaseObject, val5) == 13
+
+reject:
+  const off5 = offsetof(MyPackedCaseObject, val2)
+
+reject:
+  const off6 = offsetof(MyPackedCaseObject, val3)
+
+reject:
+  const off7 = offsetof(MyPackedCaseObject, val4)
+
+reject:
+  const off8 = offsetof(MyPackedCaseObject, val5)
+
+
+type
+  O0 = object
+  T0 = tuple[]
+
+doAssert sizeof(O0) == 1
+doAssert sizeof(T0) == 1
+
+
+type
+  # this thing may not have padding bytes at the end
+  PackedUnion* {.union, packed.} = object
+    a*: array[11, byte]
+    b*: int64
+
+doAssert sizeof(PackedUnion) == 11
+doAssert alignof(PackedUnion) == 1
+
+# bug #22553
+type
+  ChunkObj = object
+    data: UncheckedArray[byte]
+
+doAssert sizeof(ChunkObj) == 1
+doAssert offsetOf(ChunkObj, data) == 1
diff --git a/tests/misc/tsizeof2.nim b/tests/misc/tsizeof2.nim
new file mode 100644
index 000000000..da28de508
--- /dev/null
+++ b/tests/misc/tsizeof2.nim
@@ -0,0 +1,17 @@
+discard """
+errormsg: "'sizeof' requires '.importc' types to be '.completeStruct'"
+line: 9
+"""
+
+type
+  MyStruct {.importc: "MyStruct".} = object
+
+const i = sizeof(MyStruct)
+
+echo i
+
+# bug #9868
+proc foo(a: SomeInteger): array[sizeof(a), byte] =
+  discard
+
+discard foo(1)
diff --git a/tests/misc/tsizeof3.nim b/tests/misc/tsizeof3.nim
new file mode 100644
index 000000000..f0ba8c4d0
--- /dev/null
+++ b/tests/misc/tsizeof3.nim
@@ -0,0 +1,58 @@
+discard """
+output: '''
+@[48, 57]
+'''
+"""
+# bug #7238
+
+type ByteArrayBE*[N: static[int]] = array[N, byte]
+  ## A byte array that stores bytes in big-endian order
+
+proc toByteArrayBE*[T: SomeInteger](num: T): ByteArrayBE[sizeof(T)]=
+  ## Convert an integer (in native host endianness) to a big-endian byte array
+  ## Notice the result type
+  const N = T.sizeof
+  for i in 0 ..< N:
+    result[i] = byte((num shr ((N-1-i) * 8)) and high(int8))
+
+let a = 12345.toByteArrayBE
+echo a[^2 .. ^1] # to make it work on both 32-bit and 64-bit
+
+#---------------------------------------------------------------------
+
+type
+  Payload = object
+    something: int
+    vals: UncheckedArray[int]
+
+static:
+  doAssert(compiles(offsetOf(Payload, vals)))
+
+
+type
+  GoodboySave* {.bycopy.} = object
+    saveCount: uint8
+    savePoint: uint16
+    shards: uint32
+    friendCount: uint8
+    friendCards: set[0..255]
+    locationsKnown: set[0..127]
+    locationsUnlocked: set[0..127]
+    pickupsObtained: set[0..127]
+    pickupsUsed: set[0..127]
+    pickupCount: uint8
+
+block: # bug #20914
+  block:
+    proc csizeof[T](a: T): int {.importc:"sizeof", nodecl.}
+
+    var s: GoodboySave
+    doAssert sizeof(s) == 108
+    doAssert csizeof(s) == static(sizeof(s))
+
+  block:
+    proc calignof[T](a: T): int {.importc:"alignof", header: "<stdalign.h>".}
+
+    var s: set[0..256]
+    doAssert alignof(s) == 1
+    doAssert calignof(s) == static(alignof(s))
diff --git a/tests/misc/tsizeof4.nim b/tests/misc/tsizeof4.nim
new file mode 100644
index 000000000..94c08ba39
--- /dev/null
+++ b/tests/misc/tsizeof4.nim
@@ -0,0 +1,20 @@
+discard """
+disabled: "arm64"
+"""
+
+# bug #11792
+type
+  m256d {.importc: "__m256d", header: "immintrin.h".} = object
+
+  MyKind = enum
+    k1, k2, k3
+
+  MyTypeObj = object
+    kind: MyKind
+    x: int
+    amount: UncheckedArray[m256d]
+
+
+# The sizeof(MyTypeObj) is not equal to (sizeof(int) + sizeof(MyKind)) due to
+# alignment requirement of m256d, make sure Nim understands that
+doAssert(sizeof(MyTypeObj) > sizeof(int) + sizeof(MyKind))
diff --git a/tests/misc/tsortdev.nim b/tests/misc/tsortdev.nim
new file mode 100644
index 000000000..6a290577b
--- /dev/null
+++ b/tests/misc/tsortdev.nim
@@ -0,0 +1,58 @@
+discard """
+  output: "done tsortdev"
+"""
+
+import algorithm, strutils
+
+proc cmpPlatforms(a, b: string): int =
+  if a == b: return 0
+  var dashes = a.split('-')
+  var dashes2 = b.split('-')
+  if dashes[0] == dashes2[0]:
+    if dashes[1] == dashes2[1]: return system.cmp(a,b)
+    case dashes[1]
+    of "x86":
+      return 1
+    of "x86_64":
+      if dashes2[1] == "x86": return -1
+      else: return 1
+    of "ppc64":
+      if dashes2[1] == "x86" or dashes2[1] == "x86_64": return -1
+      else: return 1
+    else:
+      return system.cmp(dashes[1], dashes2[1])
+  else:
+    case dashes[0]
+    of "linux":
+      return 1
+    of "windows":
+      if dashes2[0] == "linux": return -1
+      else: return 1
+    of "macosx":
+      if dashes2[0] == "linux" or dashes2[0] == "windows": return -1
+      else: return 1
+    else:
+      if dashes2[0] == "linux" or dashes2[0] == "windows" or
+         dashes2[0] == "macosx": return -1
+      else:
+        return system.cmp(a, b)
+
+proc sorted[T](a: openArray[T]): bool =
+  result = true
+  for i in 0 ..< a.high:
+    if cmpPlatforms(a[i], a[i+1]) > 0:
+      echo "Out of order: ", a[i], " ", a[i+1]
+      result = false
+
+proc main() =
+  var testData = @["netbsd-x86_64", "windows-x86", "linux-x86_64", "linux-x86",
+    "linux-ppc64", "macosx-x86-1058", "macosx-x86-1068"]
+
+  sort(testData, cmpPlatforms)
+
+  doAssert sorted(testData)
+
+for i in 0..1_000:
+  main()
+
+echo "done tsortdev"
diff --git a/tests/misc/tstrace.nim b/tests/misc/tstrace.nim
new file mode 100644
index 000000000..00af0af69
--- /dev/null
+++ b/tests/misc/tstrace.nim
@@ -0,0 +1,36 @@
+discard """
+exitcode: 1
+output: '''
+Traceback (most recent call last)
+tstrace.nim(36)          tstrace
+tstrace.nim(28)          recTest
+tstrace.nim(28)          recTest
+tstrace.nim(28)          recTest
+tstrace.nim(28)          recTest
+tstrace.nim(28)          recTest
+tstrace.nim(28)          recTest
+tstrace.nim(28)          recTest
+tstrace.nim(28)          recTest
+tstrace.nim(28)          recTest
+tstrace.nim(28)          recTest
+tstrace.nim(31)          recTest
+SIGSEGV: Illegal storage access. (Attempt to read from nil?)
+'''
+"""
+
+# Test the new stacktraces (great for debugging!)
+
+{.push stack_trace: on.}
+
+proc recTest(i: int) =
+  # enter
+  if i < 10:
+    recTest(i+1)
+  else: # should printStackTrace()
+    var p: ptr int = nil
+    p[] = 12
+  # leave
+
+{.pop.}
+
+recTest(0)
diff --git a/tests/misc/tstrange.nim b/tests/misc/tstrange.nim
new file mode 100644
index 000000000..f8c063240
--- /dev/null
+++ b/tests/misc/tstrange.nim
@@ -0,0 +1,28 @@
+discard """
+output: '''
+hallo40
+1
+2
+'''
+"""
+# test for extremely strange bug
+
+proc ack(x: int, y: int): int =
+  if x != 0:
+    if y != 5:
+      return y
+    return x
+  return x+y
+
+proc gen[T](a: T) =
+  write(stdout, a)
+
+
+gen("hallo")
+write(stdout, ack(5, 4))
+#OUT hallo4
+
+# bug #1442
+let h=3
+for x in 0 ..< h.int:
+  echo x
diff --git a/tests/misc/tstrdesc.nim b/tests/misc/tstrdesc.nim
new file mode 100644
index 000000000..1479fcda8
--- /dev/null
+++ b/tests/misc/tstrdesc.nim
@@ -0,0 +1,14 @@
+var
+  x: array[0..2, int]
+
+x = [0, 1, 2]
+
+type
+  TStringDesc {.final.} = object
+    len, space: int # len and space without counting the terminating zero
+    data: array[0..0, char] # for the '\0' character
+
+var
+  emptyString {.exportc: "emptyString".}: TStringDesc
+
+
diff --git a/tests/misc/tstrdist.nim b/tests/misc/tstrdist.nim
new file mode 100644
index 000000000..53ace2fae
--- /dev/null
+++ b/tests/misc/tstrdist.nim
@@ -0,0 +1,26 @@
+# compute the edit distance between two strings
+
+proc editDistance(a, b: string): int =
+  var
+    c: seq[int]
+    n = a.len
+    m = b.len
+  newSeq(c, (n+1)*(m+1))
+  for i in 0..n:
+    c[i*n] = i # [i,0]
+  for j in 0..m:
+    c[j] = j # [0,j]
+
+  for i in 1..n:
+    for j in 1..m:
+      var x = c[(i-1)*n + j]+1
+      var y = c[i*n + j-1]+1
+      var z: int
+      if a[i-1] == b[j-1]:
+        z = c[(i-1)*n + j-1]
+      else:
+        z = c[(i-1)*n + j-1]+1
+      c[(i-1)*n + (j-1)] = min(x,min(y,z))
+  return c[n*m]
+
+doAssert editDistance("abc", "abd") == 3
diff --git a/tests/misc/ttlsemulation.nim b/tests/misc/ttlsemulation.nim
new file mode 100644
index 000000000..767a9bd4e
--- /dev/null
+++ b/tests/misc/ttlsemulation.nim
@@ -0,0 +1,76 @@
+discard """
+  disabled: i386
+  matrix: "-d:nimTtlsemulationCase1 --threads --tlsEmulation:on; -d:nimTtlsemulationCase2 --threads --tlsEmulation:off; -d:nimTtlsemulationCase3 --threads"
+  targets: "c cpp"
+"""
+
+#[
+tests for: `.cppNonPod`, `--tlsEmulation`
+]#
+
+import std/sugar
+
+block:
+  # makes sure the logic in config/nim.cfg or testament doesn't interfere with `--tlsEmulation` so we test the right thing.
+  when defined(nimTtlsemulationCase1):
+    doAssert compileOption("tlsEmulation")
+  elif defined(nimTtlsemulationCase2):
+    doAssert not compileOption("tlsEmulation")
+  elif defined(nimTtlsemulationCase3):
+    when defined(osx):
+      doAssert not compileOption("tlsEmulation")
+  else:
+    doAssert false
+
+block:
+  proc main1(): int =
+    var g0 {.threadvar.}: int
+    g0.inc
+    g0
+  let s = collect:
+    for i in 0..<3: main1()
+  doAssert s == @[1,2,3]
+
+when defined(cpp): # bug #16752
+  when defined(windows) and defined(nimTtlsemulationCase2):
+    discard # xxx this failed with exitCode 1
+  else:
+    type Foo1 {.importcpp: "Foo1", header: "mtlsemulation.h".} = object
+      x: cint
+    type Foo2 {.cppNonPod, importcpp: "Foo2", header: "mtlsemulation.h".} = object
+      x: cint
+
+    var ctorCalls {.importcpp.}: cint
+    var dtorCalls {.importcpp.}: cint
+    type Foo3 {.cppNonPod, importcpp: "Foo3", header: "mtlsemulation.h".} = object
+      x: cint
+
+    proc sub(i: int) =
+      var g1 {.threadvar.}: Foo1
+      var g2 {.threadvar.}: Foo2
+      var g3 {.threadvar.}: Foo3
+      discard g1
+      discard g2
+
+      # echo (g3.x, ctorCalls, dtorCalls)
+      when compileOption("tlsEmulation"):
+        # xxx bug
+        discard
+      else:
+        doAssert g3.x.int == 10 + i
+        doAssert ctorCalls == 2
+      doAssert dtorCalls == 1
+      g3.x.inc
+
+    proc main() =
+      doAssert ctorCalls == 0
+      doAssert dtorCalls == 0
+      block:
+        var f3: Foo3
+        doAssert f3.x == 10
+      doAssert ctorCalls == 1
+      doAssert dtorCalls == 1
+
+      for i in 0..<3:
+        sub(i)
+    main()
diff --git a/tests/misc/tvarious.nim b/tests/misc/tvarious.nim
new file mode 100644
index 000000000..191107a87
--- /dev/null
+++ b/tests/misc/tvarious.nim
@@ -0,0 +1,72 @@
+discard """
+action: compile
+"""
+
+# Test various aspects
+
+# bug #572
+var a=12345678901'u64
+
+var x = (x: 42, y: (a: 8, z: 10))
+echo x.y
+
+import
+  mvarious
+
+type
+  PA = ref TA
+  PB = ref TB
+
+  TB = object
+    a: PA
+
+  TA = object
+    b: TB
+    x: int
+
+proc getPA(): PA =
+  var
+    b: bool
+  b = not false
+  return nil
+
+# bug #501
+proc f(): int = 54
+
+var
+  global: int
+
+var
+  s: string
+  i: int
+  r: TA
+
+r.b.a.x = 0
+global = global + 1
+exportme()
+write(stdout, "Hallo wie heißt du? ")
+write(stdout, getPA().x)
+s = readLine(stdin)
+i = 0
+while i < s.len:
+  if s[i] == 'c': write(stdout, "'c' in deinem Namen gefunden\n")
+  i = i + 1
+
+write(stdout, "Du heißt " & s)
+
+# bug #544
+
+# yay, fails again
+type Bar [T; I:range] = array[I, T]
+proc foo*[T; I:range](a, b: Bar[T, I]): Bar[T, I] =
+  when len(a) != 3:
+    # Error: constant expression expected
+    {.fatal:"Dimensions have to be 3".}
+  #...
+block:
+  var a, b: Bar[int, range[0..2]]
+  discard foo(a, b)
+
+# bug #1788
+
+echo "hello" & char(ord(' ')) & "world"
diff --git a/tests/misc/tvarious1.nim b/tests/misc/tvarious1.nim
new file mode 100644
index 000000000..9c912ee8e
--- /dev/null
+++ b/tests/misc/tvarious1.nim
@@ -0,0 +1,58 @@
+discard """
+output: '''
+1
+0
+Whopie
+12
+1.7'''
+"""
+
+echo len([1_000_000]) #OUT 1
+
+type
+  TArray = array[0..3, int]
+  TVector = distinct array[0..3, int]
+proc `[]`(v: TVector; idx: int): int = TArray(v)[idx]
+var v: TVector
+echo v[2]
+
+# bug #569
+
+import deques
+
+type
+  TWidget = object
+    names: Deque[string]
+
+var w = TWidget(names: initDeque[string]())
+
+addLast(w.names, "Whopie")
+
+for n in w.names: echo(n)
+
+# bug #681
+
+type TSomeRange = object
+  hour: range[0..23]
+
+var value: string
+var val12 = TSomeRange(hour: 12)
+
+value = $(if val12.hour > 12: val12.hour - 12 else: val12.hour)
+echo value
+
+# bug #1334
+
+var ys = @[4.1, 5.6, 7.2, 1.7, 9.3, 4.4, 3.2]
+#var x = int(ys.high / 2) #echo ys[x] # Works
+echo ys[int(ys.high / 2)] # Doesn't work
+
+
+# bug #19680
+var here = ""
+when stderr is static:
+  doAssert false
+else:
+  here = "works"
+
+doAssert here == "works"
diff --git a/tests/misc/tvarnums.nim b/tests/misc/tvarnums.nim
new file mode 100644
index 000000000..498099c49
--- /dev/null
+++ b/tests/misc/tvarnums.nim
@@ -0,0 +1,139 @@
+discard """
+  output: "Success!"
+"""
+# Test variable length binary integers
+
+import
+  strutils
+
+type
+  TBuffer = array[0..10, uint8]
+
+proc toVarNum(x: int32, b: var TBuffer) =
+  # encoding: first bit indicates end of number (0 if at end)
+  # second bit of the first byte denotes the sign (1 --> negative)
+  var a = x
+  if x != low(x):
+    # low(int) is a special case,
+    # because abs() does not work here!
+    # we leave x as it is and use the check >% instead of >
+    # for low(int) this is needed and positive numbers are not affected
+    # anyway
+    a = abs(x)
+  # first 6 bits:
+  b[0] = uint8(ord(a >% 63'i32) shl 7 or (ord(x < 0'i32) shl 6) or (int(a) and 63))
+  a = (a shr 6'i32) and 0x03ffffff # skip first 6 bits
+  var i = 1
+  while a != 0'i32:
+    b[i] = uint8(ord(a >% 127'i32) shl 7 or (int(a) and 127))
+    inc(i)
+    a = a shr 7'i32
+
+proc toVarNum64(x: int64, b: var TBuffer) =
+  # encoding: first bit indicates end of number (0 if at end)
+  # second bit of the first byte denotes the sign (1 --> negative)
+  var a = x
+  if x != low(x):
+    # low(int) is a special case,
+    # because abs() does not work here!
+    # we leave x as it is and use the check >% instead of >
+    # for low(int) this is needed and positive numbers are not affected
+    # anyway
+    a = abs(x)
+  # first 6 bits:
+  b[0] = uint8(ord(a >% 63'i64) shl 7 or (ord(x < 0'i64) shl 6) or int(a and 63))
+  a = (a shr 6) and 0x03ffffffffffffff # skip first 6 bits
+  var i = 1
+  while a != 0'i64:
+    b[i] = uint8(ord(a >% 127'i64) shl 7 or int(a and 127))
+    inc(i)
+    a = a shr 7
+
+proc toNum64(b: TBuffer): int64 =
+  # treat first byte different:
+  result = int64(b[0]) and 63
+  var
+    i = 0
+    Shift = 6'i64
+  while (int(b[i]) and 128) != 0:
+    inc(i)
+    result = result or ((int64(b[i]) and 127) shl Shift)
+    inc(Shift, 7)
+  if (int(b[0]) and 64) != 0: # sign bit set?
+    result = not result +% 1
+    # this is the same as ``- result``
+    # but gives no overflow error for low(int)
+
+proc toNum(b: TBuffer): int32 =
+  # treat first byte different:
+  result = int32(b[0]) and 63
+  var
+    i = 0
+    Shift = 6'i32
+  while (int(b[i]) and 128) != 0:
+    inc(i)
+    result = result or ((int32(b[i]) and 127'i32) shl Shift)
+    Shift = Shift + 7'i32
+  if (int(b[0]) and (1 shl 6)) != 0: # sign bit set?
+    result = (not result) +% 1'i32
+    # this is the same as ``- result``
+    # but gives no overflow error for low(int)
+
+proc toBinary(x: int64): string =
+  result = newString(64)
+  for i in 0..63:
+    result[63-i] = chr((int(x shr i) and 1) + ord('0'))
+
+proc t64(i: int64) =
+  var
+    b: TBuffer
+  toVarNum64(i, b)
+  var x = toNum64(b)
+  if x != i:
+    writeLine(stdout, $i)
+    writeLine(stdout, toBinary(i))
+    writeLine(stdout, toBinary(x))
+
+proc t32(i: int32) =
+  var
+    b: TBuffer
+  toVarNum(i, b)
+  var x = toNum(b)
+  if x != i:
+    writeLine(stdout, toBinary(i))
+    writeLine(stdout, toBinary(x))
+
+proc tm(i: int32) =
+  var
+    b: TBuffer
+  toVarNum64(i, b)
+  var x = toNum(b)
+  if x != i:
+    writeLine(stdout, toBinary(i))
+    writeLine(stdout, toBinary(x))
+
+t32(0)
+t32(1)
+t32(-1)
+t32(-100_000)
+t32(100_000)
+t32(low(int32))
+t32(high(int32))
+
+t64(low(int64))
+t64(high(int64))
+t64(0)
+t64(-1)
+t64(1)
+t64(1000_000)
+t64(-1000_000)
+
+tm(0)
+tm(1)
+tm(-1)
+tm(-100_000)
+tm(100_000)
+tm(low(int32))
+tm(high(int32))
+
+writeLine(stdout, "Success!") #OUT Success!
diff --git a/tests/misc/tvcc.nim b/tests/misc/tvcc.nim
new file mode 100644
index 000000000..10533729c
--- /dev/null
+++ b/tests/misc/tvcc.nim
@@ -0,0 +1,9 @@
+discard """
+  matrix: "--cc:vcc"
+  disabled: "linux"
+  disabled: "bsd"
+  disabled: "osx"
+  disabled: "unix"
+  disabled: "posix"
+"""
+doAssert true
diff --git a/tests/misc/åäö.nim b/tests/misc/åäö.nim
new file mode 100644
index 000000000..b3caa9861
--- /dev/null
+++ b/tests/misc/åäö.nim
@@ -0,0 +1,11 @@
+discard """
+    action: run
+"""
+
+# Tests that module names can contain multi byte characters
+
+let a = 1
+doAssert åäö.a == 1
+
+proc inlined() {.inline.} = discard
+inlined()
\ No newline at end of file