8 files changed, 252 insertions, 0 deletions
diff --git a/tests/openarray/t6163.nim b/tests/openarray/t6163.nim
new file mode 100644
index 000000000..0e9d4e0e4
--- /dev/null
+++ b/tests/openarray/t6163.nim
@@ -0,0 +1,17 @@
+discard """
+  exitcode: 0
+  targets: "c cpp js"
+  output: '''19316
+'''
+"""
+
+from sugar import `->`, `=>`
+from math import `^`, sum
+from sequtils import filter, map, toSeq
+
+proc f: int =
+  toSeq(10..<10_000).filter(a => a == ($a).map(d => (d.ord-'0'.ord).int^4).sum).sum
+
+var a = f()
+
+echo a
diff --git a/tests/openarray/t8259.nim b/tests/openarray/t8259.nim
new file mode 100644
index 000000000..283c6cd02
--- /dev/null
+++ b/tests/openarray/t8259.nim
@@ -0,0 +1,7 @@
+discard """
+  errormsg: "invalid type: 'openArray[int]' for result"
+  line: 6
+"""
+
+proc foo(a: openArray[int]):auto = a
+echo foo(toOpenArray([1, 2], 0, 2))
diff --git a/tests/openarray/topena1.nim b/tests/openarray/topena1.nim
new file mode 100644
index 000000000..380c57f2a
--- /dev/null
+++ b/tests/openarray/topena1.nim
@@ -0,0 +1,9 @@
+discard """
+  errormsg: "invalid type"
+  file: "topena1.nim"
+  line: 9
+"""
+# Tests a special bug
+
+var
+  x: ref openArray[string] #ERROR_MSG invalid type
diff --git a/tests/openarray/topenarray.nim b/tests/openarray/topenarray.nim
new file mode 100644
index 000000000..25b983651
--- /dev/null
+++ b/tests/openarray/topenarray.nim
@@ -0,0 +1,88 @@
+discard """
+  targets: "c cpp js"
+"""
+
+proc fn1[T](a: openArray[T]): seq[T] =
+  for ai in a: result.add ai
+
+proc fn2[T](a: var openArray[T]): seq[T] =
+  for ai in a: result.add ai
+
+proc fn3[T](a: var openArray[T]) =
+  for i, ai in mpairs(a): ai = i * 10
+
+proc main =
+  var a = [1,2,3,4,5]
+
+  doAssert fn1(a.toOpenArray(1,3)) == @[2,3,4]
+
+  doAssert fn2(toOpenArray(a, 1, 3)) == @[2,3,4]
+  doAssert fn2(a.toOpenArray(1,3)) == @[2,3,4]
+
+  fn3(a.toOpenArray(1,3))
+  when defined(js): discard # xxx bug #15952: `a` left unchanged
+  else: doAssert a == [1, 0, 10, 20, 5]
+
+  block: # bug #12521
+    block:
+      type slice[T] = openArray[T]
+
+      # Proc using that alias
+      proc testing(sl: slice[int]): seq[int] =
+        for item in sl:
+          result.add item
+
+      let mySeq = @[1, 2, 3, 4, 5, 6, 7, 8, 9]
+      doAssert testing(mySeq) == mySeq
+      doAssert testing(mySeq[2..^2]) == mySeq[2..^2]
+
+    block:
+      type slice = openArray[int]
+
+      # Proc using that alias
+      proc testing(sl: slice): seq[int] =
+        for item in sl:
+          result.add item
+
+      let mySeq = @[1, 2, 3, 4, 5, 6, 7, 8, 9]
+      doAssert testing(mySeq) == mySeq
+      doAssert testing(mySeq[2..^2]) == mySeq[2..^2]
+
+  block: # bug #23321
+    block:
+      proc foo(x: openArray[int]) =
+        doAssert x[0] == 0
+
+      var d = new array[1, int]
+      foo d[].toOpenArray(0, 0)
+
+    block:
+      proc foo(x: openArray[int]) =
+        doAssert x[0] == 0
+
+      proc task(x: var array[1, int]): var array[1, int] =
+        result = x
+      var d: array[1, int]
+      foo task(d).toOpenArray(0, 0)
+
+    block:
+      proc foo(x: openArray[int]) =
+        doAssert x[0] == 0
+
+      proc task(x: var array[1, int]): lent array[1, int] =
+        result = x
+      var d: array[1, int]
+      foo task(d).toOpenArray(0, 0)
+
+    block:
+      proc foo(x: openArray[int]) =
+        doAssert x[0] == 0
+
+      proc task(x: var array[1, int]): ptr array[1, int] =
+        result = addr x
+      var d: array[1, int]
+      foo task(d)[].toOpenArray(0, 0)
+
+
+main()
+static: main()
diff --git a/tests/openarray/topenarrayrepr.nim b/tests/openarray/topenarrayrepr.nim
new file mode 100644
index 000000000..fc40d88c3
--- /dev/null
+++ b/tests/openarray/topenarrayrepr.nim
@@ -0,0 +1,13 @@
+discard """
+  output: "5 - [1]"
+"""
+type
+  TProc = proc (n: int, m: openArray[int64]) {.nimcall.}
+
+proc Foo(x: int, P: TProc) =
+  P(x, [ 1'i64 ])
+
+proc Bar(n: int, m: openArray[int64]) =
+  echo($n & " - " & repr(m))
+
+Foo(5, Bar) #OUT 5 - [1]
diff --git a/tests/openarray/topenlen.nim b/tests/openarray/topenlen.nim
new file mode 100644
index 000000000..164241b85
--- /dev/null
+++ b/tests/openarray/topenlen.nim
@@ -0,0 +1,15 @@
+discard """
+  output: "7"
+"""
+# Tests a special bug
+
+proc choose(b: openArray[string]): string = return b[0]
+
+proc p(a, b: openArray[string]): int =
+  result = a.len + b.len - 1
+  for j in 0 .. a.len: inc(result)
+  discard choose(a)
+  discard choose(b)
+
+discard choose(["sh", "-c", $p([""], ["a"])])
+echo($p(["", "ha", "abc"], ["xyz"])) #OUT 7
diff --git a/tests/openarray/tptrarrayderef.nim b/tests/openarray/tptrarrayderef.nim
new file mode 100644
index 000000000..1b7ef0df0
--- /dev/null
+++ b/tests/openarray/tptrarrayderef.nim
@@ -0,0 +1,84 @@
+discard """
+  output: '''[1, 2, 3, 4]
+3
+['1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C']
+OK
+'''
+"""
+
+var
+  arr = [1,2,3]
+  arrp = addr(arr)
+  sss = @[4,5,6,7]
+  sssp = addr(sss)
+  ra = new(array[3, int])
+  raa = [11,12,13]
+
+#bug #3586
+proc mutate[T](arr:openArray[T], brr: openArray[T]) =
+  for i in 0..arr.len-1:
+    doAssert(arr[i] == brr[i])
+
+mutate(arr, arr)
+
+#bug #2240
+proc f(a: openArray[int], b: openArray[int]) =
+  for i in 0..a.len-1:
+   doAssert(a[i] == b[i])
+
+var a = [7,8,9]
+var p = addr a
+f(p[], a)
+f(sssp[], sss)
+
+ra[0] = 11
+ra[1] = 12
+ra[2] = 13
+f(ra[], raa)
+
+#bug #2240b
+proc fillBuffer(buf: var openArray[char]) =
+  for i in 0..buf.len-1:
+    buf[i] = chr(i)
+
+proc fillSeqBuffer(b: ref seq[char]) =
+  fillBuffer(b[])
+
+proc getFilledBuffer(sz: int): ref seq[char] =
+  let s : ref seq[char] = new(seq[char])
+  s[] = newSeq[char](sz)
+  fillBuffer(s[])
+  return s
+
+let aa = getFilledBuffer(3)
+for i in 0..aa[].len-1:
+  doAssert(aa[i] == chr(i))
+
+var
+  x = [1, 2, 3, 4]
+  y1 = block: (
+    a: (block:
+      echo x
+      cast[ptr array[2, int]](addr(x[0]))[]),
+    b: 3)
+  y2 = block:
+    echo y1.a[0] + y1.a[1]
+    cast[ptr array[4, int]](addr(x))[]
+doAssert y1 == ([1, 2], 3)
+doAssert y2 == [1, 2, 3, 4]
+
+template newOpenArray(x: var string, size: int): openArray[char] =
+  var z = 1
+  toOpenArray(x, z, size)
+
+template doSomethingAndCreate(x: var string): openArray[char] =
+  let size = 12
+  newOpenArray(x, size)
+
+proc sinkk(x: openArray[char]) =
+  echo x
+
+var xArrayDeref = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+sinkk doSomethingAndCreate(xArrayDeref)
+
+echo "OK"
diff --git a/tests/openarray/tuncheckedarray.nim b/tests/openarray/tuncheckedarray.nim
new file mode 100644
index 000000000..c8ca9d2d4
--- /dev/null
+++ b/tests/openarray/tuncheckedarray.nim
@@ -0,0 +1,19 @@
+discard """
+  exitcode: 0
+  targets: "c cpp"
+"""
+
+proc main =
+  block: # issue 19171
+    var a = ['A']
+    proc mutB(x: var openArray[char]) =
+      x[0] = 'B'
+    mutB(toOpenArray(cast[ptr UncheckedArray[char]](addr a), 0, 0))
+    doAssert a[0] == 'B'
+    proc mutC(x: var openArray[char]; c: char) =
+      x[0] = c
+    let p = cast[ptr UncheckedArray[char]](addr a)
+    mutC(toOpenArray(p, 0, 0), 'C')
+    doAssert p[0] == 'C'
+
+main()