some test cleanups & category reorganization (#22010)

* clean up some test categories

* mention exact slice issue

* magics into system

* move trangechecks into overflow

* move tmemory to system

* try fix CI

* try fix CI

* final CI fix

1 files changed, 68 insertions, 0 deletions

diff --git a/tests/vm/tcnstseq.nim b/tests/vm/tcnstseq.nim
new file mode 100644
index 000000000..5679a6e37
--- /dev/null
+++ b/tests/vm/tcnstseq.nim
@@ -0,0 +1,68 @@
+discard """
+output: '''
+AngelikaAnneAnnaAnkaAnja
+AngelikaAnneAnnaAnkaAnja
+AngelikaAnneAnnaAnkaAnja
+onetwothree
+onetwothree
+onetwothree
+one1two2three3
+'''
+"""
+# Test the new implicit conversion from sequences to arrays in a constant
+# context.
+
+import strutils
+
+
+block t1:
+  const
+    myWords = "Angelika Anne Anna Anka Anja".split()
+
+  for x in items(myWords):
+    write(stdout, x) #OUT AngelikaAnneAnnaAnkaAnja
+  echo ""
+
+
+block t2:
+  const
+    myWords = @["Angelika", "Anne", "Anna", "Anka", "Anja"]
+
+  for i in 0 .. high(myWords):
+    write(stdout, myWords[i]) #OUT AngelikaAnneAnnaAnkaAnja
+  echo ""
+
+
+block t3:
+  for w in items(["Angelika", "Anne", "Anna", "Anka", "Anja"]):
+    write(stdout, w) #OUT AngelikaAnneAnnaAnkaAnja
+  echo ""
+
+
+block t2656:
+  iterator it1(args: seq[string]): string =
+    for s in args: yield s
+  iterator it2(args: seq[string]): string {.closure.} =
+    for s in args: yield s
+  iterator it3(args: openArray[string]): string {.closure.} =
+    for s in args: yield s
+  iterator it4(args: openArray[(string, string)]): string {.closure.} =
+    for s1, s2 in items(args): yield s1 & s2
+
+  block:
+    const myConstSeq = @["one", "two", "three"]
+    for s in it1(myConstSeq):
+      stdout.write s
+    echo ""
+    for s in it2(myConstSeq):
+      stdout.write s
+    echo ""
+    for s in it3(myConstSeq):
+      stdout.write s
+    echo ""
+
+  block:
+    const myConstSeq = @[("one", "1"), ("two", "2"), ("three", "3")]
+    for s in it4(myConstSeq):
+      stdout.write s
+    echo ""