1 files changed, 46 insertions, 0 deletions
diff --git a/tests/arc/topenarray.nim b/tests/arc/topenarray.nim
index 47c26a11f..ba91666ba 100644
--- a/tests/arc/topenarray.nim
+++ b/tests/arc/topenarray.nim
@@ -6,6 +6,8 @@ Nim
 '''
   matrix: "--gc:arc -d:useMalloc; --gc:arc"
 """
+{.experimental: "views".}
+
 block: # bug 18627
   proc setPosition(params: openArray[string]) =
     for i in params.toOpenArray(0, params.len - 1):
@@ -38,3 +40,47 @@ block: # bug #20954
       var v: seq[int]
 
       echo len(toOpenArray(v, 20, 30))
+
+# bug #20422
+
+proc f(a: var string) =
+  var v = a.toOpenArray(1, 3)
+  v[0] = 'a'
+
+var a = "Hello"
+f(a)
+doAssert a == "Hallo"
+
+# bug #22132
+block:
+  func foo[T](arr: openArray[T], idx: int = arr.low): string =
+    doAssert idx == 0
+    return $arr
+
+  let bug = ["0", "c", "a"]
+
+  let str = foo(bug)
+
+  const expected = """["0", "c", "a"]"""
+  doAssert str == expected
+
+  const noBugConst = ["0", "c", "a"]
+  doAssert foo(noBugConst) == expected
+  let noBugSeq = @["0", "c", "a"]
+  doAssert foo(noBugSeq) == expected
+
+block: # bug #20865
+  var p: pointer
+  var x: array[0, int]
+  # echo toOpenArray(x, 0, 1)[0] # Raises IndexDefect
+  doAssertRaises(IndexDefect):
+    echo toOpenArray(cast[ptr array[0, int]](p)[], 0, 1)[0] # Does not raise IndexDefect
+
+block: # bug #20987
+  var v: array[1, byte]
+
+  var p = cast[ptr array[0, byte]](addr v)
+
+  doAssertRaises(IndexDefect):
+    echo toOpenArray(p[], 1, 2)
+