1 files changed, 96 insertions, 3 deletions
diff --git a/tests/destructor/tv2_cast.nim b/tests/destructor/tv2_cast.nim
index 9c05b2ae1..48bdf67dd 100644
--- a/tests/destructor/tv2_cast.nim
+++ b/tests/destructor/tv2_cast.nim
@@ -1,10 +1,81 @@
 discard """
-  cmd: '''nim c --newruntime $file'''
   output: '''@[1]
 @[116, 101, 115, 116]
-@[1953719668, 875770417]'''
+@[1953719668, 875770417]
+destroying O1'''
+  cmd: '''nim c --mm:arc --expandArc:main --expandArc:main1 --expandArc:main2 --expandArc:main3 --hints:off --assertions:off $file'''
+  nimout: '''
+--expandArc: main
+
+var
+  data
+  :tmpD
+data = cast[string](encode(cast[seq[byte]](
+  :tmpD = newString(100)
+  :tmpD)))
+`=destroy`(:tmpD)
+`=destroy`(data)
+-- end of expandArc ------------------------
+--expandArc: main1
+
+var
+  s
+  data
+s = newString(100)
+data = cast[string](encode(toOpenArrayByte(s, 0, len(s) - 1)))
+`=destroy`(data)
+`=destroy`(s)
+-- end of expandArc ------------------------
+--expandArc: main2
+
+var
+  s
+  data
+s = newSeq(100)
+data = cast[string](encode(s))
+`=destroy`(data)
+`=destroy_1`(s)
+-- end of expandArc ------------------------
+--expandArc: main3
+
+var
+  data
+  :tmpD
+data = cast[string](encode do:
+  :tmpD = newSeq(100)
+  :tmpD)
+`=destroy`(:tmpD)
+`=destroy_1`(data)
+-- end of expandArc ------------------------
+'''
 """
 
+func encode*(src: openArray[byte]): seq[byte] =
+  result = newSeq[byte](src.len)
+
+template compress*(src: string): string =
+  cast[string](encode(cast[seq[byte]](src)))
+
+proc main =
+  let data = compress(newString(100))
+main()
+
+proc main1 =
+  var
+    s = newString(100)
+  let data = cast[string](encode(s.toOpenArrayByte(0, s.len-1)))
+main1()
+
+proc main2 =
+  var
+    s = newSeq[byte](100)
+  let data = cast[string](encode(s))
+main2()
+
+proc main3 =
+  let data = cast[string](encode(newSeq[byte](100)))
+main3()
+
 # bug #11018
 discard cast[seq[uint8]](@[1])
 discard cast[seq[uint8]]("test")
@@ -20,4 +91,26 @@ echo a
 
 #issue 11204
 var ac {.compileTime.} = @["a", "b"]
-const bc = ac.len
\ No newline at end of file
+const bc = ac.len
+
+
+type
+  O = object of RootRef
+    i: int
+
+  O1 = object of O
+  O2 = object of O
+
+proc `=destroy`(o: var O) =
+  echo "destroying O"
+
+proc `=destroy`(o: var O1) =
+  echo "destroying O1"
+
+proc `=destroy`(o: var O2) =
+  echo "destroying O2"
+
+proc test =
+  let o3 = cast[ref O2]((ref O1)())
+
+test()