1 files changed, 38 insertions, 0 deletions
diff --git a/tests/parallel/tgc_unsafe2.nim b/tests/parallel/tgc_unsafe2.nim
new file mode 100644
index 000000000..7d98dafcb
--- /dev/null
+++ b/tests/parallel/tgc_unsafe2.nim
@@ -0,0 +1,38 @@
+discard """
+  errormsg: "'consumer' is not GC-safe as it calls 'track'"
+  nimout: '''tgc_unsafe2.nim(21, 6) Warning: 'trick' is not GC-safe as it accesses 'global' which is a global using GC'ed memory [GcUnsafe2]
+tgc_unsafe2.nim(25, 6) Warning: 'track' is not GC-safe as it calls 'trick' [GcUnsafe2]
+tgc_unsafe2.nim(27, 6) Error: 'consumer' is not GC-safe as it calls 'track'
+'''
+"""
+
+import threadpool
+
+type StringChannel = Channel[string]
+var channels: array[1..3, StringChannel]
+
+type
+  MyObject[T] = object
+    x: T
+
+var global: MyObject[string]
+var globalB: MyObject[float]
+
+proc trick(ix: int) =
+  echo global.x
+  echo channels[ix].recv()
+
+proc track(ix: int) = trick(ix)
+
+proc consumer(ix: int) {.thread.} =
+  track(ix)
+
+proc main =
+  for ix in 1..3: channels[ix].open()
+  for ix in 1..3: spawn consumer(ix)
+  for ix in 1..3: channels[ix].send("test")
+  sync()
+  for ix in 1..3: channels[ix].close()
+
+when true:
+  main()