From 6f1e9752c5a783fae14c3bba755fd5a6e0719986 Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Tue, 23 Dec 2025 22:59:55 +0800
Subject: [PATCH] adds a test case

---
 tests/isolate/tisolaterefc.nim | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 tests/isolate/tisolaterefc.nim

diff --git a/tests/isolate/tisolaterefc.nim b/tests/isolate/tisolaterefc.nim
new file mode 100644
index 0000000000..76207bd9b9
--- /dev/null
+++ b/tests/isolate/tisolaterefc.nim
@@ -0,0 +1,29 @@
+discard """
+  nimout: '''
+tisolaterefc.nim(20, 20) Warning: 'string' containing garbage-collected types cannot be isolated in refc [GcIsolated]
+tisolaterefc.nim(21, 25) Warning: 'ptr string' containing garbage-collected types cannot be isolated in refc [GcIsolated]
+tisolaterefc.nim(22, 20) Warning: 'Foo' containing garbage-collected types cannot be isolated in refc [GcIsolated]
+tisolaterefc.nim(23, 25) Warning: 'ptr Foo' containing garbage-collected types cannot be isolated in refc [GcIsolated]
+'''
+  matrix: "--mm:refc"
+"""
+
+import std/isolation
+type
+  Foo = object
+    id: ptr string
+
+proc foo() =
+  var x = Foo()
+
+  var m = "24e"
+  var s1 = isolate(m)
+  var s2 = isolate(addr m)
+  var s3 = isolate(x)
+  var s4 = isolate(addr x)
+  discard s1
+  discard s2
+  discard s3
+  discard s4
+
+foo()