1 files changed, 44 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/harmony/weakrefs/multiple-dirty-weak-factories.js b/deps/v8/test/mjsunit/harmony/weakrefs/multiple-dirty-weak-factories.js
new file mode 100644
index 0000000000..98a33df240
--- /dev/null
+++ b/deps/v8/test/mjsunit/harmony/weakrefs/multiple-dirty-weak-factories.js
@@ -0,0 +1,44 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
+
+let cleanup_call_count = 0;
+let cleanup_weak_cell_count = 0;
+let cleanup = function(iter) {
+  for (wc of iter) {
+    ++cleanup_weak_cell_count;
+  }
+  ++cleanup_call_count;
+}
+
+let wf1 = new WeakFactory(cleanup);
+let wf2 = new WeakFactory(cleanup);
+
+// Create two objects and WeakCells pointing to them. The objects need to be inside
+// a closure so that we can reliably kill them!
+let weak_cell1;
+let weak_cell2;
+
+(function() {
+  let object1 = {};
+  weak_cell1 = wf1.makeCell(object1);
+
+  let object2 = {};
+  weak_cell2 = wf2.makeCell(object2);
+
+  // object1 and object2 go out of scope.
+})();
+
+// This GC will discover dirty WeakCells and schedule cleanup.
+gc();
+assertEquals(0, cleanup_call_count);
+
+// Assert that the cleanup function was called and iterated the WeakCells.
+let timeout_func = function() {
+  assertEquals(2, cleanup_call_count);
+  assertEquals(2, cleanup_weak_cell_count);
+}
+
+setTimeout(timeout_func, 0);