1 files changed, 33 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/harmony/weakrefs/cleanupsome-weakcell.js b/deps/v8/test/mjsunit/harmony/weakrefs/cleanupsome-weakcell.js
new file mode 100644
index 0000000000..84a946d390
--- /dev/null
+++ b/deps/v8/test/mjsunit/harmony/weakrefs/cleanupsome-weakcell.js
@@ -0,0 +1,33 @@
+// 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_count = 0;
+let cleanup_cells = [];
+let cleanup = function(iter) {
+  for (wc of iter) {
+    cleanup_cells.push(wc);
+  }
+  ++cleanup_count;
+}
+
+let wf = new WeakFactory(cleanup);
+let weak_cell;
+(function() {
+  let o = {};
+  weak_cell = wf.makeCell(o);
+
+  // cleanupSome won't do anything since there are no dirty WeakCells.
+  wf.cleanupSome();
+  assertEquals(0, cleanup_count);
+})();
+
+// GC will detect the WeakCell as dirty.
+gc();
+
+wf.cleanupSome();
+assertEquals(1, cleanup_count);
+assertEquals(1, cleanup_cells.length);
+assertEquals(weak_cell, cleanup_cells[0]);