1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Map/prototype/delete/returns-false.js b/js/src/tests/test262/built-ins/Map/prototype/delete/returns-false.js
new file mode 100644
index 0000000000..975d6e6ceb
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Map/prototype/delete/returns-false.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-map.prototype.delete
+description: >
+  Returns false when it does not delete an entry.
+info: |
+  Map.prototype.delete ( key )
+
+  4. Let entries be the List that is the value of M’s [[MapData]] internal slot.
+  5. Repeat for each Record {[[key]], [[value]]} p that is an element of entries,
+    a. If p.[[key]] is not empty and SameValueZero(p.[[key]], key) is true, then
+      ...
+      iii. Return true.
+  6. Return false.
+---*/
+
+var m = new Map([
+  ['a', 1],
+  ['b', 2]
+]);
+
+assert.sameValue(m.delete('not-in-the-map'), false);
+
+m.delete('a');
+assert.sameValue(m.delete('a'), false);
+
+reportCompare(0, 0);