1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Map/prototype/get/does-not-have-mapdata-internal-slot-weakmap.js b/js/src/tests/test262/built-ins/Map/prototype/get/does-not-have-mapdata-internal-slot-weakmap.js
new file mode 100644
index 0000000000..618f1201df
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Map/prototype/get/does-not-have-mapdata-internal-slot-weakmap.js
@@ -0,0 +1,26 @@
+// 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.get
+description: >
+  Throws a TypeError if `this` is a WeakMap object.
+info: |
+  Map.prototype.get ( key )
+
+  ...
+  3. If M does not have a [[MapData]] internal slot, throw a TypeError
+  exception.
+  ...
+features: [WeakMap]
+---*/
+
+assert.throws(TypeError, function() {
+  Map.prototype.get.call(new WeakMap(), 1);
+});
+
+assert.throws(TypeError, function() {
+  var m = new Map();
+  m.get.call(new WeakMap(), 1);
+});
+
+reportCompare(0, 0);