diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-with-object-key.js')
-rw-r--r-- | js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-with-object-key.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-with-object-key.js b/js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-with-object-key.js new file mode 100644 index 0000000000..3a49d62d7f --- /dev/null +++ b/js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-with-object-key.js @@ -0,0 +1,36 @@ +// 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-weakmap.prototype.get +description: > + Returns undefined when an Object key is not on the WeakMap object. +info: | + WeakMap.prototype.get ( _key_ ) + 3. Let _entries_ be the List that is _M_.[[WeakMapData]]. + 4. If CanBeHeldWeakly(_key_) is *false*, return *undefined*. + 5. For each Record {[[Key]], [[Value]]} _p_ of _entries_, do + a. If _p_.[[Key]] is not empty and SameValue(_p_.[[Key]], _key_) is *true*, + return _p_.[[Value]]. + 6. Return *undefined*. +features: [WeakMap] +---*/ + +var map = new WeakMap(); +var key = {}; + +assert.sameValue( + map.get(key), undefined, + 'returns undefined if key is not on the weakmap' +); + +map.set(key, 1); +map.set({}, 2); +map.delete(key); +map.set({}, 3); + +assert.sameValue( + map.get(key), undefined, + 'returns undefined if key was deleted' +); + +reportCompare(0, 0); |