diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-if-key-cannot-be-held-weakly.js')
-rw-r--r-- | js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-if-key-cannot-be-held-weakly.js | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-if-key-cannot-be-held-weakly.js b/js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-if-key-cannot-be-held-weakly.js new file mode 100644 index 0000000000..b05b51b67a --- /dev/null +++ b/js/src/tests/test262/built-ins/WeakMap/prototype/get/returns-undefined-if-key-cannot-be-held-weakly.js @@ -0,0 +1,39 @@ +// 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 key cannot be held weakly. +info: | + WeakMap.prototype.get ( _key_ ) + 4. If CanBeHeldWeakly(_key_) is *false*, return *undefined*. +features: [Symbol, WeakMap] +---*/ + +var map = new WeakMap(); + +assert.sameValue(map.get(null), undefined, 'Returns undefined if key is null'); + +assert.sameValue(map.get(NaN), undefined, 'Returns undefined if key is NaN'); + +assert.sameValue( + map.get('foo'), undefined, + 'Returns undefined if key is a String' +); + +assert.sameValue( + map.get(1), undefined, + 'Returns undefined if key is a Number' +); + +assert.sameValue( + map.get(undefined), undefined, + 'Returns undefined if key is undefined' +); + +assert.sameValue( + map.get(Symbol.for('registered symbol')), undefined, + 'Returns undefined if key is a registered Symbol' +); + +reportCompare(0, 0); |