diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Proxy/has/return-false-target-not-extensible.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/has/return-false-target-not-extensible.js | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/has/return-false-target-not-extensible.js b/js/src/tests/test262/built-ins/Proxy/has/return-false-target-not-extensible.js new file mode 100644 index 0000000000..2cb55fd76f --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/has/return-false-target-not-extensible.js @@ -0,0 +1,43 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 9.5.7 +description: > + A property cannot be reported as non-existent, if it exists as an own + property of the target object and the target object is not extensible. +info: | + [[HasProperty]] (P) + + ... + 11. If booleanTrapResult is false, then + a. Let targetDesc be target.[[GetOwnProperty]](P). + b. ReturnIfAbrupt(targetDesc). + c. If targetDesc is not undefined, then + ... + ii. Let extensibleTarget be IsExtensible(target). + ... + iv. If extensibleTarget is false, throw a TypeError exception. + ... +features: [Proxy] +---*/ + +var target = {}; +var handler = { + has: function(t, prop) { + return 0; + } +}; +var p = new Proxy(target, handler); + +Object.defineProperty(target, "attr", { + configurable: true, + value: 1 +}); + +Object.preventExtensions(target); + +assert.throws(TypeError, function() { + "attr" in p; +}); + +reportCompare(0, 0); |