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Diffstat (limited to 'js/src/tests/test262/built-ins/Object/getOwnPropertyNames/proxy-invariant-not-extensible-extra-symbol-key.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Object/getOwnPropertyNames/proxy-invariant-not-extensible-extra-symbol-key.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/getOwnPropertyNames/proxy-invariant-not-extensible-extra-symbol-key.js b/js/src/tests/test262/built-ins/Object/getOwnPropertyNames/proxy-invariant-not-extensible-extra-symbol-key.js new file mode 100644 index 0000000000..e03c0d9fb5 --- /dev/null +++ b/js/src/tests/test262/built-ins/Object/getOwnPropertyNames/proxy-invariant-not-extensible-extra-symbol-key.js @@ -0,0 +1,51 @@ +// Copyright (C) 2019 Alexey Shvayka. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-object.getownpropertynames +description: > + Proxy [[OwnPropertyKeys]] trap does not skip symbol keys when validating invariant: + * If the target object is not extensible, then the result List must contain all the keys of + the own properties of the target object and no other values. +info: | + Object.getOwnPropertyNames ( O ) + + 1. Return ? GetOwnPropertyKeys(O, String). + + GetOwnPropertyKeys ( O, type ) + + ... + 2. Let keys be ? obj.[[OwnPropertyKeys]](). + + [[OwnPropertyKeys]] ( ) + + ... + 11. Let targetKeys be ? target.[[OwnPropertyKeys]](). + 16. For each element key of targetKeys, do + a. Let desc be ? target.[[GetOwnProperty]](key). + b. If desc is not undefined and desc.[[Configurable]] is false, then + ... + c. Else, + i. Append key as an element of targetConfigurableKeys. + ... + 18. Let uncheckedResultKeys be a new List which is a copy of trapResult. + ... + 22. If uncheckedResultKeys is not empty, throw a TypeError exception. +features: [Proxy, Symbol] +---*/ + +var target = {}; +var symbol = Symbol(); +var proxy = new Proxy(target, { + ownKeys: function() { + return [symbol]; + }, +}); + +Object.preventExtensions(target); + +assert.throws(TypeError, function() { + Object.getOwnPropertyNames(proxy); +}); + +reportCompare(0, 0); |