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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Object/prototype/extensibility.js | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/prototype/extensibility.js b/js/src/tests/test262/built-ins/Object/prototype/extensibility.js new file mode 100644 index 0000000000..a65c158c7e --- /dev/null +++ b/js/src/tests/test262/built-ins/Object/prototype/extensibility.js @@ -0,0 +1,31 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-properties-of-the-object-prototype-object +description: > + Object.prototype is still extensible and may have extensions prevented +info: | + 19.1.3 Properties of the Object Prototype Object + + The value of the [[Prototype]] internal slot of the Object prototype object is + null and the initial value of the [[Extensible]] internal slot is true. +---*/ + +assert( + Object.isExtensible(Object.prototype), + "Object.prototype is extensible" +); + +assert.sameValue( + Object.preventExtensions(Object.prototype), + Object.prototype, + "Object.prototype may have extensions prevented" +); + +assert.sameValue( + Object.isExtensible(Object.prototype), + false, + "Object.prototype is not extensible after a preventExtensions operation" +); + +reportCompare(0, 0); |