diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/concat/create-proxy.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/concat/create-proxy.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/concat/create-proxy.js b/js/src/tests/test262/built-ins/Array/prototype/concat/create-proxy.js new file mode 100644 index 0000000000..4ce82f5c7f --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/concat/create-proxy.js @@ -0,0 +1,45 @@ +// 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-array.prototype.concat +description: Species constructor of a Proxy object whose target is an array +info: | + [...] + 2. Let A be ? ArraySpeciesCreate(O, 0). + [...] + 7. Return A. + + 9.4.2.3 ArraySpeciesCreate + + [...] + 3. Let isArray be ? IsArray(originalArray). + + 7.2.2 IsArray + + [...] + 3. If argument is a Proxy exotic object, then + a. If the value of the [[ProxyHandler]] internal slot of argument is + null, throw a TypeError exception. + b. Let target be the value of the [[ProxyTarget]] internal slot of + argument. + c. Return ? IsArray(target). +features: [Proxy, Symbol.species] +---*/ + +var array = []; +var proxy = new Proxy(new Proxy(array, {}), {}); +var Ctor = function() {}; +var result; + +array.constructor = function() {}; +array.constructor[Symbol.species] = Ctor; + +result = Array.prototype.concat.call(proxy); + +assert.sameValue( + Object.getPrototypeOf(result), + Ctor.prototype, + 'Object.getPrototypeOf(Array.prototype.concat.call(proxy)) returns Ctor.prototype' +); + +reportCompare(0, 0); |