diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_spreadable-sparse-object.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_spreadable-sparse-object.js | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_spreadable-sparse-object.js b/js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_spreadable-sparse-object.js new file mode 100644 index 0000000000..1ede626d06 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_spreadable-sparse-object.js @@ -0,0 +1,25 @@ +// Copyright (c) 2014 the V8 project authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + + +/*--- +esid: sec-array.prototype.concat +description: Array.prototype.concat Symbol.isConcatSpreadable sparse object +includes: [compareArray.js] +features: [Symbol.isConcatSpreadable] +---*/ +var obj = { + length: 5 +}; +obj[Symbol.isConcatSpreadable] = true; +assert.compareArray([void 0, void 0, void 0, void 0, void 0], [].concat(obj), + '[void 0, void 0, void 0, void 0, void 0] must return the same value returned by [].concat(obj)' +); + +obj.length = 4000; +assert.compareArray(new Array(4000), [].concat(obj), + 'new Array(4000) must return the same value returned by [].concat(obj)' +); + +reportCompare(0, 0); |