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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/map/create-non-array.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/map/create-non-array.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/map/create-non-array.js b/js/src/tests/test262/built-ins/Array/prototype/map/create-non-array.js new file mode 100644 index 0000000000..1ec3a66d97 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/map/create-non-array.js @@ -0,0 +1,35 @@ +// 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.map +description: Constructor is ignored for non-Array values +info: | + [...] + 5. Let A be ? ArraySpeciesCreate(O, len). + [...] + + 9.4.2.3 ArraySpeciesCreate + + [...] + 3. Let isArray be ? IsArray(originalArray). + 4. If isArray is false, return ? ArrayCreate(length). +---*/ + +var obj = { + length: 0 +}; +var callCount = 0; +var result; +Object.defineProperty(obj, 'constructor', { + get: function() { + callCount += 1; + } +}); + +result = Array.prototype.map.call(obj, function() {}); + +assert.sameValue(callCount, 0, '`constructor` property not accessed'); +assert.sameValue(Object.getPrototypeOf(result), Array.prototype); +assert(Array.isArray(result), 'result is an Array exotic object'); + +reportCompare(0, 0); |