diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/map/create-species-undef-invalid-len.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/map/create-species-undef-invalid-len.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/map/create-species-undef-invalid-len.js b/js/src/tests/test262/built-ins/Array/prototype/map/create-species-undef-invalid-len.js new file mode 100644 index 0000000000..e3e1f1e7e4 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/map/create-species-undef-invalid-len.js @@ -0,0 +1,61 @@ +// 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: > + An undefined value for the @@species constructor triggers the creation of + an Array exotic object +info: | + [...] + 5. Let A be ? ArraySpeciesCreate(O, len). + [...] + + 9.4.2.3 ArraySpeciesCreate + + [...] + 5. Let C be ? Get(originalArray, "constructor"). + [...] + 7. If Type(C) is Object, then + a. Let C be ? Get(C, @@species). + b. If C is null, let C be undefined. + 8. If C is undefined, return ? ArrayCreate(length). + + 9.4.2.2 ArrayCreate + + [...] + 3. If length>232-1, throw a RangeError exception. +features: [Proxy] +---*/ + +var array = []; +var maxLength = Math.pow(2, 32); +var cbCount = 0; +var setCount = 0; +var cb = function() { + cbCount += 1; +}; +var proxy = new Proxy(array, { + get: function(_, name) { + if (name === 'length') { + return maxLength; + } + return array[name]; + }, + set: function() { + setCount += 1; + return true; + } +}); + +assert.throws(RangeError, function() { + Array.prototype.map.call(proxy, cb); +}); + +assert.sameValue( + setCount, + 0, + 'RangeError thrown during array creation, not property modification' +); +assert.sameValue(cbCount, 0, 'callback function not invoked'); + +reportCompare(0, 0); |