diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/from/elements-added-after.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/from/elements-added-after.js | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/from/elements-added-after.js b/js/src/tests/test262/built-ins/Array/from/elements-added-after.js new file mode 100644 index 0000000000..7676448d32 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/from/elements-added-after.js @@ -0,0 +1,40 @@ +// Copyright 2015 Microsoft Corporation. All rights reserved. +// This code is governed by the license found in the LICENSE file. + +/*--- +description: Elements added after the call to from +esid: sec-array.from +---*/ + +var arrayIndex = -1; +var originalLength = 7; +var obj = { + length: originalLength, + 0: 2, + 1: 4, + 2: 8, + 3: 16, + 4: 32, + 5: 64, + 6: 128 +}; +var array = [2, 4, 8, 16, 32, 64, 128]; + +function mapFn(value, index) { + arrayIndex++; + assert.sameValue(value, obj[arrayIndex], 'The value of value is expected to equal the value of obj[arrayIndex]'); + assert.sameValue(index, arrayIndex, 'The value of index is expected to equal the value of arrayIndex'); + obj[originalLength + arrayIndex] = 2 * arrayIndex + 1; + + return obj[arrayIndex]; +} + + +var a = Array.from(obj, mapFn); +assert.sameValue(a.length, array.length, 'The value of a.length is expected to equal the value of array.length'); + +for (var j = 0; j < a.length; j++) { + assert.sameValue(a[j], array[j], 'The value of a[j] is expected to equal the value of array[j]'); +} + +reportCompare(0, 0); |