diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/from/elements-updated-after.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/from/elements-updated-after.js | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/from/elements-updated-after.js b/js/src/tests/test262/built-ins/Array/from/elements-updated-after.js new file mode 100644 index 0000000000..210aaf5fd4 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/from/elements-updated-after.js @@ -0,0 +1,29 @@ +// Copyright 2015 Microsoft Corporation. All rights reserved. +// This code is governed by the license found in the LICENSE file. + +/*--- +description: Elements are updated after the call to from +esid: sec-array.from +---*/ + +var array = [127, 4, 8, 16, 32, 64, 128]; +var arrayIndex = -1; + +function mapFn(value, index) { + arrayIndex++; + if (index + 1 < array.length) { + array[index + 1] = 127; + } + assert.sameValue(value, 127, 'The value of value is expected to be 127'); + assert.sameValue(index, arrayIndex, 'The value of index is expected to equal the value of arrayIndex'); + + return value; +} + +var a = Array.from(array, 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], 127, 'The value of a[j] is expected to be 127'); +} + +reportCompare(0, 0); |