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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-9-c-ii-5.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-9-c-ii-5.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-9-c-ii-5.js b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-9-c-ii-5.js new file mode 100644 index 0000000000..efb6db149f --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-9-c-ii-5.js @@ -0,0 +1,35 @@ +// Copyright (c) 2012 Ecma International. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-array.prototype.reduce +description: > + Array.prototype.reduce - k values are accessed during each + iteration and not prior to starting the loop on an Array +---*/ + +var result = true; +var kIndex = []; +var called = 0; + +//By below way, we could verify that k would be setted as 0, 1, ..., length - 1 in order, and each value will be setted one time. +function callbackfn(prevVal, curVal, idx, obj) { + //Each position should be visited one time, which means k is accessed one time during iterations. + called++; + if (typeof kIndex[idx] === "undefined") { + //when current position is visited, its previous index should has been visited. + if (idx !== 0 && typeof kIndex[idx - 1] === "undefined") { + result = false; + } + kIndex[idx] = 1; + } else { + result = false; + } +} + +[11, 12, 13, 14].reduce(callbackfn, 1); + +assert(result, 'result !== true'); +assert.sameValue(called, 4, 'called'); + +reportCompare(0, 0); |