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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-10.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-10.js | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-10.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-10.js new file mode 100644 index 0000000000..2915a82e7a --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-10.js @@ -0,0 +1,21 @@ +// Copyright (c) 2012 Ecma International. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +info: | + note that prior to the finally ES5 draft SameValue was used for comparisions + and hence NaNs could be found using lastIndexOf * +esid: sec-array.prototype.lastindexof +description: Array.prototype.lastIndexOf must return correct index (NaN) +---*/ + +var _NaN = NaN; +var a = new Array("NaN", _NaN, NaN, undefined, 0, false, null, { + toString: function() { + return NaN + } +}, "false"); + +assert.sameValue(a.lastIndexOf(NaN), -1, 'NaN matches nothing, not even itself'); + +reportCompare(0, 0); |