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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-9.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-9.js | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-9.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-9.js new file mode 100644 index 0000000000..142287e556 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-9.js @@ -0,0 +1,27 @@ +// 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.lastindexof +description: > + Array.prototype.lastIndexOf must return correct index (Sparse + Array) +---*/ + +var a = new Array(0, 1); +a[4294967294] = 2; // 2^32-2 - is max array element index +a[4294967295] = 3; // 2^32-1 added as non-array element property +a[4294967296] = 4; // 2^32 added as non-array element property +a[4294967297] = 5; // 2^32+1 added as non-array element property +// stop searching near the end in case implementation actually tries to test all missing elements!! +a[4294967200] = 3; +a[4294967201] = 4; +a[4294967202] = 5; + + +assert.sameValue(a.lastIndexOf(2), 4294967294, 'a.lastIndexOf(2)'); +assert.sameValue(a.lastIndexOf(3), 4294967200, 'a.lastIndexOf(3)'); +assert.sameValue(a.lastIndexOf(4), 4294967201, 'a.lastIndexOf(4)'); +assert.sameValue(a.lastIndexOf(5), 4294967202, 'a.lastIndexOf(5)'); + +reportCompare(0, 0); |