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Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/get-length-uses-internal-arraylength.js')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/get-length-uses-internal-arraylength.js | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/get-length-uses-internal-arraylength.js b/js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/get-length-uses-internal-arraylength.js new file mode 100644 index 0000000000..3c20d9e937 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/get-length-uses-internal-arraylength.js @@ -0,0 +1,34 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-%typedarray%.prototype.lastindexof +description: Get "length" uses internal ArrayLength +info: | + 22.2.3.17 %TypedArray%.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) + + %TypedArray%.prototype.lastIndexOf is a distinct function that implements the + same algorithm as Array.prototype.lastIndexOf as defined in 22.1.3.15 except + that the this object's [[ArrayLength]] internal slot is accessed in place of + performing a [[Get]] of "length". + + 22.1.3.15 Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) + + ... + 2. Let len be ? ToLength(? Get(O, "length")). + ... +includes: [testTypedArray.js] +features: [TypedArray] +---*/ + +Object.defineProperty(TypedArray.prototype, "length", {value: 0}); + +testWithTypedArrayConstructors(function(TA) { + var sample = new TA([7]); + + Object.defineProperty(TA.prototype, "length", {value: 0}); + Object.defineProperty(sample, "length", {value: 0}); + + assert.sameValue(sample.lastIndexOf(7), 0); +}); + +reportCompare(0, 0); |