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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/sort/arraylength-internal.js | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/sort/arraylength-internal.js b/js/src/tests/test262/built-ins/TypedArray/prototype/sort/arraylength-internal.js new file mode 100644 index 0000000000..b11284fb67 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/sort/arraylength-internal.js @@ -0,0 +1,41 @@ +// 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.sort +description: Use internal ArrayLength instead of getting a length property +info: | + 22.2.3.26 %TypedArray%.prototype.sort ( comparefn ) + + ... + 3. Let len be the value of obj's [[ArrayLength]] internal slot. +includes: [testTypedArray.js, compareArray.js] +features: [TypedArray] +---*/ + +var getCalls = 0; +var desc = { + get: function getLen() { + getCalls++; + return 0; + } +}; + +Object.defineProperty(TypedArray.prototype, "length", desc); + +testWithTypedArrayConstructors(function(TA) { + var sample = new TA([42, 42, 42]); + getCalls = 0; + + Object.defineProperty(TA.prototype, "length", desc); + Object.defineProperty(sample, "length", desc); + + var result = sample.sort(); + + assert.sameValue(getCalls, 0, "ignores length properties"); + assert( + compareArray(result, sample), + "result is not affected by custom length" + ); +}); + +reportCompare(0, 0); |