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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/tests/test262/built-ins/TypedArray/prototype/join/get-length-uses-internal-arraylength.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArray/prototype/join/get-length-uses-internal-arraylength.js')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/join/get-length-uses-internal-arraylength.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/join/get-length-uses-internal-arraylength.js b/js/src/tests/test262/built-ins/TypedArray/prototype/join/get-length-uses-internal-arraylength.js new file mode 100644 index 0000000000..95b4bac090 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/join/get-length-uses-internal-arraylength.js @@ -0,0 +1,47 @@ +// 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.join +description: Get "length" uses internal ArrayLength +info: | + 22.2.3.15 %TypedArray%.prototype.join ( separator ) + + %TypedArray%.prototype.join is a distinct function that implements the same + algorithm as Array.prototype.join as defined in 22.1.3.13 except that the this + object's [[ArrayLength]] internal slot is accessed in place of performing a + [[Get]] of "length". + + 22.1.3.13 Array.prototype.join (separator) + + 1. Let O be ? ToObject(this value). + 2. Let len be ? ToLength(? Get(O, "length")). + ... + 5. If len is zero, return the empty String. + ... +includes: [testTypedArray.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, 43]); + + Object.defineProperty(TA.prototype, "length", desc); + Object.defineProperty(sample, "length", desc); + + var result = sample.join(); + + assert.sameValue(getCalls, 0, "ignores length properties"); + assert.notSameValue(result, "", "result is not affected but custom length 0"); +}); + +reportCompare(0, 0); |