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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/slice/BigInt/detached-buffer-zero-count-custom-ctor-other-targettype.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/slice/BigInt/detached-buffer-zero-count-custom-ctor-other-targettype.js b/js/src/tests/test262/built-ins/TypedArray/prototype/slice/BigInt/detached-buffer-zero-count-custom-ctor-other-targettype.js new file mode 100644 index 0000000000..662fb476a4 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/slice/BigInt/detached-buffer-zero-count-custom-ctor-other-targettype.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.slice +description: > + Does not throw a TypeError if buffer is detached on custom constructor and + count <= 0. Using other targetType. +info: | + 22.2.3.24 %TypedArray%.prototype.slice ( start, end ) + + Let A be ? TypedArraySpeciesCreate(O, « count »). + If count > 0, then + ... + Return A + +includes: [testBigIntTypedArray.js, detachArrayBuffer.js] +features: [align-detached-buffer-semantics-with-web-reality, BigInt, Symbol.species, TypedArray] +---*/ + +testWithBigIntTypedArrayConstructors(function(TA) { + let counter = 0; + let sample, result, Other, other; + let ctor = {}; + ctor[Symbol.species] = function(count) { + counter++; + Other = TA === BigInt64Array ? BigUint64Array : BigInt64Array; + $DETACHBUFFER(sample.buffer); + other = new Other(count); + return other; + }; + + sample = new TA(0); + sample.constructor = ctor; + result = sample.slice(); + assert.sameValue(result.length, 0, 'The value of result.length is 0'); + assert.notSameValue(result.buffer, sample.buffer, 'The value of result.buffer is expected to not equal the value of `sample.buffer`'); + assert.sameValue(result.constructor, Other, 'The value of result.constructor is expected to equal the value of Other'); + assert.sameValue(result, other, 'The value of `result` is expected to equal the value of other'); + assert.sameValue(counter, 1, 'The value of `counter` is 1'); + + sample = new TA(4); + sample.constructor = ctor; + sample.slice(1, 1); // count = 0; + assert.sameValue(counter, 2, 'The value of `counter` is 2'); +}); + +reportCompare(0, 0); |