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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/byteLength/resizable-array-buffer-auto.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/byteLength/resizable-array-buffer-auto.js')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/byteLength/resizable-array-buffer-auto.js | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/byteLength/resizable-array-buffer-auto.js b/js/src/tests/test262/built-ins/TypedArray/prototype/byteLength/resizable-array-buffer-auto.js new file mode 100644 index 0000000000..eec8cf0b14 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/byteLength/resizable-array-buffer-auto.js @@ -0,0 +1,56 @@ +// |reftest| shell-option(--enable-arraybuffer-resizable) skip-if(!ArrayBuffer.prototype.resize||!xulRuntime.shell) -- resizable-arraybuffer is not enabled unconditionally, requires shell-options +// Copyright (C) 2021 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-get-%typedarray%.prototype.byteoffset +description: | + reset to 0 if the underlying ArrayBuffer is resized beyond the boundary of + the dynamically-sized TypedArray instance +includes: [testTypedArray.js] +features: [TypedArray, resizable-arraybuffer] +---*/ + +// If the host chooses to throw as allowed by the specification, the observed +// behavior will be identical to the case where `ArrayBuffer.prototype.resize` +// has not been implemented. The following assertion prevents this test from +// passing in runtimes which have not implemented the method. +assert.sameValue(typeof ArrayBuffer.prototype.resize, "function"); + +testWithTypedArrayConstructors(function(TA) { + var BPE = TA.BYTES_PER_ELEMENT; + var ab = new ArrayBuffer(BPE * 4, {maxByteLength: BPE * 5}); + var array = new TA(ab, BPE); + var expected = BPE * 3; + + assert.sameValue(array.byteLength, expected); + + try { + ab.resize(BPE * 5); + expected = BPE * 4; + } catch (_) {} + + assert.sameValue(array.byteLength, expected, "following grow"); + + try { + ab.resize(BPE * 3); + expected = BPE * 2; + } catch (_) {} + + assert.sameValue(array.byteLength, expected, "following shrink (within bounds)"); + + try { + ab.resize(BPE); + expected = 0; + } catch (_) {} + + assert.sameValue(array.byteLength, expected, "following shrink (on boundary)"); + + try { + ab.resize(0); + expected = 0; + } catch (_) {} + + assert.sameValue(array.byteLength, expected, "following shrink (out of bounds)"); +}); + +reportCompare(0, 0); |