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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/TypedArray/slice-detached.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/TypedArray/slice-detached.js | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/js/src/tests/non262/TypedArray/slice-detached.js b/js/src/tests/non262/TypedArray/slice-detached.js new file mode 100644 index 0000000000..be16653154 --- /dev/null +++ b/js/src/tests/non262/TypedArray/slice-detached.js @@ -0,0 +1,103 @@ +// Tests for detached ArrayBuffer checks in %TypedArray%.prototype.slice ( start, end ). + +function* createTypedArrays(lengths = [0, 1, 4, 4096]) { + // Test with eagerly created ArrayBuffer. + for (let length of lengths) { + let buffer = new ArrayBuffer(length * Int32Array.BYTES_PER_ELEMENT); + let typedArray = new Int32Array(buffer); + + yield {typedArray, length, buffer() { return buffer; }}; + } + + // Test with lazily created ArrayBuffer. + for (let length of lengths) { + let typedArray = new Int32Array(length); + + yield {typedArray, length, buffer() { return typedArray.buffer; }}; + } +} + +if (typeof detachArrayBuffer === "function") { + // ArrayBuffer is detached when entering slice(). + for (let {typedArray, buffer} of createTypedArrays()) { + detachArrayBuffer(buffer()); + assertThrowsInstanceOf(() => { + typedArray.slice(0); + }, TypeError, "ArrayBuffer is detached on function entry"); + } + + // ArrayBuffer is detached when computing ToInteger(start). + for (let {typedArray, length, buffer} of createTypedArrays()) { + let detached = false; + let start = { + valueOf() { + assertEq(detached, false); + detachArrayBuffer(buffer()); + assertEq(detached, false); + detached = true; + return 0; + } + }; + + // Doesn't throw an error when no bytes are copied. + if (length === 0) { + typedArray.slice(start); + } else { + assertThrowsInstanceOf(() => { + typedArray.slice(start); + }, TypeError, "ArrayBuffer is detached in ToInteger(start)"); + } + assertEq(detached, true, "detachArrayBuffer was called"); + } + + // ArrayBuffer is detached when computing ToInteger(end). + for (let {typedArray, length, buffer} of createTypedArrays()) { + let detached = false; + let end = { + valueOf() { + assertEq(detached, false); + detachArrayBuffer(buffer()); + assertEq(detached, false); + detached = true; + return length; + } + }; + + // Doesn't throw an error when no bytes are copied. + if (length === 0) { + typedArray.slice(0, end); + } else { + assertThrowsInstanceOf(() => { + typedArray.slice(0, end); + }, TypeError, "ArrayBuffer is detached in ToInteger(end)"); + } + assertEq(detached, true, "detachArrayBuffer was called"); + } + + // ArrayBuffer is detached in species constructor. + for (let {typedArray, length, buffer} of createTypedArrays()) { + let detached = false; + typedArray.constructor = { + [Symbol.species]: function(...args) { + assertEq(detached, false); + detachArrayBuffer(buffer()); + assertEq(detached, false); + detached = true; + return new Int32Array(...args); + } + }; + + // Doesn't throw an error when no bytes are copied. + if (length === 0) { + typedArray.slice(0); + } else { + assertThrowsInstanceOf(() => { + typedArray.slice(0); + }, TypeError, "ArrayBuffer is detached in TypedArraySpeciesCreate(...)"); + } + assertEq(detached, true, "detachArrayBuffer was called"); + } +} + +if (typeof reportCompare === "function") + reportCompare(true, true); |