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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/seal-and-freeze.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/seal-and-freeze.js | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/non262/TypedArray/seal-and-freeze.js b/js/src/tests/non262/TypedArray/seal-and-freeze.js new file mode 100644 index 0000000000..f90efb866f --- /dev/null +++ b/js/src/tests/non262/TypedArray/seal-and-freeze.js @@ -0,0 +1,49 @@ +"use strict"; + +// Seal +assertEq(Object.isSealed(new Int32Array(2)), false); +assertEq(Object.isSealed(new Int32Array(0)), false); + +var array = new Int32Array(0); +Object.preventExtensions(array); +assertEq(Object.isSealed(array), true); + +// Non-empty typed arrays can never be sealed, because the elements stay configurable. +array = new Int32Array(1); +array.b = "test"; +Object.preventExtensions(array); +assertEq(Object.isSealed(array), false); +Object.defineProperty(array, "b", {configurable: false}); +assertEq(Object.isSealed(array), false); + +array = new Int32Array(2); +array.b = "test"; +assertThrowsInstanceOf(() => Object.seal(array), TypeError); +assertEq(Object.isSealed(array), false); +assertThrowsInstanceOf(() => array.c = 15, TypeError); + +// Freeze +assertEq(Object.isFrozen(new Int32Array(2)), false); +assertEq(Object.isFrozen(new Int32Array(0)), false); + +// Empty non-extensible typed-array is trivially frozen +var array = new Int32Array(0); +Object.preventExtensions(array); +assertEq(Object.isFrozen(array), true); + +array = new Int32Array(0); +array.b = "test"; +assertEq(Object.isFrozen(array), false); +Object.preventExtensions(array); +assertEq(Object.isFrozen(array), false); +Object.defineProperty(array, "b", {configurable: false, writable: false}); +assertEq(Object.isFrozen(array), true); + +// Non-empty typed arrays can never be frozen, because the elements stay writable +array = new Int32Array(1); +assertThrowsInstanceOf(() => Object.freeze(array), TypeError); +assertEq(Object.isExtensible(array), false); +assertEq(Object.isFrozen(array), false); + +if (typeof reportCompare === "function") + reportCompare(true, true); |