diff options
Diffstat (limited to 'js/src/tests/non262/TypedArray/toLocaleString-detached.js')
-rw-r--r-- | js/src/tests/non262/TypedArray/toLocaleString-detached.js | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/tests/non262/TypedArray/toLocaleString-detached.js b/js/src/tests/non262/TypedArray/toLocaleString-detached.js new file mode 100644 index 0000000000..0ba22cc68e --- /dev/null +++ b/js/src/tests/non262/TypedArray/toLocaleString-detached.js @@ -0,0 +1,38 @@ +if (typeof detachArrayBuffer === "function") { + const originalNumberToLocaleString = Number.prototype.toLocaleString; + + // Throws if array buffer is detached. + for (let constructor of typedArrayConstructors) { + let typedArray = new constructor(42); + detachArrayBuffer(typedArray.buffer); + assertThrowsInstanceOf(() => typedArray.toLocaleString(), TypeError); + } + + // Doesn't throw a TypeError if detached in Number.prototype.toLocaleString. + for (let constructor of typedArrayConstructors) { + Number.prototype.toLocaleString = function() { + "use strict"; + if (!detached) { + detachArrayBuffer(typedArray.buffer); + detached = true; + } + return this; + }; + + // No error for single element arrays. + let detached = false; + let typedArray = new constructor(1); + assertEq(typedArray.toLocaleString(), "0"); + assertEq(detached, true); + + // And no error if more than one element is present. + detached = false; + typedArray = new constructor(2); + assertEq(typedArray.toLocaleString(), "0,"); + assertEq(detached, true); + } + Number.prototype.toLocaleString = originalNumberToLocaleString; +} + +if (typeof reportCompare === "function") + reportCompare(true, true); |