diff options
Diffstat (limited to 'js/src/tests/non262/TypedArray/find-and-findIndex.js')
-rw-r--r-- | js/src/tests/non262/TypedArray/find-and-findIndex.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/non262/TypedArray/find-and-findIndex.js b/js/src/tests/non262/TypedArray/find-and-findIndex.js new file mode 100644 index 0000000000..125ababd0b --- /dev/null +++ b/js/src/tests/non262/TypedArray/find-and-findIndex.js @@ -0,0 +1,52 @@ +/* + * Any copyright is dedicated to the Public Domain. + * https://creativecommons.org/publicdomain/zero/1.0/ + */ + +var BUGNUMBER = 1078975; +var summary = "Implement %TypedArray%.prototype.{find, findIndex}"; +print(BUGNUMBER + ": " + summary); + +const methods = ["find", "findIndex"]; + +anyTypedArrayConstructors.forEach(constructor => { + methods.forEach(method => { + var arr = new constructor([0, 1, 2, 3, 4, 5]); + // test that this.length is never called + Object.defineProperty(arr, "length", { + get() { + throw new Error("length accessor called"); + } + }); + assertEq(arr[method].length, 1); + assertEq(arr[method](v => v === 3), 3); + assertEq(arr[method](v => v === 6), method === "find" ? undefined : -1); + + var thisValues = [undefined, null, true, 1, "foo", [], {}]; + if (typeof Symbol == "function") + thisValues.push(Symbol()); + + thisValues.forEach(thisArg => + assertThrowsInstanceOf(() => arr[method].call(thisArg, () => true), TypeError) + ); + + assertThrowsInstanceOf(() => arr[method](), TypeError); + assertThrowsInstanceOf(() => arr[method](1), TypeError); + }); +}); + +anyTypedArrayConstructors.filter(isFloatConstructor).forEach(constructor => { + var arr = new constructor([-0, 0, 1, 5, NaN, 6]); + assertEq(arr.find(v => Number.isNaN(v)), NaN); + assertEq(arr.findIndex(v => Number.isNaN(v)), 4); + + assertEq(arr.find(v => Object.is(v, 0)), 0); + assertEq(arr.findIndex(v => Object.is(v, 0)), 1); + + assertEq(arr.find(v => Object.is(v, -0)), -0); + assertEq(arr.findIndex(v => Object.is(v, -0)), 0); +}) + + +if (typeof reportCompare === "function") + reportCompare(true, true); |