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LibJS: Implement Atomics.and

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Timothy Flynn 2021-07-11 14:10:43 -04:00 • committed by Linus Groh
parent 940875c9fd
commit 2d3af5c1b4
4 changed files with 91 additions and 0 deletions
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70
Userland/Libraries/LibJS/Tests/builtins/Atomics/Atomics.and.js Normal file
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test("invariants", () => {
expect(Atomics.and).toHaveLength(3);
});
test("error cases", () => {
expect(() => {
Atomics.and("not an array", 0, 1);
}).toThrow(TypeError);
expect(() => {
const bad_array_type = new Float32Array(4);
Atomics.and(bad_array_type, 0, 1);
}).toThrow(TypeError);
expect(() => {
const bad_array_type = new Uint8ClampedArray(4);
Atomics.and(bad_array_type, 0, 1);
}).toThrow(TypeError);
expect(() => {
const array = new Int32Array(4);
Atomics.and(array, 100, 1);
}).toThrow(RangeError);
});
test("basic functionality (non-BigInt)", () => {
[Int8Array, Int16Array, Int32Array, Uint8Array, Uint16Array, Uint32Array].forEach(ArrayType => {
const array = new ArrayType(2);
array[0] = 0b0000;
array[1] = 0b0101;
expect(Atomics.and(array, 0, 0b0000)).toBe(0b0000);
expect(array).toEqual([0b0000, 0b0101]);
expect(Atomics.and(array, 0, 0b1111)).toBe(0b0000);
expect(array).toEqual([0b0000, 0b0101]);
expect(Atomics.and(array, 1, 0b0101)).toBe(0b0101);
expect(array).toEqual([0b0000, 0b0101]);
expect(Atomics.and(array, 1, 0b0100)).toBe(0b0101);
expect(array).toEqual([0b0000, 0b0100]);
expect(Atomics.and(array, 1, 0b0000)).toBe(0b0100);
expect(array).toEqual([0b0000, 0b0000]);
});
});
test("basic functionality (BigInt)", () => {
[BigInt64Array, BigUint64Array].forEach(ArrayType => {
const array = new ArrayType(2);
array[0] = 0b0000n;
array[1] = 0b0101n;
expect(Atomics.and(array, 0, 0b0000n)).toBe(0b0000n);
expect(array).toEqual([0b0000n, 0b0101n]);
expect(Atomics.and(array, 0, 0b1111n)).toBe(0b0000n);
expect(array).toEqual([0b0000n, 0b0101n]);
expect(Atomics.and(array, 1, 0b0101n)).toBe(0b0101n);
expect(array).toEqual([0b0000n, 0b0101n]);
expect(Atomics.and(array, 1, 0b0100n)).toBe(0b0101n);
expect(array).toEqual([0b0000n, 0b0100n]);
expect(Atomics.and(array, 1, 0b0000n)).toBe(0b0100n);
expect(array).toEqual([0b0000n, 0b0000n]);
});
});