60 lines
1.7 KiB
JavaScript
60 lines
1.7 KiB
JavaScript
test("invariants", () => {
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expect(Atomics.add).toHaveLength(3);
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});
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test("error cases", () => {
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expect(() => {
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Atomics.add("not an array", 0, 1);
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}).toThrow(TypeError);
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expect(() => {
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const bad_array_type = new Float32Array(4);
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Atomics.add(bad_array_type, 0, 1);
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}).toThrow(TypeError);
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expect(() => {
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const bad_array_type = new Uint8ClampedArray(4);
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Atomics.add(bad_array_type, 0, 1);
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}).toThrow(TypeError);
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expect(() => {
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const array = new Int32Array(4);
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Atomics.add(array, 100, 1);
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}).toThrow(RangeError);
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});
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test("basic functionality (non-BigInt)", () => {
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[Int8Array, Int16Array, Int32Array, Uint8Array, Uint16Array, Uint32Array].forEach(ArrayType => {
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const array = new ArrayType(4);
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expect(Atomics.add(array, 0, 1)).toBe(0);
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expect(array).toEqual([1, 0, 0, 0]);
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expect(Atomics.add(array, 0, 1)).toBe(1);
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expect(array).toEqual([2, 0, 0, 0]);
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expect(Atomics.add(array, 2, 3.14)).toBe(0);
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expect(array).toEqual([2, 0, 3, 0]);
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expect(Atomics.add(array, 3, "1")).toBe(0);
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expect(array).toEqual([2, 0, 3, 1]);
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});
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});
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test("basic functionality (BigInt)", () => {
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[BigInt64Array, BigUint64Array].forEach(ArrayType => {
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const array = new ArrayType(4);
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expect(Atomics.add(array, 0, 1n)).toBe(0n);
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expect(array).toEqual([1n, 0n, 0n, 0n]);
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expect(Atomics.add(array, 0, 1n)).toBe(1n);
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expect(array).toEqual([2n, 0n, 0n, 0n]);
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expect(Atomics.add(array, 2, 3n)).toBe(0n);
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expect(array).toEqual([2n, 0n, 3n, 0n]);
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expect(Atomics.add(array, 3, 4n)).toBe(0n);
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expect(array).toEqual([2n, 0n, 3n, 4n]);
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});
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});
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