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26 lines
1,015 B
JavaScript
26 lines
1,015 B
JavaScript
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test("invariants", () => {
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expect(Atomics.isLockFree).toHaveLength(1);
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});
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test("basic functionality", () => {
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expect(Atomics.isLockFree(4)).toBeTrue();
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// Can't assume the return value of sizes 1, 2, and 8, but they shouldn't change.
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expect(Atomics.isLockFree(1)).toBe(Atomics.isLockFree(1));
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expect(Atomics.isLockFree(2)).toBe(Atomics.isLockFree(2));
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expect(Atomics.isLockFree(8)).toBe(Atomics.isLockFree(8));
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expect(Atomics.isLockFree(0)).toBeFalse();
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expect(Atomics.isLockFree(3)).toBeFalse();
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expect(Atomics.isLockFree(5)).toBeFalse();
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expect(Atomics.isLockFree(6)).toBeFalse();
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expect(Atomics.isLockFree(7)).toBeFalse();
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expect(Atomics.isLockFree(9)).toBeFalse();
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expect(Atomics.isLockFree(10)).toBeFalse();
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expect(Atomics.isLockFree(Infinity)).toBeFalse();
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expect(Atomics.isLockFree("not a number")).toBeFalse();
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expect(Atomics.isLockFree(new Float32Array(4))).toBeFalse();
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expect(Atomics.isLockFree(String.prototype)).toBeFalse();
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});
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