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28 lines
1.4 KiB
JavaScript
28 lines
1.4 KiB
JavaScript
test("basic functionality", () => {
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expect(Math.atan2).toHaveLength(2);
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expect(Math.atan2(90, 15)).toBeCloseTo(1.4056476493802699);
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expect(Math.atan2(15, 90)).toBeCloseTo(0.16514867741462683);
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expect(Math.atan2(+0, -0)).toBeCloseTo(Math.PI);
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expect(Math.atan2(-0, -0)).toBeCloseTo(-Math.PI);
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expect(Math.atan2(+0, +0)).toBe(0);
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expect(Math.atan2(-0, +0)).toBe(-0);
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expect(Math.atan2(+0, -1)).toBeCloseTo(Math.PI);
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expect(Math.atan2(-0, -1)).toBeCloseTo(-Math.PI);
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expect(Math.atan2(+0, 1)).toBe(0);
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expect(Math.atan2(-0, 1)).toBe(-0);
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expect(Math.atan2(-1, +0)).toBeCloseTo(-Math.PI / 2);
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expect(Math.atan2(-1, -0)).toBeCloseTo(-Math.PI / 2);
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expect(Math.atan2(1, +0)).toBeCloseTo(Math.PI / 2);
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expect(Math.atan2(1, -0)).toBeCloseTo(Math.PI / 2);
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expect(Math.atan2(1, -Infinity)).toBeCloseTo(Math.PI);
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expect(Math.atan2(-1, -Infinity)).toBeCloseTo(-Math.PI);
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expect(Math.atan2(1, +Infinity)).toBe(0);
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expect(Math.atan2(-1, +Infinity)).toBe(-0);
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expect(Math.atan2(+Infinity, 1)).toBeCloseTo(Math.PI / 2);
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expect(Math.atan2(-Infinity, 1)).toBeCloseTo(-Math.PI / 2);
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expect(Math.atan2(+Infinity, -Infinity)).toBeCloseTo((3 * Math.PI) / 4);
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expect(Math.atan2(-Infinity, -Infinity)).toBeCloseTo((-3 * Math.PI) / 4);
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expect(Math.atan2(+Infinity, +Infinity)).toBeCloseTo(Math.PI / 4);
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expect(Math.atan2(-Infinity, +Infinity)).toBeCloseTo(-Math.PI / 4);
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});
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