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12 lines
484 B
JavaScript
12 lines
484 B
JavaScript
test("basic functionality", () => {
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expect(Math.atan).toHaveLength(1);
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expect(Math.atan(0)).toBe(0);
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expect(Math.atan(-0)).toBe(-0);
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expect(Math.atan(NaN)).toBeNaN();
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expect(Math.atan(-2)).toBeCloseTo(-1.1071487177940904);
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expect(Math.atan(2)).toBeCloseTo(1.1071487177940904);
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expect(Math.atan(Infinity)).toBeCloseTo(Math.PI / 2);
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expect(Math.atan(-Infinity)).toBeCloseTo(-Math.PI / 2);
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expect(Math.atan(0.5)).toBeCloseTo(0.4636476090008061);
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});
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