2020-07-04 14:09:48 -03:00
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test("basic functionality", () => {
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2020-07-06 11:37:45 -03:00
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expect(Math.abs).toHaveLength(1);
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2020-04-13 14:31:13 -03:00
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2020-07-06 11:37:45 -03:00
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expect(Math.abs("-1")).toBe(1);
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expect(Math.abs(-2)).toBe(2);
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expect(Math.abs(null)).toBe(0);
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expect(Math.abs("")).toBe(0);
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expect(Math.abs([])).toBe(0);
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expect(Math.abs([2])).toBe(2);
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expect(Math.abs([1, 2])).toBeNaN();
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expect(Math.abs({})).toBeNaN();
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expect(Math.abs("string")).toBeNaN();
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expect(Math.abs()).toBeNaN();
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2020-07-04 14:09:48 -03:00
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});
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