32 lines
974 B
JavaScript
32 lines
974 B
JavaScript
test("constructor properties", () => {
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expect(Boolean).toHaveLength(1);
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expect(Boolean.name).toBe("Boolean");
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});
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test("typeof", () => {
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expect(typeof new Boolean()).toBe("object");
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expect(typeof Boolean()).toBe("boolean");
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expect(typeof Boolean(true)).toBe("boolean");
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});
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test("basic functionality", () => {
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var foo = new Boolean(true);
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var bar = new Boolean(true);
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expect(foo).not.toBe(bar);
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expect(foo.valueOf()).toBe(bar.valueOf());
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expect(Boolean()).toBeFalse();
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expect(Boolean(false)).toBeFalse();
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expect(Boolean(null)).toBeFalse();
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expect(Boolean(undefined)).toBeFalse();
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expect(Boolean(NaN)).toBeFalse();
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expect(Boolean("")).toBeFalse();
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expect(Boolean(0.0)).toBeFalse();
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expect(Boolean(-0.0)).toBeFalse();
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expect(Boolean(true)).toBeTrue();
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expect(Boolean("0")).toBeTrue();
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expect(Boolean({})).toBeTrue();
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expect(Boolean([])).toBeTrue();
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expect(Boolean(1)).toBeTrue();
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});
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