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38 lines
1.2 KiB
JavaScript
38 lines
1.2 KiB
JavaScript
test("basic functionality", () => {
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expect(10 % 3).toBe(1);
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expect(10.5 % 2.5).toBe(0.5);
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expect(-0.99 % 0.99).toBe(-0);
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// Examples from MDN:
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
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expect(12 % 5).toBe(2);
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expect(-1 % 2).toBe(-1);
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expect(1 % -2).toBe(1);
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expect(1 % 2).toBe(1);
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expect(2 % 3).toBe(2);
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expect(-4 % 2).toBe(-0);
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expect(5.5 % 2).toBe(1.5);
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expect(NaN % 2).toBeNaN();
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expect(2 % NaN).toBeNaN();
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expect(NaN % NaN).toBeNaN();
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expect(Infinity % 1).toBeNaN();
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expect(-Infinity % 1).toBeNaN();
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expect(1 % Infinity).toBe(1);
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expect(1 % -Infinity).toBe(1);
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expect(1 % 0).toBeNaN();
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expect(1 % -0).toBeNaN();
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expect(0 % 5).toBe(0);
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expect(-0 % 5).toBe(-0);
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// test262 examples
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expect(1 % null).toBeNaN();
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expect(null % 1).toBe(0);
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expect(true % null).toBeNaN();
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expect(null % true).toBe(0);
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expect("1" % null).toBeNaN();
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expect(null % "1").toBe(0);
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expect(null % undefined).toBeNaN();
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expect(undefined % null).toBeNaN();
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expect(undefined % undefined).toBeNaN();
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expect(null % null).toBeNaN();
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});
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