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15 lines
409 B
JavaScript
15 lines
409 B
JavaScript
import subtract from '../src/subtract';
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describe('subtract', () => {
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it('should subtract two numbers', () => {
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expect(subtract(6, 4)).toBe(2);
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expect(subtract(-6, 4)).toBe(-10);
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expect(subtract(-6, -4)).toBe(-2);
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});
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it('should coerce arguments to numbers', () => {
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expect(subtract('6', '4')).toBe(2);
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expect(subtract('x', 'y')).toEqual(NaN);
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});
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});
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