| 1 | import * as app from "./index";
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| 2 | import * as math from "./math";
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| 3 |
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| 4 | math.add = jest.fn();
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| 5 | math.subtract = jest.fn();
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| 6 |
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| 7 | test("calls math.add", () => {
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| 8 | app.doAdd(1, 2);
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| 9 | expect(math.add).toHaveBeenCalledWith(1, 2);
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| 10 | });
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| 11 |
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| 12 | test("calls math.subtract", () => {
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| 13 | app.doSubtract(1, 2);
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| 14 | expect(math.subtract).toHaveBeenCalledWith(1, 2);
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| 15 | });
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