| 1 | import ExpoRandom from '../ExpoRandom';
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| 2 | import * as Random from '../Random';
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| 3 |
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| 4 | it(`invokes native method correctly`, async () => {
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| 5 | ExpoRandom.getRandomBase64StringAsync.mockImplementationOnce(async () => '');
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| 6 | const value = await Random.getRandomBytesAsync(0);
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| 7 | expect(value instanceof Uint8Array).toBe(true);
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| 8 | expect(ExpoRandom.getRandomBase64StringAsync).toHaveBeenLastCalledWith(0);
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| 9 | });
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| 10 |
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| 11 | it(`returns an array with the desired number of bytes`, async () => {
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| 12 | ExpoRandom.getRandomBase64StringAsync.mockImplementationOnce(async () => 'r6ip');
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| 13 | const value = await Random.getRandomBytesAsync(3);
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| 14 | expect(value.length).toBe(3);
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| 15 | });
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| 16 |
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| 17 | it(`asserts invalid byte count errors`, async () => {
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| 18 | await expect(Random.getRandomBytesAsync(-1)).rejects.toThrowError(TypeError);
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| 19 | await expect(Random.getRandomBytesAsync(1025)).rejects.toThrowError(TypeError);
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| 20 | await expect(Random.getRandomBytesAsync('invalid' as any)).rejects.toThrowError(TypeError);
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| 21 | await expect(Random.getRandomBytesAsync(null as any)).rejects.toThrowError(TypeError);
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| 22 | await expect(Random.getRandomBytesAsync({} as any)).rejects.toThrowError(TypeError);
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| 23 | await expect(Random.getRandomBytesAsync(NaN)).rejects.toThrowError(TypeError);
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| 24 | });
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| 25 |
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| 26 | it(`accepts valid byte counts`, async () => {
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| 27 | await expect(Random.getRandomBytesAsync(0));
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| 28 | await expect(Random.getRandomBytesAsync(1024));
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| 29 | await expect(Random.getRandomBytesAsync(512.5));
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| 30 | });
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