17 lines
360 B
JavaScript
17 lines
360 B
JavaScript
const expect = require('expect');
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const attempt = require('./attempt.js');
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test('attempt is a Function', () => {
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expect(attempt).toBeInstanceOf(Function);
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});
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test('Returns a value', () => {
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expect(attempt(() => 0)).toBe(0);
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});
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test('Returns an error', () => {
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expect(
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attempt(() => {
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throw new Error();
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})
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).toBeInstanceOf(Error);
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});
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