10 lines
285 B
JavaScript
10 lines
285 B
JavaScript
const expect = require('expect');
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const unionBy = require('./unionBy.js');
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test('unionBy is a Function', () => {
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expect(unionBy).toBeInstanceOf(Function);
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});
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test('Produces the appropriate results', () => {
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expect(unionBy([2.1], [1.2, 2.3], Math.floor)).toEqual([2.1, 1.2]);
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});
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