11 lines
463 B
JavaScript
11 lines
463 B
JavaScript
const expect = require('expect');
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const differenceBy = require('./differenceBy.js');
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test('Testing differenceBy', () => {
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//For more information on all the methods supported by tape
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//Please go to https://github.com/substack/tape
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expect(typeof differenceBy === 'function').toBeTruthy();
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expect(differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor)).toEqual([1.2]);
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expect(differenceBy([{ x: 2 }, { x: 1 }], [{ x: 1 }], v => v.x)).toEqual([ { x: 2 } ]);
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});
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