12 lines
376 B
JavaScript
12 lines
376 B
JavaScript
const expect = require('expect');
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const differenceWith = require('./differenceWith.js');
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test('differenceWith is a Function', () => {
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expect(differenceWith).toBeInstanceOf(Function);
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});
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test('Filters out all values from an array', () => {
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expect(
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differenceWith([1, 1.2, 1.5, 3, 0], [1.9, 3, 0], (a, b) => Math.round(a) === Math.round(b))
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).toEqual([1, 1.2]);
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});
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