10 lines
356 B
JavaScript
10 lines
356 B
JavaScript
const expect = require('expect');
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const pickBy = require('./pickBy.js');
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test('pickBy is a Function', () => {
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expect(pickBy).toBeInstanceOf(Function);
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});
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test('Creates an object composed of the properties the given function returns truthy for.', () => {
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expect(pickBy({ a: 1, b: '2', c: 3 }, x => typeof x === 'number')).toEqual({ a: 1, c: 3 });
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});
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