19 lines
425 B
JavaScript
19 lines
425 B
JavaScript
const expect = require('expect');
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const {findKey} = require('./_30s.js');
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test('findKey is a Function', () => {
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expect(findKey).toBeInstanceOf(Function);
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});
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test('Returns the appropriate key', () => {
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expect(
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findKey(
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{
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barney: { age: 36, active: true },
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fred: { age: 40, active: false },
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pebbles: { age: 1, active: true }
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},
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o => o['active']
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)
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).toBe('barney');
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});
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