32 lines
635 B
JavaScript
32 lines
635 B
JavaScript
const {dig} = require('./_30s.js');
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const data = {
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level1: {
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level2: {
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level3: 'some data',
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level3f: false,
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level3a: [1, 2, 3, 4]
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}
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}
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};
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test('dig is a Function', () => {
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expect(dig).toBeInstanceOf(Function);
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});
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test('Dig target success', () => {
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expect(dig(data, 'level3')).toEqual('some data');
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});
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test('Dig target with falsy value', () => {
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expect(dig(data, 'level3f')).toEqual(false);
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});
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test('Dig target with array', () => {
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expect(dig(data, 'level3a')).toEqual([1, 2, 3, 4]);
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});
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test('Unknown target return undefined', () => {
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expect(dig(data, 'level4')).toEqual(undefined);
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});
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