16 lines
635 B
JavaScript
16 lines
635 B
JavaScript
const expect = require('expect');
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const {invertKeyValues} = require('./_30s.js');
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test('invertKeyValues is a Function', () => {
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expect(invertKeyValues).toBeInstanceOf(Function);
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});
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test("invertKeyValues({ a: 1, b: 2, c: 1 }) returns { 1: [ 'a', 'c' ], 2: [ 'b' ] }", () => {
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expect(invertKeyValues({ a: 1, b: 2, c: 1 })).toEqual({ 1: ['a', 'c'], 2: ['b'] });
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});
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test("invertKeyValues({ a: 1, b: 2, c: 1 }, value => 'group' + value) returns { group1: [ 'a', 'c' ], group2: [ 'b' ] }", () => {
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expect(invertKeyValues({ a: 1, b: 2, c: 1 }, value => 'group' + value)).toEqual({
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group1: ['a', 'c'],
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group2: ['b']
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});
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});
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