vcc-ui/_src/rename-keys.test.js

VCC UI is a collection of React UI Components that can be used for developing front-end applications at Volvo Car Corporation.

import { renameKeys } from './rename-keys';

describe('renameKeys()', () => {
  it('performs an immutable renaming of keys on a given object', () => {
    const mock = {
      foo: 128,
      bar: 256,
    };

    const result = renameKeys({
      foo: 'FOO',
      bar: 'bar-new',
    })(mock);

    expect(result).toEqual({
      FOO: 128,
      'bar-new': 256,
    });

    expect(mock).toEqual({
      foo: 128,
      bar: 256,
    });
  });

  it('curries', () => {
    const mock1 = {
      foo: 128,
      bar: 256,
    };

    const mock2 = {
      foo: 256,
      qux: 512,
    };

    const curried = renameKeys({
      foo: 'boo',
      bar: 'BAR',
    });

    expect(typeof curried).toEqual('function');

    expect(curried(mock1)).toEqual({
      boo: 128,
      BAR: 256,
    });

    expect(curried(mock2)).toEqual({
      boo: 256,
      qux: 512,
    });
  });
});