@mapbox/mr-ui/utils/omit.test.js

UI components for Mapbox projects

"use strict";

var _omit = _interopRequireDefault(require("./omit"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
describe('omit', () => {
  test('empty arguments work', () => {
    expect((0, _omit.default)()).toEqual({});
    expect((0, _omit.default)({})).toEqual({});
    expect((0, _omit.default)(undefined, [])).toEqual({});
  });
  test('removes unwanted properties', () => {
    const original = {
      foo: 1,
      bar: 2
    };
    expect((0, _omit.default)(original, ['foo'])).toEqual({
      bar: 2
    });
    expect((0, _omit.default)(original, ['bar'])).toEqual({
      foo: 1
    });
    expect((0, _omit.default)(original, ['foo', 'bar'])).toEqual({});
    expect((0, _omit.default)(original, [])).toEqual({
      foo: 1,
      bar: 2
    });
  });
  test('does not confused similar properties', () => {
    const original = {
      foo: 1,
      foop: 2,
      'foo-bar': 3,
      afoo: 4
    };
    expect((0, _omit.default)(original, ['foo'])).toEqual({
      foop: 2,
      'foo-bar': 3,
      afoo: 4
    });
  });
  test('creates a new object', () => {
    const original = {
      foo: 1
    };
    const result = (0, _omit.default)(original, []);
    expect(result).toEqual({
      foo: 1
    });
    expect(result === original).toBe(false);
  });
  test('maintains references to objects', () => {
    const original = {
      foo: 1,
      bar: {
        baz: 3
      },
      baz: 4
    };
    const result = (0, _omit.default)(original, ['foo', 'baz']);
    expect(result).toEqual({
      bar: {
        baz: 3
      }
    });
    expect(result.bar === original.bar).toBe(true);
  });
});