arrayContainsObject-test.js

jest.dontMock('../arrayContainsObject');

let localCount = 0;
const mockObject = function (className, id) {
  this.className = className;
  this.id = id;
  if (!id) {
    this._localId = 'local' + localCount++;
  }
};
mockObject.prototype._getId = function () {
  return this.id || this._localId;
};
jest.setMock('../ParseObject', {
  __esModule: true,
  default: mockObject,
});

const arrayContainsObject = require('../arrayContainsObject').default;
const ParseObject = require('../ParseObject').default;
const CoreManager = require('../CoreManager').default;
jest
  .spyOn(CoreManager, 'getParseObject')
  .mockImplementation(() => require('../ParseObject').default);

describe('arrayContainsObject', () => {
  it('detects objects by their id', () => {
    const o = new ParseObject('Item');
    expect(arrayContainsObject([], o)).toBe(false);
    expect(arrayContainsObject([1, 'string'], o)).toBe(false);
    expect(arrayContainsObject([o], o)).toBe(true);
    expect(arrayContainsObject([new ParseObject('Item')], new ParseObject('Item'))).toBe(false);
    expect(
      arrayContainsObject(
        [new ParseObject('Item', 'a'), new ParseObject('Item', 'b')],
        new ParseObject('Item', 'a')
      )
    ).toBe(true);
  });
});