text: /**
   * Copyright (c) 2013-present, Facebook, Inc.
   * All rights reserved.
   *
   * This source code is licensed under the BSD-style license found in the
   * LICENSE file in the root directory of this source tree. An additional grant
   * of patent rights can be found in the PATENTS file in the same directory.
   *
   */
  
  'use strict';
  
  jest
    .mock('../../vendor/core/ErrorUtils')
    .mock('../../BatchedBridge/BatchedBridge');
  
  function expectToBeCalledOnce(fn) {
    expect(fn.mock.calls.length).toBe(1);
  }
  
  describe('Batchinator', () => {
    const Batchinator = require('../Batchinator');
  
    it('executes vanilla tasks', () => {
      const callback = jest.fn();
      const batcher = new Batchinator(callback, 10000);
      batcher.schedule();
      jest.runAllTimers();
      expectToBeCalledOnce(callback);
    });
  
    it('batches up tasks', () => {
      const callback = jest.fn();
      const batcher = new Batchinator(callback, 10000);
      batcher.schedule();
      batcher.schedule();
      batcher.schedule();
      batcher.schedule();
      expect(callback).not.toBeCalled();
      jest.runAllTimers();
      expectToBeCalledOnce(callback);
    });
  
    it('flushes on dispose', () => {
      const callback = jest.fn();
      const batcher = new Batchinator(callback, 10000);
      batcher.schedule();
      batcher.schedule();
      batcher.dispose();
      expectToBeCalledOnce(callback);
      jest.runAllTimers();
      expectToBeCalledOnce(callback);
    });
  
    it('should call tasks scheduled by the callback', () => {
      let batcher = null;
      let hasRescheduled = false;
      const callback = jest.fn(() => {
        if (!hasRescheduled) {
          batcher.schedule();
          hasRescheduled = true;
        }
      });
      batcher = new Batchinator(callback, 10000);
      batcher.schedule();
      jest.runAllTimers();
      expect(callback.mock.calls.length).toBe(2);
    });
  
    it('does not run callbacks more than once', () => {
      const callback = jest.fn();
      const batcher = new Batchinator(callback, 10000);
      batcher.schedule();
      batcher.schedule();
      jest.runAllTimers();
      expectToBeCalledOnce(callback);
      jest.runAllTimers();
      expectToBeCalledOnce(callback);
      batcher.dispose();
      expectToBeCalledOnce(callback);
    });
  });
  