text: /*
   * Copyright 2019 American Express Travel Related Services Company, Inc.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   * in compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License
   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,either express
   * or implied. See the License for the specific language governing permissions and limitations
   * under the License.
   */
  
  import applyCustomMiddleware from '../../src/applyCustomMiddleware';
  
  const customMiddlewarePath = '/dev/customMiddleware';
  jest.mock('/dev/customMiddleware', () => jest.fn(), { virtual: true });
  
  describe('applyCustomMiddleware', () => {
    const consoleWarnSpy = jest.spyOn(console, 'warn').mockImplementation(() => null);
    jest.spyOn(console, 'log').mockImplementation(() => null);
    const app = { use: jest.fn() };
  
    beforeEach(() => {
      jest.clearAllMocks();
      jest.resetModules();
    });
  
    it('should not log a warning when it can load scenarios', () => {
      applyCustomMiddleware(app, customMiddlewarePath);
      expect(consoleWarnSpy).not.toHaveBeenCalled();
    });
  
    it('should run the custom middleware config if it is an es6 module that has been transpiled down', () => {
      const customMiddlewareConfig = { __esModule: true, default: jest.fn() };
      jest.doMock(customMiddlewarePath, () => customMiddlewareConfig, { virtual: true });
      applyCustomMiddleware(app, customMiddlewarePath);
      expect(customMiddlewareConfig.default).toHaveBeenCalled();
    });
  
    it('should run the custom middleware config if it is a common module', () => {
      const customMiddlewareConfig = jest.fn();
      jest.doMock(customMiddlewarePath, () => customMiddlewareConfig, { virtual: true });
      applyCustomMiddleware(app, customMiddlewarePath);
      expect(customMiddlewareConfig).toHaveBeenCalled();
    });
  
    it('should throw when it can\'t load the middleware', () => {
      jest.doMock(customMiddlewarePath, () => { throw new Error('test'); }, { virtual: true });
      expect(() => applyCustomMiddleware(app, customMiddlewarePath)).toThrow();
    });
  });
  