const FAKE_MIDDLEWARE = 'foo';
jest.mock('body-parser', () => ({ json: () => FAKE_MIDDLEWARE }));
const proxyMiddleware = require('./middleware');

describe('Proxy Middleware', () => {
  it('should return only the proxy middleware when given empty options', () => {
    const options = {};
    const middlewares = proxyMiddleware(options);
    expect(middlewares).toHaveLength(1);
  });
  it('should return the proper number of middlewares based on configuration supplied', () => {
    const options = { parseJSON: true };
    const middlewares = proxyMiddleware(options);
    expect(middlewares).toHaveLength(2);
    expect(middlewares).toContainEqual(FAKE_MIDDLEWARE);
  });
});