message: test: Run tests on different ports.
diff: @@ -33,7 +33,7 @@ describe('SimpleWebSocketHandler', (): void => {
  webSocketHandler = new SimpleWebSocketHandler();
  const httpServerFactory = new ExpressHttpServerFactory(httpHandler);
  const webSocketServerFactory = new WebSocketServerFactory(httpServerFactory, webSocketHandler);
  - server = webSocketServerFactory.startServer(5555);
  + server = webSocketServerFactory.startServer(5556);
  });
  afterAll(async(): Promise<void> => {
  @@ -46,9 +46,9 @@ describe('SimpleWebSocketHandler', (): void => {
  });
  it('has a functioning WebSockets interface.', async(): Promise<void> => {
  - const client = new WebSocket('ws://localhost:5555');
  + const client = new WebSocket('ws://localhost:5556');
  const text = await new Promise((resolve): any => client.on('message', resolve));
  expect(text).toBe('SimpleWebSocketHandler');
  - expect(webSocketHandler.host).toBe('localhost:5555');
  + expect(webSocketHandler.host).toBe('localhost:5556');
  });
  });
  