TesterProgrammaticEndpoint.class,
clientEndpointConfig,
new URI("wss://localhost:" + getPort() +
TesterEchoServer.Config.PATH_ASYNC));
CountDownLatch latch = new CountDownLatch(1);
BasicText handler = new BasicText(latch);
wsSession.addMessageHandler(handler);
wsSession.getBasicRemote().sendText(MESSAGE_STRING_1);
boolean latchResult = handler.getLatch().await(10, TimeUnit.SECONDS);
Assert.assertTrue(latchResult);
Queue<String> messages = handler.getMessages();
Assert.assertEquals(1, messages.size());
Assert.assertEquals(MESSAGE_STRING_1, messages.peek());
}