{
Assume.assumeTrue("Server has x-webkit-deflate-frame registered",
server.getWebSocketServletFactory().getExtensionFactory().isAvailable("permessage-deflate"));
BlockheadClient client = new BlockheadClient(server.getServerUri());
client.clearExtensions();
client.addExtensions("permessage-deflate");
client.setProtocols("echo");
try
{