EmptyRequestProto emptyRequest = EmptyRequestProto.newBuilder().build();
client.ping(null, emptyRequest);
// Test echo method
EchoRequestProto echoRequest = EchoRequestProto.newBuilder().setMessage("hello").build();
EchoResponseProto echoResponse = client.echo(null, echoRequest);
Assert.assertEquals(echoResponse.getMessage(), "hello");
// Test error method - error should be thrown as RemoteException
try {
client.error(null, emptyRequest);
Assert.fail("Expected exception is not thrown");