GWT RPC GWTTestCase + GUICE 2.0 - gwt

Question

Im trying to create an app with the GWT on the front end and GUICE on the backend served on the Google App Engine.
I have created a very simple app using the example setup
http://stuffthathappens.com/blog/2009/09/14/guice-with-gwt/#comment-49355
The app works fine, however I wanted to add some unit tests for the GWT RPC calls.
I am trying to use the GWTTestCase as below:
`public void testContactMessageService() {
ContactMessage message = new ContactMessage();
message.setName("Jeff");
message.setMessage("Just wanted to say I'm a fan.");
message.setEmail("man.nick.utd#gmail.com");
ContactMessageServiceAsync contactMessageService = GWT.create(ContactMessageService.class);
contactMessageService.sendMessage(message,
new AsyncCallback<String>() {
public void onFailure(Throwable caught) {
// Show the RPC error message to the user
System.out.println(caught);
fail("big time failure");
finishTest();
}
public void onSuccess(String result) {
System.out.println("success, biatch");
assertTrue(true);
finishTest();
}
});
delayTestFinish(1000);
}
`/**
However when I run the test it fails and on the console it prints
[WARN] 404 - POST /com.resume.Contacthandler.JUnit/GWT.rpc (192.168.0.11) 1425 bytes
Request headers
Host: 192.168.0.11:4016
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.19) Gecko/2010031422 Firefox/3.0.19
Accept-Language: en-us
Accept: /
Connection: Keep-Alive
Referer: 192.168.0.11:4016/com.resume.Contacthandler.JUnit/junit.html?gwt.codesvr=192.168.0.11:4012
X-GWT-Permutation: HostedMode
X-GWT-Module-Base: 192.168.0.11:4016/com.resume.Contacthandler.JUnit/
Content-Type: text/x-gwt-rpc; charset=utf-8
Content-Length: 285
Response headers
Content-Type: text/html; charset=iso-8859-1
Content-Length: 1425
com.google.gwt.user.client.rpc.StatusCodeException: 404
HTTP ERROR: 404 NOT_FOUND
RequestURI=/com.resume.Contacthandler.JUnit/GWT.rpc
From this output I am assuming something on the server side with Guice is not getting setup.
How do you setup the server side Guice servlets when running GWTTestCases ?

Answer 1

There are much simpler ways to get Guice and GWT working other than the approach in the stuffthathappens blog. For instance, the following code is most of what you'd need to do to get a servlet up and running. This doesn't touch any GWT code so it's easy to test with pure JRE tests - you'd just need to set up a test injector and get an instance of the Service Impl.
serve("/myapp/importservice").with(SourceImportServiceImpl.class);
#Singleton
public class SourceImportServiceImpl extends RemoteServiceServlet {
private Provider<SimpleDao> daoProvider;
#Inject
public SourceImportServiceImpl(Provider<SimpleDao> daoProvider) {
this.daoProvider = daoProvider;
}
... RPC method implementations
}