how to extend MockWebServiceServer to perform other assertions? - spring

Question

I have a flow that ends with sending a SOAP request. I'd like to write some kind of integration tests, for which I give 10 elements in input, and after going through the flow, I validate that 4 requests were fired for the 4 elements I expect (the 6 others got filtered and didn't make it through).
I'm using WebServiceTemplate, and I've read about MockWebServiceServer, but I am not sure it allows to do it out of the box. I'd like to maybe extend it, so that all sent requests are saved in a List that I can access to perform the assertions. I've looked at the source code, of MockWebServiceServer / MockWebServiceMessageSender but I don't see where I would do it.
Any ideas of how to achieve this ?
Thanks

Answer 1

One way of doing this is to extend RequestMatcher, not MockWebServiceServer. Here's an example of the class :
public class NeverFailingRequestMatcherWithMemory implements RequestMatcher {
List<WebServiceMessage> sentRequests=new ArrayList<WebServiceMessage>();
#Override
public void match(URI uri, WebServiceMessage request) throws IOException, AssertionError {
sentRequests.add(request);
}
public void clearMemory(){
sentRequests.clear();
}
public List<WebServiceMessage> getSentRequests(){
return sentRequests;
}
}
And you use it like this in your tests :
NeverFailingRequestMatcherWithMemory matcherWithMemory=new NeverFailingRequestMatcherWithMemory();
#Before
public void configureMockWsServer() {
WebServiceTemplate usedWebServiceTemplate = appCtx.getBean(WebServiceTemplate.class);
mockServer = MockWebServiceServer.createServer(usedWebServiceTemplate);
matcherWithMemory.clearMemory();
}
and later in your tests, something like :
mockServer.expect(matcherWithMemory).andRespond(withPayload(someResponsePayload));
assertThat(matcherWithMemory.getSentRequests()).hasSize(1);
Then you have access to the requests that were sent and can parse them the way you want.