I have a Spring Boot 3.3 application which has a single endpoint accepting SOAP requests.

I am using a test class annotated with @WebServiceServerTest with an autowired MockWebServiceClient that makes requests as follows:

client.sendRequest(withSoapEnvelope(new StringSource(soapRequest)))
      .andExpect(noFault());

These requests succeed and the endpoint is called.

The problem is that I have a OncePerRequestFilter implementation which, if the request has gzip’d, will uncompress the request and pass it through. This needs testing, and I am unsure how to go about it.

I’ve tried to use @SpringBootTest and @AutoConfigureMockMvc, but it means I need to craft the SOAP request and send it – which feels like it makes tests fragile.

What options are there for this type of test?