We have some logic in an HttpSessionListener
that we'd like to test. We're using Spring MVC and the associated testing framework, with MockMvc
and so on. Unfortunately, we haven't found a way to get the listener initialized so that when a session is created or destroyed the appropriate listener methods are called.
I have tried to add the listener programmatically rather than using web.xml
(as described in this question) and this works fine when running in a Servlet 3.0 container. But when running with Spring Test it all goes wrong, as the MockServletContext
does not support the addListener
method, and so throws an exception.
Is there any way to test such listeners without using integration testing?
The Servlet container decides when to dispatch events to the
HttpSessionListener
. This is not necessarily right after a session created or destroyed. Because this depends on the container implementation, you can't depend on the unit test. Integration testing is the way to go.You can always unit test those
HttpSessionListener
implementationsoutside the context of your application.