I have a Spring 3.2 MVC application and am using the Spring MVC test framework to test GET and POST requests on the actions of my controllers. I am using Mockito to mock the
You're creating a mock for PolicyService, but you're not injecting it into your MockMvc as far as I can tell. This means that the PolicyService defined in your Spring configuration will be called instead of your mock.
Either inject the mock of the PolicyService into your MockMvc by setting it, or take a look at Springockito for injecting mocks.