Remove the custom AbstractWebIntegrationTests as they prevent Boot's default configuration from kicking in and it also fails to set up MockMvc to work with @WithMockUser properly.
hasRole(…) doesn't need any ROLE_ prefixes.
Suggested steps:
Switch to @SpringBootTest and @AutoConfigureWebMvc
Switch to @WithMockUser for security related interactions
Some useful tips from @rwinch:
AbstractWebIntegrationTestsas they prevent Boot's default configuration from kicking in and it also fails to set upMockMvcto work with@WithMockUserproperly.hasRole(…)doesn't need anyROLE_prefixes.Suggested steps:
@SpringBootTestand@AutoConfigureWebMvc@WithMockUserfor security related interactions