Spring IT test fails

Question

I have added a new querydsl controller method in my spring (not spring boot) application.

@GetMapping("/watcher")
@ResponseBody
public List<Watcher> getWatchers(final Predicate predicate) {
  return repo.findAll(predicate);
}

I have also added the following annotation in my WebMvcConfigurer implementation:

@EnableSpringDataWebSupport

The application works with this new endpoint as intented. I would now like to add a Spring IT test to test this new feature.

This is the test:

@Test
public void test() {
  mvc.perform(get("/watcher"));
}

The test class contains the following annotations:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = SpringITConfig.class)
@WebAppConfiguration

Other tests are present in the same class, and perform() works for those, but it's the first time I'm adding a test to a querydsl controller.

The test fails with No primary or default constructor found for interface com.querydsl.core.types.Predicate.

I tried adding the annotation @EnableSpringDataWebSupport to my test, but it doesn't change anything.

What am I missing ?

Thanks

Answer 1

Try removing your @ContextConfiguration and replace it with @SpringApplicationConfiguration(classes = YOUR_MAIN_APP_CLASS) to bootstrap all the needed querydsl repositories, and also the correct jackson mapper for your predicate class.