ControllerTest_GET

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class Vezba_A_ExamControllerTest {

    @MockBean
    private ExamService mExamService;

    private static final Long EXAM_ID = 1l;

    private static final String STUDENT_ID = "sw61-2018";

    @Autowired
    private TestRestTemplate testRestTemplate;

    @Test
    public void applyForExam_ExamNotFoundException_404_NotFound() throws Exception {
        Mockito.when(mExamService.examApplication(STUDENT_ID, EXAM_ID)).thenThrow(ExamNotFoundException.class);

        String url = "/exams/" + EXAM_ID + "?identificationNumber=" + STUDENT_ID;

        ResponseEntity<ExamNotFoundException> responseEntity = testRestTemplate.getForEntity(url, ExamNotFoundException.class);

        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
        assertNotNull(responseEntity.getBody());
    }

    @Test
    public void applyForExam_StudentNotFoundException_404_NotFound() throws Exception {
        Mockito.when(mExamService.examApplication(STUDENT_ID, EXAM_ID)).thenThrow(StudentNotFoundException.class);

        String url = "/exams/" + EXAM_ID + "?identificationNumber=" + STUDENT_ID;

        ResponseEntity<StudentNotFoundException> responseEntity = testRestTemplate.getForEntity(url, StudentNotFoundException.class);

        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
        assertNotNull(responseEntity.getBody());
    }

    @Test
    public void applyForExam_InvalidDate_400_BadRequest() throws Exception {
        Mockito.when(mExamService.examApplication(STUDENT_ID, EXAM_ID)).thenReturn(false);
        String url = "/exams/" + EXAM_ID + "?identificationNumber=" + STUDENT_ID;
        ResponseEntity<Boolean> responseEntity = testRestTemplate.getForEntity(url, Boolean.class);
        assertEquals(HttpStatus.BAD_REQUEST, responseEntity.getStatusCode());
        assertNotNull(responseEntity.getBody());
        assertFalse(responseEntity.getBody());
    }

    @Test
    public void applyForExam_200_OK() throws Exception {
        Mockito.when(mExamService.examApplication(STUDENT_ID, EXAM_ID)).thenReturn(true);
        String url = "/exams/" + EXAM_ID + "?identificationNumber=" + STUDENT_ID;
        ResponseEntity<Boolean> responseEntity = testRestTemplate.getForEntity(url, Boolean.class);
        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
        assertNotNull(responseEntity.getBody());
        assertTrue(responseEntity.getBody());
    }
}