@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
public class addAnswerControllerTest {

    @Autowired
    private QuestionRepo questionRepo;
    @Autowired
    private AnswerRepo answerRepo;
    @Autowired
    TestRestTemplate restTemplate;
    @Autowired
    EntityManager manager;

    @Before
    public void setUp() throws Exception {
        [color=yellow]manager.createQuery("ALTER SEQUENCE hibernate_sequence RESTART WITH 1").executeUpdate();[/color]
        Question q1 = new Question();
        q1.setText("aaa");
        Question q2 = new Question();
        q2.setText("bbb");
        Question q3 = new Question();
        q3.setText("ссс");
        questionRepo.save(q1);
        questionRepo.save(q2);
        questionRepo.save(q3);

    }

    @After
    public void tearDown() throws Exception {
        answerRepo.deleteAll();
        questionRepo.deleteAll();
    }

    @Test
    public void editAnswer() {
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
        MultiValueMap<String,String>map=new LinkedMultiValueMap<String, String>();
        map.add("idQ","1");
        map.add("answ","test text");
        map.add("b","true");
        HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<MultiValueMap<String, String>>(map, headers);
        ResponseEntity<String> response = restTemplate.postForEntity( "http://localhost:8080/addanswer", request , String.class );
        assertThat(questionRepo.findAll().size(),is(3));
        assertThat(questionRepo.findById(2L).get().getText(),is("bbb"));
        assertThat(questionRepo.findById(1L).get().getAnswerList().size(),is(1));
        assertTrue(questionRepo.findById(1L).get().getAnswerList().get(0).getAnswerText().equalsIgnoreCase("test text"));

    }
}

assertThat(questionRepo.findById(2L).get().getText(),is("bbb"));
        assertThat(questionRepo.findById(1L).get().getAnswerList().size(),is(1));
        assertTrue(questionRepo.findById(1L).get().getAnswerList().get(0).getAnswerText().equalsIgnoreCase("test text"));

@Autowired
    EntityManager manager;

    @Before
    public void setUp() throws Exception {
        manager.createQuery("drop database integrationtest").executeUpdate();

java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected token: drop near line 1, column 1 [drop database integrationtest]

DROP sequence ....;
CREATE sequence ....;