Spring Boot v 2.4.2

Oi Sergio,

As versões mais novas do Spring Boot estão utilizando o JUnit 5, sendo necessário adaptar os códigos das classes de teste do projeto para funcionar corretamente:

package br.com.alura.forum;

import static org.junit.jupiter.api.Assertions.assertTrue;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit.jupiter.SpringExtension;

@ExtendWith(SpringExtension.class)
@SpringBootTest
public class ForumApplicationTests {

    @Test
    public void contextLoads() {
        assertTrue(true);
    }

}

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.junit.jupiter.SpringExtension;

import br.com.alura.forum.modelo.Curso;

@ExtendWith(SpringExtension.class)
@DataJpaTest
@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
@ActiveProfiles("test")
public class CursoRepositoryTest {

    @Autowired
    private CursoRepository repository;

    @Autowired
    private TestEntityManager em;

    @Test
    public void deveriaCarregarUmCursoAoBuscarPeloSeuNome() {
        String nomeCurso = "HTML 5";

        Curso html5 = new Curso();
        html5.setNome(nomeCurso);
        html5.setCategoria("Programacao");
        em.persist(html5);

        Curso curso = repository.findByNome(nomeCurso);
        assertNotNull(curso);
        assertEquals(nomeCurso, curso.getNome());
    }

    @Test
    public void naoDeveriaCarregarUmCursoCujoNomeNaoEstejaCadastrado() {
        String nomeCurso = "JPA";
        Curso curso = repository.findByNome(nomeCurso);
        assertNull(curso);
    }

}

import java.net.URI;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;

@ExtendWith(SpringExtension.class)
@SpringBootTest
@AutoConfigureMockMvc
@ActiveProfiles("test")
public class AutenticacaoControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @Test
    public void deveriaDevolver400CasoDadosDeAutenticacaoEstejamIncorretos() throws Exception {
        URI uri = new URI("/auth");
        String json = "{\"email\":\"invalido@email.com\",\"senha\":\"123456\"}";

        mockMvc
        .perform(MockMvcRequestBuilders
                .post(uri)
                .content(json)
                .contentType(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers
                .status()
                .is(400));
    }

}