Spring启动单元测试

Question

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = DemoApplication.class)
public class EmployeeRepositoryTest {

@Autowired
protected EmployeeRepository employeeRepository;


@Test
public void insertEmploee(){

    Employee employee = new Employee();

    employee.setEmpName("Azad");
    employee.setEmpDesignation("Engg");
    employee.setEmpSalary(12.5f);

    employeeRepository.save(employee);

}

java.lang.NoSuchMethodError: org.springframework.core.annotation.AnnotatedElementUtils.findMergedAnnotationAttributes(Ljava/lang/reflect/AnnotatedElement;Ljava/lang/String;ZZ)Lorg/springframework/core/annotation/AnnotationAttributes;

at org.springframework.test.util.MetaAnnotationUtils$AnnotationDescriptor.<init>(MetaAnnotationUtils.java:290)
at org.springframework.test.util.MetaAnnotationUtils$UntypedAnnotationDescriptor.<init>(MetaAnnotationUtils.java:365)
at org.springframework.test.util.MetaAnnotationUtils$UntypedAnnotationDescriptor.<init>(MetaAnnotationUtils.java:360)
at org.springframework.test.util.MetaAnnotationUtils.findAnnotationDescriptorForTypes(MetaAnnotationUtils.java:191)
at org.springframework.test.util.MetaAnnotationUtils.findAnnotationDescriptorForTypes(MetaAnnotationUtils.java:198)
at 

Answer 1

似乎您的问题已经解决了（混合Spring依赖版本），但让我扩展@g00glen00b关于如何编写单元测试的评论。

确保pom.xml中有以下依赖项：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>

正如注释中所指出的，@runwith(SpringJunit4ClassRunner.class)使单元测试启动整个应用程序，它更多地用于集成测试。

public class EmployeeRepositoryTest {

@InjectMocks
private EmployeeRepository employeeRepository;

@Mock
private Something something; // some class that is used inside EmployRepository (if any) and needs to be injected

@Before
public void setUp() {
    MockitoAnnotations.initMocks(this);
}

@Test
public void insertEmploee(){

    Employee employee = new Employee();

    employee.setEmpName("Azad");
    employee.setEmpDesignation("Engg");
    employee.setEmpSalary(12.5f);

    employeeRepository.save(employee);

    Mockito.verify(...); // verify what needs to be verified
    }
}