Java 如何使用Mockito模拟spring应用程序上下文创建的对象以实现单元测试覆盖率?
应用场景: TaskScheduler按常规的cron间隔触发。每个调度程序作业将创建多个可运行线程。每个线程都将执行ETL过程Java 如何使用Mockito模拟spring应用程序上下文创建的对象以实现单元测试覆盖率?,java,spring,unit-testing,mockito,applicationcontext,Java,Spring,Unit Testing,Mockito,Applicationcontext,应用场景: TaskScheduler按常规的cron间隔触发。每个调度程序作业将创建多个可运行线程。每个线程都将执行ETL过程 public class LoadTask { private static final AuditLogService AUDIT_LOG_SERVICE = ApplicationContextUtils.getApplicationContext().getBean("auditLogService", AuditLogS
public class LoadTask {
private static final AuditLogService AUDIT_LOG_SERVICE =
ApplicationContextUtils.getApplicationContext().getBean("auditLogService", AuditLogService.class);
public void perform(ETLDetailsDTO etlDetailsDTO) {
// Business logic
AUDIT_LOG_SERVICE.save(AuditLogBuilder.buildSuccessAuditLog())
}
}
AuditLogService是一个带有服务注释的spring托管bean
@Component
public class ApplicationContextUtils implements ApplicationContextAware {
@Getter
private static ApplicationContext applicationContext;
@Override
public void setApplicationContext(ApplicationContext appContext) {
applicationContext = appContext;
}
}
LoadTask不是由spring管理的组件,因此我在ApplicationContextUtils的帮助下获得AuditLogService的bean。应用程序运行良好。在编写LoadTask的单元测试用例时,引发空指针异常
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
public class LoadTaskTest {
@InjectMocks
private LoadTask loadTask;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
@Test
public void testPerform() {
Mockito.when(ApplicationContextUtils.getApplicationContext().getBean("auditLogService", AuditLogService.class)).thenReturn(new AuditLogService());
loadTask.perform(MockObjectHelper.getETLDetailsDTO());
}
}
我无法设置AUDIT_LOG_服务的模拟对象并成功运行测试用例。如何模拟或监视应用程序上下文,以便LoadTask不会引发任何错误
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
public class LoadTaskTest {
@InjectMocks
private LoadTask loadTask;
@Mock
private ApplicationContext applicationContext;
@Mock
private AuditLogService auditLogService;
@BeforeEach
public void setUp() {
MockitoAnnotations.openMocks(this);
new ApplicationContextUtils().setApplicationContext(applicationContext);
}
@Test
public void testPerform() {
Mockito.when(applicationContext.getBean("auditLogService", AuditLogService.class)).thenReturn(auditLogService);
loadTask.perform(MockObjectHelper.getETLDetailsDTO());
}
}
添加mockito内联依赖项
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-inline</artifactId>
<version>3.10.0</version>
<scope>test</scope>
</dependency>
org.mockito
莫基托内联
3.10.0
测试