在Spring Boot项目中,我们可以使用JUnit和Mockito等工具进行单元测试。以下是一个简单的示例,展示了如何使用Zookeeper和Spring Boot进行单元测试:
pom.xml
文件中添加以下依赖:<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.7.0</version>
</dependency>
@Configuration
public class ZookeeperConfig {
@Bean
public CuratorFramework curatorFramework() {
CuratorFramework client = CuratorFrameworkFactory.builder()
.connect("localhost:2181", new ExponentialBackoffRetry(1000, 3))
.build();
client.start();
return client;
}
}
@Service
public class ZookeeperService {
@Autowired
private CuratorFramework curatorFramework;
public String createNode(String path) throws Exception {
return curatorFramework.create().creatingParentsIfNeeded().forPath(path);
}
public boolean isNodeExists(String path) throws Exception {
return curatorFramework.checkExists().forPath(path) != null;
}
}
@RunWith(SpringRunner.class)
public class ZookeeperServiceTest {
@Autowired
private ZookeeperService zookeeperService;
@MockBean
private CuratorFramework curatorFramework;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
@Test
public void testCreateNode() throws Exception {
String path = "/testNode";
zookeeperService.createNode(path);
Mockito.verify(curatorFramework, Mockito.times(1)).create().creatingParentsIfNeeded().forPath(path);
}
@Test
public void testIsNodeExists() throws Exception {
String path = "/testNode";
Mockito.when(curatorFramework.checkExists().forPath(path)).thenReturn(new Stat());
boolean result = zookeeperService.isNodeExists(path);
assertTrue(result);
Mockito.verify(curatorFramework, Mockito.times(1)).checkExists().forPath(path);
}
}
在这个示例中,我们使用了@RunWith(SpringRunner.class)
来启用Spring Boot的测试支持,@MockBean
来创建一个Zookeeper的模拟对象,@Before
注解来初始化Mockito注解。在测试方法中,我们使用Mockito.verify()
来验证Zookeeper服务类中的方法是否被正确调用。