Spring Boot 2-使用Mockito为不带参数的方法测试@cacheable不起作用
我有一个使用Spring Boot 2的应用程序。我想测试一个带有@cacheable(Spring Cache)的方法。我举了一个简单的例子来说明我的想法:
@Service
public class KeyService {
@Cacheable("keyCache")
public String getKey() {
return "fakeKey";
}
}
和测试类:
@RunWith(SpringRunner.class)
@SpringBootTest
public class KeyServiceTest {
@Autowired
private KeyService keyService;
@Test
public void shouldReturnTheSameKey() {
Mockito.when(keyService.getKey()).thenReturn("key1", "key2");
String firstCall = keyService.getKey();
assertEquals("key1", firstCall);
String secondCall = keyService.getKey();
assertEquals("key1", secondCall);
}
@EnableCaching
@Configuration
static class KeyServiceConfig {
@Bean
KeyService keyService() {
return Mockito.mock(KeyService.class);
}
@Bean
CacheManager cacheManager() {
return new ConcurrentMapCacheManager("keyCache");
}
}
}
上面的示例不起作用。但是,如果我更改getKey()
方法以接收参数:
@Service
public class KeyService {
@Cacheable("keyCache")
public String getKey(String param) {
return "fakeKey";
}
}
并重构测试以适应该更改,测试即可成功运行:
@RunWith(SpringRunner.class)
@SpringBootTest
public class KeyServiceTest {
@Autowired
private KeyService keyService;
@Test
public void shouldReturnTheSameKey() {
Mockito.when(keyService.getKey(Mockito.anyString())).thenReturn("key1", "key2");
String firstCall = keyService.getKey("xyz");
assertEquals("key1", firstCall);
String secondCall = keyService.getKey("xyz");
assertEquals("key1", secondCall);
}
@EnableCaching
@Configuration
static class KeyServiceConfig { //The same code as shown above }
}
你们对这个问题有什么想法吗?
解决方案
使用方法参数作为键执行缓存查找。这意味着您需要没有参数的方法的密钥。尝试此@Cacheable(value = "keyCache", key = "#root.methodName")
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