I am facing a issue in mock redis template. Can any one help me to write unit test for below class.
@Repository
public class CasheRepo {
@Autowired
private RedisTemplate<String, Object> template;
public Object getObject(final String key) {
return template.opsForValue().get(key);
}
}
And below is unit test class. But it is not working. It shows null point exceptions
@RunWith(MockitoJUnitRunner.class)
public class CashRepoTest {
@InjectMocks
private CasheRepo casheRepo = new CasheRepo();
private @Mock RedisConnection redisConnectionMock;
private @Mock RedisConnectionFactory redisConnectionFactoryMock;
private RedisTemplate redisTemplate;
@Before
public void setUp() { Mockito.when(redisConnectionFactoryMock.getConnection()).thenReturn(redisConnectionMock);
redisTemplate = new RedisTemplate();
redisTemplate.setConnectionFactory(redisConnectionFactoryMock);
redisTemplate.afterPropertiesSet();
}
@Test
public void getObjectTest() {
Mockito.doNothing().when(redisTemplate).opsForValue().set("spring", "data");
redisTemplate.afterPropertiesSet();
System.out.println(redisTemplate.opsForValue().get("spring"));
}
}
you can mock redisTemplate like this:
@Mock
RedisTemplate<String, String> redisTemplate;
@Mock
private ValueOperations valueOperations;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
Mockito.when(redisTemplate.opsForValue()).thenReturn(valueOperations);
Mockito.doNothing().when(valueOperations).set(anyString(), anyString());
}
You are creating redisTemplate via constructor, and it was not got by DI. Try to use @Spy annotation:
@Spy
private RedisTemplate redisTemplate = new RedisTemplate();
It will allow DI to inject your instance of RedisTemplate.
For those who want to do the same with HashOperations get() and put()
@Mock
RedisTemplate<String, String> redisTemplate;
@Mock
private HashOperations hashOperations;
@Test
void getFromCache() {
Mockito.when(redisTemplate.opsForHash()).thenReturn(hashOperations);
when(hashOperations.get("test-key", "test-hash-key")).thenReturn("value123");
RedisCacheServiceImpl cacheService = new RedisCacheServiceImpl(redisTemplate);
assertEquals("value123", cacheService.getFromCache("test-key", "test-hash-key"));
}
Hope it helps you ;)