We have used Redis Caching in a project.And we have implemented Mockito and we are mocking repository layer but redisTemplate is being used to get the data from cache at service layer and we are trying to mock RedisTemplate but unable to do so
@MockBeanprivate RedisTemplate<Object, Object> redisTemplate; @Test public void testGetProductHappyPath() { log.info(ApplicationConstantsTest.METHOD_ENTER_LABEL); when(redisTemplate.keys(ArgumentMatchers.any())).thenReturn(null); final RequestBuilder requestBuilder = MockMvcRequestBuilders.get(ApplicationConstantsTest.PRODUCT_WALLET_OF_PRODUCT, Integer.MAX_VALUE) .accept(MediaType.APPLICATION_JSON); try { mockMvc.perform(requestBuilder).andExpect(status().isOk()); log.info(ApplicationConstantsTest.METHOD_EXIT_LABEL); } catch (final Exception e) { log.error(ApplicationConstantsTest.METHOD_EXCEPTION_LABEL, e); } }But we are getting this:
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.redis.core.RedisKeyValueAdapter]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: ConnectionFactory must not be null!at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:217)at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:117)at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:309)... 65 common frames omittedCaused by: java.lang.IllegalArgumentException: ConnectionFactory must not be null!at org.springframework.util.Assert.notNull(Assert.java:201)at org.springframework.data.redis.listener.RedisMessageListenerContainer.setConnectionFactory(RedisMessageListenerContainer.java:311)at org.springframework.data.redis.core.RedisKeyValueAdapter.initMessageListenerContainer(RedisKeyValueAdapter.java:712)at org.springframework.data.redis.core.RedisKeyValueAdapter.(RedisKeyValueAdapter.java:196)at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:64)at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:204)