Junit5 Test not able to inject dependency but running application normally can inject it

Currently, I am working in a project where I created @Entity Class , @Repository for storing some information. I created a service just like other existing ones and then tried that @Service annotated class to be injected at Controller annotated with @RestController. It works perfectly and was able to run the application normally without issues i.e no injection issues.

Now when I am trying to run the tests of my existing project, it fails as my service was unable to be injected into the controller class. Getting this error :

No qualifying bean of type 'com.example.service.exampleService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}  

Now I tired field and constructor injection, getting same issue every time, but I am following same patterns previously used by the project. I am quite sure the autowiring and other stuffs are properly done else the endpoints I created would not have worked.

My question is why this can happen ? i.e it works when running as spring boot application but not in test context. I tried to follow other posts but I cant follow them as most were fore Junit4

Currently I am using Junit5.

Here is how my test classes looks like

import org.junit.jupiter.api.Test;  import org.junit.jupiter.api.extension.ExtendWith;  import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;  import org.springframework.boot.test.mock.mockito.MockBean;  import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;      @WebMvcTest  @AutoConfigureMockMvc(addFilters = false)  @ExtendWith(MockitoExtension.class)  public class sampleTest{     @Test      public void sampletesting() throws Exception{        ...      }  }  

Here are my dependencies I am using and the Spring boot version :

    plugins {          id 'org.springframework.boot' version '2.3.0.RELEASE'          id 'io.spring.dependency-management' version '1.0.9.RELEASE'          id 'java'          id 'jacoco'      }   testImplementation('org.springframework.boot:spring-boot-starter-test') {          exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'      }      testImplementation('org.mockito:mockito-core:3.5.13')      testImplementation('org.mockito:mockito-inline:3.5.13')      testImplementation('org.mockito:mockito-junit-jupiter:3.5.13')  

I am using Java 11

https://stackoverflow.com/questions/66963187/junit5-test-not-able-to-inject-dependency-but-running-application-normally-can-i April 06, 2021 at 01:34PM