CODEWITHSUNDEEP
javaspringunit-testing
The_learning_guy
The_learning_guy

Reputation: 51

Injecting Autowired Variable

I have the following service class :


    @Component
    public class ABC {


      @Autowired private SomeClass assumeRoles; 

      @Override
      public @NotNull Optional<Something> translate(int id) {
             // Some Code
             SomeClass result = assumeRoles.getRole(id);

      }
   }

Now I want to write Junit for my class, I don't want Role.getRole(id) to be get called, instead of that I want to mock this function call, with some dummy value.

So can I do that?

I have my Junit class as

    @RunWith(MockitoJUnitRunner.class)
    public class ABCTest {

      @InjectMocks
      private ABC test = new ABC();

      @Mock
      private SomeClass assumeRoles;


      @Test
      public void testTranslate() {

        ABC result =  test.translate(id);    
      }

    }

Upvotes: 1

Views: 87

Answers (2)

Max Peng
Max Peng

Reputation: 3197

BTW, field injection is not recommended by the spring team explained at here: https://blog.marcnuri.com/field-injection-is-not-recommended/

So, you'd better mark the field final if required: private final SomeClass assumeRoles;, then provide a constructor like this:

public ABC(SomeClass assumeRoles) {
  this.assumeRoles = assumeRoles;
}

In this way, it would be easier to pass the dummy SomeClass to the constructor to get an instance of ABC.

Upvotes: 0

Smile
Smile

Reputation: 4088

You have already marked SomeClass assumeRoles as @Mock, you can mock the Role.getRole(id); statement as follows.

Mockito.when(assumeRoles.getRole(Mockito.any(id))).thenReturn(someResult);

I have answered the question after making some assumptions, I suggest you to improve the code snippet you have provided with correct variable and class names.

Upvotes: 1

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