CODEWITHSUNDEEP
javamockitosuperclass
Kihira
Kihira

Reputation: 158

How to inject mock into @Autowired field in an abstract parent class with Mockito

I'm writing a Unit test for a class that has an abstract superclass, and one of the functions in the ChildClass is calling a method on an object form the BaseClass.

ChildClass looks something like this.

public class ChildClass extends ParentClass {
    public void functionA(){
        objectFromParentClass.functionB();
    }
}

The parent class

public abstract class ParentClass {
    @Autowired
    protected typeFromParentClass objectFromParentClass;

    public void someFunction() {}
}

Since a parent class is abstract @InjectMocks and ReflectionTestUtils() doesn't work. Is there any way to inject a mocked objectFromParentClass into the ParentClass with Mockito?

Edit: Neither the Child nor the Parent class was written by me, i'm just testing it.

Upvotes: 6

Views: 2826

Answers (2)

Jonathan S. Fisher
Jonathan S. Fisher

Reputation: 8817

https://github.com/exabrial/mockito-object-injection

Here's a Junit5 extension we wrote to solve this exact problem. Essentially it takes a map of objects and injects them into the fields of the class under test. Perfect for where InjectMocks falls short!

Upvotes: 0

Kihira
Kihira

Reputation: 158

ReflectionTestUtils.setField() does work in this case

Upvotes: 7

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