Spring Boot: load all beans implementing an interface in test?

Question

I have some interface Filter and some implementations of this interface.

In @Test , I'd like to load all beans implementing Filter .

Currently, I have to declare them explicitly. For example:

@ContextConfiguration(classes = {FilterA.class, FilterB.class})

The problem: Introducing another Filter would require adding it for each test class that uses the filters .

Is there a better way?

Answer 1

Add a TestConfiguration and declare all the beans implementing the interface in the configuration. Then add an @Import(TestConfiguration.class) in your tests.

That way if there is an extra implementation you only add it in the TestConfiguration .

Only thing you need to take care of is adding the appropriate implementation of the interface with use of the @Qualifier annotation.