MyTest.java

import org.junit.Test;

import static com.googlecode.catchexception.CatchException.caughtException;
import static com.googlecode.catchexception.apis.CatchExceptionAssertJ.then;
import static com.googlecode.catchexception.apis.CatchExceptionAssertJ.when;
import static org.mockito.BDDMockito.given;

public class SomeServiceTest {

    private SomeService myMock;

    @Test
    public void testDoThat() {

        given(myMock.doSomething()).willThrow(new MyException());

        when(myMock).doSomething();

        then(caughtException()).isInstanceOf(MyException.class);

    }

}