我试图为一个扩展了抽象类的类编写一个单元测试，但是测试仍然试图调用真正的抽象方法。有没有办法注入一个模拟的抽象类并验证是否调用了抽象方法？
测试

public class TestThisClassTest {
    @Tested
    TestThisClass testThisClass;
    @Injectable
    String names;
    @Injectable
    String username;
    @Injectable
    char[] password = {'t', 'e', 's', 't', 's'};;
    @Injectable
    String destinationName;
    @Injectable
    AbstractClass abstractClass; // Thought this would inject but it's not
    @Test(description = "Verify that sendMessageAbstractMethod is called")
    public void testSendMessage(@Mocked ObjectMessage message) throws Exception {
        testThisClass.sendMessage(message); // This is instantiating AbstractClass when it shouldn't be
        new Verifications(){{
            abstractClass.sendMessageAbstractMethod((Object) any);
            times = 1;
        }};
    }
}

testthisclass.class类

public class TestThisClass extends AbstractClass {
    public TestThisClass() {
        super();
    }
    @Inject
    public TestThisClass(String names, String username, char[] password, String destinationName) {
        super(names, username, password, destinationName);
    }
    public void sendMessage(Object message) throws Exception {  // Trying to test this method
        sendMessageAbstractMethod(message);  // This is "doing stuff." Need it verify this is called and move on
    }
}

抽象类

public abstract class AbstractClass {
    public AbstractClass(String names, String username, char[] password, String destinationName) {
        this.names = names;
        this.username = username;
        this.password = password;
        this.destinationName = destinationName;
    }
    protected void sendMessageAbstractMethod(Object message) throws Exception {
        //do stuff
    }
}