使用Mockito或JMock进行单元测试

public class BImpl extends AImpl
{
    public BImpl(final C c) 
    {
        super(c);
    }

    public String getInfo()
    {
       final String info = getInformation();
       // Do all my logic here
       return info;
    }
}

public abstract class AImpl
{
    public String getInformation()
    {
    // some logic...returns String.
    }
}

final AImpl aImpl = mock(AImpl.class);
when(aImpl.getInformation()).thenReturn(\"ABC\");

final BImpl bImpl = new BImpl (C);
bImpl.getInfo();