junits failing with easymock

Question

I am using EasyMock to write unit tests for my blackjack game. But I get java.lang.IllegalArgumentException: Cannot subclass final class class com.blackjack.game.cards.Card error.

Although, I feel I am doing it the right way. Here is my testclass :

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.easymock.EasyMock;
import org.easymock.EasyMockRunner;
import org.easymock.EasyMockSupport;

@RunWith(EasyMockRunner.class)
public class handTest extends EasyMockSupport{
    private Hand hand;
    private Card seven, nine, ten, jack, ace;

    @Before
    public void setUp() throws Exception
    {
        seven = EasyMock.createNiceMock(Card.class);
        EasyMock.expect(seven.getValue()).andStubReturn(7);
        EasyMock.expect(seven.toString()).andStubReturn("seven value: 7");

    }

    @Test
    public void testTotalHandValueByAddingNumbers() {
        replayAll();
        hand.addCard(seven);

        assertEquals(27, hand.getTotal());


    }
}

I would be glad, if somebody could help me run this. It's been a while since I have written unit tests.

Edit: I have both of Objenesis and cglib in my classpath.

Thanks

score 0 · Answer 1 · answered Sep 30 '18 at 17:18

0

Are you sure you have the other libraries required for class mocking?

cglib (2.2) and Objenesis (1.2) must be in the classpath to perform class mocking

answered Sep 30 '18 at 17:18

Little Yusuf

76
14

1

Yes. I am using both of those in my classpath. – AYa Sep 30 '18 at 17:20

score 0 · Answer 2 · answered Oct 07 '18 at 06:09

In all probability your class com.blackjack.game.cards.Card is final class

and createNiceMock or in that sense EasyMock cannot be used to mock the final classes.

You will need to use Powermock for this case, have a look at this resource for more inputs https://dzone.com/articles/mock-final-class#mock-final-class

Hope this helps!

Good luck!

junits failing with easymock

2 Answers2