jmock測試的準備工作

          private Mockery context = new JUnit4Mockery() {
                  {
                      setImposteriser(ClassImposteriser.INSTANCE);
                  }
              };

          注意這里的setImposteriser(ClassImposteriser.INSTANCE);
          因為默認的JUnit4Mockery的Imposteriser是JavaReflectionImposteriser,他是針對接口進行mock的,如果要針對class進行mock,必須setImposteriser(ClassImposteriser.INSTANCE);
          這樣之后context便可以對class進行mock了


          官方的文檔:

          Mocking Classes with jMock and the ClassImposteriser

          Because it uses Java's standard reflection capability, the default configuration of the jMock framework can only mock interfaces, not classes. (Actually, we consider that to be a good thing because it encourages the design to focus on communication between objects rather than static classification or data storage). However, the ClassImposteriser extension class uses the CGLIB 2.11 and Objenesis2 libraries to create mock objects of classes as well as interfaces. This is useful when working with legacy code to tease apart dependencies between tightly coupled classes.

          To use the ClassImposteriser:

          1. Add jmock-legacy-2.1.0-RCn.jar, cglib-nodep-2.1_3.jar and objenesis-1.0.jar to your CLASSPATH.
          2. Plug the ClassImposteriser into the Mockery of your test class:

            Raw

            import org.jmock.Mockery;
            import org.jmock.Expectations;
            import org.jmock.lib.legacy.ClassImposteriser;

            public class ConcreteClassTest extends TestCase {
            private Mockery context = new Mockery() {{
            setImposteriser(ClassImposteriser.INSTANCE);
            }};

            ...
            }

            JUnit 3

            import org.jmock.Expectations;
            import org.jmock.integration.junit3.MockObjectTestCase;
            import org.jmock.lib.legacy.ClassImposteriser;

            public class ConcreteClassTest extends MockObjectTestCase {
            {
            setImposteriser(ClassImposteriser.INSTANCE);
            }

            ...
            }

            JUnit 4

            import org.jmock.Mockery;
            import org.jmock.Expectations;
            import org.jmock.integration.junit4.JUnit4Mockery;
            import org.jmock.lib.legacy.ClassImposteriser;

            @RunWith(JMock.class)
            public class ConcreteClassTest {
            private Mockery context = new JUnit4Mockery() {{
            setImposteriser(ClassImposteriser.INSTANCE);
            }};

            ...
            }
          3. Your tests can now create mocks of abstract or even concrete classes:
            Graphics g = context.mock(java.awt.Graphics.class);

          posted on 2007-12-05 10:54 劉錚 閱讀(908) 評論(0)  編輯  收藏 所屬分類: Jmock

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