Integrates jMock with JUnit 4.

To write a mock object test in JUnit 4, declare a field of type Mockery that holds a JUnit4Mockery and annotate your test class with `@RunWith(JMock.class)`, as shown below. The Mockery will be verified after the test has run and before the fixture is torn down.

    import org.jmock.Expectations;
    import org.jmock.Mockery;
    import org.jmock.integration.junit4.JMock;
    import org.jmock.integration.junit4.JUnit4Mockery;
    import org.junit.Test;
    import org.junit.runner.RunWith;

    ...

    @RunWith(JMock.class)
    public class ExampleJUnit4MockObjectTest {
    	Mockery context = new JUnit4Mockery();

    	...

    	@Test public void
    	dispatchesEventToSessionsOtherThanThenSender() {
    		...

    		context.checking(new Expectations() {{
    			...
    		}});

    		...
    	}
    }

Alternatively, from JUnit 4.7, you can use `JMockContext` which implements a JUnit `Rule` to manage expectations and allowances, and to assert the expectations after each test has run.

    public class ATestWithSatisfiedExpectations {
      \@Rule public final JMockContext context = new JMockContext();
      private final Runnable runnable = context.mock(Runnable.class);

      \@Test
      public void doesSatisfyExpectations() {
        context.checking(new Expectations() {{
          oneOf (runnable).run();
        }});

        runnable.run();
      }
    }