<dependency> <groupId>org.jmock</groupId> <artifactId>jmock</artifactId> <version>2.8.3</version> <scope>test</scope> </dependency> public class MyTestClass { private Mockery context = new Mockery(); @Test public void testMyMethod() { final MyMockedObject mockedObject = context.mock(MyMockedObject.class); context.checking(new Expectations() {{ allowing(mockedObject).getValue(); will(returnValue(42)); }}); int result = myMethod(mockedObject); assertEquals(42, result); } }