import org.junit.Test; import org.jmock.Expectations; import org.jmock.Mockery; public class ExampleUnitTest { private Mockery mockery = new Mockery(); @Test public void testExampleMethod() { mockery.checking(new Expectations() {{ oneOf(mockDependency).doSomething("param"); will(returnValue("result")); }}); String result = example.exampleMethod("param"); assertEquals("result", result); } }