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How to use MockSelfPrivateFieldServiceClass class of samples.privatefield package

Best Powermock code snippet using samples.privatefield.MockSelfPrivateFieldServiceClass

Source:MockSelfPrivateFieldServiceClassTest.java

...19import org.junit.runner.RunWith;20import org.powermock.core.classloader.annotations.PrepareForTest;21import org.powermock.modules.junit4.PowerMockRunner;22import samples.Service;23import samples.privatefield.MockSelfPrivateFieldServiceClass;24/**25 * A test class that demonstrate how to test classes that uses a private field26 * for a service and has no corresponding setter and at the same time mocking a27 * method of the actual test class. This is approach is common in DI frameworks28 * like Guice and Wicket IoC.29 *30 * @author Johan Haleby31 */32@RunWith(PowerMockRunner.class)33@PrepareForTest(MockSelfPrivateFieldServiceClass.class)34public class MockSelfPrivateFieldServiceClassTest {35    @Test36    public void testGetCompositeMessage() throws Exception {37        MockSelfPrivateFieldServiceClass tested = createPartialMock(MockSelfPrivateFieldServiceClass.class, "getOwnMessage");38        Service serviceMock = createMock(Service.class);39        setInternalState(tested, "service", serviceMock, MockSelfPrivateFieldServiceClass.class);40        final String expected = "Hello world";41        expectPrivate(tested, "getOwnMessage").andReturn("Hello");42        expect(serviceMock.getServiceMessage()).andReturn(" world");43        replay(serviceMock);44        replay(tested);45        final String actual = tested.getCompositeMessage();46        verify(serviceMock);47        verify(tested);48        Assert.assertEquals(expected, actual);49    }50}...

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