今天进行单元测试代码的编写
ExampleUnitTest.java
import org.junit.Test; import static org.junit.Assert.*; public class ExampleUnitTest { @Test public void addition_isCorrect() throws Exception { assertEquals(4, 2 + 2); } }
SoundViewModelTest.java
import org.junit.Before; import org.junit.Test; import static org.hamcrest.core.Is.is; import static org.junit.Assert.*; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.verify; public class SoundViewModelTest { private BeatBox mBeatBox; private Sound mSound; private SoundViewModel mSubject; @Before public void setUp() throws Exception { mBeatBox = mock(BeatBox.class); mSound = new Sound("assetPath"); mSubject = new SoundViewModel(mBeatBox); mSubject.setSound(mSound); } @Test public void exposesSoundNameAsTitle() { assertThat(mSubject.getTitle(), is(mSound.getName())); } @Test public void callsBeatBoxPlayOnButtonClicked() { mSubject.onButtonClicked(); verify(mBeatBox).play(mSound); } }