Android Testing Bootcamp #3 Hands-On

Android Testing Bootcamp #3 Hands-On 資料

Transcript

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20. public class CalculatorTest {
 private Calculator calculator;
 
 @Before
 public void setUp() {
 calculator = new Calculator();
 }
 
 @After
 public void tearDown() {
 
 }
 
 @Test
 public void ଍͠ࢉ͕ਖ਼͘͠ग़དྷΔ() throws Exception {
 double expected = calculator.add(1.0, 2.0);
 assertTrue(expected == 3.0);
 }
 }
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24. Assert.assertThat(1 + 1, Matchers.is(2));
 assertThat("MIKE", is(not("STEVE")));
 assertThat(1000L, is(instanceOf(Integer.class)));
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31. public class RandomIntGenerator {
 private final Random random = new Random();
 
 public int generate() {
 return random.nextInt(Integer.MAX_VALUE);
 }
 }
32. public class RandomIntGeneratorTest {
 private RandomIntGenerator randomIntGenerator;
 
 @Before
 public void setUp() {
 randomIntGenerator = new RandomIntGenerator();
 }
 
 @After
 public void tearDown() {
 
 }
 
 @Test
 public void generateͷ݁Ռ() {
 int expected = randomIntGenerator.generate();
 assertThat(expected, is(1)); // ͜Μͳ͜ͱ͸Ͱ͖ͳ͍ʂʂ
 }
 }
33. ࢖͍ํ RandomIntGenerator randomIntGenerator = Mockito.mock(RandomIntGenerator.class);
 Mockito.when(randomIntGenerator.generate()).thenReturn(123);
34. w ଞʹ΋!.PDLΞϊςʔγϣϯΛ࢖͏΍Γํ͕͋Δ
35. 
 @Mock
 RandomIntGenerator randomIntGeneratorWithAnnotation;
 
 @Before
 public void setUp() {
 MockitoAnnotations.initMocks(this);
 Mockito.when(randomIntGeneratorWithAnnotation.generate()).thenReturn(456);
 }
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39. Mockito.verify(mockStrings, Mockito.times(1)).add("FOO");
 Mockito.verify(mockStrings, Mockito.atLeast(1)).add("BAR");
 Mockito.verify(mockStrings).add("BAZ");
 Mockito.verify(mockStrings, Mockito.never()).add("I AM NOT CALLED");
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43. List<String> realList = new ArrayList<>();
 List<String> spyList = spy(realList);
 doReturn(38).when(spyList).size();
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45. public class StringCollector {
 private List<String> strings = new ArrayList<>();
 
 public void add(@NonNull String string) {
 strings.add(string);
 }
 
 public int size() {
 return strings.size();
 }
 }
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47. public class StringCollector {
 private List<String> strings = new ArrayList<>();
 
 public void add(@NonNull String string) {
 strings.add(string);
 }
 
 public int size() {
 return strings.size();
 }
 
 @VisibleForTesting
 void setStrings(List<String> strings) {
 this.strings = strings;
 }
 }
48. !*OKFDU.PDLT @Mock
 List<String> mockStringsForInject;
 
 @InjectMocks
 StringCollector stringCollectorForInject;
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59. @Module
 public class ApplicationModule {
 @Singleton
 @Provides
 public MessageHelper provideMessageHelper(Context context) {
 return MessageHelper.getInstance(context);
 }
 
 }
60. @Singleton
 @Component(modules = ApplicationModule.class)
 public interface ApplicationComponent {
 ActivityComponent activityComponent(ActivityModule module);
 }
61. public ApplicationComponent getComponent() {
 return applicationComponent;
 }
 
 @Override
 public void onCreate() {
 super.onCreate();
 
 applicationComponent = DaggerApplicationComponent.builder()
 .applicationModule(new ApplicationModule(this))
 .build(); }
62. public class BaseActivity extends AppCompatActivity {
 private ActivityComponent activityComponent;
 
 /**
 * {@link android.app.Activity}ͷґଘੑάϥϑΛฦ͢
 *
 * @return
 */
 protected ActivityComponent getComponent() {
 if (activityComponent == null) {
 MyApplication myApplication = (MyApplication) getApplication();
 activityComponent = myApplication.getComponent().activityComponent(new ActivityModule(this));
 }
 return activityComponent;
 }
 }
63. public class ChatActivity extends BaseActivity {
 
 @Inject
 MessageHelper messageHelper; // ҎԼུ }
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