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Тестирование на Android с Dagger 2

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Kirill Rozov
Kirill Rozov

This document discusses different types of testing for Android applications using Dagger 2, including unit tests, Android component tests, and instrumentation tests. It provides examples of setting up tests with Mockito and Robolectric. Product flavors are used to create a mock implementation for network calls. Instrumentation tests are configured using Espresso to test activities and verify intents. Dependencies, test setup, and common issues like test synchronization are also covered.

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Тестирование с Dagger 2 на Android
Виды тестирования • Простые Unit тесты • Тестирование Android компонентов • Instrumentation тесты
public final class SourcesContract {
 
 public interface Presenter extends MVPPresenter<SourcesView> {
 
 void openArticles(final @NonNull NewsSourceDto source);
 }
 
 public interface Starter {
 
 void openArticles(final @NonNull NewsSourceDto source);
 }
 
 public interface SourcesView extends MVPView {
 
 void setSources(@NonNull List<NewsSourceDto> sources);
 
 void setProgressVisible(boolean visible);
 
 void showError(@NonNull String errorMessage);
 }
 }
final class SourcesPresenter extends BasePresenter<SourcesContract.View>
 implements SourcesContract.Presenter {
 
 @Inject
 SourcesPresenter(@NonNull Lazy<SourcesContract.Starter> starter,
 @NonNull NewsSourcesDataSource dataSource,
 @NonNull @Named(RxModule.COMPUTATION) Scheduler computationScheduler,
 @NonNull @Named(RxModule.MAIN) Scheduler observerScheduler) { …
 } }
public final class NewsSourcesDataSource {
 
 @Inject
 public NewsSourcesDataSource(@NonNull NewsSourcesRestService service, @NonNull @Named(RxModule.NETWORK) Scheduler networkScheduler) { … } … }
public final class NewsSourcesDataSource {
 
 @Inject
 public NewsSourcesDataSource(@NonNull NewsSourcesRestService service, @NonNull @Named(RxModule.NETWORK) Scheduler networkScheduler) { … } … } public interface NewsSourcesRestService {
 
 @NonNull
 @GET("sources")
 Single<NewsSourcesResponseDto> sources();
 }
Unit Тесты
Что используется
Зависимости testCompile 'org.mockito:mockito-core:2.8.9'
 testCompile 'junit:junit:4.12'
@RunWith(MockitoJUnitRunner.class)
 public class SourcesPresenterTest {
 
 @Mock SourcesContract.Starter mMockStarter;
 
 @Mock SourcesContract.View mMockView;
 
 @Mock NewsSourcesRestService mMockRestService;
 
 private SourcesPresenter mSourcesPresenter;
 
 @Before
 public void init() {
 Scheduler testScheduler = …;
 
 Lazy<SourcesContract.Starter> starter = () -> mMockStarter;
 NewsSourcesDataSource dataSource =
 new NewsSourcesDataSource(mMockRestService, testScheduler); 
 mSourcesPresenter = new SourcesPresenter(
 starter, dataSource, testScheduler, testScheduler);
 }
 }
@Test
 public void test() { doAnswer(invocation -> Single.just(newNewsSourceDataResponse()))
 .when(mMockRestService) .sources(); 
 mSourcesPresenter.attachView(mMockView);
 
 verify(mMockView, times(1)).setProgressVisible(true);
 verify(mMockRestService, times(1)).sources();
 
 verify(mMockView, times(1)).setSources(any());
 verify(mMockView, times(1)).setProgressVisible(false);
 
 mSourcesPresenter.onDetachView();
 mSourcesPresenter.onDestroyView();
 }
Тестирование компонентов Android SDK
Что используется
Зависимости testCompile “org.mockito:mockito-core:2.8.9“
 testCompile 'junit:junit:4.12'
 testCompile "org.robolectric:robolectric:3.3.2"
@RunWith(RobolectricTestRunner.class)
 @Config(sdk = Build.VERSION_CODES.LOLLIPOP, constants = BuildConfig.class)
 public class SourcesActivityTest {
 
 private SourcesActivity mSourcesActivity;
 
 @Before
 public void setup() { mSourcesActivity = Robolectric.setupActivity(SourcesActivity.class); }
 
 @Test
 public void test() throws Exception {
 final View progressView = mSourcesActivity.findViewById(R.id.progress);
 assertThat(progressView.getVisibility(), equalTo(View.GONE));
 
 final RecyclerView sourcesView = (RecyclerView) mSourcesActivity.findViewById(R.id.list);
 assertThat(sourcesView.getVisibility(), equalTo(View.VISIBLE));
 
 final SourceAdapter adapter = (SourceAdapter) sourcesView.getAdapter();
 assertThat(adapter, notNullValue());
 assertThat(adapter.getItemCount(), equalTo(1));
 final NewsSourceDto source = adapter.getItem(0);
 assertThat(source, equalTo(newNewsSourceDataResponse().getSources().get(0)));
 
 final View sourceView = sourcesView.getChildAt(0);
 final TextView sourceNameView = (TextView) sourceView.findViewById(R.id.name);
 assertThat(sourceNameView.getText(), equalTo(source.getName()));
 assertThat(sourceNameView.getVisibility(), equalTo(View.VISIBLE));
 }
 }
Проблемы 1.Необходимо сделать тесты синхронными 2.Необходимо заменить получение данных с сервера на стабовые
Product Flavors android {
 
 flavorDimensions ‘mode' 
 productFlavors {
 common {
 dimension = 'mode'
 }
 
 mock {
 dimension = 'mode'
 }
 }
 }
Зависимости mockCompile “org.mockito:mockito-core:2.8.9“ 
 testCompile 'junit:junit:4.12'
 testCompile "org.robolectric:robolectric:3.3.2"
android {
 
 flavorDimensions ‘mode'
 productFlavors {
 common { dimension = 'mode'}
 mock { dimension = 'mode'}
 }
 
 variantFilter { variant ->
 if (variant.buildType.name != 'debug') {
 def names = variant.flavors*.name
 if (names.contains('mock')) {
 setIgnore(true)
 }
 }
 }
 } Product Flavors
app/src/main/java/com/kirich1409/news/dagger/RxModule.java
app/src/common/java/com/kirich1409/news/dagger/RxModule.java app/src/mock/java/com/kirich1409/news/dagger/RxModule.java
Mock RxModule @Module
 public abstract class RxModule {
 
 public static final String NETWORK = “network”, MAIN = “main”, COMPUTATION = “computation"; 
 @Provides @Named(COMPUTATION)
 public static Scheduler provideComputationScheduler() {
 return Schedulers.computation();
 }
 
 @Provides @Named(NETWORK)
 public static Scheduler provideNetworkScheduler() {
 return Schedulers.computation();
 }
 
 @Provides @Named(MAIN)
 public static Scheduler provideMainScheduler() {
 return AndroidSchedulers.mainThread();
 }
 }
Mock NewsApiModule @Module(includes = NewsNetworkModule.class)
 public abstract class NewsApiModule {
 
 @Singleton @Provides
 static ArticlesRestService provideArticlesRestService() {
 ArticlesRestService mock = Mockito.mock(ArticlesRestService.class);
 ArticlesResponseDto responseDto = new ArticlesResponseDto(STATUS_ERROR, "", emptyList(), SORT_LATEST, 0, "");
 Mockito.when(mock.articles(anyString(), isNull())).thenReturn(Single.just(responseDto));
 return mock;
 }
 
 public static NewsSourcesResponseDto newNewsSourceDataResponse() {
 NewsSourceDto newsSourceDto = new NewsSourceDto(
 "sample_id","Sample news","Sample new for Unit test”, "http://www.sample.org/item.html");
 return new NewsSourcesResponseDto(STATUS_OK, singletonList(newsSourceDto), 0, "");
 }
 
 @Singleton @Provides
 static NewsSourcesRestService provideNewsSourcesRestService() {
 NewsSourcesRestService mock = Mockito.mock(NewsSourcesRestService.class);
 Mockito.when(mock.sources()).thenReturn(Single.just(newNewsSourceDataResponse()));
 return mock;
 }
 }
Instrumentation тесты
Что используется
Зависимости mockCompile “org.mockito:mockito-core:2.8.9“ androidTestCompile “org.mockito:mockito-android:2.8.9”
 androidTestCompile “cdz.ԻǾ.ܱǰ.ٱ.:-ǰ:2.2.2”
Настройка сборки android {
 
 defaultConfig { 
 testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
 
 }
 }
@RunWith(AndroidJUnit4.class) @LargeTest
 public class SourceActivityTest {
 
 @Rule
 public IntentsTestRule<SourcesActivity> mActivityRule = new IntentsTestRule<>(SourcesActivity.class);
 
 @Test
 public void test() throws Exception {
 onView(withId(R.id.list))
 .check(matches(childCount(1)))
 .check(matches(hasDescendant(withId(R.id.name))));
 
 NewsSourcesResponseDto responseDto = NewsApiModule.newNewsSourceDataResponse();
 onView(withId(R.id.name))
 .check(matches(withText(responseDto.getSources().get(0).getName())));
 
 onView(withId(R.id.list))
 .perform(actionOnItemAtPosition(0, click()));
 
 ComponentName articlesActivity =
 new ComponentName(mActivityRule.getActivity(), ArticlesActivity.class);
 intended(hasComponent(articlesActivity));
 }
 }
Espresso • Core • Contrib • Idling Resources • Intents • Web
Материалы • JUnit4 • Mockito • Basic Guide • Robolectric • Android:Getting Started with Testing • Android Testing Support Library • Android Espresso • Android Testing Codelab
Спасибо за внимание

More Related Content

Тестирование на Android с Dagger 2

  • 2. Виды тестирования • Простые Unit тесты • Тестирование Android компонентов • Instrumentation тесты
  • 3. public final class SourcesContract {
 
 public interface Presenter extends MVPPresenter<SourcesView> {
 
 void openArticles(final @NonNull NewsSourceDto source);
 }
 
 public interface Starter {
 
 void openArticles(final @NonNull NewsSourceDto source);
 }
 
 public interface SourcesView extends MVPView {
 
 void setSources(@NonNull List<NewsSourceDto> sources);
 
 void setProgressVisible(boolean visible);
 
 void showError(@NonNull String errorMessage);
 }
 }
  • 4. final class SourcesPresenter extends BasePresenter<SourcesContract.View>
 implements SourcesContract.Presenter {
 
 @Inject
 SourcesPresenter(@NonNull Lazy<SourcesContract.Starter> starter,
 @NonNull NewsSourcesDataSource dataSource,
 @NonNull @Named(RxModule.COMPUTATION) Scheduler computationScheduler,
 @NonNull @Named(RxModule.MAIN) Scheduler observerScheduler) { …
 } }
  • 5. public final class NewsSourcesDataSource {
 
 @Inject
 public NewsSourcesDataSource(@NonNull NewsSourcesRestService service, @NonNull @Named(RxModule.NETWORK) Scheduler networkScheduler) { … } … }
  • 6. public final class NewsSourcesDataSource {
 
 @Inject
 public NewsSourcesDataSource(@NonNull NewsSourcesRestService service, @NonNull @Named(RxModule.NETWORK) Scheduler networkScheduler) { … } … } public interface NewsSourcesRestService {
 
 @NonNull
 @GET("sources")
 Single<NewsSourcesResponseDto> sources();
 }
  • 10. @RunWith(MockitoJUnitRunner.class)
 public class SourcesPresenterTest {
 
 @Mock SourcesContract.Starter mMockStarter;
 
 @Mock SourcesContract.View mMockView;
 
 @Mock NewsSourcesRestService mMockRestService;
 
 private SourcesPresenter mSourcesPresenter;
 
 @Before
 public void init() {
 Scheduler testScheduler = …;
 
 Lazy<SourcesContract.Starter> starter = () -> mMockStarter;
 NewsSourcesDataSource dataSource =
 new NewsSourcesDataSource(mMockRestService, testScheduler); 
 mSourcesPresenter = new SourcesPresenter(
 starter, dataSource, testScheduler, testScheduler);
 }
 }
  • 11. @Test
 public void test() { doAnswer(invocation -> Single.just(newNewsSourceDataResponse()))
 .when(mMockRestService) .sources(); 
 mSourcesPresenter.attachView(mMockView);
 
 verify(mMockView, times(1)).setProgressVisible(true);
 verify(mMockRestService, times(1)).sources();
 
 verify(mMockView, times(1)).setSources(any());
 verify(mMockView, times(1)).setProgressVisible(false);
 
 mSourcesPresenter.onDetachView();
 mSourcesPresenter.onDestroyView();
 }
  • 15. @RunWith(RobolectricTestRunner.class)
 @Config(sdk = Build.VERSION_CODES.LOLLIPOP, constants = BuildConfig.class)
 public class SourcesActivityTest {
 
 private SourcesActivity mSourcesActivity;
 
 @Before
 public void setup() { mSourcesActivity = Robolectric.setupActivity(SourcesActivity.class); }
 
 @Test
 public void test() throws Exception {
 final View progressView = mSourcesActivity.findViewById(R.id.progress);
 assertThat(progressView.getVisibility(), equalTo(View.GONE));
 
 final RecyclerView sourcesView = (RecyclerView) mSourcesActivity.findViewById(R.id.list);
 assertThat(sourcesView.getVisibility(), equalTo(View.VISIBLE));
 
 final SourceAdapter adapter = (SourceAdapter) sourcesView.getAdapter();
 assertThat(adapter, notNullValue());
 assertThat(adapter.getItemCount(), equalTo(1));
 final NewsSourceDto source = adapter.getItem(0);
 assertThat(source, equalTo(newNewsSourceDataResponse().getSources().get(0)));
 
 final View sourceView = sourcesView.getChildAt(0);
 final TextView sourceNameView = (TextView) sourceView.findViewById(R.id.name);
 assertThat(sourceNameView.getText(), equalTo(source.getName()));
 assertThat(sourceNameView.getVisibility(), equalTo(View.VISIBLE));
 }
 }
  • 16. Проблемы 1.Необходимо сделать тесты синхронными 2.Необходимо заменить получение данных с сервера на стабовые
  • 17. Product Flavors android {
 
 flavorDimensions ‘mode' 
 productFlavors {
 common {
 dimension = 'mode'
 }
 
 mock {
 dimension = 'mode'
 }
 }
 }
  • 19. android {
 
 flavorDimensions ‘mode'
 productFlavors {
 common { dimension = 'mode'}
 mock { dimension = 'mode'}
 }
 
 variantFilter { variant ->
 if (variant.buildType.name != 'debug') {
 def names = variant.flavors*.name
 if (names.contains('mock')) {
 setIgnore(true)
 }
 }
 }
 } Product Flavors
  • 22. Mock RxModule @Module
 public abstract class RxModule {
 
 public static final String NETWORK = “network”, MAIN = “main”, COMPUTATION = “computation"; 
 @Provides @Named(COMPUTATION)
 public static Scheduler provideComputationScheduler() {
 return Schedulers.computation();
 }
 
 @Provides @Named(NETWORK)
 public static Scheduler provideNetworkScheduler() {
 return Schedulers.computation();
 }
 
 @Provides @Named(MAIN)
 public static Scheduler provideMainScheduler() {
 return AndroidSchedulers.mainThread();
 }
 }
  • 23. Mock NewsApiModule @Module(includes = NewsNetworkModule.class)
 public abstract class NewsApiModule {
 
 @Singleton @Provides
 static ArticlesRestService provideArticlesRestService() {
 ArticlesRestService mock = Mockito.mock(ArticlesRestService.class);
 ArticlesResponseDto responseDto = new ArticlesResponseDto(STATUS_ERROR, "", emptyList(), SORT_LATEST, 0, "");
 Mockito.when(mock.articles(anyString(), isNull())).thenReturn(Single.just(responseDto));
 return mock;
 }
 
 public static NewsSourcesResponseDto newNewsSourceDataResponse() {
 NewsSourceDto newsSourceDto = new NewsSourceDto(
 "sample_id","Sample news","Sample new for Unit test”, "http://www.sample.org/item.html");
 return new NewsSourcesResponseDto(STATUS_OK, singletonList(newsSourceDto), 0, "");
 }
 
 @Singleton @Provides
 static NewsSourcesRestService provideNewsSourcesRestService() {
 NewsSourcesRestService mock = Mockito.mock(NewsSourcesRestService.class);
 Mockito.when(mock.sources()).thenReturn(Single.just(newNewsSourceDataResponse()));
 return mock;
 }
 }
  • 27. Настройка сборки android {
 
 defaultConfig { 
 testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
 
 }
 }
  • 28. @RunWith(AndroidJUnit4.class) @LargeTest
 public class SourceActivityTest {
 
 @Rule
 public IntentsTestRule<SourcesActivity> mActivityRule = new IntentsTestRule<>(SourcesActivity.class);
 
 @Test
 public void test() throws Exception {
 onView(withId(R.id.list))
 .check(matches(childCount(1)))
 .check(matches(hasDescendant(withId(R.id.name))));
 
 NewsSourcesResponseDto responseDto = NewsApiModule.newNewsSourceDataResponse();
 onView(withId(R.id.name))
 .check(matches(withText(responseDto.getSources().get(0).getName())));
 
 onView(withId(R.id.list))
 .perform(actionOnItemAtPosition(0, click()));
 
 ComponentName articlesActivity =
 new ComponentName(mActivityRule.getActivity(), ArticlesActivity.class);
 intended(hasComponent(articlesActivity));
 }
 }
  • 29. Espresso • Core • Contrib • Idling Resources • Intents • Web
  • 30. Материалы • JUnit4 • Mockito • Basic Guide • Robolectric • Android:Getting Started with Testing • Android Testing Support Library • Android Espresso • Android Testing Codelab