| // Copyright 2018 The Feed Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.android.libraries.feed.infraintegration; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.MockitoAnnotations.initMocks; |
| |
| import com.google.android.libraries.feed.api.common.MutationContext; |
| import com.google.android.libraries.feed.api.common.ThreadUtils; |
| import com.google.android.libraries.feed.api.modelprovider.ModelProvider; |
| import com.google.android.libraries.feed.api.modelprovider.ModelProvider.State; |
| import com.google.android.libraries.feed.api.modelprovider.ModelProviderFactory; |
| import com.google.android.libraries.feed.api.modelprovider.ModelProviderObserver; |
| import com.google.android.libraries.feed.api.sessionmanager.SessionManager; |
| import com.google.android.libraries.feed.common.testing.InfraIntegrationScope; |
| import com.google.android.libraries.feed.common.testing.WireProtocolResponseBuilder; |
| import com.google.android.libraries.feed.common.testing.WireProtocolResponseBuilder.WireProtocolInfo; |
| import com.google.android.libraries.feed.host.logging.RequestReason; |
| import com.google.android.libraries.feed.testing.requestmanager.FakeRequestManager; |
| import com.google.search.now.feed.client.StreamDataProto.UiContext; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.mockito.Mock; |
| import org.robolectric.RobolectricTestRunner; |
| |
| /** Test which verifies the ModelProvider state for the empty stream cases. */ |
| @RunWith(RobolectricTestRunner.class) |
| public class EmptyStreamTest { |
| @Mock private ThreadUtils threadUtils; |
| |
| private FakeRequestManager requestManager; |
| private SessionManager sessionManager; |
| private ModelProviderFactory modelProviderFactory; |
| |
| @Before |
| public void setUp() { |
| initMocks(this); |
| InfraIntegrationScope scope = new InfraIntegrationScope.Builder(threadUtils).build(); |
| requestManager = scope.getRequestManager(); |
| sessionManager = scope.getSessionManager(); |
| modelProviderFactory = scope.getModelProviderFactory(); |
| } |
| |
| @Test |
| public void emptyStream_observable() { |
| // ModelProvider will be initialized from empty $HEAD |
| ModelProvider modelProvider = modelProviderFactory.createNew(null); |
| assertThat(modelProvider.getCurrentState()).isEqualTo(State.READY); |
| assertThat(modelProvider.getRootFeature()).isNull(); |
| ModelProviderObserver observer = mock(ModelProviderObserver.class); |
| modelProvider.registerObserver(observer); |
| verify(observer).onSessionStart(); |
| } |
| |
| @Test |
| public void emptyStream_observableInvalidate() { |
| // Verify both ModelProviderObserver events are called |
| ModelProvider modelProvider = modelProviderFactory.createNew(null); |
| assertThat(modelProvider.getCurrentState()).isEqualTo(State.READY); |
| ModelProviderObserver observer = mock(ModelProviderObserver.class); |
| modelProvider.registerObserver(observer); |
| verify(observer).onSessionStart(); |
| modelProvider.invalidate(); |
| verify(observer).onSessionFinished(UiContext.getDefaultInstance()); |
| } |
| |
| @Test |
| public void emptyStream_unregisterObservable() { |
| // Verify unregister works, so the ModelProviderObserver is not called for invalidate |
| ModelProvider modelProvider = modelProviderFactory.createNew(null); |
| assertThat(modelProvider.getCurrentState()).isEqualTo(State.READY); |
| ModelProviderObserver observer = mock(ModelProviderObserver.class); |
| modelProvider.registerObserver(observer); |
| verify(observer).onSessionStart(); |
| modelProvider.unregisterObserver(observer); |
| modelProvider.invalidate(); |
| verify(observer, never()).onSessionFinished(UiContext.getDefaultInstance()); |
| } |
| |
| @Test |
| public void emptyStream_emptyResponse() { |
| // Create an empty stream through a response |
| WireProtocolResponseBuilder responseBuilder = new WireProtocolResponseBuilder(); |
| requestManager.queueResponse(responseBuilder.build()); |
| requestManager.triggerRefresh( |
| RequestReason.OPEN_WITHOUT_CONTENT, |
| sessionManager.getUpdateConsumer(MutationContext.EMPTY_CONTEXT)); |
| ModelProvider modelProvider = modelProviderFactory.createNew(null); |
| |
| assertThat(modelProvider).isNotNull(); |
| assertThat(modelProvider.getCurrentState()).isEqualTo(State.READY); |
| assertThat(modelProvider.getRootFeature()).isNull(); |
| |
| WireProtocolInfo protocolInfo = responseBuilder.getWireProtocolInfo(); |
| // No features added |
| assertThat(protocolInfo.featuresAdded).hasSize(0); |
| assertThat(protocolInfo.hasClearOperation).isFalse(); |
| } |
| } |