Revert D52033328: Convert the last Unit Tests to Kotlin

Differential Revision:
D52033328

Original commit changeset: fabe19f88129

Original Phabricator Diff: D52033328

fbshipit-source-id: 3186196dd6df1bd720164894828f8fd1c9215710

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/ReactHostImpl.java

@@ -96,7 +96,7 @@ public class ReactHostImpl implements ReactHost {
 
   private final Context mContext;
   private final ReactHostDelegate mReactHostDelegate;
-  @Nullable private final ComponentFactory mComponentFactory;
+  private final ComponentFactory mComponentFactory;
   private final ReactJsExceptionHandler mReactJsExceptionHandler;
   private final DevSupportManager mDevSupportManager;
   private final Executor mBGExecutor;
@@ -137,7 +137,7 @@ public class ReactHostImpl implements ReactHost {
   public ReactHostImpl(
       Context context,
       ReactHostDelegate delegate,
-      @Nullable ComponentFactory componentFactory,
+      ComponentFactory componentFactory,
       boolean allowPackagerServerAccess,
       ReactJsExceptionHandler reactJsExceptionHandler,
       boolean useDevSupport) {
@@ -155,7 +155,7 @@ public ReactHostImpl(
   public ReactHostImpl(
       Context context,
       ReactHostDelegate delegate,
-      @Nullable ComponentFactory componentFactory,
+      ComponentFactory componentFactory,
       Executor bgExecutor,
       Executor uiExecutor,
       ReactJsExceptionHandler reactJsExceptionHandler,

packages/react-native/ReactAndroid/src/test/java/com/facebook/react/runtime/BridgelessReactContextTest.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.runtime;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.doReturn;
+
+import android.app.Activity;
+import android.content.Context;
+import com.facebook.react.bridge.JSIModuleType;
+import com.facebook.react.uimanager.UIManagerModule;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentMatchers;
+import org.mockito.Mockito;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+
+/** Tests {@link BridgelessReactContext} */
+@RunWith(RobolectricTestRunner.class)
+public class BridgelessReactContextTest {
+
+  private Context mContext;
+  private ReactHostImpl mReactHost;
+  private BridgelessReactContext mBridgelessReactContext;
+
+  @Before
+  public void setUp() {
+    mContext = Robolectric.buildActivity(Activity.class).create().get();
+    mReactHost = Mockito.mock(ReactHostImpl.class);
+    mBridgelessReactContext = new BridgelessReactContext(mContext, mReactHost);
+  }
+
+  @Test
+  public void getNativeModuleTest() {
+    UIManagerModule mUiManagerModule = Mockito.mock(UIManagerModule.class);
+    doReturn(mUiManagerModule)
+        .when(mReactHost)
+        .getNativeModule(ArgumentMatchers.<Class<UIManagerModule>>any());
+
+    UIManagerModule uiManagerModule =
+        mBridgelessReactContext.getNativeModule(UIManagerModule.class);
+
+    assertThat(uiManagerModule).isEqualTo(mUiManagerModule);
+  }
+
+  @Test(expected = UnsupportedOperationException.class)
+  public void getJSIModule_throwsException() {
+    mBridgelessReactContext.getJSIModule(JSIModuleType.TurboModuleManager);
+  }
+
+  // Disable this test for now due to mocking FabricUIManager fails
+  // @Test
+  // public void getJSIModuleTest() {
+  //   FabricUIManager fabricUiManager = Mockito.mock(FabricUIManager.class);
+  //   doReturn(fabricUiManager).when(mReactHost).getUIManager();
+  //   assertThat(mBridgelessReactContext.getJSIModule(JSIModuleType.UIManager))
+  //       .isEqualTo(fabricUiManager);
+  // }
+
+  @Test(expected = UnsupportedOperationException.class)
+  public void getCatalystInstance_throwsException() {
+    mBridgelessReactContext.getCatalystInstance();
+  }
+}

packages/react-native/ReactAndroid/src/test/java/com/facebook/react/runtime/ReactHostTest.java

@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.runtime;
+
+import static android.os.Looper.getMainLooper;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.MockitoAnnotations.initMocks;
+import static org.robolectric.Shadows.shadowOf;
+
+import android.app.Activity;
+import com.facebook.react.MemoryPressureRouter;
+import com.facebook.react.bridge.JSBundleLoader;
+import com.facebook.react.bridge.MemoryPressureListener;
+import com.facebook.react.bridge.ReactContext;
+import com.facebook.react.bridge.UIManager;
+import com.facebook.react.common.LifecycleState;
+import com.facebook.react.devsupport.interfaces.PackagerStatusCallback;
+import com.facebook.react.fabric.ComponentFactory;
+import com.facebook.react.interfaces.TaskInterface;
+import com.facebook.react.runtime.internal.bolts.TaskCompletionSource;
+import com.facebook.react.uimanager.events.BlackHoleEventDispatcher;
+import com.facebook.react.uimanager.events.EventDispatcher;
+import com.facebook.testutils.shadows.ShadowSoLoader;
+import java.util.concurrent.TimeUnit;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.android.controller.ActivityController;
+import org.robolectric.annotation.Config;
+import org.robolectric.annotation.LooperMode;
+
+/** Tests {@linkcom.facebook.react.runtime.ReactHostImpl} */
+@Ignore("Ignore for now as these tests fail in OSS only")
+@RunWith(RobolectricTestRunner.class)
+@Config(shadows = ShadowSoLoader.class)
+@LooperMode(LooperMode.Mode.PAUSED)
+public class ReactHostTest {
+
+  private ReactHostDelegate mReactHostDelegate;
+  private ReactInstance mReactInstance;
+  private MemoryPressureRouter mMemoryPressureRouter;
+  private BridgelessDevSupportManager mDevSupportManager;
+  private JSBundleLoader mJSBundleLoader;
+  private ReactHostImpl mReactHost;
+  private ActivityController<Activity> mActivityController;
+  private ComponentFactory mComponentFactory;
+  private BridgelessReactContext mBridgelessReactContext;
+
+  @Before
+  public void setUp() throws Exception {
+    initMocks(this);
+
+    mActivityController = Robolectric.buildActivity(Activity.class).create().start().resume();
+
+    mReactHostDelegate = mock(ReactHostDelegate.class);
+    mReactInstance = mock(ReactInstance.class);
+    mMemoryPressureRouter = mock(MemoryPressureRouter.class);
+    mDevSupportManager = mock(BridgelessDevSupportManager.class);
+    mJSBundleLoader = mock(JSBundleLoader.class);
+    mComponentFactory = mock(ComponentFactory.class);
+    mBridgelessReactContext = mock(BridgelessReactContext.class);
+
+    // TODO This should be replaced with proper mocking once this test is un-ignored
+    //  whenNew(ReactInstance.class).withAnyArguments().thenReturn(mReactInstance);
+    //
+    // whenNew(BridgelessReactContext.class).withAnyArguments().thenReturn(mBridgelessReactContext);
+    //  whenNew(MemoryPressureRouter.class).withAnyArguments().thenReturn(mMemoryPressureRouter);
+    //
+    // whenNew(BridgelessDevSupportManager.class).withAnyArguments().thenReturn(mDevSupportManager);
+
+    doReturn(mJSBundleLoader).when(mReactHostDelegate).getJsBundleLoader();
+
+    mReactHost =
+        new ReactHostImpl(
+            mActivityController.get().getApplication(),
+            mReactHostDelegate,
+            mComponentFactory,
+            false,
+            null,
+            false);
+
+    TaskCompletionSource<Boolean> taskCompletionSource = new TaskCompletionSource<>();
+    taskCompletionSource.setResult(true);
+    // TODO This should be replaced with proper mocking once this test is un-ignored
+    //  whenNew(TaskCompletionSource.class).withAnyArguments().thenReturn(taskCompletionSource);
+  }
+
+  @Test
+  public void getEventDispatcher_returnsBlackHoleEventDispatcher() {
+    EventDispatcher eventDispatcher = mReactHost.getEventDispatcher();
+    assertThat(eventDispatcher).isInstanceOf(BlackHoleEventDispatcher.class);
+  }
+
+  @Test
+  public void getUIManager_returnsNullIfNoInstance() {
+    UIManager uiManager = mReactHost.getUIManager();
+    assertThat(uiManager).isNull();
+  }
+
+  @Test
+  public void testGetDevSupportManager() {
+    assertThat(mReactHost.getDevSupportManager()).isEqualTo(mDevSupportManager);
+  }
+
+  @Test
+  public void testStart() throws Exception {
+    doNothing().when(mDevSupportManager).isPackagerRunning(any(PackagerStatusCallback.class));
+    assertThat(mReactHost.isInstanceInitialized()).isFalse();
+
+    waitForTaskUIThread(mReactHost.start());
+
+    assertThat(mReactHost.isInstanceInitialized()).isTrue();
+    assertThat(mReactHost.getCurrentReactContext()).isNotNull();
+    verify(mMemoryPressureRouter).addMemoryPressureListener((MemoryPressureListener) any());
+  }
+
+  private void startReactHost() throws Exception {
+    waitForTaskUIThread(mReactHost.start());
+  }
+
+  @Test
+  public void testDestroy() throws Exception {
+    startReactHost();
+
+    waitForTaskUIThread(mReactHost.destroy("Destroying from testing infra", null));
+    assertThat(mReactHost.isInstanceInitialized()).isFalse();
+    assertThat(mReactHost.getCurrentReactContext()).isNull();
+  }
+
+  @Test
+  public void testReload() throws Exception {
+    startReactHost();
+
+    ReactContext oldReactContext = mReactHost.getCurrentReactContext();
+    BridgelessReactContext newReactContext = mock(BridgelessReactContext.class);
+    assertThat(newReactContext).isNotEqualTo(oldReactContext);
+    // TODO This should be replaced with proper mocking once this test is un-ignored
+    //  whenNew(BridgelessReactContext.class).withAnyArguments().thenReturn(newReactContext);
+
+    waitForTaskUIThread(mReactHost.reload("Reload from testing infra"));
+
+    assertThat(mReactHost.isInstanceInitialized()).isTrue();
+    assertThat(mReactHost.getCurrentReactContext()).isNotNull();
+    assertThat(mReactHost.getCurrentReactContext()).isEqualTo(newReactContext);
+    assertThat(mReactHost.getCurrentReactContext()).isNotEqualTo(oldReactContext);
+  }
+
+  @Test
+  public void testLifecycleStateChanges() throws Exception {
+    startReactHost();
+
+    assertThat(mReactHost.getLifecycleState()).isEqualTo(LifecycleState.BEFORE_CREATE);
+    mReactHost.onHostResume(mActivityController.get());
+    assertThat(mReactHost.getLifecycleState()).isEqualTo(LifecycleState.RESUMED);
+    mReactHost.onHostPause(mActivityController.get());
+    assertThat(mReactHost.getLifecycleState()).isEqualTo(LifecycleState.BEFORE_RESUME);
+    mReactHost.onHostDestroy(mActivityController.get());
+    assertThat(mReactHost.getLifecycleState()).isEqualTo(LifecycleState.BEFORE_CREATE);
+  }
+
+  private static <T> void waitForTaskUIThread(TaskInterface<T> task) throws InterruptedException {
+    boolean isTaskCompleted = false;
+    while (!isTaskCompleted) {
+      if (!task.waitForCompletion(4, TimeUnit.MILLISECONDS)) {
+        shadowOf(getMainLooper()).idle();
+      } else {
+        if (task.isCancelled() || task.isFaulted()) {
+          throw new RuntimeException("Task was cancelled or faulted. Error: " + task.getError());
+        }
+        isTaskCompleted = true;
+      }
+    }
+  }
+}