Ensure appLaunched event is emitted only when app is resumed

Under certain conditions, app launched event was emitted when the Android Activity isn't in resumed state. In this case, setting root isn't possible since ReactContext doesn't have an instance of the Activity (it can even be destroyed).

This PR ensures the event is emitted only when the Activity is resumed and root can be set.

lib/android/app/src/main/java/com/reactnativenavigation/parse/LayoutFactory.java

@@ -38,21 +38,27 @@ import static com.reactnativenavigation.parse.Options.parse;
 
 public class LayoutFactory {
 
-	private final Activity activity;
-    private final ChildControllersRegistry childRegistry;
+	private Activity activity;
+    private ChildControllersRegistry childRegistry;
 	private final ReactInstanceManager reactInstanceManager;
     private EventEmitter eventEmitter;
     private Map<String, ExternalComponentCreator> externalComponentCreators;
     private Options defaultOptions;
-    private final TypefaceLoader typefaceManager;
+    private TypefaceLoader typefaceManager;
 
-    public LayoutFactory(Activity activity, ChildControllersRegistry childRegistry, final ReactInstanceManager reactInstanceManager, EventEmitter eventEmitter, Map<String, ExternalComponentCreator> externalComponentCreators, Options defaultOptions) {
-		this.activity = activity;
-        this.childRegistry = childRegistry;
+    public void setDefaultOptions(Options defaultOptions) {
+        this.defaultOptions = defaultOptions;
+    }
+
+    public LayoutFactory(final ReactInstanceManager reactInstanceManager) {
         this.reactInstanceManager = reactInstanceManager;
+    }
+
+    public void init(Activity activity, EventEmitter eventEmitter, ChildControllersRegistry childRegistry, Map<String, ExternalComponentCreator> externalComponentCreators) {
+        this.activity = activity;
         this.eventEmitter = eventEmitter;
+        this.childRegistry = childRegistry;
         this.externalComponentCreators = externalComponentCreators;
-        this.defaultOptions = defaultOptions;
         typefaceManager = new TypefaceLoader(activity);
     }
 

lib/android/app/src/main/java/com/reactnativenavigation/parse/parsers/JSONParser.java

@@ -9,7 +9,7 @@ import org.json.JSONException;
 import org.json.JSONObject;
 
 public class JSONParser {
-    public static JSONObject parse(ReadableMap map) {
+    public JSONObject parse(ReadableMap map) {
         try {
             ReadableMapKeySetIterator it = map.keySetIterator();
             JSONObject result = new JSONObject();
@@ -41,7 +41,7 @@ public class JSONParser {
         }
     }
 
-    public static JSONArray parse(ReadableArray arr) {
+    public JSONArray parse(ReadableArray arr) {
         JSONArray result = new JSONArray();
         for (int i = 0; i < arr.size(); i++) {
             switch (arr.getType(i)) {

lib/android/app/src/main/java/com/reactnativenavigation/react/LifecycleEventListenerAdapter.java

@@ -0,0 +1,20 @@
+package com.reactnativenavigation.react;
+
+import com.facebook.react.bridge.LifecycleEventListener;
+
+public class LifecycleEventListenerAdapter implements LifecycleEventListener {
+    @Override
+    public void onHostResume() {
+
+    }
+
+    @Override
+    public void onHostPause() {
+
+    }
+
+    @Override
+    public void onHostDestroy() {
+
+    }
+}

lib/android/app/src/main/java/com/reactnativenavigation/react/NavigationModule.java

@@ -25,161 +25,169 @@ import com.reactnativenavigation.utils.TypefaceLoader;
 import com.reactnativenavigation.utils.UiThread;
 import com.reactnativenavigation.utils.UiUtils;
 import com.reactnativenavigation.viewcontrollers.ViewController;
-import com.reactnativenavigation.viewcontrollers.externalcomponent.ExternalComponentCreator;
 import com.reactnativenavigation.viewcontrollers.navigator.Navigator;
 
 import java.util.ArrayList;
-import java.util.Map;
 
 public class NavigationModule extends ReactContextBaseJavaModule {
-	private static final String NAME = "RNNBridgeModule";
+    private static final String NAME = "RNNBridgeModule";
 
     private final Now now = new Now();
-	private final ReactInstanceManager reactInstanceManager;
+    private final ReactInstanceManager reactInstanceManager;
+    private final JSONParser jsonParser;
+    private final LayoutFactory layoutFactory;
     private EventEmitter eventEmitter;
 
     @SuppressWarnings("WeakerAccess")
-    public NavigationModule(ReactApplicationContext reactContext, ReactInstanceManager reactInstanceManager) {
-		super(reactContext);
-		this.reactInstanceManager = reactInstanceManager;
-		reactInstanceManager.addReactInstanceEventListener(context -> eventEmitter = new EventEmitter(context));
+    public NavigationModule(ReactApplicationContext reactContext, ReactInstanceManager reactInstanceManager, LayoutFactory layoutFactory) {
+        this(reactContext, reactInstanceManager, new JSONParser(), layoutFactory);
     }
 
-	@Override
-	public String getName() {
-		return NAME;
-	}
+    public NavigationModule(ReactApplicationContext reactContext, ReactInstanceManager reactInstanceManager, JSONParser jsonParser, LayoutFactory layoutFactory) {
+        super(reactContext);
+        this.reactInstanceManager = reactInstanceManager;
+        this.jsonParser = jsonParser;
+        this.layoutFactory = layoutFactory;
+        reactContext.addLifecycleEventListener(new LifecycleEventListenerAdapter() {
+            @Override
+            public void onHostResume() {
+                eventEmitter = new EventEmitter(reactContext);
+                navigator().setEventEmitter(eventEmitter);
+                layoutFactory.init(
+                        activity(),
+                        eventEmitter,
+                        navigator().getChildRegistry(),
+                        ((NavigationApplication) activity().getApplication()).getExternalComponents()
+                );
+            }
+        });
+    }
+
+    @NonNull
+    @Override
+    public String getName() {
+        return NAME;
+    }
 
-	@ReactMethod
+    @ReactMethod
     public void getConstants(Promise promise) {
         ReactApplicationContext ctx = getReactApplicationContext();
         WritableMap constants = Arguments.createMap();
-        constants.putString(Constants.BACK_BUTTON_JS_KEY,    Constants.BACK_BUTTON_ID);
-        constants.putDouble(Constants.BOTTOM_TABS_HEIGHT_KEY,    Constants.BOTTOM_TABS_HEIGHT);
+        constants.putString(Constants.BACK_BUTTON_JS_KEY, Constants.BACK_BUTTON_ID);
+        constants.putDouble(Constants.BOTTOM_TABS_HEIGHT_KEY, Constants.BOTTOM_TABS_HEIGHT);
         constants.putDouble(Constants.STATUS_BAR_HEIGHT_KEY, UiUtils.pxToDp(ctx, UiUtils.getStatusBarHeight(ctx)));
-        constants.putDouble(Constants.TOP_BAR_HEIGHT_KEY,    UiUtils.pxToDp(ctx, UiUtils.getTopBarHeight(ctx)));
+        constants.putDouble(Constants.TOP_BAR_HEIGHT_KEY, UiUtils.pxToDp(ctx, UiUtils.getTopBarHeight(ctx)));
         promise.resolve(constants);
     }
 
-	@ReactMethod
-	public void setRoot(String commandId, ReadableMap rawLayoutTree, Promise promise) {
-        final LayoutNode layoutTree = LayoutNodeParser.parse(JSONParser.parse(rawLayoutTree).optJSONObject("root"));
-		handle(() -> {
-            navigator().setEventEmitter(eventEmitter);
-            final ViewController viewController = newLayoutFactory().create(layoutTree);
+    @ReactMethod
+    public void setRoot(String commandId, ReadableMap rawLayoutTree, Promise promise) {
+        final LayoutNode layoutTree = LayoutNodeParser.parse(jsonParser.parse(rawLayoutTree).optJSONObject("root"));
+        handle(() -> {
+            final ViewController viewController = layoutFactory.create(layoutTree);
             navigator().setRoot(viewController, new NativeCommandListener(commandId, promise, eventEmitter, now), reactInstanceManager);
         });
-	}
+    }
 
-	@ReactMethod
-	public void setDefaultOptions(ReadableMap options) {
-        handle(() -> navigator().setDefaultOptions(parse(options)));
+    @ReactMethod
+    public void setDefaultOptions(ReadableMap options) {
+        handle(() -> {
+            Options defaultOptions = parse(options);
+            layoutFactory.setDefaultOptions(defaultOptions);
+            navigator().setDefaultOptions(defaultOptions);
+        });
     }
 
-	@ReactMethod
-	public void mergeOptions(String onComponentId, @Nullable ReadableMap options) {
-		handle(() -> navigator().mergeOptions(onComponentId, parse(options)));
-	}
+    @ReactMethod
+    public void mergeOptions(String onComponentId, @Nullable ReadableMap options) {
+        handle(() -> navigator().mergeOptions(onComponentId, parse(options)));
+    }
 
-	@ReactMethod
-	public void push(String commandId, String onComponentId, ReadableMap rawLayoutTree, Promise promise) {
-        final LayoutNode layoutTree = LayoutNodeParser.parse(JSONParser.parse(rawLayoutTree));
-		handle(() -> {
-            final ViewController viewController = newLayoutFactory().create(layoutTree);
+    @ReactMethod
+    public void push(String commandId, String onComponentId, ReadableMap rawLayoutTree, Promise promise) {
+        final LayoutNode layoutTree = LayoutNodeParser.parse(jsonParser.parse(rawLayoutTree));
+        handle(() -> {
+            final ViewController viewController = layoutFactory.create(layoutTree);
             navigator().push(onComponentId, viewController, new NativeCommandListener(commandId, promise, eventEmitter, now));
         });
-	}
+    }
 
     @ReactMethod
     public void setStackRoot(String commandId, String onComponentId, ReadableArray children, Promise promise) {
         handle(() -> {
             ArrayList<ViewController> _children = new ArrayList();
             for (int i = 0; i < children.size(); i++) {
-                final LayoutNode layoutTree = LayoutNodeParser.parse(JSONParser.parse(children.getMap(i)));
-                _children.add(newLayoutFactory().create(layoutTree));
+                final LayoutNode layoutTree = LayoutNodeParser.parse(jsonParser.parse(children.getMap(i)));
+                _children.add(layoutFactory.create(layoutTree));
             }
             navigator().setStackRoot(onComponentId, _children, new NativeCommandListener(commandId, promise, eventEmitter, now));
         });
     }
 
-	@ReactMethod
-	public void pop(String commandId, String componentId, @Nullable ReadableMap mergeOptions, Promise promise) {
-		handle(() -> navigator().pop(componentId, parse(mergeOptions), new NativeCommandListener(commandId, promise, eventEmitter, now)));
-	}
+    @ReactMethod
+    public void pop(String commandId, String componentId, @Nullable ReadableMap mergeOptions, Promise promise) {
+        handle(() -> navigator().pop(componentId, parse(mergeOptions), new NativeCommandListener(commandId, promise, eventEmitter, now)));
+    }
 
-	@ReactMethod
-	public void popTo(String commandId, String componentId, @Nullable ReadableMap mergeOptions, Promise promise) {
-		handle(() -> navigator().popTo(componentId, parse(mergeOptions), new NativeCommandListener(commandId, promise, eventEmitter, now)));
-	}
+    @ReactMethod
+    public void popTo(String commandId, String componentId, @Nullable ReadableMap mergeOptions, Promise promise) {
+        handle(() -> navigator().popTo(componentId, parse(mergeOptions), new NativeCommandListener(commandId, promise, eventEmitter, now)));
+    }
 
-	@ReactMethod
-	public void popToRoot(String commandId, String componentId, @Nullable ReadableMap mergeOptions, Promise promise) {
-		handle(() -> navigator().popToRoot(componentId, parse(mergeOptions), new NativeCommandListener(commandId, promise, eventEmitter, now)));
-	}
+    @ReactMethod
+    public void popToRoot(String commandId, String componentId, @Nullable ReadableMap mergeOptions, Promise promise) {
+        handle(() -> navigator().popToRoot(componentId, parse(mergeOptions), new NativeCommandListener(commandId, promise, eventEmitter, now)));
+    }
 
-	@ReactMethod
-	public void showModal(String commandId, ReadableMap rawLayoutTree, Promise promise) {
-		final LayoutNode layoutTree = LayoutNodeParser.parse(JSONParser.parse(rawLayoutTree));
-		handle(() -> {
-            final ViewController viewController = newLayoutFactory().create(layoutTree);
+    @ReactMethod
+    public void showModal(String commandId, ReadableMap rawLayoutTree, Promise promise) {
+        final LayoutNode layoutTree = LayoutNodeParser.parse(jsonParser.parse(rawLayoutTree));
+        handle(() -> {
+            final ViewController viewController = layoutFactory.create(layoutTree);
             navigator().showModal(viewController, new NativeCommandListener(commandId, promise, eventEmitter, now));
         });
-	}
+    }
 
-	@ReactMethod
-	public void dismissModal(String commandId, String componentId, @Nullable ReadableMap mergeOptions, Promise promise) {
-		handle(() -> {
+    @ReactMethod
+    public void dismissModal(String commandId, String componentId, @Nullable ReadableMap mergeOptions, Promise promise) {
+        handle(() -> {
             navigator().mergeOptions(componentId, parse(mergeOptions));
             navigator().dismissModal(componentId, new NativeCommandListener(commandId, promise, eventEmitter, now));
         });
-	}
+    }
 
     @ReactMethod
-	public void dismissAllModals(String commandId, @Nullable ReadableMap mergeOptions, Promise promise) {
-		handle(() -> navigator().dismissAllModals(parse(mergeOptions), new NativeCommandListener(commandId, promise, eventEmitter, now)));
-	}
+    public void dismissAllModals(String commandId, @Nullable ReadableMap mergeOptions, Promise promise) {
+        handle(() -> navigator().dismissAllModals(parse(mergeOptions), new NativeCommandListener(commandId, promise, eventEmitter, now)));
+    }
 
-	@ReactMethod
-	public void showOverlay(String commandId, ReadableMap rawLayoutTree, Promise promise) {
-        final LayoutNode layoutTree = LayoutNodeParser.parse(JSONParser.parse(rawLayoutTree));
+    @ReactMethod
+    public void showOverlay(String commandId, ReadableMap rawLayoutTree, Promise promise) {
+        final LayoutNode layoutTree = LayoutNodeParser.parse(jsonParser.parse(rawLayoutTree));
         handle(() -> {
-            final ViewController viewController = newLayoutFactory().create(layoutTree);
+            final ViewController viewController = layoutFactory.create(layoutTree);
             navigator().showOverlay(viewController, new NativeCommandListener(commandId, promise, eventEmitter, now));
         });
-	}
-
-	@ReactMethod
-	public void dismissOverlay(String commandId, String componentId, Promise promise) {
-		handle(() -> navigator().dismissOverlay(componentId, new NativeCommandListener(commandId, promise, eventEmitter, now)));
-	}
-
-	private Navigator navigator() {
-		return activity().getNavigator();
-	}
+    }
 
-	@NonNull
-	private LayoutFactory newLayoutFactory() {
-		return new LayoutFactory(activity(),
-                navigator().getChildRegistry(),
-                reactInstanceManager,
-                eventEmitter,
-                externalComponentCreator(),
-                navigator().getDefaultOptions()
-        );
-	}
+    @ReactMethod
+    public void dismissOverlay(String commandId, String componentId, Promise promise) {
+        handle(() -> navigator().dismissOverlay(componentId, new NativeCommandListener(commandId, promise, eventEmitter, now)));
+    }
 
-    private  Options parse(@Nullable ReadableMap mergeOptions) {
-        return mergeOptions == null ? Options.EMPTY : Options.parse(new TypefaceLoader(activity()), JSONParser.parse(mergeOptions));
+    private Navigator navigator() {
+        return activity().getNavigator();
     }
 
-	private Map<String, ExternalComponentCreator> externalComponentCreator() {
-        return ((NavigationApplication) activity().getApplication()).getExternalComponents();
+    private Options parse(@Nullable ReadableMap mergeOptions) {
+        return mergeOptions ==
+               null ? Options.EMPTY : Options.parse(new TypefaceLoader(activity()), jsonParser.parse(mergeOptions));
     }
 
-	private void handle(Runnable task) {
-		if (activity() == null || activity().isFinishing()) return;
-		UiThread.post(task);
-	}
+    private void handle(Runnable task) {
+        if (activity() == null || activity().isFinishing()) return;
+        UiThread.post(task);
+    }
 
     private NavigationActivity activity() {
         return (NavigationActivity) getCurrentActivity();

lib/android/app/src/main/java/com/reactnativenavigation/react/NavigationPackage.java

@@ -1,30 +1,40 @@
 package com.reactnativenavigation.react;
 
+import android.support.annotation.NonNull;
+
 import com.facebook.react.ReactNativeHost;
 import com.facebook.react.ReactPackage;
 import com.facebook.react.bridge.NativeModule;
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.uimanager.ViewManager;
+import com.reactnativenavigation.parse.LayoutFactory;
 
 import java.util.Collections;
 import java.util.List;
 
 public class NavigationPackage implements ReactPackage {
 
-	private ReactNativeHost reactNativeHost;
+    private ReactNativeHost reactNativeHost;
 
-	@SuppressWarnings("WeakerAccess")
+    @SuppressWarnings("WeakerAccess")
     public NavigationPackage(final ReactNativeHost reactNativeHost) {
-		this.reactNativeHost = reactNativeHost;
-	}
+        this.reactNativeHost = reactNativeHost;
+    }
 
-	@Override
-	public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
-		return Collections.singletonList(new NavigationModule(reactContext, reactNativeHost.getReactInstanceManager()));
-	}
+    @NonNull
+    @Override
+    public List<NativeModule> createNativeModules(@NonNull ReactApplicationContext reactContext) {
+        return Collections.singletonList(new NavigationModule(
+                        reactContext,
+                        reactNativeHost.getReactInstanceManager(),
+                        new LayoutFactory(reactNativeHost.getReactInstanceManager())
+                )
+        );
+    }
 
-	@Override
-	public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
+    @NonNull
+    @Override
+    public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
         return Collections.singletonList(new ElementViewManager());
     }
 }

lib/android/app/src/main/java/com/reactnativenavigation/react/NavigationReactInitializer.java

@@ -11,33 +11,36 @@ public class NavigationReactInitializer implements ReactInstanceManager.ReactIns
 	private final ReactInstanceManager reactInstanceManager;
 	private final DevPermissionRequest devPermissionRequest;
 	private boolean waitingForAppLaunchEvent = true;
+	private boolean isActivityReadyForUi = false;
 
-	public NavigationReactInitializer(ReactInstanceManager reactInstanceManager, boolean isDebug) {
+	NavigationReactInitializer(ReactInstanceManager reactInstanceManager, boolean isDebug) {
 		this.reactInstanceManager = reactInstanceManager;
 		this.devPermissionRequest = new DevPermissionRequest(isDebug);
 	}
 
-	public void onActivityCreated(final NavigationActivity activity) {
+	void onActivityCreated() {
 		reactInstanceManager.addReactInstanceEventListener(this);
 		waitingForAppLaunchEvent = true;
 	}
 
-	public void onActivityResumed(NavigationActivity activity) {
+	void onActivityResumed(NavigationActivity activity) {
 		if (devPermissionRequest.shouldAskPermission(activity)) {
 			devPermissionRequest.askPermission(activity);
 		} else {
 			reactInstanceManager.onHostResume(activity, activity);
+            isActivityReadyForUi = true;
 			prepareReactApp();
 		}
 	}
 
-	public void onActivityPaused(NavigationActivity activity) {
+	void onActivityPaused(NavigationActivity activity) {
+        isActivityReadyForUi = false;
 		if (reactInstanceManager.hasStartedCreatingInitialContext()) {
 			reactInstanceManager.onHostPause(activity);
 		}
 	}
 
-	public void onActivityDestroyed(NavigationActivity activity) {
+	void onActivityDestroyed(NavigationActivity activity) {
 		reactInstanceManager.removeReactInstanceEventListener(this);
 		if (reactInstanceManager.hasStartedCreatingInitialContext()) {
 			reactInstanceManager.onHostDestroy(activity);
@@ -55,6 +58,7 @@ public class NavigationReactInitializer implements ReactInstanceManager.ReactIns
 	}
 
 	private void emitAppLaunched(@NonNull ReactContext context) {
+	    if (!isActivityReadyForUi) return;
 		waitingForAppLaunchEvent = false;
 		new EventEmitter(context).appLaunched();
 	}

lib/android/app/src/main/java/com/reactnativenavigation/react/ReactGateway.java

@@ -37,7 +37,7 @@ public class ReactGateway {
 	}
 
 	public void onActivityCreated(NavigationActivity activity) {
-		initializer.onActivityCreated(activity);
+		initializer.onActivityCreated();
         jsDevReloadHandler.setReloadListener(activity);
 	}
 

lib/android/app/src/test/java/com/reactnativenavigation/parse/parsers/JSONParserTest.java

@@ -22,7 +22,7 @@ public class JSONParserTest extends BaseTest {
         input.putMap("keyMap", new JavaOnlyMap());
         input.putNull("bla");
 
-        JSONObject result = JSONParser.parse(input);
+        JSONObject result = new JSONParser().parse(input);
 
 
         assertThat(result.keys()).containsOnly(
@@ -52,7 +52,7 @@ public class JSONParserTest extends BaseTest {
         input.pushMap(new JavaOnlyMap());
         input.pushNull();
 
-        JSONArray result = JSONParser.parse(input);
+        JSONArray result = new JSONParser().parse(input);
         assertThat(result.length()).isEqualTo(6);
         assertThat(result.get(0)).isEqualTo("Hello");
         assertThat(result.get(1)).isEqualTo(123);

lib/android/app/src/test/java/com/reactnativenavigation/react/NavigationModuleTest.java

@@ -0,0 +1,81 @@
+package com.reactnativenavigation.react;
+
+import com.facebook.react.ReactInstanceManager;
+import com.facebook.react.bridge.Promise;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReadableMap;
+import com.reactnativenavigation.BaseTest;
+import com.reactnativenavigation.NavigationActivity;
+import com.reactnativenavigation.parse.LayoutFactory;
+import com.reactnativenavigation.parse.LayoutNode;
+import com.reactnativenavigation.parse.parsers.JSONParser;
+import com.reactnativenavigation.viewcontrollers.ViewController;
+import com.reactnativenavigation.viewcontrollers.navigator.Navigator;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.junit.Test;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+public class NavigationModuleTest extends BaseTest {
+    private NavigationModule uut;
+    private Navigator navigator;
+    private JSONParser jsonParser;
+    private NavigationActivity activity;
+    private ReactApplicationContext reactApplicationContext;
+    private LayoutFactory layoutFactory;
+
+    @Override
+    public void beforeEach() {
+        jsonParser = mock(JSONParser.class);
+        navigator = mock(Navigator.class);
+        activity = mockActivity();
+        reactApplicationContext = mock(ReactApplicationContext.class);
+        layoutFactory = mock(LayoutFactory.class);
+
+        uut = spy(new NavigationModule(
+                reactApplicationContext,
+                mock(ReactInstanceManager.class),
+                jsonParser,
+                layoutFactory
+        ));
+    }
+
+    @Test
+    public void setRoot_delegatesToNavigator() throws JSONException {
+        when(reactApplicationContext.getCurrentActivity()).thenReturn(activity);
+        ReadableMap root = mock(ReadableMap.class);
+        when(jsonParser.parse(root)).thenReturn(rootJson());
+        ViewController rootViewController = mock(ViewController.class);
+        when(layoutFactory.create(any(LayoutNode.class))).thenReturn(rootViewController);
+
+        uut.setRoot("1", root, mock(Promise.class));
+        verify(navigator).setRoot(eq(rootViewController), any(), any());
+    }
+
+    private NavigationActivity mockActivity() {
+        NavigationActivity activity = mock(NavigationActivity.class);
+        when(activity.getNavigator()).thenReturn(navigator);
+        return activity;
+    }
+
+    private JSONObject rootJson() throws JSONException {
+        JSONObject root = new JSONObject();
+        root.put("root", componentJson());
+        return root;
+    }
+
+    private JSONObject componentJson() throws JSONException {
+        JSONObject component = new JSONObject();
+        component.put("id", "Component1");
+        component.put("type", "Component");
+        component.put("data", new JSONObject().put("name", "mockComponent"));
+        return component;
+    }
+}

package.json

@@ -155,13 +155,13 @@
         "binaryPath": "playground/android/app/build/outputs/apk/debug/app-debug.apk",
         "build": "cd playground/android && ./gradlew app:assembleDebug app:assembleAndroidTest -DtestBuildType=debug",
         "type": "android.emulator",
-        "name": "Nexus_5_API_25"
+        "name": "Nexus_5X_API_23"
       },
       "android.emu.release.locked": {
         "binaryPath": "playground/android/app/build/outputs/apk/release/app-release.apk",
         "build": "cd playground/android && ./gradlew app:assembleRelease app:assembleAndroidTest -DtestBuildType=release",
         "type": "android.emulator",
-        "name": "Nexus_5_API_25"
+        "name": "Nexus_5X_API_23"
       }
     }
   }