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test(fixtures): add Java and Kotlin fixtures for Android app entrypoints
Co-Authored-By: Bill Spooner <b@twodoors.dev>
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‎fixtures/MainActivity.java‎

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package com.reactnativeglobalkeyevent;
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import com.facebook.react.ReactActivity;
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public class MainActivity extends ReactActivity {
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/**
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* Returns the name of the main component registered from JavaScript. This is used to schedule
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* rendering of the component.
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*/
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@Override
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protected String getMainComponentName() {
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return "ReactNativeGlobalKeyEvent";
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}
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}

‎fixtures/MainActivity.kt‎

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package com.reactnativeglobalkeyevent
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import android.os.Build
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import android.os.Bundle
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import com.facebook.react.ReactActivity
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import com.facebook.react.ReactActivityDelegate
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import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint.fabricEnabled
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import com.facebook.react.defaults.DefaultReactActivityDelegate
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import expo.modules.ReactActivityDelegateWrapper
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class MainActivity : ReactActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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// Set the theme to AppTheme BEFORE onCreate to support
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// coloring the background, status bar, and navigation bar.
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// This is required for expo-splash-screen.
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setTheme(R.style.AppTheme);
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super.onCreate(null)
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}
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/**
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* Returns the name of the main component registered from JavaScript. This is used to schedule
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* rendering of the component.
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*/
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override fun getMainComponentName(): String = "main"
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/**
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* Returns the instance of the [ReactActivityDelegate]. We use [DefaultReactActivityDelegate]
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* which allows you to enable New Architecture with a single boolean flags [fabricEnabled]
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*/
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override fun createReactActivityDelegate(): ReactActivityDelegate {
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return ReactActivityDelegateWrapper(
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this,
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BuildConfig.IS_NEW_ARCHITECTURE_ENABLED,
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object : DefaultReactActivityDelegate(
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this,
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mainComponentName,
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fabricEnabled
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){})
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}
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/**
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* Align the back button behavior with Android S
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* where moving root activities to background instead of finishing activities.
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* @see <a href="https://developer.android.com/reference/android/app/Activity#onBackPressed()">onBackPressed</a>
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*/
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override fun invokeDefaultOnBackPressed() {
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if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
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if (!moveTaskToBack(false)) {
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// For non-root activities, use the default implementation to finish them.
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super.invokeDefaultOnBackPressed()
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}
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return
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}
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// Use the default back button implementation on Android S
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// because it's doing more than [Activity.moveTaskToBack] in fact.
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super.invokeDefaultOnBackPressed()
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}
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}

‎fixtures/MainApplication.java‎

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package com.reactnativeglobalkeyevent;
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import android.app.Application;
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import android.content.Context;
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import com.facebook.react.PackageList;
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import com.facebook.react.ReactApplication;
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import com.facebook.react.ReactInstanceManager;
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import com.facebook.react.ReactNativeHost;
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import com.facebook.react.ReactPackage;
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import com.facebook.soloader.SoLoader;
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import java.lang.reflect.InvocationTargetException;
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import java.util.List;
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public class MainApplication extends Application implements ReactApplication {
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private final ReactNativeHost mReactNativeHost =
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new ReactNativeHost(this) {
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@Override
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public boolean getUseDeveloperSupport() {
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return BuildConfig.DEBUG;
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}
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@Override
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protected List<ReactPackage> getPackages() {
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@SuppressWarnings("UnnecessaryLocalVariable")
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List<ReactPackage> packages = new PackageList(this).getPackages();
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// Packages that cannot be autolinked yet can be added manually here, for example:
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// packages.add(new MyReactNativePackage());
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return packages;
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}
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@Override
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protected String getJSMainModuleName() {
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return "index";
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}
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};
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@Override
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public ReactNativeHost getReactNativeHost() {
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return mReactNativeHost;
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}
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@Override
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public void onCreate() {
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super.onCreate();
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SoLoader.init(this, /* native exopackage */ false);
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initializeFlipper(this, getReactNativeHost().getReactInstanceManager());
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}
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/**
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* Loads Flipper in React Native templates. Call this in the onCreate method with something like
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* initializeFlipper(this, getReactNativeHost().getReactInstanceManager());
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*
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* @param context
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* @param reactInstanceManager
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*/
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private static void initializeFlipper(
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Context context, ReactInstanceManager reactInstanceManager) {
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if (BuildConfig.DEBUG) {
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try {
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/*
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We use reflection here to pick up the class that initializes Flipper,
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since Flipper library is not available in release mode
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*/
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Class<?> aClass = Class.forName("com.reactnativeglobalkeyevent.ReactNativeFlipper");
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aClass
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.getMethod("initializeFlipper", Context.class, ReactInstanceManager.class)
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.invoke(null, context, reactInstanceManager);
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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} catch (NoSuchMethodException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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} catch (InvocationTargetException e) {
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e.printStackTrace();
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}
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}
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}
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}

‎fixtures/MainApplication.kt‎

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package com.reactnativeglobalkeyevent
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import android.app.Application
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import android.content.res.Configuration
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import com.facebook.react.PackageList
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import com.facebook.react.ReactApplication
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import com.facebook.react.ReactNativeHost
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import com.facebook.react.ReactPackage
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import com.facebook.react.ReactHost
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import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint.load
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import com.facebook.react.defaults.DefaultReactNativeHost
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import com.facebook.soloader.SoLoader
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import expo.modules.ApplicationLifecycleDispatcher
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import expo.modules.ReactNativeHostWrapper
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class MainApplication : Application(), ReactApplication {
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override val reactNativeHost: ReactNativeHost = ReactNativeHostWrapper(
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this,
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object : DefaultReactNativeHost(this) {
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override fun getPackages(): List<ReactPackage> {
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// Packages that cannot be autolinked yet can be added manually here, for example:
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// packages.add(new MyReactNativePackage());
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return PackageList(this).packages
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}
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override fun getJSMainModuleName(): String = ".expo/.virtual-metro-entry"
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override fun getUseDeveloperSupport(): Boolean = BuildConfig.DEBUG
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override val isNewArchEnabled: Boolean = BuildConfig.IS_NEW_ARCHITECTURE_ENABLED
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override val isHermesEnabled: Boolean = BuildConfig.IS_HERMES_ENABLED
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}
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)
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override val reactHost: ReactHost
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get() = ReactNativeHostWrapper.createReactHost(applicationContext, reactNativeHost)
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override fun onCreate() {
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super.onCreate()
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SoLoader.init(this, false)
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if (BuildConfig.IS_NEW_ARCHITECTURE_ENABLED) {
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// If you opted-in for the New Architecture, we load the native entry point for this app.
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load()
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}
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ApplicationLifecycleDispatcher.onApplicationCreate(this)
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}
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override fun onConfigurationChanged(newConfig: Configuration) {
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super.onConfigurationChanged(newConfig)
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ApplicationLifecycleDispatcher.onConfigurationChanged(this, newConfig)
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}
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}

‎fixtures/getFixtures.ts‎

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import path from "path";
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import fs from "fs";
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type FixtureFileName =
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| "AppDelegate.mm"
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| "app-build.gradle"
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| "build.gradle"
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| "Podfile"
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| "MainActivity.java"
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| "MainApplication.java"
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| "MainActivity.kt"
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| "MainApplication.kt";
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export function getFixture(
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name: "AppDelegate.mm" | "app-build.gradle" | "build.gradle" | "Podfile"
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name: FixtureFileName,
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): string {
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const filepath = path.join(__dirname, name);
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return fs.readFileSync(filepath, "utf8");

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