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Pass the filename directly to JNI for loading deferred component. (flutter/engine#23824)
When .so files are in the lib/ path in the APK, it can be dlopen-ed directly using just the filename. We don't need to search for the file. The interface has thus been changed to accept a single path instead of a search directory. Also instead of hardcoding the .so basename and assets directory, read them from FlutterApplicationInfo instead.
This commit is contained in:
Lau Ching Jun
GitHub
parent
3e24724755
commit
1181890b8e
@ -1110,21 +1110,19 @@ public class FlutterJNI {
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* @param loadingUnitId The loadingUnitId is assigned during compile time by gen_snapshot and is
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* automatically retrieved when loadLibrary() is called on a dart deferred library. This is
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* used to identify which Dart deferred library the resolved correspond to.
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* @param searchPaths An array of paths in which to look for valid dart shared libraries. This
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* supports paths within zipped apks as long as the apks are not compressed using the
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* `path/to/apk.apk!path/inside/apk/lib.so` format. Paths will be tried first to last and ends
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* when a library is sucessfully found. When the found library is invalid, no additional paths
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* will be attempted.
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* @param sharedLibraryName File name of the .so file to be loaded, or if the file is not already
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* in LD_LIBRARY_PATH, the full path to the file. The .so files in the lib/[abi] directory are
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* already in LD_LIBRARY_PATH and in this case you only need to pass the file name.
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*/
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@UiThread
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public void loadDartDeferredLibrary(int loadingUnitId, @NonNull String[] searchPaths) {
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public void loadDartDeferredLibrary(int loadingUnitId, @NonNull String sharedLibraryName) {
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ensureRunningOnMainThread();
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ensureAttachedToNative();
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nativeLoadDartDeferredLibrary(nativeShellHolderId, loadingUnitId, searchPaths);
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nativeLoadDartDeferredLibrary(nativeShellHolderId, loadingUnitId, sharedLibraryName);
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}
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private native void nativeLoadDartDeferredLibrary(
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long nativeShellHolderId, int loadingUnitId, @NonNull String[] searchPaths);
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long nativeShellHolderId, int loadingUnitId, @NonNull String sharedLibraryName);
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/**
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* Adds the specified AssetManager as an APKAssetResolver in the Flutter Engine's AssetManager.
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@ -22,10 +22,11 @@ import io.flutter.embedding.engine.systemchannels.DeferredComponentChannel;
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* This call retrieves a unique identifier called the loading unit id, which is assigned by
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* gen_snapshot during compilation. The loading unit id is passed down through the engine and
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* invokes installDeferredComponent. Once the feature module is downloaded, loadAssets and
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* loadDartLibrary should be invoked. loadDartLibrary should find shared library .so files for the
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* engine to open and pass the .so path to FlutterJNI.loadDartDeferredLibrary. loadAssets should
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* typically ensure the new assets are available to the engine's asset manager by passing an updated
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* Android AssetManager to the engine via FlutterJNI.updateAssetManager.
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* loadDartLibrary should be invoked. loadDartLibrary should pass the file name of the shared
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* library .so file to FlutterJNI.loadDartDeferredLibrary for the engine to dlopen, or if the file
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* is not in LD_LIBRARY_PATH, it should find the shared library .so file and pass the full path.
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* loadAssets should typically ensure the new assets are available to the engine's asset manager by
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* passing an updated Android AssetManager to the engine via FlutterJNI.updateAssetManager.
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*
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* <p>The loadAssets and loadDartLibrary methods are separated out because they may also be called
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* manually via platform channel messages. A full installDeferredComponent implementation should
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@ -182,14 +183,10 @@ public interface DeferredComponentManager {
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* Load the .so shared library file into the Dart VM.
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*
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* <p>When the download of a deferred component module completes, this method should be called to
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* find the path .so library file. The path(s) should then be passed to
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* FlutterJNI.loadDartDeferredLibrary to be dlopen-ed and loaded into the Dart VM.
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*
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* <p>Specifically, APKs distributed by Android's app bundle format may vary by device and API
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* number, so FlutterJNI's loadDartDeferredLibrary accepts a list of search paths with can include
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* paths within APKs that have not been unpacked using the
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* `path/to/apk.apk!path/inside/apk/lib.so` format. Each search path will be attempted in order
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* until a shared library is found. This allows for the developer to avoid unpacking the apk zip.
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* find the .so library file. The filenames, or path if it's not in LD_LIBRARY_PATH, should then
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* be passed to FlutterJNI.loadDartDeferredLibrary to be dlopen-ed and loaded into the Dart VM.
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* The .so files in the lib/[abi] directory are already in LD_LIBRARY_PATH and in this case you
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* only need to pass the file name.
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*
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* <p>Upon successful load of the Dart library, the Dart future from the originating loadLibary()
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* call completes and developers are able to use symbols and assets from the feature module.
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@ -8,7 +8,6 @@ import android.annotation.SuppressLint;
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import android.content.Context;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.content.res.AssetManager;
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import android.os.Build;
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import android.util.SparseArray;
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import android.util.SparseIntArray;
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import androidx.annotation.NonNull;
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@ -23,14 +22,13 @@ import com.google.android.play.core.splitinstall.model.SplitInstallErrorCode;
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import com.google.android.play.core.splitinstall.model.SplitInstallSessionStatus;
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import io.flutter.Log;
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import io.flutter.embedding.engine.FlutterJNI;
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import io.flutter.embedding.engine.loader.ApplicationInfoLoader;
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import io.flutter.embedding.engine.loader.FlutterApplicationInfo;
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import io.flutter.embedding.engine.systemchannels.DeferredComponentChannel;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import java.util.Queue;
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/**
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* Flutter default implementation of DeferredComponentManager that downloads deferred component
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@ -43,6 +41,7 @@ public class PlayStoreDeferredComponentManager implements DeferredComponentManag
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private @Nullable FlutterJNI flutterJNI;
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private @Nullable DeferredComponentChannel channel;
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private @NonNull Context context;
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private @NonNull FlutterApplicationInfo flutterApplicationInfo;
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// Each request to install a feature module gets a session ID. These maps associate
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// the session ID with the loading unit and module name that was requested.
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private @NonNull SparseArray<String> sessionIdToName;
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@ -191,6 +190,7 @@ public class PlayStoreDeferredComponentManager implements DeferredComponentManag
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@NonNull Context context, @Nullable FlutterJNI flutterJNI) {
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this.context = context;
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this.flutterJNI = flutterJNI;
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this.flutterApplicationInfo = ApplicationInfoLoader.load(context);
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splitInstallManager = SplitInstallManagerFactory.create(context);
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listener = new FeatureInstallStateUpdatedListener();
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splitInstallManager.registerListener(listener);
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@ -322,10 +322,7 @@ public class PlayStoreDeferredComponentManager implements DeferredComponentManag
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context = context.createPackageContext(context.getPackageName(), 0);
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AssetManager assetManager = context.getAssets();
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flutterJNI.updateJavaAssetManager(
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assetManager,
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// TODO(garyq): Made the "flutter_assets" directory dynamic based off of DartEntryPoint.
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"flutter_assets");
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flutterJNI.updateJavaAssetManager(assetManager, flutterApplicationInfo.flutterAssetsDir);
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} catch (NameNotFoundException e) {
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throw new RuntimeException(e);
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}
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@ -341,54 +338,10 @@ public class PlayStoreDeferredComponentManager implements DeferredComponentManag
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}
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// This matches/depends on dart's loading unit naming convention, which we use unchanged.
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String aotSharedLibraryName = "app.so-" + loadingUnitId + ".part.so";
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String aotSharedLibraryName =
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flutterApplicationInfo.aotSharedLibraryName + "-" + loadingUnitId + ".part.so";
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// Possible values: armeabi, armeabi-v7a, arm64-v8a, x86, x86_64, mips, mips64
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String abi;
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
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abi = Build.SUPPORTED_ABIS[0];
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} else {
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abi = Build.CPU_ABI;
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}
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String pathAbi = abi.replace("-", "_"); // abis are represented with underscores in paths.
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// TODO(garyq): Optimize this apk/file discovery process to use less i/o and be more
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// performant and robust.
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// Search directly in APKs first
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List<String> apkPaths = new ArrayList<>();
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// If not found in APKs, we check in extracted native libs for the lib directly.
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List<String> soPaths = new ArrayList<>();
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Queue<File> searchFiles = new LinkedList<>();
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searchFiles.add(context.getFilesDir());
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while (!searchFiles.isEmpty()) {
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File file = searchFiles.remove();
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if (file != null && file.isDirectory()) {
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for (File f : file.listFiles()) {
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searchFiles.add(f);
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}
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continue;
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}
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String name = file.getName();
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if (name.endsWith(".apk") && name.startsWith(moduleName) && name.contains(pathAbi)) {
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apkPaths.add(file.getAbsolutePath());
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continue;
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}
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if (name.equals(aotSharedLibraryName)) {
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soPaths.add(file.getAbsolutePath());
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}
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}
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List<String> searchPaths = new ArrayList<>();
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for (String path : apkPaths) {
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searchPaths.add(path + "!lib/" + abi + "/" + aotSharedLibraryName);
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}
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for (String path : soPaths) {
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searchPaths.add(path);
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}
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flutterJNI.loadDartDeferredLibrary(
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loadingUnitId, searchPaths.toArray(new String[apkPaths.size()]));
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flutterJNI.loadDartDeferredLibrary(loadingUnitId, aotSharedLibraryName);
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}
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public boolean uninstallDeferredComponent(int loadingUnitId, String moduleName) {
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@ -16,17 +16,17 @@ import org.json.JSONArray;
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import org.xmlpull.v1.XmlPullParserException;
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/** Loads application information given a Context. */
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final class ApplicationInfoLoader {
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public final class ApplicationInfoLoader {
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// XML Attribute keys supported in AndroidManifest.xml
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static final String PUBLIC_AOT_SHARED_LIBRARY_NAME =
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public static final String PUBLIC_AOT_SHARED_LIBRARY_NAME =
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FlutterLoader.class.getName() + '.' + FlutterLoader.AOT_SHARED_LIBRARY_NAME;
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static final String PUBLIC_VM_SNAPSHOT_DATA_KEY =
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public static final String PUBLIC_VM_SNAPSHOT_DATA_KEY =
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FlutterLoader.class.getName() + '.' + FlutterLoader.VM_SNAPSHOT_DATA_KEY;
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static final String PUBLIC_ISOLATE_SNAPSHOT_DATA_KEY =
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public static final String PUBLIC_ISOLATE_SNAPSHOT_DATA_KEY =
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FlutterLoader.class.getName() + '.' + FlutterLoader.ISOLATE_SNAPSHOT_DATA_KEY;
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static final String PUBLIC_FLUTTER_ASSETS_DIR_KEY =
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public static final String PUBLIC_FLUTTER_ASSETS_DIR_KEY =
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FlutterLoader.class.getName() + '.' + FlutterLoader.FLUTTER_ASSETS_DIR_KEY;
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static final String NETWORK_POLICY_METADATA_KEY = "io.flutter.network-policy";
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public static final String NETWORK_POLICY_METADATA_KEY = "io.flutter.network-policy";
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@NonNull
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private static ApplicationInfo getApplicationInfo(@NonNull Context applicationContext) {
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@ -11,13 +11,13 @@ public final class FlutterApplicationInfo {
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private static final String DEFAULT_ISOLATE_SNAPSHOT_DATA = "isolate_snapshot_data";
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private static final String DEFAULT_FLUTTER_ASSETS_DIR = "flutter_assets";
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final String aotSharedLibraryName;
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final String vmSnapshotData;
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final String isolateSnapshotData;
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final String flutterAssetsDir;
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final String domainNetworkPolicy;
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final String nativeLibraryDir;
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final boolean clearTextPermitted;
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public final String aotSharedLibraryName;
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public final String vmSnapshotData;
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public final String isolateSnapshotData;
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public final String flutterAssetsDir;
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public final String domainNetworkPolicy;
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public final String nativeLibraryDir;
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public final boolean clearTextPermitted;
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public FlutterApplicationInfo(
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String aotSharedLibraryName,
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@ -567,23 +567,19 @@ static void LoadDartDeferredLibrary(JNIEnv* env,
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jobject obj,
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jlong shell_holder,
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jint jLoadingUnitId,
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jobjectArray jSearchPaths) {
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jstring jSharedLibraryName) {
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// Convert java->c++
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intptr_t loading_unit_id = static_cast<intptr_t>(jLoadingUnitId);
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std::vector<std::string> search_paths =
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fml::jni::StringArrayToVector(env, jSearchPaths);
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std::string sharedLibraryName =
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fml::jni::JavaStringToString(env, jSharedLibraryName);
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// Use dlopen here to directly check if handle is nullptr before creating a
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// NativeLibrary.
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void* handle = nullptr;
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while (handle == nullptr && !search_paths.empty()) {
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std::string path = search_paths.back();
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handle = ::dlopen(path.c_str(), RTLD_NOW);
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search_paths.pop_back();
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}
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void* handle = ::dlopen(sharedLibraryName.c_str(), RTLD_NOW);
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if (handle == nullptr) {
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LoadLoadingUnitFailure(loading_unit_id,
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"No lib .so found for provided search paths.", true);
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"Shared library not found for the provided name.",
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true);
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return;
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}
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fml::RefPtr<fml::NativeLibrary> native_lib =
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@ -781,7 +777,7 @@ bool RegisterApi(JNIEnv* env) {
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},
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{
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.name = "nativeLoadDartDeferredLibrary",
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.signature = "(JI[Ljava/lang/String;)V",
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.signature = "(JILjava/lang/String;)V",
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.fnPtr = reinterpret_cast<void*>(&LoadDartDeferredLibrary),
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},
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{
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@ -5,17 +5,22 @@
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package io.flutter.embedding.engine.deferredcomponents;
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import static junit.framework.TestCase.assertEquals;
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import static junit.framework.TestCase.assertTrue;
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import static org.mockito.Mockito.any;
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import static org.mockito.Mockito.anyInt;
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import static org.mockito.Mockito.doReturn;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.spy;
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import static org.mockito.Mockito.when;
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import android.content.Context;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.content.res.AssetManager;
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import android.os.Bundle;
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import androidx.annotation.NonNull;
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import io.flutter.embedding.engine.FlutterJNI;
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import io.flutter.embedding.engine.loader.ApplicationInfoLoader;
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import java.io.File;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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@ -30,16 +35,17 @@ public class PlayStoreDeferredComponentManagerTest {
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public int loadDartDeferredLibraryCalled = 0;
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public int updateAssetManagerCalled = 0;
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public int deferredComponentInstallFailureCalled = 0;
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public String[] searchPaths;
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public String sharedLibraryName;
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public int loadingUnitId;
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public AssetManager assetManager;
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public String assetBundlePath;
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public TestFlutterJNI() {}
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@Override
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public void loadDartDeferredLibrary(int loadingUnitId, @NonNull String[] searchPaths) {
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public void loadDartDeferredLibrary(int loadingUnitId, @NonNull String sharedLibraryName) {
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loadDartDeferredLibraryCalled++;
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this.searchPaths = searchPaths;
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this.sharedLibraryName = sharedLibraryName;
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this.loadingUnitId = loadingUnitId;
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}
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@ -49,6 +55,7 @@ public class PlayStoreDeferredComponentManagerTest {
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updateAssetManagerCalled++;
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this.loadingUnitId = loadingUnitId;
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this.assetManager = assetManager;
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this.assetBundlePath = assetBundlePath;
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}
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@Override
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@ -75,11 +82,10 @@ public class PlayStoreDeferredComponentManagerTest {
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@Test
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public void downloadCallsJNIFunctions() throws NameNotFoundException {
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TestFlutterJNI jni = new TestFlutterJNI();
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Context spyContext = spy(RuntimeEnvironment.systemContext);
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Context spyContext = spy(RuntimeEnvironment.application);
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doReturn(spyContext).when(spyContext).createPackageContext(any(), anyInt());
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doReturn(null).when(spyContext).getAssets();
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String soTestPath = "test/path/app.so-123.part.so";
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doReturn(new File(soTestPath)).when(spyContext).getFilesDir();
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String soTestPath = "libapp.so-123.part.so";
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TestPlayStoreDeferredComponentManager playStoreManager =
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new TestPlayStoreDeferredComponentManager(spyContext, jni);
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jni.setDeferredComponentManager(playStoreManager);
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@ -90,23 +96,32 @@ public class PlayStoreDeferredComponentManagerTest {
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assertEquals(jni.updateAssetManagerCalled, 1);
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assertEquals(jni.deferredComponentInstallFailureCalled, 0);
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assertTrue(jni.searchPaths[0].endsWith(soTestPath));
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assertEquals(jni.searchPaths.length, 1);
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assertEquals(jni.sharedLibraryName, soTestPath);
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assertEquals(jni.loadingUnitId, 123);
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assertEquals(jni.assetBundlePath, "flutter_assets");
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}
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@Test
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public void searchPathsAddsApks() throws NameNotFoundException {
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public void downloadCallsJNIFunctionsWithFilenameFromManifest() throws NameNotFoundException {
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TestFlutterJNI jni = new TestFlutterJNI();
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Context spyContext = spy(RuntimeEnvironment.systemContext);
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Context spyContext = spy(RuntimeEnvironment.application);
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doReturn(spyContext).when(spyContext).createPackageContext(any(), anyInt());
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doReturn(null).when(spyContext).getAssets();
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String apkTestPath = "test/path/TestModuleName_armeabi_v7a.apk";
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doReturn(new File(apkTestPath)).when(spyContext).getFilesDir();
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Bundle bundle = new Bundle();
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bundle.putString(ApplicationInfoLoader.PUBLIC_AOT_SHARED_LIBRARY_NAME, "custom_name.so");
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bundle.putString(ApplicationInfoLoader.PUBLIC_FLUTTER_ASSETS_DIR_KEY, "custom_assets");
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PackageManager packageManager = mock(PackageManager.class);
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ApplicationInfo applicationInfo = mock(ApplicationInfo.class);
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applicationInfo.metaData = bundle;
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when(packageManager.getApplicationInfo(any(String.class), any(int.class)))
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.thenReturn(applicationInfo);
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doReturn(packageManager).when(spyContext).getPackageManager();
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String soTestPath = "custom_name.so-123.part.so";
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TestPlayStoreDeferredComponentManager playStoreManager =
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new TestPlayStoreDeferredComponentManager(spyContext, jni);
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jni.setDeferredComponentManager(playStoreManager);
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assertEquals(jni.loadingUnitId, 0);
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playStoreManager.installDeferredComponent(123, "TestModuleName");
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@ -114,38 +129,15 @@ public class PlayStoreDeferredComponentManagerTest {
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assertEquals(jni.updateAssetManagerCalled, 1);
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assertEquals(jni.deferredComponentInstallFailureCalled, 0);
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assertTrue(jni.searchPaths[0].endsWith(apkTestPath + "!lib/armeabi-v7a/app.so-123.part.so"));
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assertEquals(jni.searchPaths.length, 1);
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assertEquals(jni.loadingUnitId, 123);
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}
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@Test
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public void invalidSearchPathsAreIgnored() throws NameNotFoundException {
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TestFlutterJNI jni = new TestFlutterJNI();
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Context spyContext = spy(RuntimeEnvironment.systemContext);
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doReturn(spyContext).when(spyContext).createPackageContext(any(), anyInt());
|
||||
doReturn(null).when(spyContext).getAssets();
|
||||
String apkTestPath = "test/path/invalidpath.apk";
|
||||
doReturn(new File(apkTestPath)).when(spyContext).getFilesDir();
|
||||
TestPlayStoreDeferredComponentManager playStoreManager =
|
||||
new TestPlayStoreDeferredComponentManager(spyContext, jni);
|
||||
jni.setDeferredComponentManager(playStoreManager);
|
||||
|
||||
assertEquals(jni.loadingUnitId, 0);
|
||||
|
||||
playStoreManager.installDeferredComponent(123, "TestModuleName");
|
||||
assertEquals(jni.loadDartDeferredLibraryCalled, 1);
|
||||
assertEquals(jni.updateAssetManagerCalled, 1);
|
||||
assertEquals(jni.deferredComponentInstallFailureCalled, 0);
|
||||
|
||||
assertEquals(jni.searchPaths.length, 0);
|
||||
assertEquals(jni.sharedLibraryName, soTestPath);
|
||||
assertEquals(jni.loadingUnitId, 123);
|
||||
assertEquals(jni.assetBundlePath, "custom_assets");
|
||||
}
|
||||
|
||||
@Test
|
||||
public void assetManagerUpdateInvoked() throws NameNotFoundException {
|
||||
TestFlutterJNI jni = new TestFlutterJNI();
|
||||
Context spyContext = spy(RuntimeEnvironment.systemContext);
|
||||
Context spyContext = spy(RuntimeEnvironment.application);
|
||||
doReturn(spyContext).when(spyContext).createPackageContext(any(), anyInt());
|
||||
AssetManager assetManager = spyContext.getAssets();
|
||||
String apkTestPath = "blah doesn't matter here";
|
||||
@ -167,7 +159,7 @@ public class PlayStoreDeferredComponentManagerTest {
|
||||
@Test
|
||||
public void stateGetterReturnsUnknowByDefault() throws NameNotFoundException {
|
||||
TestFlutterJNI jni = new TestFlutterJNI();
|
||||
Context spyContext = spy(RuntimeEnvironment.systemContext);
|
||||
Context spyContext = spy(RuntimeEnvironment.application);
|
||||
doReturn(spyContext).when(spyContext).createPackageContext(any(), anyInt());
|
||||
TestPlayStoreDeferredComponentManager playStoreManager =
|
||||
new TestPlayStoreDeferredComponentManager(spyContext, jni);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user