Introduced failing unit test for ContentDataSource

library/core/src/androidTest/AndroidManifest.xml

@@ -24,6 +24,9 @@
       android:allowBackup="false"
       tools:ignore="MissingApplicationIcon,HardcodedDebugMode">
     <uses-library android:name="android.test.runner"/>
+    <provider
+      android:authorities="exoplayer"
+      android:name="com.google.android.exoplayer2.upstream.TestDataProvider"/>
   </application>
 
   <instrumentation

library/core/src/androidTest/java/com/google/android/exoplayer2/upstream/AndroidDataSourceTest.java

+package com.google.android.exoplayer2.upstream;
+
+import android.content.Context;
+import android.net.Uri;
+import android.test.InstrumentationTestCase;
+
+public class AndroidDataSourceTest extends InstrumentationTestCase {
+
+  private static final long SAMPLE_MP4_BYTES = 101597;
+  private static final String SAMPLE_MP4_PATH = "/mp4/sample.mp4";
+
+  public void testAssetDataSource() throws Exception {
+    final Context context = getInstrumentation().getContext();
+    AssetDataSource dataSource = new AssetDataSource(context);
+    Uri assetUri = Uri.parse("file:///android_asset" + SAMPLE_MP4_PATH);
+    DataSpec dataSpec = new DataSpec(assetUri);
+    long sourceLengthBytes = dataSource.open(dataSpec);
+
+    assertEquals(SAMPLE_MP4_BYTES, sourceLengthBytes);
+  }
+
+  public void testContentDataSource() throws Exception {
+    Context context = getInstrumentation().getContext();
+    ContentDataSource dataSource = new ContentDataSource(context);
+    Uri contentUri = Uri.parse("content://exoplayer" + SAMPLE_MP4_PATH);
+    DataSpec dataSpec = new DataSpec(contentUri);
+    long sourceLengthBytes = dataSource.open(dataSpec);
+
+    assertEquals(SAMPLE_MP4_BYTES, sourceLengthBytes);
+  }
+}

library/core/src/androidTest/java/com/google/android/exoplayer2/upstream/TestDataProvider.java

+package com.google.android.exoplayer2.upstream;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.res.AssetFileDescriptor;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+import static junit.framework.Assert.assertNotNull;
+
+public class TestDataProvider extends ContentProvider {
+  @Override
+  public boolean onCreate() {
+    return true;
+  }
+
+  @Nullable
+  @Override
+  public Cursor query(@NonNull final Uri uri, @Nullable final String[] projection, @Nullable final String selection, @Nullable final String[] selectionArgs, @Nullable final String sortOrder) {
+    throw new UnsupportedOperationException("Not implemented");
+  }
+
+  @Nullable
+  @Override
+  public AssetFileDescriptor openAssetFile(@NonNull final Uri uri, @NonNull final String mode) throws FileNotFoundException {
+    try {
+      Context context = getContext();
+      assertNotNull(context);
+      return context.getAssets().openFd(uri.getPath().replaceFirst("/", ""));
+    } catch (IOException e) {
+      FileNotFoundException exception = new FileNotFoundException(e.getMessage());
+      exception.initCause(e);
+      throw exception;
+    }
+  }
+
+  @Nullable
+  @Override
+  public String getType(@NonNull final Uri uri) {
+    throw new UnsupportedOperationException("Not implemented");
+  }
+
+  @Nullable
+  @Override
+  public Uri insert(@NonNull final Uri uri, @Nullable final ContentValues values) {
+    throw new UnsupportedOperationException("Not implemented");
+  }
+
+  @Override
+  public int delete(@NonNull final Uri uri, @Nullable final String selection, @Nullable final String[] selectionArgs) {
+    throw new UnsupportedOperationException("Not implemented");
+  }
+
+  @Override
+  public int update(@NonNull final Uri uri, @Nullable final ContentValues values, @Nullable final String selection, @Nullable final String[] selectionArgs) {
+    throw new UnsupportedOperationException("Not implemented");
+  }
+}