Use androidx.test and extensions.

This replaces the deprecated usages of RobolectricTestRunner and
RuntimeEnvironent and fully migrates the tests to androidx.

PiperOrigin-RevId: 238011667

constants.gradle

@@ -18,15 +18,12 @@ project.ext {
     minSdkVersion = 16
     targetSdkVersion = 28
     compileSdkVersion = 28
-    testSupportLibraryVersion = '0.5'
     dexmakerVersion = '1.2'
     mockitoVersion = '1.9.5'
-    junitVersion = '4.12'
+    robolectricVersion = '4.2'
-    truthVersion = '0.42'
-    robolectricVersion = '4.1'
     autoValueVersion = '1.6'
     checkerframeworkVersion = '2.5.0'
-    testRunnerVersion = '1.1.0-alpha3'
+    androidXTestVersion = '1.1.0'
     modulePrefix = ':'
     if (gradle.ext.has('exoplayerModulePrefix')) {
         modulePrefix += gradle.ext.exoplayerModulePrefix

extensions/cast/build.gradle

@@ -37,10 +37,6 @@ dependencies {
     implementation project(modulePrefix + 'library-ui')
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     compileOnly 'org.checkerframework:checker-compat-qual:' + checkerframeworkVersion
-    testImplementation project(modulePrefix + 'testutils')
-    testImplementation 'junit:junit:' + junitVersion
-    testImplementation 'org.mockito:mockito-core:' + mockitoVersion
-    testImplementation 'org.robolectric:robolectric:' + robolectricVersion
     testImplementation project(modulePrefix + 'testutils-robolectric')
 }
 

extensions/cast/src/test/java/com/google/android/exoplayer2/ext/cast/CastTimelineTrackerTest.java

@@ -15,6 +15,7 @@
  */
 package com.google.android.exoplayer2.ext.cast;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.testutil.TimelineAsserts;
 import com.google.android.exoplayer2.util.MimeTypes;
@@ -25,10 +26,9 @@ import java.util.ArrayList;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mockito;
-import org.robolectric.RobolectricTestRunner;
 
 /** Tests for {@link CastTimelineTracker}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public class CastTimelineTrackerTest {
 
   private static final long DURATION_1_MS = 1000;

extensions/cast/src/test/java/com/google/android/exoplayer2/ext/cast/MediaItemTest.java

@@ -18,6 +18,7 @@ package com.google.android.exoplayer2.ext.cast;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.net.Uri;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.util.MimeTypes;
 import java.util.Arrays;
@@ -26,10 +27,9 @@ import java.util.List;
 import java.util.UUID;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Test for {@link MediaItem}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public class MediaItemTest {
 
   @Test

extensions/cronet/src/test/java/com/google/android/exoplayer2/ext/cronet/ByteArrayUploadDataProviderTest.java

@@ -19,6 +19,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.Arrays;
@@ -28,10 +29,9 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
-import org.robolectric.RobolectricTestRunner;
 
 /** Tests for {@link ByteArrayUploadDataProvider}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class ByteArrayUploadDataProviderTest {
 
   private static final byte[] TEST_DATA = new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

extensions/cronet/src/test/java/com/google/android/exoplayer2/ext/cronet/CronetDataSourceTest.java

@@ -31,6 +31,7 @@ import static org.mockito.Mockito.when;
 import android.net.Uri;
 import android.os.ConditionVariable;
 import android.os.SystemClock;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.HttpDataSource;
@@ -62,10 +63,9 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
-import org.robolectric.RobolectricTestRunner;
 
 /** Tests for {@link CronetDataSource}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class CronetDataSourceTest {
 
   private static final int TEST_CONNECT_TIMEOUT_MS = 100;

extensions/ffmpeg/build.gradle

@@ -41,7 +41,6 @@ dependencies {
     implementation 'androidx.annotation:annotation:1.0.1'
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     testImplementation project(modulePrefix + 'testutils-robolectric')
-    testImplementation 'junit:junit:' + junitVersion
 }
 
 ext {

extensions/ffmpeg/src/test/java/com/google/android/exoplayer2/ext/ffmpeg/DefaultRenderersFactoryTest.java

@@ -15,14 +15,14 @@
  */
 package com.google.android.exoplayer2.ext.ffmpeg;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.testutil.DefaultRenderersFactoryAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link DefaultRenderersFactoryTest} with {@link FfmpegAudioRenderer}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class DefaultRenderersFactoryTest {
 
   @Test

extensions/flac/build.gradle

@@ -41,9 +41,8 @@ dependencies {
     implementation project(modulePrefix + 'library-core')
     implementation 'androidx.annotation:annotation:1.0.1'
     androidTestImplementation project(modulePrefix + 'testutils')
-    androidTestImplementation 'androidx.test:runner:' + testRunnerVersion
+    androidTestImplementation 'androidx.test:runner:' + androidXTestVersion
     testImplementation project(modulePrefix + 'testutils-robolectric')
-    testImplementation 'org.robolectric:robolectric:' + robolectricVersion
 }
 
 ext {

extensions/flac/src/androidTest/AndroidManifest.xml

@@ -19,6 +19,7 @@
     package="com.google.android.exoplayer2.ext.flac.test">
 
   <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+  <uses-sdk/>
 
   <application android:debuggable="true"
       android:allowBackup="false"

extensions/flac/src/androidTest/java/com/google/android/exoplayer2/ext/flac/FlacBinarySearchSeekerTest.java

@@ -16,22 +16,26 @@
 package com.google.android.exoplayer2.ext.flac;
 
 import static com.google.common.truth.Truth.assertThat;
+import static org.junit.Assert.fail;
 
-import android.test.InstrumentationTestCase;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import com.google.android.exoplayer2.testutil.TestUtil;
 import java.io.IOException;
+import org.junit.Before;
+import org.junit.runner.RunWith;
 
 /** Unit test for {@link FlacBinarySearchSeeker}. */
-public final class FlacBinarySearchSeekerTest extends InstrumentationTestCase {
+@RunWith(AndroidJUnit4.class)
+public final class FlacBinarySearchSeekerTest {
 
   private static final String NOSEEKTABLE_FLAC = "bear_no_seek.flac";
   private static final int DURATION_US = 2_741_000;
 
-  @Override
+  @Before
-  protected void setUp() throws Exception {
+  public void setUp() {
-    super.setUp();
     if (!FlacLibrary.isAvailable()) {
       fail("Flac library not available.");
     }
@@ -39,7 +43,8 @@ public final class FlacBinarySearchSeekerTest extends InstrumentationTestCase {
 
   public void testGetSeekMap_returnsSeekMapWithCorrectDuration()
       throws IOException, FlacDecoderException, InterruptedException {
-    byte[] data = TestUtil.getByteArray(getInstrumentation().getContext(), NOSEEKTABLE_FLAC);
+    byte[] data =
+        TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), NOSEEKTABLE_FLAC);
 
     FakeExtractorInput input = new FakeExtractorInput.Builder().setData(data).build();
     FlacDecoderJni decoderJni = new FlacDecoderJni();
@@ -57,7 +62,8 @@ public final class FlacBinarySearchSeekerTest extends InstrumentationTestCase {
 
   public void testSetSeekTargetUs_returnsSeekPending()
       throws IOException, FlacDecoderException, InterruptedException {
-    byte[] data = TestUtil.getByteArray(getInstrumentation().getContext(), NOSEEKTABLE_FLAC);
+    byte[] data =
+        TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), NOSEEKTABLE_FLAC);
 
     FakeExtractorInput input = new FakeExtractorInput.Builder().setData(data).build();
     FlacDecoderJni decoderJni = new FlacDecoderJni();

extensions/flac/src/androidTest/java/com/google/android/exoplayer2/ext/flac/FlacExtractorSeekTest.java

@@ -16,11 +16,13 @@
 package com.google.android.exoplayer2.ext.flac;
 
 import static com.google.common.truth.Truth.assertThat;
+import static org.junit.Assert.fail;
 
 import android.content.Context;
 import android.net.Uri;
 import androidx.annotation.Nullable;
-import android.test.InstrumentationTestCase;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.Extractor;
@@ -38,9 +40,12 @@ import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.util.List;
 import java.util.Random;
+import org.junit.Before;
+import org.junit.runner.RunWith;
 
 /** Seeking tests for {@link FlacExtractor} when the FLAC stream does not have a SEEKTABLE. */
-public final class FlacExtractorSeekTest extends InstrumentationTestCase {
+@RunWith(AndroidJUnit4.class)
+public final class FlacExtractorSeekTest {
 
   private static final String NO_SEEKTABLE_FLAC = "bear_no_seek.flac";
   private static final int DURATION_US = 2_741_000;
@@ -54,18 +59,18 @@ public final class FlacExtractorSeekTest extends InstrumentationTestCase {
   private PositionHolder positionHolder;
   private long totalInputLength;
 
-  @Override
+  @Before
-  protected void setUp() throws Exception {
+  public void setUp() throws Exception {
-    super.setUp();
     if (!FlacLibrary.isAvailable()) {
       fail("Flac library not available.");
     }
     expectedOutput = new FakeExtractorOutput();
-    extractAllSamplesFromFileToExpectedOutput(getInstrumentation().getContext(), NO_SEEKTABLE_FLAC);
+    extractAllSamplesFromFileToExpectedOutput(
+        ApplicationProvider.getApplicationContext(), NO_SEEKTABLE_FLAC);
     expectedTrackOutput = expectedOutput.trackOutputs.get(0);
 
     dataSource =
-        new DefaultDataSourceFactory(getInstrumentation().getContext(), "UserAgent")
+        new DefaultDataSourceFactory(ApplicationProvider.getApplicationContext(), "UserAgent")
             .createDataSource();
     totalInputLength = readInputLength();
     positionHolder = new PositionHolder();

extensions/flac/src/androidTest/java/com/google/android/exoplayer2/ext/flac/FlacExtractorTest.java

@@ -15,17 +15,20 @@
  */
 package com.google.android.exoplayer2.ext.flac;
 
-import android.test.InstrumentationTestCase;
+import static org.junit.Assert.fail;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import org.junit.Before;
+import org.junit.runner.RunWith;
 
-/**
+/** Unit test for {@link FlacExtractor}. */
- * Unit test for {@link FlacExtractor}.
+@RunWith(AndroidJUnit4.class)
- */
+public class FlacExtractorTest {
-public class FlacExtractorTest extends InstrumentationTestCase {
 
-  @Override
+  @Before
-  protected void setUp() throws Exception {
+  public void setUp() throws Exception {
-    super.setUp();
     if (!FlacLibrary.isAvailable()) {
       fail("Flac library not available.");
     }
@@ -33,11 +36,11 @@ public class FlacExtractorTest extends InstrumentationTestCase {
 
   public void testExtractFlacSample() throws Exception {
     ExtractorAsserts.assertBehavior(
-        FlacExtractor::new, "bear.flac", getInstrumentation().getContext());
+        FlacExtractor::new, "bear.flac", ApplicationProvider.getApplicationContext());
   }
 
   public void testExtractFlacSampleWithId3Header() throws Exception {
     ExtractorAsserts.assertBehavior(
-        FlacExtractor::new, "bear_with_id3.flac", getInstrumentation().getContext());
+        FlacExtractor::new, "bear_with_id3.flac", ApplicationProvider.getApplicationContext());
   }
 }

extensions/flac/src/androidTest/java/com/google/android/exoplayer2/ext/flac/FlacPlaybackTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.ext.flac;
 
-import static androidx.test.InstrumentationRegistry.getContext;
 import static org.junit.Assert.fail;
 
 import android.content.Context;
 import android.net.Uri;
 import android.os.Looper;
-import androidx.test.runner.AndroidJUnit4;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.ExoPlayerFactory;
@@ -56,7 +56,7 @@ public class FlacPlaybackTest {
 
   private void playUri(String uri) throws Exception {
     TestPlaybackRunnable testPlaybackRunnable =
-        new TestPlaybackRunnable(Uri.parse(uri), getContext());
+        new TestPlaybackRunnable(Uri.parse(uri), ApplicationProvider.getApplicationContext());
     Thread thread = new Thread(testPlaybackRunnable);
     thread.start();
     thread.join();

extensions/flac/src/test/java/com/google/android/exoplayer2/ext/flac/DefaultExtractorsFactoryTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.ext.flac;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.DefaultExtractorsFactory;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.amr.AmrExtractor;
@@ -35,10 +36,9 @@ import java.util.ArrayList;
 import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link DefaultExtractorsFactory}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class DefaultExtractorsFactoryTest {
 
   @Test

extensions/flac/src/test/java/com/google/android/exoplayer2/ext/flac/DefaultRenderersFactoryTest.java

@@ -15,14 +15,14 @@
  */
 package com.google.android.exoplayer2.ext.flac;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.testutil.DefaultRenderersFactoryAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link DefaultRenderersFactoryTest} with {@link LibflacAudioRenderer}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class DefaultRenderersFactoryTest {
 
   @Test

extensions/ima/build.gradle

@@ -35,10 +35,6 @@ dependencies {
     api 'com.google.ads.interactivemedia.v3:interactivemedia:3.10.6'
     implementation project(modulePrefix + 'library-core')
     implementation 'com.google.android.gms:play-services-ads:17.1.3'
-    testImplementation 'com.google.truth:truth:' + truthVersion
-    testImplementation 'junit:junit:' + junitVersion
-    testImplementation 'org.mockito:mockito-core:' + mockitoVersion
-    testImplementation 'org.robolectric:robolectric:' + robolectricVersion
     testImplementation project(modulePrefix + 'testutils-robolectric')
 }
 

extensions/ima/src/test/java/com/google/android/exoplayer2/ext/ima/ImaAdsLoaderTest.java

@@ -26,6 +26,8 @@ import androidx.annotation.Nullable;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.ads.interactivemedia.v3.api.Ad;
 import com.google.ads.interactivemedia.v3.api.AdDisplayContainer;
 import com.google.ads.interactivemedia.v3.api.AdEvent;
@@ -54,11 +56,9 @@ import org.junit.runner.RunWith;
 import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Test for {@link ImaAdsLoader}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public class ImaAdsLoaderTest {
 
   private static final long CONTENT_DURATION_US = 10 * C.MICROS_PER_SECOND;
@@ -95,8 +95,8 @@ public class ImaAdsLoaderTest {
             adDisplayContainer,
             fakeAdsRequest,
             fakeAdsLoader);
-    adViewGroup = new FrameLayout(RuntimeEnvironment.application);
+    adViewGroup = new FrameLayout(ApplicationProvider.getApplicationContext());
-    adOverlayView = new View(RuntimeEnvironment.application);
+    adOverlayView = new View(ApplicationProvider.getApplicationContext());
     adViewProvider =
         new AdsLoader.AdViewProvider() {
           @Override
@@ -237,7 +237,7 @@ public class ImaAdsLoaderTest {
     adsLoaderListener = new TestAdsLoaderListener(fakeExoPlayer, contentTimeline, adDurationsUs);
     when(adsManager.getAdCuePoints()).thenReturn(Arrays.asList(cuePoints));
     imaAdsLoader =
-        new ImaAdsLoader.Builder(RuntimeEnvironment.application)
+        new ImaAdsLoader.Builder(ApplicationProvider.getApplicationContext())
             .setImaFactory(testImaFactory)
             .setImaSdkSettings(imaSdkSettings)
             .buildForAdTag(TEST_URI);

extensions/opus/build.gradle

@@ -40,8 +40,8 @@ android {
 dependencies {
     implementation project(modulePrefix + 'library-core')
     testImplementation project(modulePrefix + 'testutils-robolectric')
-    testImplementation 'junit:junit:' + junitVersion
+    androidTestImplementation 'androidx.test:runner:' + androidXTestVersion
-    androidTestImplementation 'androidx.test:runner:' + testRunnerVersion
+    androidTestImplementation 'androidx.test.ext:junit:' + androidXTestVersion
 }
 
 ext {

extensions/opus/src/androidTest/AndroidManifest.xml

@@ -19,6 +19,7 @@
     package="com.google.android.exoplayer2.ext.opus.test">
 
   <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+  <uses-sdk/>
 
   <application android:debuggable="true"
       android:allowBackup="false"

extensions/opus/src/androidTest/java/com/google/android/exoplayer2/ext/opus/OpusPlaybackTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.ext.opus;
 
-import static androidx.test.InstrumentationRegistry.getContext;
 import static org.junit.Assert.fail;
 
 import android.content.Context;
 import android.net.Uri;
 import android.os.Looper;
-import androidx.test.runner.AndroidJUnit4;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.ExoPlayerFactory;
@@ -56,7 +56,7 @@ public class OpusPlaybackTest {
 
   private void playUri(String uri) throws Exception {
     TestPlaybackRunnable testPlaybackRunnable =
-        new TestPlaybackRunnable(Uri.parse(uri), getContext());
+        new TestPlaybackRunnable(Uri.parse(uri), ApplicationProvider.getApplicationContext());
     Thread thread = new Thread(testPlaybackRunnable);
     thread.start();
     thread.join();

extensions/opus/src/test/java/com/google/android/exoplayer2/ext/opus/DefaultRenderersFactoryTest.java

@@ -15,14 +15,14 @@
  */
 package com.google.android.exoplayer2.ext.opus;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.testutil.DefaultRenderersFactoryAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link DefaultRenderersFactoryTest} with {@link LibopusAudioRenderer}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class DefaultRenderersFactoryTest {
 
   @Test

extensions/rtmp/build.gradle

@@ -34,8 +34,7 @@ dependencies {
     implementation project(modulePrefix + 'library-core')
     implementation 'net.butterflytv.utils:rtmp-client:3.0.1'
     implementation 'androidx.annotation:annotation:1.0.1'
-    testImplementation 'junit:junit:' + junitVersion
+    testImplementation project(modulePrefix + 'testutils-robolectric')
-    testImplementation 'org.robolectric:robolectric:' + robolectricVersion
 }
 
 ext {

extensions/rtmp/src/test/java/com/google/android/exoplayer2/ext/rtmp/DefaultDataSourceTest.java

@@ -16,23 +16,25 @@
 package com.google.android.exoplayer2.ext.rtmp;
 
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.DefaultDataSource;
 import java.io.IOException;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Unit test for {@link DefaultDataSource} with RTMP URIs. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class DefaultDataSourceTest {
 
   @Test
   public void openRtmpDataSpec_instantiatesRtmpDataSourceViaReflection() throws IOException {
     DefaultDataSource dataSource =
         new DefaultDataSource(
-            RuntimeEnvironment.application, "userAgent", /* allowCrossProtocolRedirects= */ false);
+            ApplicationProvider.getApplicationContext(),
+            "userAgent",
+            /* allowCrossProtocolRedirects= */ false);
     DataSpec dataSpec = new DataSpec(Uri.parse("rtmp://test.com/stream"));
     try {
       dataSource.open(dataSpec);

extensions/vp9/build.gradle

@@ -41,9 +41,9 @@ dependencies {
     implementation project(modulePrefix + 'library-core')
     implementation 'androidx.annotation:annotation:1.0.1'
     testImplementation project(modulePrefix + 'testutils-robolectric')
-    testImplementation 'junit:junit:' + junitVersion
+    androidTestImplementation 'androidx.test:runner:' + androidXTestVersion
-    androidTestImplementation 'androidx.test:runner:' + testRunnerVersion
+    androidTestImplementation 'androidx.test.ext:junit:' + androidXTestVersion
-    androidTestImplementation 'com.google.truth:truth:' + truthVersion
+    androidTestImplementation 'androidx.test.ext:truth:' + androidXTestVersion
 }
 
 ext {

extensions/vp9/src/androidTest/AndroidManifest.xml

@@ -19,6 +19,7 @@
     package="com.google.android.exoplayer2.ext.vp9.test">
 
   <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+  <uses-sdk/>
 
   <application android:debuggable="true"
       android:allowBackup="false"

extensions/vp9/src/androidTest/java/com/google/android/exoplayer2/ext/vp9/VpxPlaybackTest.java

@@ -15,14 +15,14 @@
  */
 package com.google.android.exoplayer2.ext.vp9;
 
-import static androidx.test.InstrumentationRegistry.getContext;
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 
 import android.content.Context;
 import android.net.Uri;
 import android.os.Looper;
-import androidx.test.runner.AndroidJUnit4;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.ExoPlayerFactory;
@@ -89,7 +89,7 @@ public class VpxPlaybackTest {
 
   private void playUri(String uri) throws Exception {
     TestPlaybackRunnable testPlaybackRunnable =
-        new TestPlaybackRunnable(Uri.parse(uri), getContext());
+        new TestPlaybackRunnable(Uri.parse(uri), ApplicationProvider.getApplicationContext());
     Thread thread = new Thread(testPlaybackRunnable);
     thread.start();
     thread.join();

extensions/vp9/src/test/java/com/google/android/exoplayer2/ext/vp9/DefaultRenderersFactoryTest.java

@@ -15,14 +15,14 @@
  */
 package com.google.android.exoplayer2.ext.vp9;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.testutil.DefaultRenderersFactoryAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link DefaultRenderersFactoryTest} with {@link LibvpxVideoRenderer}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class DefaultRenderersFactoryTest {
 
   @Test

library/core/build.gradle

@@ -61,15 +61,17 @@ dependencies {
     implementation 'androidx.annotation:annotation:1.0.1'
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     compileOnly 'org.checkerframework:checker-compat-qual:' + checkerframeworkVersion
-    androidTestImplementation 'androidx.test:runner:' + testRunnerVersion
+    androidTestImplementation 'androidx.test:runner:' + androidXTestVersion
+    androidTestImplementation 'androidx.test.ext:junit:' + androidXTestVersion
+    androidTestImplementation 'androidx.test.ext:truth:' + androidXTestVersion
     androidTestImplementation 'com.google.auto.value:auto-value-annotations:' + autoValueVersion
     androidTestImplementation 'com.google.dexmaker:dexmaker:' + dexmakerVersion
     androidTestImplementation 'com.google.dexmaker:dexmaker-mockito:' + dexmakerVersion
-    androidTestImplementation 'com.google.truth:truth:' + truthVersion
     androidTestImplementation 'org.mockito:mockito-core:' + mockitoVersion
     androidTestAnnotationProcessor 'com.google.auto.value:auto-value:' + autoValueVersion
-    testImplementation 'com.google.truth:truth:' + truthVersion
+    testImplementation 'androidx.test:core:' + androidXTestVersion
-    testImplementation 'junit:junit:' + junitVersion
+    testImplementation 'androidx.test.ext:junit:' + androidXTestVersion
+    testImplementation 'androidx.test.ext:truth:' + androidXTestVersion
     testImplementation 'org.mockito:mockito-core:' + mockitoVersion
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
     testImplementation 'com.google.auto.value:auto-value-annotations:' + autoValueVersion

library/core/src/androidTest/AndroidManifest.xml

@@ -19,6 +19,7 @@
     package="com.google.android.exoplayer2.core.test">
 
   <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+  <uses-sdk/>
 
   <application android:debuggable="true"
       android:allowBackup="false"

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

@@ -29,7 +29,7 @@ import android.os.ParcelFileDescriptor;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.test.InstrumentationRegistry;
-import androidx.test.runner.AndroidJUnit4;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.testutil.TestUtil;
 import java.io.FileNotFoundException;

library/core/src/test/java/com/google/android/exoplayer2/CTest.java

@@ -19,14 +19,12 @@ import static com.google.common.truth.Truth.assertThat;
 
 import android.annotation.SuppressLint;
 import android.media.MediaCodec;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link C}. */
- * Unit test for {@link C}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public class CTest {
 
   @SuppressLint("InlinedApi")

library/core/src/test/java/com/google/android/exoplayer2/DefaultLoadControlTest.java

@@ -17,15 +17,15 @@ package com.google.android.exoplayer2;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.DefaultLoadControl.Builder;
 import com.google.android.exoplayer2.upstream.DefaultAllocator;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit tests for {@link DefaultLoadControl}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public class DefaultLoadControlTest {
 
   private static final float SPEED = 1f;

library/core/src/test/java/com/google/android/exoplayer2/DefaultMediaClockTest.java

@@ -22,6 +22,7 @@ import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoMoreInteractions;
 import static org.mockito.MockitoAnnotations.initMocks;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.DefaultMediaClock.PlaybackParameterListener;
 import com.google.android.exoplayer2.testutil.FakeClock;
 import com.google.android.exoplayer2.testutil.FakeMediaClockRenderer;
@@ -29,12 +30,9 @@ import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link DefaultMediaClock}. */
- * Unit test for {@link DefaultMediaClock}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public class DefaultMediaClockTest {
 
   private static final long TEST_POSITION_US = 123456789012345678L;

library/core/src/test/java/com/google/android/exoplayer2/ExoPlayerTest.java

@@ -22,6 +22,8 @@ import android.content.Context;
 import android.graphics.SurfaceTexture;
 import androidx.annotation.Nullable;
 import android.view.Surface;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.Player.DiscontinuityReason;
 import com.google.android.exoplayer2.Player.EventListener;
 import com.google.android.exoplayer2.Timeline.Window;
@@ -66,12 +68,10 @@ import java.util.concurrent.atomic.AtomicReference;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
 
 /** Unit test for {@link ExoPlayer}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 @Config(shadows = {RobolectricUtil.CustomLooper.class, RobolectricUtil.CustomMessageQueue.class})
 public final class ExoPlayerTest {
 
@@ -86,7 +86,7 @@ public final class ExoPlayerTest {
 
   @Before
   public void setUp() {
-    context = RuntimeEnvironment.application;
+    context = ApplicationProvider.getApplicationContext();
   }
 
   /**

library/core/src/test/java/com/google/android/exoplayer2/FormatTest.java

@@ -21,6 +21,7 @@ import static com.google.android.exoplayer2.util.MimeTypes.VIDEO_WEBM;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.os.Parcel;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.drm.DrmInitData;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.id3.TextInformationFrame;
@@ -32,12 +33,9 @@ import java.util.Collections;
 import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link Format}. */
- * Unit test for {@link Format}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class FormatTest {
 
   private static final List<byte[]> INIT_DATA;

library/core/src/test/java/com/google/android/exoplayer2/MediaPeriodQueueTest.java

@@ -20,6 +20,7 @@ import static org.junit.Assert.assertNull;
 import static org.mockito.Mockito.mock;
 
 import android.net.Uri;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.MediaSource.MediaPeriodId;
 import com.google.android.exoplayer2.source.SinglePeriodTimeline;
@@ -30,10 +31,9 @@ import com.google.android.exoplayer2.upstream.Allocator;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit tests for {@link MediaPeriodQueue}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class MediaPeriodQueueTest {
 
   private static final long CONTENT_DURATION_US = 30 * C.MICROS_PER_SECOND;

library/core/src/test/java/com/google/android/exoplayer2/TimelineTest.java

@@ -15,15 +15,15 @@
  */
 package com.google.android.exoplayer2;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.FakeTimeline;
 import com.google.android.exoplayer2.testutil.FakeTimeline.TimelineWindowDefinition;
 import com.google.android.exoplayer2.testutil.TimelineAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link Timeline}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public class TimelineTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/analytics/AnalyticsCollectorTest.java

@@ -21,6 +21,8 @@ import android.os.Handler;
 import android.os.SystemClock;
 import androidx.annotation.Nullable;
 import android.view.Surface;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.PlaybackParameters;
@@ -56,12 +58,10 @@ import java.util.Iterator;
 import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
 
 /** Integration test for {@link AnalyticsCollector}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 @Config(shadows = {RobolectricUtil.CustomLooper.class, RobolectricUtil.CustomMessageQueue.class})
 public final class AnalyticsCollectorTest {
 
@@ -727,7 +727,7 @@ public final class AnalyticsCollectorTest {
           .setRenderersFactory(renderersFactory)
           .setAnalyticsListener(listener)
           .setActionSchedule(actionSchedule)
-          .build(RuntimeEnvironment.application)
+          .build(ApplicationProvider.getApplicationContext())
           .start()
           .blockUntilActionScheduleFinished(TIMEOUT_MS)
           .blockUntilEnded(TIMEOUT_MS);

library/core/src/test/java/com/google/android/exoplayer2/audio/Ac3UtilTest.java

@@ -17,13 +17,13 @@ package com.google.android.exoplayer2.audio;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.util.Util;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit tests for {@link Ac3Util}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class Ac3UtilTest {
 
   private static final int TRUEHD_SYNCFRAME_SAMPLE_COUNT = 40;

library/core/src/test/java/com/google/android/exoplayer2/audio/AudioFocusManagerTest.java

@@ -24,20 +24,20 @@ import static org.junit.Assert.fail;
 import android.content.Context;
 import android.media.AudioFocusRequest;
 import android.media.AudioManager;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Player;
 import com.google.android.exoplayer2.util.Util;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 import org.robolectric.Shadows;
 import org.robolectric.annotation.Config;
 import org.robolectric.shadows.ShadowAudioManager;
 
 /** Unit tests for {@link AudioFocusManager}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public class AudioFocusManagerTest {
   private static final int NO_COMMAND_RECEIVED = ~PLAYER_COMMAND_WAIT_FOR_CALLBACK;
 
@@ -49,10 +49,12 @@ public class AudioFocusManagerTest {
   @Before
   public void setUp() {
     audioManager =
-        (AudioManager) RuntimeEnvironment.application.getSystemService(Context.AUDIO_SERVICE);
+        (AudioManager)
+            ApplicationProvider.getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
 
     testPlayerControl = new TestPlayerControl();
-    audioFocusManager = new AudioFocusManager(RuntimeEnvironment.application, testPlayerControl);
+    audioFocusManager =
+        new AudioFocusManager(ApplicationProvider.getApplicationContext(), testPlayerControl);
   }
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/audio/DefaultAudioSinkTest.java

@@ -19,6 +19,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.robolectric.annotation.Config.NEWEST_SDK;
 import static org.robolectric.annotation.Config.OLDEST_SDK;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.PlaybackParameters;
 import java.nio.ByteBuffer;
@@ -27,7 +28,6 @@ import java.util.Arrays;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 import org.robolectric.annotation.Config;
 
 /**
@@ -42,7 +42,7 @@ import org.robolectric.annotation.Config;
  * draining to the end of the stream. This could be worked around by having a test-only mode where
  * {@link DefaultAudioSink} automatically treats audio as consumed.
  */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class DefaultAudioSinkTest {
 
   private static final int CHANNEL_COUNT_MONO = 1;

library/core/src/test/java/com/google/android/exoplayer2/audio/SilenceSkippingAudioProcessorTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.audio;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.audio.AudioProcessor.UnhandledFormatException;
 import com.google.android.exoplayer2.util.Assertions;
@@ -26,10 +27,9 @@ import java.nio.ShortBuffer;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit tests for {@link SilenceSkippingAudioProcessor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class SilenceSkippingAudioProcessorTest {
 
   private static final int TEST_SIGNAL_SAMPLE_RATE_HZ = 1000;

library/core/src/test/java/com/google/android/exoplayer2/audio/SimpleDecoderAudioRendererTest.java

@@ -24,6 +24,7 @@ import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.RendererConfiguration;
@@ -39,13 +40,10 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
-import org.robolectric.RobolectricTestRunner;
 import org.robolectric.annotation.Config;
 
-/**
+/** Unit test for {@link SimpleDecoderAudioRenderer}. */
- * Unit test for {@link SimpleDecoderAudioRenderer}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public class SimpleDecoderAudioRendererTest {
 
   private static final Format FORMAT = Format.createSampleFormat(null, MimeTypes.AUDIO_RAW, 0);

library/core/src/test/java/com/google/android/exoplayer2/audio/SonicAudioProcessorTest.java

@@ -18,16 +18,14 @@ package com.google.android.exoplayer2.audio;
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link SonicAudioProcessor}. */
- * Unit test for {@link SonicAudioProcessor}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class SonicAudioProcessorTest {
 
   private SonicAudioProcessor sonicAudioProcessor;

library/core/src/test/java/com/google/android/exoplayer2/database/VersionTableTest.java

@@ -18,14 +18,14 @@ package com.google.android.exoplayer2.database;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.database.sqlite.SQLiteDatabase;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.TestUtil;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit tests for {@link VersionTable}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public class VersionTableTest {
 
   private static final int FEATURE_1 = 1;

library/core/src/test/java/com/google/android/exoplayer2/drm/ClearKeyUtilTest.java

@@ -17,16 +17,14 @@ package com.google.android.exoplayer2.drm;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.util.Util;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 import org.robolectric.annotation.Config;
 
-/**
+/** Unit test for {@link ClearKeyUtil}. */
- * Unit test for {@link ClearKeyUtil}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class ClearKeyUtilTest {
 
   private static final byte[] SINGLE_KEY_RESPONSE =

library/core/src/test/java/com/google/android/exoplayer2/drm/DrmInitDataTest.java

@@ -22,6 +22,7 @@ import static com.google.android.exoplayer2.util.MimeTypes.VIDEO_MP4;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.os.Parcel;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.drm.DrmInitData.SchemeData;
 import com.google.android.exoplayer2.testutil.TestUtil;
@@ -29,12 +30,9 @@ import java.util.ArrayList;
 import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link DrmInitData}. */
- * Unit test for {@link DrmInitData}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public class DrmInitDataTest {
 
   private static final SchemeData DATA_1 = new SchemeData(WIDEVINE_UUID, VIDEO_MP4,

library/core/src/test/java/com/google/android/exoplayer2/drm/OfflineLicenseHelperTest.java

@@ -21,6 +21,7 @@ import static org.mockito.Matchers.any;
 import static org.mockito.Mockito.when;
 
 import android.util.Pair;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.drm.DrmInitData.SchemeData;
 import com.google.android.exoplayer2.testutil.RobolectricUtil;
@@ -31,11 +32,10 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
-import org.robolectric.RobolectricTestRunner;
 import org.robolectric.annotation.Config;
 
 /** Tests {@link OfflineLicenseHelper}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 @Config(shadows = {RobolectricUtil.CustomLooper.class, RobolectricUtil.CustomMessageQueue.class})
 public class OfflineLicenseHelperTest {
 

library/core/src/test/java/com/google/android/exoplayer2/extractor/ConstantBitrateSeekMapTest.java

@@ -18,13 +18,13 @@ package com.google.android.exoplayer2.extractor;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link ConstantBitrateSeekMap}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class ConstantBitrateSeekMapTest {
 
   private ConstantBitrateSeekMap constantBitrateSeekMap;

library/core/src/test/java/com/google/android/exoplayer2/extractor/DefaultExtractorInputTest.java

@@ -22,6 +22,7 @@ import static java.util.Arrays.copyOfRange;
 import static org.junit.Assert.fail;
 
 import android.net.Uri;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.testutil.FakeDataSource;
 import com.google.android.exoplayer2.upstream.DataSpec;
@@ -30,12 +31,9 @@ import java.io.IOException;
 import java.util.Arrays;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Test for {@link DefaultExtractorInput}. */
- * Test for {@link DefaultExtractorInput}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public class DefaultExtractorInputTest {
 
   private static final String TEST_URI = "http://www.google.com";

library/core/src/test/java/com/google/android/exoplayer2/extractor/DefaultExtractorsFactoryTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.extractor;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.amr.AmrExtractor;
 import com.google.android.exoplayer2.extractor.flv.FlvExtractor;
 import com.google.android.exoplayer2.extractor.mkv.MatroskaExtractor;
@@ -33,10 +34,9 @@ import java.util.ArrayList;
 import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link DefaultExtractorsFactory}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class DefaultExtractorsFactoryTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ExtractorTest.java

@@ -17,15 +17,13 @@ package com.google.android.exoplayer2.extractor;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link Extractor}. */
- * Unit test for {@link Extractor}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class ExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/Id3PeekerTest.java

@@ -18,6 +18,7 @@ package com.google.android.exoplayer2.extractor;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.id3.ApicFrame;
 import com.google.android.exoplayer2.metadata.id3.CommentFrame;
@@ -26,10 +27,9 @@ import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import java.io.IOException;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link Id3Peeker}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class Id3PeekerTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/amr/AmrExtractorSeekTest.java

@@ -18,6 +18,8 @@ package com.google.android.exoplayer2.extractor.amr;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.testutil.FakeExtractorOutput;
 import com.google.android.exoplayer2.testutil.FakeTrackOutput;
@@ -30,11 +32,9 @@ import java.util.Random;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Unit test for {@link AmrExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class AmrExtractorSeekTest {
 
   private static final Random random = new Random(1234L);
@@ -51,7 +51,7 @@ public final class AmrExtractorSeekTest {
   @Before
   public void setUp() {
     dataSource =
-        new DefaultDataSourceFactory(RuntimeEnvironment.application, "UserAgent")
+        new DefaultDataSourceFactory(ApplicationProvider.getApplicationContext(), "UserAgent")
             .createDataSource();
   }
 
@@ -62,7 +62,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
 
@@ -82,7 +82,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
 
@@ -109,7 +109,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AmrExtractor extractor = createAmrExtractor();
@@ -136,7 +136,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AmrExtractor extractor = createAmrExtractor();
@@ -165,7 +165,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AmrExtractor extractor = createAmrExtractor();
@@ -194,7 +194,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AmrExtractor extractor = createAmrExtractor();
@@ -223,7 +223,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
 
@@ -243,7 +243,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
 
@@ -270,7 +270,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AmrExtractor extractor = createAmrExtractor();
@@ -297,7 +297,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AmrExtractor extractor = createAmrExtractor();
@@ -326,7 +326,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AmrExtractor extractor = createAmrExtractor();
@@ -355,7 +355,7 @@ public final class AmrExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAmrExtractor(), RuntimeEnvironment.application, fileName)
+                createAmrExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AmrExtractor extractor = createAmrExtractor();

library/core/src/test/java/com/google/android/exoplayer2/extractor/amr/AmrExtractorTest.java

@@ -23,6 +23,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static junit.framework.Assert.fail;
 
 import androidx.annotation.NonNull;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.PositionHolder;
@@ -34,10 +35,9 @@ import java.io.IOException;
 import java.util.Random;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link AmrExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class AmrExtractorTest {
 
   private static final Random RANDOM = new Random(1234);

library/core/src/test/java/com/google/android/exoplayer2/extractor/flv/FlvExtractorTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.extractor.flv;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link FlvExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class FlvExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/mkv/DefaultEbmlReaderTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.extractor.mkv;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import com.google.android.exoplayer2.testutil.TestUtil;
@@ -26,12 +27,9 @@ import java.util.Arrays;
 import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Tests {@link DefaultEbmlReader}. */
- * Tests {@link DefaultEbmlReader}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public class DefaultEbmlReaderTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/mkv/MatroskaExtractorTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.extractor.mkv;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Tests for {@link MatroskaExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class MatroskaExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/mkv/VarintReaderTest.java

@@ -20,6 +20,7 @@ import static com.google.android.exoplayer2.C.RESULT_MAX_LENGTH_EXCEEDED;
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
@@ -28,12 +29,9 @@ import java.io.EOFException;
 import java.io.IOException;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Tests for {@link VarintReader}. */
- * Tests for {@link VarintReader}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class VarintReaderTest {
 
   private static final byte MAX_BYTE = (byte) 0xFF;

library/core/src/test/java/com/google/android/exoplayer2/extractor/mp3/Mp3ExtractorTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.extractor.mp3;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link Mp3Extractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class Mp3ExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/mp3/XingSeekerTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.extractor.mp3;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.extractor.MpegAudioHeader;
 import com.google.android.exoplayer2.extractor.SeekMap.SeekPoints;
@@ -26,12 +27,9 @@ import com.google.android.exoplayer2.util.Util;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Tests for {@link XingSeeker}. */
- * Tests for {@link XingSeeker}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class XingSeekerTest {
 
   // Xing header/payload from http://storage.googleapis.com/exoplayer-test-media-0/play.mp3.

library/core/src/test/java/com/google/android/exoplayer2/extractor/mp4/AtomParsersTest.java

@@ -17,16 +17,14 @@ package com.google.android.exoplayer2.extractor.mp4;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import com.google.android.exoplayer2.util.Util;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Tests for {@link AtomParsers}. */
- * Tests for {@link AtomParsers}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class AtomParsersTest {
 
   private static final String ATOM_HEADER = "000000000000000000000000";

library/core/src/test/java/com/google/android/exoplayer2/extractor/mp4/FragmentedMp4ExtractorTest.java

@@ -15,6 +15,7 @@
  */
 package com.google.android.exoplayer2.extractor.mp4;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts.ExtractorFactory;
@@ -23,10 +24,9 @@ import java.util.Collections;
 import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link FragmentedMp4Extractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class FragmentedMp4ExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/mp4/MdtaMetadataEntryTest.java

@@ -18,12 +18,12 @@ package com.google.android.exoplayer2.extractor.mp4;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.os.Parcel;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Test for {@link MdtaMetadataEntry}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class MdtaMetadataEntryTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/mp4/Mp4ExtractorTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.extractor.mp4;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Tests for {@link Mp4Extractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class Mp4ExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/mp4/PsshAtomUtilTest.java

@@ -21,17 +21,15 @@ import static com.google.android.exoplayer2.extractor.mp4.Atom.parseFullAtomFlag
 import static com.google.android.exoplayer2.extractor.mp4.Atom.parseFullAtomVersion;
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import java.util.UUID;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Tests for {@link PsshAtomUtil}. */
- * Tests for {@link PsshAtomUtil}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class PsshAtomUtilTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ogg/DefaultOggSeekerTest.java

@@ -19,6 +19,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static com.google.common.truth.Truth.assertWithMessage;
 import static org.junit.Assert.fail;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import com.google.android.exoplayer2.util.ParsableByteArray;
@@ -26,10 +27,9 @@ import java.io.IOException;
 import java.util.Random;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link DefaultOggSeeker}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class DefaultOggSeekerTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ogg/DefaultOggSeekerUtilMethodsTest.java

@@ -18,6 +18,7 @@ package com.google.android.exoplayer2.extractor.ogg;
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import com.google.android.exoplayer2.testutil.OggTestData;
@@ -27,12 +28,9 @@ import java.io.IOException;
 import java.util.Random;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link DefaultOggSeeker} utility methods. */
- * Unit test for {@link DefaultOggSeeker} utility methods.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class DefaultOggSeekerUtilMethodsTest {
 
   private final Random random = new Random(0);

library/core/src/test/java/com/google/android/exoplayer2/extractor/ogg/OggExtractorTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.extractor.ogg;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts.ExtractorFactory;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
@@ -25,10 +26,9 @@ import com.google.android.exoplayer2.testutil.TestUtil;
 import java.io.IOException;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link OggExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class OggExtractorTest {
 
   private static final ExtractorFactory OGG_EXTRACTOR_FACTORY = OggExtractor::new;

library/core/src/test/java/com/google/android/exoplayer2/extractor/ogg/OggPacketTest.java

@@ -17,6 +17,8 @@ package com.google.android.exoplayer2.extractor.ogg;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import com.google.android.exoplayer2.testutil.OggTestData;
 import com.google.android.exoplayer2.testutil.TestUtil;
@@ -27,11 +29,9 @@ import java.util.Random;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Unit test for {@link OggPacket}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class OggPacketTest {
 
   private static final String TEST_FILE = "ogg/bear.opus";
@@ -233,7 +233,7 @@ public final class OggPacketTest {
 
   @Test
   public void testParseRealFile() throws IOException, InterruptedException {
-    byte[] data = TestUtil.getByteArray(RuntimeEnvironment.application, TEST_FILE);
+    byte[] data = TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), TEST_FILE);
     FakeExtractorInput input = new FakeExtractorInput.Builder().setData(data).build();
     int packetCounter = 0;
     while (readPacket(input)) {

library/core/src/test/java/com/google/android/exoplayer2/extractor/ogg/OggPageHeaderTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.extractor.ogg;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput.SimulatedIOException;
 import com.google.android.exoplayer2.testutil.OggTestData;
@@ -24,12 +25,9 @@ import com.google.android.exoplayer2.testutil.TestUtil;
 import java.io.IOException;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link OggPageHeader}. */
- * Unit test for {@link OggPageHeader}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class OggPageHeaderTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ogg/VorbisBitArrayTest.java

@@ -17,15 +17,13 @@ package com.google.android.exoplayer2.extractor.ogg;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.TestUtil;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link VorbisBitArray}. */
- * Unit test for {@link VorbisBitArray}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class VorbisBitArrayTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ogg/VorbisReaderTest.java

@@ -19,6 +19,7 @@ import static com.google.android.exoplayer2.extractor.ogg.VorbisReader.readBits;
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.extractor.ogg.VorbisReader.VorbisSetup;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
@@ -28,12 +29,9 @@ import com.google.android.exoplayer2.util.ParsableByteArray;
 import java.io.IOException;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link VorbisReader}. */
- * Unit test for {@link VorbisReader}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class VorbisReaderTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ogg/VorbisUtilTest.java

@@ -20,17 +20,15 @@ import static com.google.android.exoplayer2.extractor.ogg.VorbisUtil.verifyVorbi
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.testutil.OggTestData;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link VorbisUtil}. */
- * Unit test for {@link VorbisUtil}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class VorbisUtilTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/rawcc/RawCcExtractorTest.java

@@ -15,15 +15,15 @@
  */
 package com.google.android.exoplayer2.extractor.rawcc;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import com.google.android.exoplayer2.util.MimeTypes;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Tests for {@link RawCcExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class RawCcExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/Ac3ExtractorTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.extractor.ts;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link Ac3Extractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class Ac3ExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/AdtsExtractorSeekTest.java

@@ -18,6 +18,8 @@ package com.google.android.exoplayer2.extractor.ts;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.testutil.FakeExtractorOutput;
 import com.google.android.exoplayer2.testutil.FakeTrackOutput;
@@ -30,11 +32,9 @@ import java.util.Random;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Unit test for {@link AdtsExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class AdtsExtractorSeekTest {
 
   private static final Random random = new Random(1234L);
@@ -49,7 +49,7 @@ public final class AdtsExtractorSeekTest {
   @Before
   public void setUp() {
     dataSource =
-        new DefaultDataSourceFactory(RuntimeEnvironment.application, "UserAgent")
+        new DefaultDataSourceFactory(ApplicationProvider.getApplicationContext(), "UserAgent")
             .createDataSource();
   }
 
@@ -60,7 +60,7 @@ public final class AdtsExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAdtsExtractor(), RuntimeEnvironment.application, fileName)
+                createAdtsExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
 
@@ -80,7 +80,7 @@ public final class AdtsExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAdtsExtractor(), RuntimeEnvironment.application, fileName)
+                createAdtsExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
 
@@ -107,7 +107,7 @@ public final class AdtsExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAdtsExtractor(), RuntimeEnvironment.application, fileName)
+                createAdtsExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AdtsExtractor extractor = createAdtsExtractor();
@@ -134,7 +134,7 @@ public final class AdtsExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAdtsExtractor(), RuntimeEnvironment.application, fileName)
+                createAdtsExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AdtsExtractor extractor = createAdtsExtractor();
@@ -163,7 +163,7 @@ public final class AdtsExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAdtsExtractor(), RuntimeEnvironment.application, fileName)
+                createAdtsExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AdtsExtractor extractor = createAdtsExtractor();
@@ -192,7 +192,7 @@ public final class AdtsExtractorSeekTest {
     Uri fileUri = TestUtil.buildAssetUri(fileName);
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                createAdtsExtractor(), RuntimeEnvironment.application, fileName)
+                createAdtsExtractor(), ApplicationProvider.getApplicationContext(), fileName)
             .trackOutputs
             .get(0);
     AdtsExtractor extractor = createAdtsExtractor();

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/AdtsExtractorTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.extractor.ts;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link AdtsExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class AdtsExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/AdtsReaderTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.extractor.ts;
 
 import static com.google.android.exoplayer2.extractor.ts.TsPayloadReader.FLAG_DATA_ALIGNMENT_INDICATOR;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.extractor.ts.TsPayloadReader.TrackIdGenerator;
@@ -28,10 +29,9 @@ import java.util.Arrays;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Test for {@link AdtsReader}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public class AdtsReaderTest {
 
   public static final byte[] ID3_DATA_1 =

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/PsDurationReaderTest.java

@@ -17,6 +17,8 @@ package com.google.android.exoplayer2.extractor.ts;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
@@ -25,11 +27,9 @@ import java.io.IOException;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Unit test for {@link PsDurationReader}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class PsDurationReaderTest {
 
   private PsDurationReader tsDurationReader;
@@ -50,7 +50,8 @@ public final class PsDurationReaderTest {
   public void testReadDuration_returnsCorrectDuration() throws IOException, InterruptedException {
     FakeExtractorInput input =
         new FakeExtractorInput.Builder()
-            .setData(TestUtil.getByteArray(RuntimeEnvironment.application, "ts/sample.ps"))
+            .setData(
+                TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), "ts/sample.ps"))
             .build();
 
     int result = Extractor.RESULT_CONTINUE;
@@ -69,7 +70,8 @@ public final class PsDurationReaderTest {
       throws IOException, InterruptedException {
     FakeExtractorInput input =
         new FakeExtractorInput.Builder()
-            .setData(TestUtil.getByteArray(RuntimeEnvironment.application, "ts/sample.ps"))
+            .setData(
+                TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), "ts/sample.ps"))
             .build();
 
     input.setPosition(1234);

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/PsExtractorSeekTest.java

@@ -19,6 +19,8 @@ import static com.google.common.truth.Truth.assertThat;
 
 import android.content.Context;
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.Extractor;
@@ -39,11 +41,9 @@ import java.util.Random;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Seeking tests for {@link PsExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class PsExtractorSeekTest {
 
   private static final String PS_FILE_PATH = "ts/elephants_dream.mpg";
@@ -63,11 +63,12 @@ public final class PsExtractorSeekTest {
   public void setUp() throws IOException, InterruptedException {
     expectedOutput = new FakeExtractorOutput();
     positionHolder = new PositionHolder();
-    extractAllSamplesFromFileToExpectedOutput(RuntimeEnvironment.application, PS_FILE_PATH);
+    extractAllSamplesFromFileToExpectedOutput(
+        ApplicationProvider.getApplicationContext(), PS_FILE_PATH);
     expectedTrackOutput = expectedOutput.trackOutputs.get(VIDEO_TRACK_ID);
 
     dataSource =
-        new DefaultDataSourceFactory(RuntimeEnvironment.application, "UserAgent")
+        new DefaultDataSourceFactory(ApplicationProvider.getApplicationContext(), "UserAgent")
             .createDataSource();
     totalInputLength = readInputLength();
   }

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/PsExtractorTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.extractor.ts;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link PsExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class PsExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/SectionReaderTest.java

@@ -20,6 +20,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static java.util.Arrays.asList;
 import static java.util.Collections.singletonList;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.ExtractorOutput;
 import com.google.android.exoplayer2.testutil.FakeExtractorOutput;
 import com.google.android.exoplayer2.util.ParsableByteArray;
@@ -30,12 +31,9 @@ import java.util.List;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Test for {@link SectionReader}. */
- * Test for {@link SectionReader}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class SectionReaderTest {
 
   private byte[] packetPayload;

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/TsDurationReaderTest.java

@@ -17,6 +17,8 @@ package com.google.android.exoplayer2.extractor.ts;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
@@ -25,11 +27,9 @@ import java.io.IOException;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Unit test for {@link TsDurationReader}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class TsDurationReaderTest {
 
   private TsDurationReader tsDurationReader;
@@ -50,7 +50,9 @@ public final class TsDurationReaderTest {
   public void testReadDuration_returnsCorrectDuration() throws IOException, InterruptedException {
     FakeExtractorInput input =
         new FakeExtractorInput.Builder()
-            .setData(TestUtil.getByteArray(RuntimeEnvironment.application, "ts/bbb_2500ms.ts"))
+            .setData(
+                TestUtil.getByteArray(
+                    ApplicationProvider.getApplicationContext(), "ts/bbb_2500ms.ts"))
             .setSimulateIOErrors(false)
             .setSimulateUnknownLength(false)
             .setSimulatePartialReads(false)
@@ -73,7 +75,9 @@ public final class TsDurationReaderTest {
       throws IOException, InterruptedException {
     FakeExtractorInput input =
         new FakeExtractorInput.Builder()
-            .setData(TestUtil.getByteArray(RuntimeEnvironment.application, "ts/bbb_2500ms.ts"))
+            .setData(
+                TestUtil.getByteArray(
+                    ApplicationProvider.getApplicationContext(), "ts/bbb_2500ms.ts"))
             .setSimulateIOErrors(false)
             .setSimulateUnknownLength(false)
             .setSimulatePartialReads(false)

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/TsExtractorSeekTest.java

@@ -18,6 +18,8 @@ package com.google.android.exoplayer2.extractor.ts;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.extractor.PositionHolder;
@@ -34,11 +36,9 @@ import java.util.Random;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Seeking tests for {@link TsExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class TsExtractorSeekTest {
 
   private static final String TEST_FILE = "ts/bbb_2500ms.ts";
@@ -57,12 +57,12 @@ public final class TsExtractorSeekTest {
     positionHolder = new PositionHolder();
     expectedTrackOutput =
         TestUtil.extractAllSamplesFromFile(
-                new TsExtractor(), RuntimeEnvironment.application, TEST_FILE)
+                new TsExtractor(), ApplicationProvider.getApplicationContext(), TEST_FILE)
             .trackOutputs
             .get(AUDIO_TRACK_ID);
 
     dataSource =
-        new DefaultDataSourceFactory(RuntimeEnvironment.application, "UserAgent")
+        new DefaultDataSourceFactory(ApplicationProvider.getApplicationContext(), "UserAgent")
             .createDataSource();
   }
 

library/core/src/test/java/com/google/android/exoplayer2/extractor/ts/TsExtractorTest.java

@@ -18,6 +18,8 @@ package com.google.android.exoplayer2.extractor.ts;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.util.SparseArray;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.extractor.Extractor;
@@ -37,11 +39,9 @@ import java.io.ByteArrayOutputStream;
 import java.util.Random;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Unit test for {@link TsExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class TsExtractorTest {
 
   private static final int TS_PACKET_SIZE = 188;
@@ -55,7 +55,8 @@ public final class TsExtractorTest {
   @Test
   public void testStreamWithJunkData() throws Exception {
     Random random = new Random(0);
-    byte[] fileData = TestUtil.getByteArray(RuntimeEnvironment.application, "ts/sample.ts");
+    byte[] fileData =
+        TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), "ts/sample.ts");
     ByteArrayOutputStream out = new ByteArrayOutputStream(fileData.length * 2);
     int bytesLeft = fileData.length;
 
@@ -74,7 +75,7 @@ public final class TsExtractorTest {
     fileData = out.toByteArray();
 
     ExtractorAsserts.assertOutput(
-        TsExtractor::new, "ts/sample.ts", fileData, RuntimeEnvironment.application);
+        TsExtractor::new, "ts/sample.ts", fileData, ApplicationProvider.getApplicationContext());
   }
 
   @Test
@@ -84,7 +85,8 @@ public final class TsExtractorTest {
         new TsExtractor(TsExtractor.MODE_MULTI_PMT, new TimestampAdjuster(0), factory);
     FakeExtractorInput input =
         new FakeExtractorInput.Builder()
-            .setData(TestUtil.getByteArray(RuntimeEnvironment.application, "ts/sample.ts"))
+            .setData(
+                TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), "ts/sample.ts"))
             .setSimulateIOErrors(false)
             .setSimulateUnknownLength(false)
             .setSimulatePartialReads(false)
@@ -114,7 +116,9 @@ public final class TsExtractorTest {
         new TsExtractor(TsExtractor.MODE_MULTI_PMT, new TimestampAdjuster(0), factory);
     FakeExtractorInput input =
         new FakeExtractorInput.Builder()
-            .setData(TestUtil.getByteArray(RuntimeEnvironment.application, "ts/sample_with_sdt.ts"))
+            .setData(
+                TestUtil.getByteArray(
+                    ApplicationProvider.getApplicationContext(), "ts/sample_with_sdt.ts"))
             .setSimulateIOErrors(false)
             .setSimulateUnknownLength(false)
             .setSimulatePartialReads(false)

library/core/src/test/java/com/google/android/exoplayer2/extractor/wav/WavExtractorTest.java

@@ -15,13 +15,13 @@
  */
 package com.google.android.exoplayer2.extractor.wav;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Unit test for {@link WavExtractor}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class WavExtractorTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/emsg/EventMessageDecoderTest.java

@@ -17,17 +17,15 @@ package com.google.android.exoplayer2.metadata.emsg;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.MetadataInputBuffer;
 import java.nio.ByteBuffer;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Test for {@link EventMessageDecoder}. */
- * Test for {@link EventMessageDecoder}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class EventMessageDecoderTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/emsg/EventMessageEncoderTest.java

@@ -17,18 +17,16 @@ package com.google.android.exoplayer2.metadata.emsg;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.MetadataInputBuffer;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Unit test for {@link EventMessageEncoder}. */
- * Unit test for {@link EventMessageEncoder}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class EventMessageEncoderTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/emsg/EventMessageTest.java

@@ -18,14 +18,12 @@ package com.google.android.exoplayer2.metadata.emsg;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.os.Parcel;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Test for {@link EventMessage}. */
- * Test for {@link EventMessage}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class EventMessageTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/icy/IcyDecoderTest.java

@@ -17,13 +17,13 @@ package com.google.android.exoplayer2.metadata.icy;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.metadata.Metadata;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Test for {@link IcyDecoder}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class IcyDecoderTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/icy/IcyHeadersTest.java

@@ -18,12 +18,12 @@ package com.google.android.exoplayer2.metadata.icy;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.os.Parcel;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Test for {@link IcyHeaders}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class IcyHeadersTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/icy/IcyStreamInfoTest.java

@@ -18,12 +18,12 @@ package com.google.android.exoplayer2.metadata.icy;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.os.Parcel;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Test for {@link IcyInfo}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class IcyStreamInfoTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/id3/ChapterFrameTest.java

@@ -18,14 +18,12 @@ package com.google.android.exoplayer2.metadata.id3;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.os.Parcel;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Test for {@link ChapterFrame}. */
- * Test for {@link ChapterFrame}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class ChapterFrameTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/id3/ChapterTocFrameTest.java

@@ -18,14 +18,12 @@ package com.google.android.exoplayer2.metadata.id3;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.os.Parcel;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Test for {@link ChapterTocFrame}. */
- * Test for {@link ChapterTocFrame}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class ChapterTocFrameTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/id3/Id3DecoderTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.metadata.id3;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.util.Assertions;
@@ -24,12 +25,9 @@ import java.nio.charset.Charset;
 import java.util.Arrays;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Test for {@link Id3Decoder}. */
- * Test for {@link Id3Decoder}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class Id3DecoderTest {
 
   private static final byte[] TAG_HEADER = new byte[] {'I', 'D', '3', 4, 0, 0, 0, 0, 0, 0};

library/core/src/test/java/com/google/android/exoplayer2/metadata/id3/MlltFrameTest.java

@@ -18,12 +18,12 @@ package com.google.android.exoplayer2.metadata.id3;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.os.Parcel;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
 /** Test for {@link MlltFrame}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public final class MlltFrameTest {
 
   @Test

library/core/src/test/java/com/google/android/exoplayer2/metadata/scte35/SpliceInfoDecoderTest.java

@@ -18,6 +18,7 @@ package com.google.android.exoplayer2.metadata.scte35;
 import static com.google.android.exoplayer2.C.TIME_UNSET;
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.MetadataInputBuffer;
 import com.google.android.exoplayer2.util.TimestampAdjuster;
@@ -26,12 +27,9 @@ import java.util.List;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
 
-/**
+/** Test for {@link SpliceInfoDecoder}. */
- * Test for {@link SpliceInfoDecoder}.
+@RunWith(AndroidJUnit4.class)
- */
-@RunWith(RobolectricTestRunner.class)
 public final class SpliceInfoDecoderTest {
 
   private SpliceInfoDecoder decoder;

library/core/src/test/java/com/google/android/exoplayer2/offline/ActionFileTest.java

@@ -18,6 +18,8 @@ package com.google.android.exoplayer2.offline;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.TestUtil;
 import com.google.android.exoplayer2.util.Util;
 import java.io.DataOutputStream;
@@ -30,11 +32,9 @@ import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
 
 /** Unit tests for {@link ActionFile}. */
-@RunWith(RobolectricTestRunner.class)
+@RunWith(AndroidJUnit4.class)
 public class ActionFileTest {
 
   private File tempFile;
@@ -43,7 +43,7 @@ public class ActionFileTest {
 
   @Before
   public void setUp() throws Exception {
-    tempFile = Util.createTempFile(RuntimeEnvironment.application, "ExoPlayerTest");
+    tempFile = Util.createTempFile(ApplicationProvider.getApplicationContext(), "ExoPlayerTest");
     action1 =
         buildAction(
             DownloadAction.TYPE_PROGRESSIVE,