Use parameterization in most extractor tests

Part of what makes these tests hard to deal with (imo) is being
unable to easily run a specific config, or seeing exactly which one
failed (because you always see only the first failure).

I put the parameters as a method on ExtractorAsserts to
reduce the boiler-plate required in each test class.

I'll migrate the extension FlacExtractorTest in a follow-up CL

PiperOrigin-RevId: 307785380

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

@@ -22,7 +22,6 @@ import static com.google.android.exoplayer2.extractor.amr.AmrExtractor.frameSize
 import static com.google.common.truth.Truth.assertThat;
 import static junit.framework.Assert.fail;
 
-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;
@@ -31,16 +30,29 @@ import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import com.google.android.exoplayer2.testutil.FakeExtractorOutput;
 import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
+import java.util.List;
 import java.util.Random;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link AmrExtractor}. */
-@RunWith(AndroidJUnit4.class)
+// TODO(ibaker): Split this into two test classes: one parameterized, and one not.
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class AmrExtractorTest {
 
   private static final Random RANDOM = new Random(1234);
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void sniff_nonAmrSignature_returnFalse() throws IOException {
     AmrExtractor amrExtractor = setupAmrExtractorWithOutput();
@@ -172,25 +184,29 @@ public final class AmrExtractorTest {
   @Test
   public void extractingNarrowBandSamples() throws Exception {
     ExtractorAsserts.assertBehavior(
-        createAmrExtractorFactory(/* withSeeking= */ false), "amr/sample_nb.amr");
+        createAmrExtractorFactory(/* withSeeking= */ false), "amr/sample_nb.amr", assertionConfig);
   }
 
   @Test
   public void extractingWideBandSamples() throws Exception {
     ExtractorAsserts.assertBehavior(
-        createAmrExtractorFactory(/* withSeeking= */ false), "amr/sample_wb.amr");
+        createAmrExtractorFactory(/* withSeeking= */ false), "amr/sample_wb.amr", assertionConfig);
   }
 
   @Test
   public void extractingNarrowBandSamples_withSeeking() throws Exception {
     ExtractorAsserts.assertBehavior(
-        createAmrExtractorFactory(/* withSeeking= */ true), "amr/sample_nb_cbr.amr");
+        createAmrExtractorFactory(/* withSeeking= */ true),
+        "amr/sample_nb_cbr.amr",
+        assertionConfig);
   }
 
   @Test
   public void extractingWideBandSamples_withSeeking() throws Exception {
     ExtractorAsserts.assertBehavior(
-        createAmrExtractorFactory(/* withSeeking= */ true), "amr/sample_wb_cbr.amr");
+        createAmrExtractorFactory(/* withSeeking= */ true),
+        "amr/sample_wb_cbr.amr",
+        assertionConfig);
   }
 
   private byte[] newWideBandAmrFrameWithType(int frameType) {

library/extractor/src/test/java/com/google/android/exoplayer2/extractor/flac/FlacExtractorTest.java

@@ -16,20 +16,32 @@
 package com.google.android.exoplayer2.extractor.flac;
 
 import androidx.test.core.app.ApplicationProvider;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit tests for {@link FlacExtractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public class FlacExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void sample() throws Exception {
     ExtractorAsserts.assertBehavior(
         FlacExtractor::new,
         /* file= */ "flac/bear.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_flac");
   }
@@ -39,6 +51,7 @@ public class FlacExtractorTest {
     ExtractorAsserts.assertBehavior(
         FlacExtractor::new,
         /* file= */ "flac/bear_with_id3.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_with_id3_enabled_flac");
   }
@@ -48,6 +61,7 @@ public class FlacExtractorTest {
     ExtractorAsserts.assertBehavior(
         () -> new FlacExtractor(FlacExtractor.FLAG_DISABLE_ID3_METADATA),
         /* file= */ "flac/bear_with_id3.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_with_id3_disabled_flac");
   }
@@ -57,6 +71,7 @@ public class FlacExtractorTest {
     ExtractorAsserts.assertBehavior(
         FlacExtractor::new,
         /* file= */ "flac/bear_no_seek_table_no_num_samples.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_no_seek_table_no_num_samples_flac");
   }
@@ -66,6 +81,7 @@ public class FlacExtractorTest {
     ExtractorAsserts.assertBehavior(
         FlacExtractor::new,
         /* file= */ "flac/bear_with_vorbis_comments.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_with_vorbis_comments_flac");
   }
@@ -75,6 +91,7 @@ public class FlacExtractorTest {
     ExtractorAsserts.assertBehavior(
         FlacExtractor::new,
         /* file= */ "flac/bear_with_picture.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_with_picture_flac");
   }
@@ -84,6 +101,7 @@ public class FlacExtractorTest {
     ExtractorAsserts.assertBehavior(
         FlacExtractor::new,
         /* file= */ "flac/bear_one_metadata_block.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_one_metadata_block_flac");
   }
@@ -93,6 +111,7 @@ public class FlacExtractorTest {
     ExtractorAsserts.assertBehavior(
         FlacExtractor::new,
         /* file= */ "flac/bear_no_min_max_frame_size.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_no_min_max_frame_size_flac");
   }
@@ -102,6 +121,7 @@ public class FlacExtractorTest {
     ExtractorAsserts.assertBehavior(
         FlacExtractor::new,
         /* file= */ "flac/bear_no_num_samples.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_no_num_samples_flac");
   }
@@ -111,6 +131,7 @@ public class FlacExtractorTest {
     ExtractorAsserts.assertBehavior(
         FlacExtractor::new,
         /* file= */ "flac/bear_uncommon_sample_rate.flac",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "flac/bear_uncommon_sample_rate_flac");
   }

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

@@ -15,17 +15,28 @@
  */
 package com.google.android.exoplayer2.extractor.flv;
 
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link FlvExtractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class FlvExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void sample() throws Exception {
-    ExtractorAsserts.assertBehavior(FlvExtractor::new, "flv/sample.flv");
+    ExtractorAsserts.assertBehavior(FlvExtractor::new, "flv/sample.flv", assertionConfig);
   }
 }

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

@@ -15,44 +15,57 @@
  */
 package com.google.android.exoplayer2.extractor.mkv;
 
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Tests for {@link MatroskaExtractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class MatroskaExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void mkvSample() throws Exception {
-    ExtractorAsserts.assertBehavior(MatroskaExtractor::new, "mkv/sample.mkv");
+    ExtractorAsserts.assertBehavior(MatroskaExtractor::new, "mkv/sample.mkv", assertionConfig);
   }
 
   @Test
   public void mkvSample_withSubripSubtitles() throws Exception {
-    ExtractorAsserts.assertBehavior(MatroskaExtractor::new, "mkv/sample_with_srt.mkv");
+    ExtractorAsserts.assertBehavior(
+        MatroskaExtractor::new, "mkv/sample_with_srt.mkv", assertionConfig);
   }
 
   @Test
   public void mkvSample_withHtcRotationInfoInTrackName() throws Exception {
     ExtractorAsserts.assertBehavior(
-        MatroskaExtractor::new, "mkv/sample_with_htc_rotation_track_name.mkv");
+        MatroskaExtractor::new, "mkv/sample_with_htc_rotation_track_name.mkv", assertionConfig);
   }
 
   @Test
   public void mkvFullBlocksSample() throws Exception {
-    ExtractorAsserts.assertBehavior(MatroskaExtractor::new, "mkv/full_blocks.mkv");
+    ExtractorAsserts.assertBehavior(MatroskaExtractor::new, "mkv/full_blocks.mkv", assertionConfig);
   }
 
   @Test
   public void webmSubsampleEncryption() throws Exception {
     ExtractorAsserts.assertBehavior(
-        MatroskaExtractor::new, "mkv/subsample_encrypted_noaltref.webm");
+        MatroskaExtractor::new, "mkv/subsample_encrypted_noaltref.webm", assertionConfig);
   }
 
   @Test
   public void webmSubsampleEncryptionWithAltrefFrames() throws Exception {
-    ExtractorAsserts.assertBehavior(MatroskaExtractor::new, "mkv/subsample_encrypted_altref.webm");
+    ExtractorAsserts.assertBehavior(
+        MatroskaExtractor::new, "mkv/subsample_encrypted_altref.webm", assertionConfig);
   }
 }

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

@@ -16,36 +16,49 @@
 package com.google.android.exoplayer2.extractor.mp3;
 
 import androidx.test.core.app.ApplicationProvider;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link Mp3Extractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class Mp3ExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void mp3SampleWithXingHeader() throws Exception {
-    ExtractorAsserts.assertBehavior(Mp3Extractor::new, "mp3/bear-vbr-xing-header.mp3");
+    ExtractorAsserts.assertBehavior(
+        Mp3Extractor::new, "mp3/bear-vbr-xing-header.mp3", assertionConfig);
   }
 
   @Test
   public void mp3SampleWithCbrSeeker() throws Exception {
     ExtractorAsserts.assertBehavior(
-        Mp3Extractor::new, "mp3/bear-cbr-variable-frame-size-no-seek-table.mp3");
+        Mp3Extractor::new, "mp3/bear-cbr-variable-frame-size-no-seek-table.mp3", assertionConfig);
   }
 
   @Test
   public void mp3SampleWithIndexSeeker() throws Exception {
     ExtractorAsserts.assertBehavior(
         () -> new Mp3Extractor(Mp3Extractor.FLAG_ENABLE_INDEX_SEEKING),
-        "mp3/bear-vbr-no-seek-table.mp3");
+        "mp3/bear-vbr-no-seek-table.mp3",
+        assertionConfig);
   }
 
   @Test
   public void trimmedMp3Sample() throws Exception {
-    ExtractorAsserts.assertBehavior(Mp3Extractor::new, "mp3/play-trimmed.mp3");
+    ExtractorAsserts.assertBehavior(Mp3Extractor::new, "mp3/play-trimmed.mp3", assertionConfig);
   }
 
   @Test
@@ -53,6 +66,7 @@ public final class Mp3ExtractorTest {
     ExtractorAsserts.assertBehavior(
         Mp3Extractor::new,
         /* file= */ "mp3/bear-id3.mp3",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "mp3/bear-id3-enabled");
   }
@@ -62,6 +76,7 @@ public final class Mp3ExtractorTest {
     ExtractorAsserts.assertBehavior(
         () -> new Mp3Extractor(Mp3Extractor.FLAG_DISABLE_ID3_METADATA),
         /* file= */ "mp3/bear-id3.mp3",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "mp3/bear-id3-disabled");
   }

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

@@ -15,7 +15,6 @@
  */
 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;
@@ -25,21 +24,34 @@ import java.util.Collections;
 import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link FragmentedMp4Extractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class FragmentedMp4ExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void sample() throws Exception {
     ExtractorAsserts.assertBehavior(
-        getExtractorFactory(ImmutableList.of()), "mp4/sample_fragmented.mp4");
+        getExtractorFactory(ImmutableList.of()), "mp4/sample_fragmented.mp4", assertionConfig);
   }
 
   @Test
   public void sampleSeekable() throws Exception {
     ExtractorAsserts.assertBehavior(
-        getExtractorFactory(ImmutableList.of()), "mp4/sample_fragmented_seekable.mp4");
+        getExtractorFactory(ImmutableList.of()),
+        "mp4/sample_fragmented_seekable.mp4",
+        assertionConfig);
   }
 
   @Test
@@ -49,37 +61,40 @@ public final class FragmentedMp4ExtractorTest {
         getExtractorFactory(
             Collections.singletonList(
                 new Format.Builder().setSampleMimeType(MimeTypes.APPLICATION_CEA608).build()));
-    ExtractorAsserts.assertBehavior(extractorFactory, "mp4/sample_fragmented_sei.mp4");
+    ExtractorAsserts.assertBehavior(
+        extractorFactory, "mp4/sample_fragmented_sei.mp4", assertionConfig);
   }
 
   @Test
   public void sampleWithAc3Track() throws Exception {
     ExtractorAsserts.assertBehavior(
-        getExtractorFactory(ImmutableList.of()), "mp4/sample_ac3_fragmented.mp4");
+        getExtractorFactory(ImmutableList.of()), "mp4/sample_ac3_fragmented.mp4", assertionConfig);
   }
 
   @Test
   public void sampleWithAc4Track() throws Exception {
     ExtractorAsserts.assertBehavior(
-        getExtractorFactory(ImmutableList.of()), "mp4/sample_ac4_fragmented.mp4");
+        getExtractorFactory(ImmutableList.of()), "mp4/sample_ac4_fragmented.mp4", assertionConfig);
   }
 
   @Test
   public void sampleWithProtectedAc4Track() throws Exception {
     ExtractorAsserts.assertBehavior(
-        getExtractorFactory(ImmutableList.of()), "mp4/sample_ac4_protected.mp4");
+        getExtractorFactory(ImmutableList.of()), "mp4/sample_ac4_protected.mp4", assertionConfig);
   }
 
   @Test
   public void sampleWithEac3Track() throws Exception {
     ExtractorAsserts.assertBehavior(
-        getExtractorFactory(ImmutableList.of()), "mp4/sample_eac3_fragmented.mp4");
+        getExtractorFactory(ImmutableList.of()), "mp4/sample_eac3_fragmented.mp4", assertionConfig);
   }
 
   @Test
   public void sampleWithEac3jocTrack() throws Exception {
     ExtractorAsserts.assertBehavior(
-        getExtractorFactory(ImmutableList.of()), "mp4/sample_eac3joc_fragmented.mp4");
+        getExtractorFactory(ImmutableList.of()),
+        "mp4/sample_eac3joc_fragmented.mp4",
+        assertionConfig);
   }
 
   private static ExtractorFactory getExtractorFactory(final List<Format> closedCaptionFormats) {

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

@@ -15,23 +15,35 @@
  */
 package com.google.android.exoplayer2.extractor.mp4;
 
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Tests for {@link Mp4Extractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class Mp4ExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void mp4Sample() throws Exception {
-    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample.mp4");
+    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample.mp4", assertionConfig);
   }
 
   @Test
   public void mp4SampleWithSlowMotionMetadata() throws Exception {
-    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_android_slow_motion.mp4");
+    ExtractorAsserts.assertBehavior(
+        Mp4Extractor::new, "mp4/sample_android_slow_motion.mp4", assertionConfig);
   }
 
   /**
@@ -40,26 +52,27 @@ public final class Mp4ExtractorTest {
    */
   @Test
   public void mp4SampleWithMdatTooLong() throws Exception {
-    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_mdat_too_long.mp4");
+    ExtractorAsserts.assertBehavior(
+        Mp4Extractor::new, "mp4/sample_mdat_too_long.mp4", assertionConfig);
   }
 
   @Test
   public void mp4SampleWithAc3Track() throws Exception {
-    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_ac3.mp4");
+    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_ac3.mp4", assertionConfig);
   }
 
   @Test
   public void mp4SampleWithAc4Track() throws Exception {
-    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_ac4.mp4");
+    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_ac4.mp4", assertionConfig);
   }
 
   @Test
   public void mp4SampleWithEac3Track() throws Exception {
-    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_eac3.mp4");
+    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_eac3.mp4", assertionConfig);
   }
 
   @Test
   public void mp4SampleWithEac3jocTrack() throws Exception {
-    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_eac3joc.mp4");
+    ExtractorAsserts.assertBehavior(Mp4Extractor::new, "mp4/sample_eac3joc.mp4", assertionConfig);
   }
 }

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

@@ -18,38 +18,49 @@ package com.google.android.exoplayer2.extractor.ogg;
 import static com.google.android.exoplayer2.testutil.TestUtil.getByteArray;
 
 import androidx.test.core.app.ApplicationProvider;
-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;
 import java.io.IOException;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link OggExtractor}. */
-@RunWith(AndroidJUnit4.class)
+// TODO(ibaker): Split this into OggExtractorSniffTest and OggExtractorTest after parameterization,
+// otherwise we'll be running all the sniff tests multiple times.
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class OggExtractorTest {
 
-  private static final ExtractorFactory OGG_EXTRACTOR_FACTORY = OggExtractor::new;
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
 
   @Test
   public void opus() throws Exception {
-    ExtractorAsserts.assertBehavior(OGG_EXTRACTOR_FACTORY, "ogg/bear.opus");
+    ExtractorAsserts.assertBehavior(OggExtractor::new, "ogg/bear.opus", assertionConfig);
   }
 
   @Test
   public void flac() throws Exception {
-    ExtractorAsserts.assertBehavior(OGG_EXTRACTOR_FACTORY, "ogg/bear_flac.ogg");
+    ExtractorAsserts.assertBehavior(OggExtractor::new, "ogg/bear_flac.ogg", assertionConfig);
   }
 
   @Test
   public void flacNoSeektable() throws Exception {
-    ExtractorAsserts.assertBehavior(OGG_EXTRACTOR_FACTORY, "ogg/bear_flac_noseektable.ogg");
+    ExtractorAsserts.assertBehavior(
+        OggExtractor::new, "ogg/bear_flac_noseektable.ogg", assertionConfig);
   }
 
   @Test
   public void vorbis() throws Exception {
-    ExtractorAsserts.assertBehavior(OGG_EXTRACTOR_FACTORY, "ogg/bear_vorbis.ogg");
+    ExtractorAsserts.assertBehavior(OggExtractor::new, "ogg/bear_vorbis.ogg", assertionConfig);
   }
 
   @Test
@@ -97,6 +108,6 @@ public final class OggExtractorTest {
             .setSimulateUnknownLength(true)
             .setSimulatePartialReads(true)
             .build();
-    ExtractorAsserts.assertSniff(OGG_EXTRACTOR_FACTORY.create(), input, expectedResult);
+    ExtractorAsserts.assertSniff(new OggExtractor(), input, expectedResult);
   }
 }

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

@@ -15,17 +15,26 @@
  */
 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 java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
 
 /** Tests for {@link RawCcExtractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class RawCcExtractorTest {
 
+  @ParameterizedRobolectricTestRunner.Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @ParameterizedRobolectricTestRunner.Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void rawCcSample() throws Exception {
     Format format =
@@ -34,6 +43,7 @@ public final class RawCcExtractorTest {
             .setCodecs("cea608")
             .setAccessibilityChannel(1)
             .build();
-    ExtractorAsserts.assertBehavior(() -> new RawCcExtractor(format), "rawcc/sample.rawcc");
+    ExtractorAsserts.assertBehavior(
+        () -> new RawCcExtractor(format), "rawcc/sample.rawcc", assertionConfig);
   }
 }

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

@@ -15,27 +15,38 @@
  */
 package com.google.android.exoplayer2.extractor.ts;
 
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link Ac3Extractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class Ac3ExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void ac3Sample() throws Exception {
-    ExtractorAsserts.assertBehavior(Ac3Extractor::new, "ts/sample.ac3");
+    ExtractorAsserts.assertBehavior(Ac3Extractor::new, "ts/sample.ac3", assertionConfig);
   }
 
   @Test
   public void eAc3Sample() throws Exception {
-    ExtractorAsserts.assertBehavior(Ac3Extractor::new, "ts/sample.eac3");
+    ExtractorAsserts.assertBehavior(Ac3Extractor::new, "ts/sample.eac3", assertionConfig);
   }
 
   @Test
   public void eAc3jocSample() throws Exception {
-    ExtractorAsserts.assertBehavior(Ac3Extractor::new, "ts/sample_eac3joc.ec3");
+    ExtractorAsserts.assertBehavior(Ac3Extractor::new, "ts/sample_eac3joc.ec3", assertionConfig);
   }
 }

library/extractor/src/test/java/com/google/android/exoplayer2/extractor/ts/Ac4ExtractorTest.java

@@ -15,17 +15,28 @@
  */
 package com.google.android.exoplayer2.extractor.ts;
 
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link Ac4Extractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class Ac4ExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void ac4Sample() throws Exception {
-    ExtractorAsserts.assertBehavior(Ac4Extractor::new, "ts/sample.ac4");
+    ExtractorAsserts.assertBehavior(Ac4Extractor::new, "ts/sample.ac4", assertionConfig);
   }
 }

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

@@ -15,30 +15,42 @@
  */
 package com.google.android.exoplayer2.extractor.ts;
 
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link AdtsExtractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class AdtsExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void sample() throws Exception {
-    ExtractorAsserts.assertBehavior(AdtsExtractor::new, "ts/sample.adts");
+    ExtractorAsserts.assertBehavior(AdtsExtractor::new, "ts/sample.adts", assertionConfig);
   }
 
   @Test
   public void sample_with_id3() throws Exception {
-    ExtractorAsserts.assertBehavior(AdtsExtractor::new, "ts/sample_with_id3.adts");
+    ExtractorAsserts.assertBehavior(AdtsExtractor::new, "ts/sample_with_id3.adts", assertionConfig);
   }
 
   @Test
   public void sample_withSeeking() throws Exception {
     ExtractorAsserts.assertBehavior(
         () -> new AdtsExtractor(/* flags= */ AdtsExtractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING),
-        "ts/sample_cbs.adts");
+        "ts/sample_cbs.adts",
+        assertionConfig);
   }
 
   // https://github.com/google/ExoPlayer/issues/6700
@@ -46,6 +58,7 @@ public final class AdtsExtractorTest {
   public void sample_withSeekingAndTruncatedFile() throws Exception {
     ExtractorAsserts.assertBehavior(
         () -> new AdtsExtractor(/* flags= */ AdtsExtractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING),
-        "ts/sample_cbs_truncated.adts");
+        "ts/sample_cbs_truncated.adts",
+        assertionConfig);
   }
 }

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

@@ -15,22 +15,34 @@
  */
 package com.google.android.exoplayer2.extractor.ts;
 
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link PsExtractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class PsExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void sampleWithH262AndMpegAudio() throws Exception {
-    ExtractorAsserts.assertBehavior(PsExtractor::new, "ts/sample_h262_mpeg_audio.ps");
+    ExtractorAsserts.assertBehavior(
+        PsExtractor::new, "ts/sample_h262_mpeg_audio.ps", assertionConfig);
   }
 
   @Test
   public void sampleWithAc3() throws Exception {
-    ExtractorAsserts.assertBehavior(PsExtractor::new, "ts/sample_ac3.ps");
+    ExtractorAsserts.assertBehavior(PsExtractor::new, "ts/sample_ac3.ps", assertionConfig);
   }
 }

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

@@ -21,7 +21,6 @@ import static com.google.common.truth.Truth.assertThat;
 import android.util.SparseArray;
 import androidx.annotation.Nullable;
 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;
@@ -37,34 +36,49 @@ import com.google.android.exoplayer2.testutil.FakeTrackOutput;
 import com.google.android.exoplayer2.testutil.TestUtil;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import com.google.android.exoplayer2.util.TimestampAdjuster;
+import java.util.List;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameter;
+import org.robolectric.ParameterizedRobolectricTestRunner.Parameters;
 
 /** Unit test for {@link TsExtractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class TsExtractorTest {
 
+  @Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void sampleWithH262AndMpegAudio() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_h262_mpeg_audio.ts");
+    ExtractorAsserts.assertBehavior(
+        TsExtractor::new, "ts/sample_h262_mpeg_audio.ts", assertionConfig);
   }
 
   @Test
   public void sampleWithH264AndMpegAudio() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_h264_mpeg_audio.ts");
+    ExtractorAsserts.assertBehavior(
+        TsExtractor::new, "ts/sample_h264_mpeg_audio.ts", assertionConfig);
   }
 
   @Test
   public void sampleWithH264NoAccessUnitDelimiters() throws Exception {
     ExtractorAsserts.assertBehavior(
         () -> new TsExtractor(FLAG_DETECT_ACCESS_UNITS),
-        "ts/sample_h264_no_access_unit_delimiters.ts");
+        "ts/sample_h264_no_access_unit_delimiters.ts",
+        assertionConfig);
   }
 
   @Test
   public void sampleWithH265() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_h265.ts");
+    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_h265.ts", assertionConfig);
   }
 
   @Test
@@ -72,7 +86,7 @@ public final class TsExtractorTest {
   // TODO(internal: b/153539929) Re-enable when ExtractorAsserts is less strict around repeated
   // formats and seeking.
   public void sampleWithScte35() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_scte35.ts");
+    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_scte35.ts", assertionConfig);
   }
 
   @Test
@@ -80,38 +94,41 @@ public final class TsExtractorTest {
   // TODO(internal: b/153539929) Re-enable when ExtractorAsserts is less strict around repeated
   // formats and seeking.
   public void sampleWithAit() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_ait.ts");
+    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_ait.ts", assertionConfig);
   }
 
   @Test
   public void sampleWithAc3() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_ac3.ts");
+    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_ac3.ts", assertionConfig);
   }
 
   @Test
   public void sampleWithAc4() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_ac4.ts");
+    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_ac4.ts", assertionConfig);
   }
 
   @Test
   public void sampleWithEac3() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_eac3.ts");
+    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_eac3.ts", assertionConfig);
   }
 
   @Test
   public void sampleWithEac3joc() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_eac3joc.ts");
+    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_eac3joc.ts", assertionConfig);
   }
 
   @Test
   public void sampleWithLatm() throws Exception {
-    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_latm.ts");
+    ExtractorAsserts.assertBehavior(TsExtractor::new, "ts/sample_latm.ts", assertionConfig);
   }
 
   @Test
   public void streamWithJunkData() throws Exception {
     ExtractorAsserts.assertBehavior(
-        TsExtractor::new, "ts/sample_with_junk", ApplicationProvider.getApplicationContext());
+        TsExtractor::new,
+        "ts/sample_with_junk",
+        assertionConfig,
+        ApplicationProvider.getApplicationContext());
   }
 
   @Test

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

@@ -16,18 +16,27 @@
 package com.google.android.exoplayer2.extractor.wav;
 
 import androidx.test.core.app.ApplicationProvider;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.testutil.ExtractorAsserts;
+import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.ParameterizedRobolectricTestRunner;
 
 /** Unit test for {@link WavExtractor}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(ParameterizedRobolectricTestRunner.class)
 public final class WavExtractorTest {
 
+  @ParameterizedRobolectricTestRunner.Parameters(name = "{0}")
+  public static List<Object[]> params() {
+    return ExtractorAsserts.configs();
+  }
+
+  @ParameterizedRobolectricTestRunner.Parameter(0)
+  public ExtractorAsserts.Config assertionConfig;
+
   @Test
   public void sample() throws Exception {
-    ExtractorAsserts.assertBehavior(WavExtractor::new, "wav/sample.wav");
+    ExtractorAsserts.assertBehavior(WavExtractor::new, "wav/sample.wav", assertionConfig);
   }
 
   @Test
@@ -35,12 +44,13 @@ public final class WavExtractorTest {
     ExtractorAsserts.assertBehavior(
         WavExtractor::new,
         "wav/sample_with_trailing_bytes.wav",
+        assertionConfig,
         ApplicationProvider.getApplicationContext(),
         /* dumpFilesPrefix= */ "wav/sample.wav");
   }
 
   @Test
   public void sample_imaAdpcm() throws Exception {
-    ExtractorAsserts.assertBehavior(WavExtractor::new, "wav/sample_ima_adpcm.wav");
+    ExtractorAsserts.assertBehavior(WavExtractor::new, "wav/sample_ima_adpcm.wav", assertionConfig);
   }
 }

testutils/src/main/java/com/google/android/exoplayer2/testutil/ExtractorAsserts.java

@@ -27,7 +27,10 @@ import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput.SimulatedIOException;
 import com.google.android.exoplayer2.util.Assertions;
+import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
 
 /**
  * Assertion methods for {@link Extractor}.
@@ -35,8 +38,60 @@ import java.io.IOException;
 public final class ExtractorAsserts {
 
   /**
-   * A factory for {@link Extractor} instances.
+   * Returns a list of arrays containing {@link Config} objects to exercise different extractor
+   * paths.
+   *
+   * <p>This is intended to be used from tests using {@code ParameterizedRobolectricTestRunner} or
+   * {@code org.junit.runners.Parameterized}.
    */
+  public static List<Object[]> configs() {
+    return Arrays.asList(
+        new Object[] {new Config(true, false, false, false)},
+        new Object[] {new Config(true, false, false, true)},
+        new Object[] {new Config(true, false, true, false)},
+        new Object[] {new Config(true, false, true, true)},
+        new Object[] {new Config(true, true, false, false)},
+        new Object[] {new Config(true, true, false, true)},
+        new Object[] {new Config(true, true, true, false)},
+        new Object[] {new Config(true, true, true, true)},
+        new Object[] {new Config(false, false, false, false)});
+  }
+
+  /** A config of different environments to simulate and extractor behaviour to test. */
+  public static class Config {
+
+    /**
+     * Whether to sniff the data by calling {@link Extractor#sniff(ExtractorInput)} prior to
+     * consuming it.
+     */
+    public final boolean sniffFirst;
+    /** Whether to simulate IO errors. */
+    public final boolean simulateIOErrors;
+    /** Whether to simulate unknown input length. */
+    public final boolean simulateUnknownLength;
+    /** Whether to simulate partial reads. */
+    public final boolean simulatePartialReads;
+
+    private Config(
+        boolean sniffFirst,
+        boolean simulateIOErrors,
+        boolean simulateUnknownLength,
+        boolean simulatePartialReads) {
+      this.sniffFirst = sniffFirst;
+      this.simulateIOErrors = simulateIOErrors;
+      this.simulateUnknownLength = simulateUnknownLength;
+      this.simulatePartialReads = simulatePartialReads;
+    }
+
+    @Override
+    public String toString() {
+      return Util.formatInvariant(
+          "sniff=%s,ioErr=%s,unknownLen=%s,partRead=%s",
+          sniffFirst, simulateIOErrors, simulateUnknownLength, simulatePartialReads);
+    }
+  }
+
+  /** A factory for {@link Extractor} instances. */
   public interface ExtractorFactory {
     Extractor create();
   }
@@ -66,8 +121,7 @@ public final class ExtractorAsserts {
   }
 
   /**
-   * Asserts that an extractor behaves correctly given valid input data. Can only be used from
+   * Asserts that an extractor behaves correctly given valid input data.
-   * Robolectric tests.
    *
    * <ul>
    *   <li>Calls {@link Extractor#seek(long, long)} and {@link Extractor#release()} without calling
@@ -135,6 +189,77 @@ public final class ExtractorAsserts {
     assertOutput(factory, dumpFilesPrefix, fileData, context);
   }
 
+  /**
+   * Asserts that an extractor consumes valid input data successfully under the conditions specified
+   * by {@code config}.
+   *
+   * <p>The output of the extractor is compared against prerecorded dump files whose names are
+   * derived from the {@code file} parameter.
+   *
+   * @param factory An {@link ExtractorFactory} which creates instances of the {@link Extractor}
+   *     class which is to be tested.
+   * @param file The path to the input sample.
+   * @param config Details on the environment to simulate and behaviours to assert.
+   * @throws IOException If reading from the input fails.
+   */
+  public static void assertBehavior(ExtractorFactory factory, String file, Config config)
+      throws IOException {
+    assertBehavior(factory, file, config, ApplicationProvider.getApplicationContext());
+  }
+
+  /**
+   * Asserts that an extractor consumes valid input data successfully successfully under the
+   * conditions specified by {@code config}.
+   *
+   * <p>The output of the extractor is compared against prerecorded dump files whose names are
+   * derived from the {@code file} parameter.
+   *
+   * @param factory An {@link ExtractorFactory} which creates instances of the {@link Extractor}
+   *     class which is to be tested.
+   * @param file The path to the input sample.
+   * @param config Details on the environment to simulate and behaviours to assert.
+   * @param context To be used to load the sample file.
+   * @throws IOException If reading from the input fails.
+   */
+  public static void assertBehavior(
+      ExtractorFactory factory, String file, Config config, Context context) throws IOException {
+    assertBehavior(factory, file, config, context, file);
+  }
+
+  /**
+   * Asserts that an extractor consumes valid input data successfully successfully under the
+   * conditions specified by {@code config}.
+   *
+   * <p>The output of the extractor is compared against prerecorded dump files.
+   *
+   * @param factory An {@link ExtractorFactory} which creates instances of the {@link Extractor}
+   *     class which is to be tested.
+   * @param file The path to the input sample.
+   * @param config Details on the environment to simulate and behaviours to assert.
+   * @param context To be used to load the sample file.
+   * @param dumpFilesPrefix The dump files prefix prepended to the dump files path.
+   * @throws IOException If reading from the input fails.
+   */
+  public static void assertBehavior(
+      ExtractorFactory factory, String file, Config config, Context context, String dumpFilesPrefix)
+      throws IOException {
+    // Check behavior prior to initialization.
+    Extractor extractor = factory.create();
+    extractor.seek(0, 0);
+    extractor.release();
+    // Assert output.
+    byte[] fileData = TestUtil.getByteArray(context, file);
+    assertOutput(
+        factory.create(),
+        dumpFilesPrefix,
+        fileData,
+        context,
+        config.sniffFirst,
+        config.simulateIOErrors,
+        config.simulateUnknownLength,
+        config.simulatePartialReads);
+  }
+
   /**
    * Calls {@link #assertOutput(Extractor, String, byte[], Context, boolean, boolean, boolean,
    * boolean)} with all possible combinations of "simulate" parameters with {@code sniffFirst} set
@@ -163,11 +288,11 @@ public final class ExtractorAsserts {
   }
 
   /**
-   * Asserts that {@code extractor} consumes {@code data} successfully and that its output for
+   * Asserts that an extractor consumes valid input data successfully under the specified
-   * various initial seek times and for a known and unknown length matches prerecorded dump files.
+   * conditions.
    *
    * @param extractor The {@link Extractor} to be tested.
-   * @param dumpFilesPrefix The dump files prefix appended to the dump files path.
+   * @param dumpFilesPrefix The dump files prefix prepended to the dump files path.
    * @param data Content of the input file.
    * @param context To be used to load the sample file.
    * @param sniffFirst Whether to sniff the data by calling {@link Extractor#sniff(ExtractorInput)}