Move audio edit list with InAppMp4Muxer test to Robolectric

This test has no device dependency.

PiperOrigin-RevId: 787051409

Author: SheenaChhabra

libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerEndToEndTest.java

@@ -2145,33 +2145,6 @@ public void transmux_audioWithEditList_preservesDuration() throws Exception {
     }
   }
 
-  @Test
-  public void transmux_audioWithEditListUsingInAppMuxer_preservesDuration() throws Exception {
-    Context context = ApplicationProvider.getApplicationContext();
-    Transformer transformer =
-        new Transformer.Builder(context).setMuxerFactory(new InAppMp4Muxer.Factory()).build();
-    MediaItem mediaItem =
-        MediaItem.fromUri(Uri.parse("asset:///media/mp4/long_edit_list_audioonly.mp4"));
-
-    ExportTestResult exportTestResult =
-        new TransformerAndroidTestRunner.Builder(context, transformer)
-            .build()
-            .run(testId, mediaItem);
-
-    Mp4Extractor mp4Extractor = new Mp4Extractor(new DefaultSubtitleParserFactory());
-    FakeExtractorOutput fakeExtractorOutput =
-        TestUtil.extractAllSamplesFromFilePath(mp4Extractor, exportTestResult.filePath);
-    assertThat(fakeExtractorOutput.seekMap.getDurationUs()).isEqualTo(1_562_100);
-    assertThat(fakeExtractorOutput.numberOfTracks).isEqualTo(1);
-    FakeTrackOutput audioTrack = fakeExtractorOutput.trackOutputs.get(0);
-    int expectedSampleCount = 68;
-    audioTrack.assertSampleCount(expectedSampleCount);
-    assertThat(audioTrack.lastFormat.encoderDelay).isEqualTo(742);
-    assertThat(audioTrack.getSampleTimeUs(/* index= */ 0)).isEqualTo(0);
-    assertThat(audioTrack.getSampleTimeUs(/* index= */ expectedSampleCount - 1))
-        .isEqualTo(1_555_736);
-  }
-
   @Test
   public void transmux_videoWithEditList_trimsFirstIdrFrameDuration() throws Exception {
     Context context = ApplicationProvider.getApplicationContext();

libraries/transformer/src/test/java/androidx/media3/transformer/TransformerWithInAppMp4MuxerEndToEndTest.java

@@ -37,6 +37,7 @@
 import androidx.media3.muxer.Muxer;
 import androidx.media3.test.utils.DumpFileAsserts;
 import androidx.media3.test.utils.FakeExtractorOutput;
+import androidx.media3.test.utils.FakeTrackOutput;
 import androidx.media3.test.utils.TestTransformerBuilder;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
@@ -252,6 +253,30 @@ public void transmux_withSettingVideoDuration_writesCorrectVideoDuration() throw
     assertThat(fakeExtractorOutput.seekMap.getDurationUs()).isEqualTo(expectedDurationUs);
   }
 
+  @Test
+  public void transmux_audioWithEditList_preservesDuration() throws Exception {
+    Transformer transformer =
+        new TestTransformerBuilder(context).setMuxerFactory(new InAppMp4Muxer.Factory()).build();
+    MediaItem mediaItem =
+        MediaItem.fromUri(Uri.parse("asset:///media/mp4/long_edit_list_audioonly.mp4"));
+
+    transformer.start(mediaItem, outputPath);
+    TransformerTestRunner.runLooper(transformer);
+
+    Mp4Extractor mp4Extractor = new Mp4Extractor(new DefaultSubtitleParserFactory());
+    FakeExtractorOutput fakeExtractorOutput =
+        androidx.media3.test.utils.TestUtil.extractAllSamplesFromFilePath(mp4Extractor, outputPath);
+    assertThat(fakeExtractorOutput.seekMap.getDurationUs()).isEqualTo(1_562_100);
+    assertThat(fakeExtractorOutput.numberOfTracks).isEqualTo(1);
+    FakeTrackOutput audioTrack = fakeExtractorOutput.trackOutputs.get(0);
+    int expectedSampleCount = 68;
+    audioTrack.assertSampleCount(expectedSampleCount);
+    assertThat(audioTrack.lastFormat.encoderDelay).isEqualTo(742);
+    assertThat(audioTrack.getSampleTimeUs(/* index= */ 0)).isEqualTo(0);
+    assertThat(audioTrack.getSampleTimeUs(/* index= */ expectedSampleCount - 1))
+        .isEqualTo(1_555_736);
+  }
+
   /**
    * Returns specific {@linkplain Metadata.Entry metadata} from the media file.
    *