Fix DefaultExtractorInputTest.largeSkip

PiperOrigin-RevId: 365992439

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

@@ -227,12 +227,16 @@ public class DefaultExtractorInputTest {
 
   @Test
   public void largeSkip() throws Exception {
-    DefaultExtractorInput input = createDefaultExtractorInput();
+    FakeDataSource testDataSource = buildLargeDataSource();
+    DefaultExtractorInput input = new DefaultExtractorInput(testDataSource, 0, C.LENGTH_UNSET);
     // Check that skipping the entire data source succeeds.
     int bytesToSkip = LARGE_TEST_DATA_LENGTH;
     while (bytesToSkip > 0) {
-      bytesToSkip -= input.skip(bytesToSkip);
+      int skipped = input.skip(bytesToSkip);
+      assertThat(skipped).isGreaterThan(0);
+      bytesToSkip -= skipped;
     }
+    assertThat(bytesToSkip).isEqualTo(0);
   }
 
   @Test
@@ -612,6 +616,13 @@ public class DefaultExtractorInputTest {
     return testDataSource;
   }
 
+  private static FakeDataSource buildLargeDataSource() throws Exception {
+    FakeDataSource testDataSource = new FakeDataSource();
+    testDataSource.getDataSet().newDefaultData().appendReadData(new byte[LARGE_TEST_DATA_LENGTH]);
+    testDataSource.open(new DataSpec(Uri.parse(TEST_URI)));
+    return testDataSource;
+  }
+
   private static FakeDataSource buildFailingDataSource() throws Exception {
     FakeDataSource testDataSource = new FakeDataSource();
     testDataSource.getDataSet().newDefaultData()