@Test
  public void testCompositeBlobDataChunksDelete() throws Exception {
    // Test when there is no limit on how many concurrent background delete operations
    testCompositeBlobDataChunksDeleteMaxDeleteOperation(0);
  }
Test that if a composite blob is deleted, the data chunks are eventually deleted. Also check the service IDs used
for delete operations.
ambry-router/src/test/java/com/github/ambry/router/NonBlockingRouterTest.java