@Test
  public void testRetryDeleteNamedBlob() throws Exception {
    dataSourceFactory.setLocalDatacenter(localDatacenter);
    dataSourceFactory.triggerEmptyResultSetForLocalDataCenter(datacenters);
    checkErrorCode(() -> namedBlobDb.delete(account.getName(), container.getName(), "blobName"), RestServiceErrorCode.NotFound);
  }
Tests for {@link MySqlNamedBlobDb} that require a mocked data source.
ambry-named-mysql/src/test/java/com/github/ambry/named/MySqlNamedBlobDbTest.java