code: def testReadSrcListCsvfileFailWhenDups(self):
      testfile = os.path.join(
          self.testdata_dir, "testfiles_smalllist_with_dups.csv"
      )
  
      with self.assertRaises(ValueError):
          atlasmaker_io.read_src_list_csvfile(
              testfile, handle_dups="fail"
          )
  
imports: import io
  import os
  import shutil
  import mock
  from absl.testing import absltest
  from PIL import Image
  from requests.exceptions import ConnectTimeout, ReadTimeout, InvalidURL
  import atlasmaker_io
label_desc: Use image node_id 7 for calling the AtlasmakerIOTests obj's underlying member method code with example usage: obj.testReadSrcListCsvfileFailWhenDups() without return types