required_test_files.append( input_file )
for output in test_dict[ 'outputs' ]:
fieldname, filename = output
+ # In rare cases, the filename may be None. If that is the case, skip that output definition.
if filename not in required_test_files:
required_test_files.append( filename )
# Make sure each specified file actually does exist in the test data path of the cloned repository.