def test_renaming_always_doesnt_overwrite():
    """If trying to rename a file that exists, should not create new file
    """
    input_files = [
        'Scrubs.s01e01.avi',
        'Scrubs - [01x01] - My First Day.avi']

    expected_files = [
        'Scrubs.s01e01.avi',
        'Scrubs - [01x01] - My First Day.avi']

    out_data = run_tvnamer(
        with_files = input_files,
        with_flags = ['--batch'])

    verify_out_data(out_data, expected_files)
If trying to rename a file that exists, should not create new file
    
tests/test_functional.py