def test_known_mappings():

    with open('TestData/LocatorRes.tsv') as handle:
        cor_res = list(csv.DictReader(handle, delimiter='\t'))

    with open('TestData/testSeqs.fasta') as handle:
        test_seqs = list(fasta_reader(handle))

    for row, crow in zip(HIVTransTool.process_seqs(test_seqs, extract_regions=True), cor_res):
        for f in crow.keys():
            if row[f] is None:
                row[f] = ''
            yield eq_, str(row[f]), crow[f], f