def test_find_start_codons():
    'New test to test the function to find start codons'
    assert (DNA('ATGGTACATGCGA').find_start_codons() == [0, 7])
New test to test the function to find start codons
def test_find_start_codons():
    
    assert (DNA('ATGGTACATGCGA').find_start_codons() == [0, 7])