def test_alignment_block_same_length_as_matches(self):
record = PafRecord(mlen=5, blen=5)
actual = record.blast_identity()
expected = 1.0
assert actual == expected
def test_no_matches_returns_zero(self):
record = PafRecord(mlen=0, blen=5)
actual = record.blast_identity()
expected = 0.0
assert actual == expected
def test_alignment_block_longer_than_matches(self):
record = PafRecord(mlen=4, blen=5)
actual = record.blast_identity()
expected = 0.8
assert actual == expected
def test_unmapped_record_returns_zero(self):
record = PafRecord()
actual = record.blast_identity()
expected = 0.0
assert actual == expected