def test_eq_():
fp1 = Fingerprint(33)
fp2 = Fingerprint(33)
assert fp1 == fp1
assert fp1 == fp2
assert not (fp1 != fp2)
fp2.touch(32)
assert not (fp1 == fp2)
assert fp1 != fp2
def test_equivalence():
fp1 = Fingerprint(33)
fp2 = Fingerprint(33)
assert fp1.equivalent(fp1)
assert fp1.equivalent(fp2)
assert fp2.equivalent(fp1)
fp1.touch(32)
fp2.touch(31)
fp2.touch(32)
assert fp2.equivalent(fp1)
assert not fp1.equivalent(fp2)
def test_serialization():
fp1 = Fingerprint(33)
fp1.touch(31)
fp1.touch(32)
s = Serializer()
fp1.serialize(s)
assert len(s.buffer) == fp1.get_length()
fp2 = Fingerprint(33)
assert fp1 != fp2
fp2.deserialize(Deserializer(s.buffer))
assert fp1 == fp2
def test_copy_creation():
for n in [32, 33]:
fp1 = Fingerprint(n)
indices = [0, 1, n - 2, n - 1]
for i in indices:
fp1.touch(i)
fp2 = Fingerprint(fp1)
for i in indices:
assert fp2.get(i) == True
# Make sure that we have a deep copy
for i in indices:
fp2.wipe(i)
for i in indices:
assert fp1.get(i) == True
def test_lt_():
fp1 = Fingerprint(32)
fp2 = Fingerprint(33)
fp3 = Fingerprint(33)
assert not (fp1 < fp1)
# with different lengths
assert fp1 < fp2
assert fp2 > fp1
fp1.touch(0)
assert fp1 < fp2
# with same lengths
assert not (fp2 < fp3)
fp3.touch(31)
assert fp2 < fp3
fp2.touch(32)
assert fp2 > fp3
def test_accessors():
fp = Fingerprint(65)
with pytest.raises(ValueError):
fp.get(-1)
fp.get(65)
for i in range(65):
assert fp.get(i) == False
for i in [0, 1, 31, 32, 63]:
fp.touch(i)
assert fp.get(i) == True
fp.wipe(i)
assert fp.get(i) == False
def test_creation():
with pytest.raises(ValueError):
fp = Fingerprint(-1)
fp = Fingerprint(0)
assert fp.length == 0
assert fp.blocks is None
fp = Fingerprint(32)
assert fp.length == 32
assert fp.blocks is None
fp = Fingerprint(33)
assert fp.length == 33
assert len(fp.blocks) == 1
fp = Fingerprint(64)
assert fp.length == 64
assert len(fp.blocks) == 1
fp = Fingerprint(65)
assert fp.length == 65
assert len(fp.blocks) == 2
def test_hash_():
fp1 = Fingerprint(33)
fp2 = Fingerprint(33)
assert fp1.__hash__() == fp2.__hash__()
fp2.touch(32)
assert fp1.__hash__() != fp2.__hash__()
def __init__(self, length):
self.fingerprint = Fingerprint(length)
self.values = [None] * length # property values