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from itertools import chain
import pytest
from snakeoil import containers
class TestInvertedContains:
def setup_method(self, method):
self.set = containers.InvertedContains(range(12))
def test_basic(self):
assert 7 not in self.set
assert -7 in self.set
with pytest.raises(TypeError):
iter(self.set)
class BasicSet(containers.SetMixin):
__slots__ = ("_data",)
def __init__(self, data):
self._data = set(data)
def __iter__(self):
return iter(self._data)
def __contains__(self, other):
return other in self._data
# def __str__(self):
# return 'BasicSet([%s])' % ', '.join((str(x) for x in self._data))
def __eq__(self, other):
if isinstance(other, BasicSet):
return self._data == other._data
elif isinstance(other, (set, frozenset)):
return self._data == other
return False
def __ne__(self, other):
return not self == other
class TestSetMethods:
def test_and(self):
c = BasicSet(range(100))
s = set(range(25, 75))
r = BasicSet(range(25, 75))
assert c & s == r
assert s & c == r._data
def test_xor(self):
c = BasicSet(range(100))
s = set(range(25, 75))
r = BasicSet(chain(range(25), range(75, 100)))
assert c ^ s == r
assert s ^ c == r._data
def test_or(self):
c = BasicSet(range(50))
s = set(range(50, 100))
r = BasicSet(range(100))
assert c | s == r
assert s | c == r._data
def test_add(self):
c = BasicSet(range(50))
s = set(range(50, 100))
r = BasicSet(range(100))
assert c + s == r
assert s + c == r._data
def test_sub(self):
c = BasicSet(range(100))
s = set(range(50, 150))
r1 = BasicSet(range(50))
r2 = set(range(100, 150))
assert c - s == r1
assert s - c == r2
class TestLimitedChangeSet:
def setup_method(self, method):
self.set = containers.LimitedChangeSet(range(12))
def test_validator(self):
def f(val):
assert isinstance(val, int)
return val
self.set = containers.LimitedChangeSet(range(12), key_validator=f)
self.set.add(13)
self.set.add(14)
self.set.remove(11)
assert 5 in self.set
with pytest.raises(AssertionError):
self.set.add("2")
with pytest.raises(AssertionError):
self.set.remove("2")
with pytest.raises(AssertionError):
self.set.__contains__("2")
def test_basic(self, changes=0):
# this should be a no-op
self.set.rollback(changes)
# and this is invalid
with pytest.raises(TypeError):
self.set.rollback(changes + 1)
assert 0 in self.set
assert 12 not in self.set
assert 12 == len(self.set)
assert sorted(list(self.set)) == list(range(12))
assert changes == self.set.changes_count()
with pytest.raises(TypeError):
self.set.rollback(-1)
def test_dummy_commit(self):
# this should be a no-op
self.set.commit()
# so this should should run just as before
self.test_basic()
def test_adding(self):
self.set.add(13)
assert 13 in self.set
assert 13 == len(self.set)
assert sorted(list(self.set)) == list(range(12)) + [13]
assert 1 == self.set.changes_count()
self.set.add(13)
with pytest.raises(containers.Unchangable):
self.set.remove(13)
def test_add_rollback(self):
self.set.add(13)
self.set.rollback(0)
# this should run just as before
self.test_basic()
def test_add_commit_remove_commit(self):
self.set.add(13)
self.set.commit()
# should look like right before commit
assert 13 == len(self.set)
assert sorted(list(self.set)) == list(range(12)) + [13]
assert 0 == self.set.changes_count()
# and remove...
self.set.remove(13)
# should be back to basic, but with 1 change
self.test_basic(1)
self.set.commit()
self.test_basic()
def test_removing(self):
self.set.remove(0)
assert 0 not in self.set
assert 11 == len(self.set)
assert sorted(list(self.set)) == list(range(1, 12))
assert 1 == self.set.changes_count()
with pytest.raises(containers.Unchangable):
self.set.add(0)
with pytest.raises(KeyError):
self.set.remove(0)
def test_remove_rollback(self):
self.set.remove(0)
self.set.rollback(0)
self.test_basic()
def test_remove_commit_add_commit(self):
self.set.remove(0)
self.set.commit()
assert 0 not in self.set
assert 11 == len(self.set)
assert sorted(list(self.set)) == list(range(1, 12))
assert 0 == self.set.changes_count()
self.set.add(0)
self.test_basic(1)
self.set.commit()
self.test_basic()
def test_longer_transaction(self):
self.set.add(12)
self.set.remove(7)
self.set.rollback(1)
self.set.add(-1)
self.set.commit()
assert sorted(list(self.set)) == list(range(-1, 13))
def test_str(self):
assert str(containers.LimitedChangeSet([7])) == "LimitedChangeSet([7])"
def test__eq__(self):
c = containers.LimitedChangeSet(range(99))
c.add(99)
assert c == containers.LimitedChangeSet(range(100))
assert containers.LimitedChangeSet(range(100)) == set(range(100))
assert containers.LimitedChangeSet([]) != object()
class TestLimitedChangeSetWithBlacklist:
def setup_method(self, method):
self.set = containers.LimitedChangeSet(range(12), [3, 13])
def test_basic(self):
assert 0 in self.set
assert 12 not in self.set
assert 12 == len(self.set)
assert sorted(list(self.set)) == list(range(12))
assert 0 == self.set.changes_count()
with pytest.raises(TypeError):
self.set.rollback(-1)
def test_adding_blacklisted(self):
with pytest.raises(containers.Unchangable):
self.set.add(13)
def test_removing_blacklisted(self):
with pytest.raises(containers.Unchangable):
self.set.remove(3)
class TestProtectedSet:
def setup_method(self, method):
self.set = containers.ProtectedSet(set(range(12)))
def test_contains(self):
assert 0 in self.set
assert 15 not in self.set
self.set.add(15)
assert 15 in self.set
def test_iter(self):
assert list(range(12)) == sorted(self.set)
self.set.add(5)
assert list(range(12)) == sorted(self.set)
self.set.add(12)
assert list(range(13)) == sorted(self.set)
def test_len(self):
assert 12 == len(self.set)
self.set.add(5)
self.set.add(13)
assert 13 == len(self.set)
class TestRefCountingSet:
kls = containers.RefCountingSet
def test_it(self):
c = self.kls((1, 2))
assert 1 in c
assert 2 in c
c.remove(1)
assert 1 not in c
with pytest.raises(KeyError):
c.remove(1)
c.add(2)
assert 2 in c
c.remove(2)
assert 2 in c
c.remove(2)
assert 2 not in c
c.add(3)
assert 3 in c
c.remove(3)
assert 3 not in c
c.discard(4)
c.discard(5)
c.discard(4)
c.add(4)
c.add(4)
assert 4 in c
c.discard(4)
assert 4 in c
c.discard(4)
assert 4 not in c
def test_init(self):
assert self.kls(range(5))[4] == 1
c = self.kls([1, 2, 3, 1])
assert c[2] == 1
assert c[1] == 2
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