def test_intersection(c, d, ans):
from sets.verified_sets import IntSet
a = IntSet(c)
b = IntSet(d)
t = a.intersection(b)
assert (str(t) == ans and isinstance(t, IntSet)), \
f"Expected intersection {ans} and type IntSet"
def test_symmetric_difference(c, d, ans):
from sets.verified_sets import IntSet
a = IntSet(c)
b = IntSet(d)
t = a.symmetric_difference(b)
assert (str(t) == ans and isinstance(t, IntSet)), \
f"Expected symmetric difference {ans} and type IntSet"
def test_union(c, d, ans):
from sets.verified_sets import IntSet
a = IntSet(c)
b = IntSet(d)
t = a.union(b)
assert str(t) == ans and isinstance(
t, IntSet
), f"Expected union {ans} and type IntSet"
def test_difference(c, d, ans):
from sets.verified_sets import IntSet
a = IntSet(c)
b = IntSet(d)
t = a.difference(b)
assert str(t) == ans and isinstance(
t, IntSet
), f"Expected difference {ans} and type IntSet"
def test_copy():
from sets.verified_sets import IntSet
a = IntSet((9, 1, 10))
b = a.copy()
assert (str(b) == str(a) and isinstance(b, IntSet))
def test_difference_subclass():
from sets.verified_sets import IntSet
a = IntSet(())
with pytest.raises(TypeError):
a.difference(("a", "b"))
def test_intersection_subclass():
from sets.verified_sets import IntSet
a = IntSet(())
with pytest.raises(TypeError):
a.intersection(("a", "b"))
def test_symmetric_difference_subclass():
a = IntSet(())
with pytest.raises(TypeError):
a.symmetric_difference_update((1, "s"))
def test_symmetric_difference_update(c, d, ans):
a = IntSet(c)
b = IntSet(d)
a.symmetric_difference_update(b)
assert (str(a) == ans and isinstance(a, IntSet)), \
f"Expected set of {ans} but got {a}"
def test_update_subclass():
a = IntSet(())
with pytest.raises(TypeError):
a.update((1, "s"))
def test_add_subclass():
a = IntSet(())
with pytest.raises(TypeError):
a.add("s")
def test_add(s, a, ans):
c = IntSet(s)
c.add(a)
assert (str(c) == ans and isinstance(c, IntSet)), \
f"Expected set of {ans} but got {c}"