def test_intersection_with_intersection(self):
a, b, c, d = Query(), Query(), Query(), Query()
self.check_both(a & b, c & d, Intersection(a, b, c, d))
def test_intersection_query_with_its_inversion(self):
q = Query()
self.check_both(q, ~q, ~Q())
def test_query_with_intersection(self):
a, b, c = Query(), Query(), Query()
self.check_both(a & b, c, Intersection(a, b, c))
def test_intersection_everything(self):
q = Query()
self.check_both(Q(), q, q)
def test_intersection_nothing(self):
self.check_both(~Q(), Query(), ~Q())
def test_query_with_union(self):
a, b, c = Query(), Query(), Query()
self.check_both(a | b, c, Union(a, b, c))
def test_union_with_union(self):
a, b, c, d = Query(), Query(), Query(), Query()
self.check_both(a | b, c | d, Union(a, b, c, d))
def test_with_nothing(self):
q = Query()
self.check_both(~Q(), q, q)
def test_with_everything(self):
self.check_both(Q(), Query(), Q())
def test_inversion(self):
q = Query()
assert_is_instance(~q, Inversion)
eq_((~q).subquery, q)
def test_intersection(self):
a, b = Query(), Query()
q = a & b
assert_is_instance(q, Intersection)
assert_set_equal(q.subqueries, set((a, b)))
def test_union(self):
a, b = Query(), Query()
q = a | b
assert_is_instance(q, Union)
assert_set_equal(q.subqueries, set((a, b)))