def test_str_to_predicate(self):
nt = collections.namedtuple("FooBar", "foo bar")
obj1 = nt(foo=True, bar=None)
obj2 = nt(foo=None, bar=obj1)
self.assertEqual(obj2.bar.foo, True)
pred = Collection._str_to_predicate("bar.foo")
self.assertEqual(pred(obj2), True)
pred = Collection._str_to_predicate("bar")
self.assertEqual(pred(obj2), obj1)
pred = Collection._str_to_predicate("bar.xyz")
with self.assertRaises(AttributeError):
pred(obj2)
def test_str_to_predicate(self):
nt = collections.namedtuple("FooBar", "foo bar")
obj1 = nt(foo=True, bar=None)
obj2 = nt(foo=None, bar=obj1)
assert obj2.bar.foo is True
pred = Collection._str_to_predicate("bar.foo")
assert pred(obj2) is True
pred = Collection._str_to_predicate("bar")
assert pred(obj2) == obj1
pred = Collection._str_to_predicate("bar.xyz")
with pytest.raises(AttributeError):
pred(obj2)