def test_dangling_foreign_key_returns_error(self, sess):
cn = sut.FromModel(ChildA)
actual = cn.check({"child_id": 1,
"parent_id": 1,
"name": "x"},
session=sess)
assert actual == Error({"parent_id": Error("does-not-exist")})
def test_existing_foreign_key_passes(self, sess):
cn = sut.FromModel(ChildA)
sess.add(Parent(parent_id=1))
actual = cn.check({"child_id": 1,
"parent_id": 1,
"name": "x"},
session=sess)
assert not actual
def test_duplicate_field_merges_with_other_errors(self, sess):
cn = sut.FromModel(ChildA)
sess.add(Parent(parent_id=1))
sess.add(ChildA(child_id=1, name=11 * "x", parent_id=1))
actual = cn.check({"child_id": 2,
"parent_id": 1,
"name": 11 * "x"},
session=sess)
assert actual == Error({"name": Error("max-size", "duplicate")})
def test_duplicate_field_in_context_returns_error(self, sess):
cn = sut.FromModel(ChildA)
sess.add(Parent(parent_id=1))
sess.add(ChildA(name="x", parent_id=1))
actual = cn.check({"child_id": 314,
"parent_id": 1,
"name": "x"},
session=sess)
assert actual == Error({"name": Error("duplicate")})
def test_ignore_correctly_applied_to_multi_path_constraints(self, sess):
sess.add(Parent(parent_id=1))
sess.add(Parent(parent_id=2))
sess.add(ChildA(child_id=1, parent_id=1, name='A'))
sess.add(ChildB(child_id=1, parent_id=2, name='B'))
sess.commit()
cn = sut.FromModel(GrandChild, ignore=set([Parent]))
actual = cn.check({"parent_a_id": 1, "parent_b_id": 1}, session=sess)
assert actual == Error({"name": Error("missing")})
def test_consider_foreign_key_dangling_when_out_of_context(self, sess):
# TODO: refactor this test
cn = sut.FromModel(ChildA)
owner = Owner(owner_id=1)
sess.add(owner)
sess.add(Owner(owner_id=2))
sess.add(Parent(parent_id=1, owner_id=2))
actual = cn.check({"parent_id": 1,
"name": "x"},
session=sess,
within=owner)
assert actual == Error({"parent_id": Error("does-not-exist")})
def test_multi_path_constraints_trigger(self, sess):
# TODO: refactor this test
sess.add(Parent(parent_id=1))
sess.add(Parent(parent_id=2))
sess.add(ChildA(child_id=1, parent_id=1, name='A'))
sess.add(ChildB(child_id=1, parent_id=2, name='B'))
sess.commit()
cn = sut.FromModel(GrandChild)
actual = cn.check({"parent_a_id": 1, "parent_b_id": 1}, session=sess)
unwrapped = actual.unwrap()
assert len(unwrapped) == 1
assert set(unwrapped[0].keys()[0]) == {"parent_a_id", "parent_b_id"}
assert unwrapped[0].keys()[1] == "name"
assert unwrapped[0].values() == [["mismatch (parent)"], ["missing"]]
def test_missing_non_nullable_returns_error(self, sess):
cn = sut.FromModel(ChildA)
actual = cn.check({"child_id": 1}, session=sess)
assert actual == Error({"name": Error("missing")})