def test_length(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
pneg1 = PathRegistry.coerce(())
p0 = PathRegistry.coerce((umapper,))
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p3 = PathRegistry.coerce(
(
umapper,
umapper.attrs.addresses,
amapper,
amapper.attrs.email_address,
)
)
eq_(len(pneg1), 0)
eq_(len(p0), 1)
eq_(len(p1), 2)
eq_(len(p2), 3)
eq_(len(p3), 4)
eq_(pneg1.length, 0)
eq_(p0.length, 1)
eq_(p1.length, 2)
eq_(p2.length, 3)
eq_(p3.length, 4)
def test_serialize_context_dict(self):
reg = util.OrderedDict()
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p3 = PathRegistry.coerce((amapper, amapper.attrs.email_address))
p1.set(reg, "p1key", "p1value")
p2.set(reg, "p2key", "p2value")
p3.set(reg, "p3key", "p3value")
eq_(
reg,
{
("p1key", p1.path): "p1value",
("p2key", p2.path): "p2value",
("p3key", p3.path): "p3value",
},
)
serialized = PathRegistry.serialize_context_dict(
reg, ("p1key", "p2key")
)
eq_(
serialized,
[
(("p1key", p1.serialize()), "p1value"),
(("p2key", p2.serialize()), "p2value"),
],
)
def test_deseralize(self):
User = self.classes.User
Address = self.classes.Address
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce(
(
umapper,
umapper.attrs.addresses,
amapper,
amapper.attrs.email_address,
)
)
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p3 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
eq_(
PathRegistry.deserialize(
[(User, "addresses"), (Address, "email_address")]
),
p1,
)
eq_(
PathRegistry.deserialize([(User, "addresses"), (Address, None)]),
p2,
)
eq_(PathRegistry.deserialize([(User, "addresses")]), p3)
def test_with_poly_sub(self):
Company = _poly_fixtures.Company
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
emapper = inspect(Engineer)
cmapper = inspect(Company)
p_poly = with_polymorphic(Person, [Engineer])
e_poly_insp = inspect(p_poly.Engineer) # noqa - used by comment below
p_poly_insp = inspect(p_poly)
p1 = PathRegistry.coerce((p_poly_insp, emapper.attrs.machines))
# changes as of #5082: when a with_polymorphic is in the middle
# of a path, the natural path makes sure it uses the base mappers,
# however when it's at the root, the with_polymorphic stays in
# the natural path
# this behavior is the same as pre #5082, it was temporarily changed
# but this proved to be incorrect. The path starts on a
# with_polymorphic(), so a Query will "naturally" construct a path
# that comes from that wp.
eq_(p1.path, (e_poly_insp, emapper.attrs.machines))
eq_(p1.natural_path, (e_poly_insp, emapper.attrs.machines))
# this behavior is new as of the final version of #5082.
# the path starts on a normal entity and has a with_polymorphic
# in the middle, for this to match what Query will generate it needs
# to use the non aliased mappers in the natural path.
p2 = PathRegistry.coerce(
(
cmapper,
cmapper.attrs.employees,
p_poly_insp,
emapper.attrs.machines,
)
)
eq_(
p2.path,
(
cmapper,
cmapper.attrs.employees,
e_poly_insp,
emapper.attrs.machines,
),
)
eq_(
p2.natural_path,
(
cmapper,
cmapper.attrs.employees,
emapper,
emapper.attrs.machines,
),
)
def test_path(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p3 = PathRegistry.coerce((amapper, amapper.attrs.email_address))
eq_(p1.path, (umapper, umapper.attrs.addresses))
eq_(p2.path, (umapper, umapper.attrs.addresses, amapper))
eq_(p3.path, (amapper, amapper.attrs.email_address))
def test_plain_aliased_compound(self):
Company = _poly_fixtures.Company
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
cmapper = inspect(Company)
emapper = inspect(Engineer)
c_alias = aliased(Company)
p_alias = aliased(Person)
c_alias = inspect(c_alias)
p_alias = inspect(p_alias)
p1 = PathRegistry.coerce(
(c_alias, cmapper.attrs.employees, p_alias, emapper.attrs.machines)
)
# plain AliasedClass - the path keeps that AliasedClass directly
# as is in the path
eq_(
p1.path,
(
c_alias,
cmapper.attrs.employees,
p_alias,
emapper.attrs.machines,
),
)
def test_nonpoly_oftype_subclass(self):
Company = _poly_fixtures.Company
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
emapper = inspect(Engineer)
cmapper = inspect(Company)
pmapper = inspect(Person)
p1 = PathRegistry.coerce(
(
cmapper,
cmapper.attrs.employees,
emapper,
emapper.attrs.paperwork,
)
)
eq_(
p1.path,
(
cmapper,
cmapper.attrs.employees,
pmapper,
pmapper.attrs.paperwork,
),
)
eq_(
p1.natural_path,
(
cmapper,
cmapper.attrs.employees,
pmapper,
pmapper.attrs.paperwork,
),
)
def test_addition(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((amapper, amapper.attrs.email_address))
eq_(
p1 + p2,
PathRegistry.coerce(
(
umapper,
umapper.attrs.addresses,
amapper,
amapper.attrs.email_address,
)
),
)
def test_eq(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
u_alias = inspect(aliased(self.classes.User))
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p3 = PathRegistry.coerce((umapper, umapper.attrs.name))
p4 = PathRegistry.coerce((u_alias, umapper.attrs.addresses))
p5 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p6 = PathRegistry.coerce(
(amapper, amapper.attrs.user, umapper, umapper.attrs.addresses)
)
p7 = PathRegistry.coerce(
(
amapper,
amapper.attrs.user,
umapper,
umapper.attrs.addresses,
amapper,
amapper.attrs.email_address,
)
)
is_(p1 == p2, True)
is_(p1 == p3, False)
is_(p1 == p4, False)
is_(p1 == p5, False)
is_(p6 == p7, False)
is_(p6 == p7.parent.parent, True)
is_(p1 != p2, False)
is_(p1 != p3, True)
is_(p1 != p4, True)
is_(p1 != p5, True)
def test_expand(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
path = PathRegistry.coerce((umapper,))
eq_(
path[umapper.attrs.addresses][amapper][
amapper.attrs.email_address
],
PathRegistry.coerce(
(
umapper,
umapper.attrs.addresses,
amapper,
amapper.attrs.email_address,
)
),
)
def test_nonpoly_oftype_aliased_subclass_onroot(self):
Engineer = _poly_fixtures.Engineer
eng_alias = aliased(Engineer)
ea_insp = inspect(eng_alias)
p1 = PathRegistry.coerce((ea_insp, ea_insp.mapper.attrs.paperwork))
eq_(p1.path, (ea_insp, ea_insp.mapper.attrs.paperwork))
eq_(p1.natural_path, (ea_insp, ea_insp.mapper.attrs.paperwork))
def test_registry_contains(self):
reg = {}
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p3 = PathRegistry.coerce((amapper, amapper.attrs.email_address))
reg.update(
{
("p1key", p1.path): "p1value",
("p2key", p2.path): "p2value",
("p3key", p3.path): "p3value",
}
)
assert p1.contains(reg, "p1key")
assert not p1.contains(reg, "p2key")
assert p3.contains(reg, "p3key")
assert not p2.contains(reg, "fake")
def test_serialize(self):
User = self.classes.User
Address = self.classes.Address
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce(
(
umapper,
umapper.attrs.addresses,
amapper,
amapper.attrs.email_address,
)
)
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p3 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
eq_(p1.serialize(), [(User, "addresses"), (Address, "email_address")])
eq_(p2.serialize(), [(User, "addresses"), (Address, None)])
eq_(p3.serialize(), [(User, "addresses")])
def test_registry_set(self):
reg = {}
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p3 = PathRegistry.coerce((amapper, amapper.attrs.email_address))
p1.set(reg, "p1key", "p1value")
p2.set(reg, "p2key", "p2value")
p3.set(reg, "p3key", "p3value")
eq_(
reg,
{
("p1key", p1.path): "p1value",
("p2key", p2.path): "p2value",
("p3key", p3.path): "p3value",
},
)
def test_registry_setdefault(self):
reg = {}
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
reg.update({("p1key", p1.path): "p1value"})
p1.setdefault(reg, "p1key", "p1newvalue_a")
p1.setdefault(reg, "p1key_new", "p1newvalue_b")
p2.setdefault(reg, "p2key", "p2newvalue")
eq_(
reg,
{
("p1key", p1.path): "p1value",
("p1key_new", p1.path): "p1newvalue_b",
("p2key", p2.path): "p2newvalue",
},
)
def test_plain(self):
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
pmapper = inspect(Person)
emapper = inspect(Engineer)
p1 = PathRegistry.coerce((pmapper, emapper.attrs.machines))
# given a mapper and an attribute on a subclass,
# the path converts what you get to be against that subclass
eq_(p1.path, (emapper, emapper.attrs.machines))
def test_registry_get(self):
reg = {}
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p3 = PathRegistry.coerce((amapper, amapper.attrs.email_address))
reg.update(
{
("p1key", p1.path): "p1value",
("p2key", p2.path): "p2value",
("p3key", p3.path): "p3value",
}
)
eq_(p1.get(reg, "p1key"), "p1value")
eq_(p2.get(reg, "p2key"), "p2value")
eq_(p2.get(reg, "p1key"), None)
eq_(p3.get(reg, "p3key"), "p3value")
eq_(p3.get(reg, "p1key"), None)
def test_slice(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
path = PathRegistry.coerce(
(
umapper,
umapper.attrs.addresses,
amapper,
amapper.attrs.email_address,
)
)
eq_(path[1:3], (umapper.attrs.addresses, amapper))
def test_plain_aliased(self):
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
emapper = inspect(Engineer)
p_alias = aliased(Person)
p_alias = inspect(p_alias)
p1 = PathRegistry.coerce((p_alias, emapper.attrs.machines))
# plain AliasedClass - the path keeps that AliasedClass directly
# as is in the path
eq_(p1.path, (p_alias, emapper.attrs.machines))
def test_with_poly_use_mapper(self):
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
emapper = inspect(Engineer)
p_poly = with_polymorphic(Person, [Engineer], _use_mapper_path=True)
p_poly = inspect(p_poly)
p1 = PathRegistry.coerce((p_poly, emapper.attrs.machines))
# polymorphic AliasedClass with the "use_mapper_path" flag -
# the AliasedClass acts just like the base mapper
eq_(p1.path, (emapper, emapper.attrs.machines))
def test_indexed_entity(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
path = PathRegistry.coerce(
(
umapper,
umapper.attrs.addresses,
amapper,
amapper.attrs.email_address,
)
)
is_(path[0], umapper)
is_(path[2], amapper)
def test_indexed_key(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
path = PathRegistry.coerce(
(
umapper,
umapper.attrs.addresses,
amapper,
amapper.attrs.email_address,
)
)
eq_(path[1], umapper.attrs.addresses)
eq_(path[3], amapper.attrs.email_address)
def test_deseralize_context_dict(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses, amapper))
p3 = PathRegistry.coerce((amapper, amapper.attrs.email_address))
serialized = [
(("p1key", p1.serialize()), "p1value"),
(("p2key", p2.serialize()), "p2value"),
(("p3key", p3.serialize()), "p3value"),
]
deserialized = PathRegistry.deserialize_context_dict(serialized)
eq_(
deserialized,
{
("p1key", p1.path): "p1value",
("p2key", p2.path): "p2value",
("p3key", p3.path): "p3value",
},
)
def test_with_poly_base_one(self):
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
pmapper = inspect(Person)
emapper = inspect(Engineer)
p_poly = with_polymorphic(Person, [Engineer])
p_poly = inspect(p_poly)
# "name" is actually on Person, not Engineer
p1 = PathRegistry.coerce((p_poly, emapper.attrs.name))
# polymorphic AliasedClass - because "name" is on Person,
# we get Person, not Engineer
eq_(p1.path, (p_poly, pmapper.attrs.name))
def test_eq_non_path(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
u_alias = inspect(aliased(self.classes.User))
p1 = PathRegistry.coerce((umapper,))
p2 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
p3 = PathRegistry.coerce((u_alias, umapper.attrs.addresses))
p4 = PathRegistry.coerce((u_alias, umapper.attrs.addresses, amapper))
p5 = PathRegistry.coerce((u_alias,)).token(":*")
non_object = 54.1432
for obj in [p1, p2, p3, p4, p5]:
with expect_warnings(
"Comparison of PathRegistry to "
"<.* 'float'> is not supported"
):
is_(obj == non_object, False)
with expect_warnings(
"Comparison of PathRegistry to "
"<.* 'float'> is not supported"
):
is_(obj != non_object, True)
def test_with_poly_base_two(self):
Company = _poly_fixtures.Company
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
cmapper = inspect(Company)
pmapper = inspect(Person)
p_poly = with_polymorphic(Person, [Engineer])
e_poly_insp = inspect(p_poly.Engineer) # noqa - used by comment below
p_poly_insp = inspect(p_poly)
p1 = PathRegistry.coerce(
(
cmapper,
cmapper.attrs.employees,
p_poly_insp,
pmapper.attrs.paperwork,
)
)
eq_(
p1.path,
(
cmapper,
cmapper.attrs.employees,
p_poly_insp,
pmapper.attrs.paperwork,
),
)
eq_(
p1.natural_path,
(
cmapper,
cmapper.attrs.employees,
pmapper,
pmapper.attrs.paperwork,
),
)
def test_plain_compound(self):
Company = _poly_fixtures.Company
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
cmapper = inspect(Company)
pmapper = inspect(Person)
emapper = inspect(Engineer)
p1 = PathRegistry.coerce(
(cmapper, cmapper.attrs.employees, pmapper, emapper.attrs.machines)
)
# given a mapper and an attribute on a subclass,
# the path converts what you get to be against that subclass
eq_(
p1.path,
(
cmapper,
cmapper.attrs.employees,
emapper,
emapper.attrs.machines,
),
)
def test_nonpoly_oftype_aliased_subclass(self):
Company = _poly_fixtures.Company
Person = _poly_fixtures.Person
Engineer = _poly_fixtures.Engineer
cmapper = inspect(Company)
pmapper = inspect(Person)
eng_alias = aliased(Engineer)
ea_insp = inspect(eng_alias)
p1 = PathRegistry.coerce(
(
cmapper,
cmapper.attrs.employees,
ea_insp,
ea_insp.mapper.attrs.paperwork,
)
)
eq_(
p1.path,
(
cmapper,
cmapper.attrs.employees,
ea_insp,
ea_insp.mapper.attrs.paperwork,
),
)
eq_(
p1.natural_path,
(
cmapper,
cmapper.attrs.employees,
pmapper,
pmapper.attrs.paperwork,
),
)
def test_aliased_class(self):
User = self.classes.User
ua = aliased(User)
ua_insp = inspect(ua)
path = PathRegistry.coerce((ua_insp, ua_insp.mapper.attrs.addresses))
assert path.parent.is_aliased_class
def test_contains_mapper(self):
umapper = inspect(self.classes.User)
amapper = inspect(self.classes.Address)
p1 = PathRegistry.coerce((umapper, umapper.attrs.addresses))
assert p1.contains_mapper(umapper)
assert not p1.contains_mapper(amapper)