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from sqlalchemy.testing import eq_, assert_raises, \
assert_raises_message
from sqlalchemy.ext import declarative as decl
from sqlalchemy import exc
import sqlalchemy as sa
from sqlalchemy import testing, util
from sqlalchemy import MetaData, Integer, String, ForeignKey, \
ForeignKeyConstraint, Index
from sqlalchemy.testing.schema import Table, Column
from sqlalchemy.orm import relationship, create_session, class_mapper, \
joinedload, configure_mappers, backref, clear_mappers, \
column_property, composite, Session, properties
from sqlalchemy.util import with_metaclass
from sqlalchemy.ext.declarative import declared_attr, synonym_for
from sqlalchemy.testing import fixtures, mock
from sqlalchemy.orm.events import MapperEvents
from sqlalchemy.orm import mapper
from sqlalchemy import event
Base = None
User = Address = None
class DeclarativeTestBase(fixtures.TestBase,
testing.AssertsExecutionResults,
testing.AssertsCompiledSQL):
__dialect__ = 'default'
def setup(self):
global Base
Base = decl.declarative_base(testing.db)
def teardown(self):
Session.close_all()
clear_mappers()
Base.metadata.drop_all()
class DeclarativeTest(DeclarativeTestBase):
def test_basic(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
addresses = relationship("Address", backref="user")
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column(String(50), key='_email')
user_id = Column('user_id', Integer, ForeignKey('users.id'),
key='_user_id')
Base.metadata.create_all()
eq_(Address.__table__.c['id'].name, 'id')
eq_(Address.__table__.c['_email'].name, 'email')
eq_(Address.__table__.c['_user_id'].name, 'user_id')
u1 = User(name='u1', addresses=[
Address(email='one'),
Address(email='two'),
])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).all(), [User(name='u1', addresses=[
Address(email='one'),
Address(email='two'),
])])
a1 = sess.query(Address).filter(Address.email == 'two').one()
eq_(a1, Address(email='two'))
eq_(a1.user, User(name='u1'))
def test_unicode_string_resolve(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
addresses = relationship(util.u("Address"), backref="user")
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column(String(50), key='_email')
user_id = Column('user_id', Integer, ForeignKey('users.id'),
key='_user_id')
assert User.addresses.property.mapper.class_ is Address
def test_unicode_string_resolve_backref(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column(String(50), key='_email')
user_id = Column('user_id', Integer, ForeignKey('users.id'),
key='_user_id')
user = relationship(
User,
backref=backref("addresses",
order_by=util.u("Address.email")))
assert Address.user.property.mapper.class_ is User
def test_no_table(self):
def go():
class User(Base):
id = Column('id', Integer, primary_key=True)
assert_raises_message(sa.exc.InvalidRequestError,
'does not have a __table__', go)
def test_table_args_empty_dict(self):
class MyModel(Base):
__tablename__ = 'test'
id = Column(Integer, primary_key=True)
__table_args__ = {}
def test_table_args_empty_tuple(self):
class MyModel(Base):
__tablename__ = 'test'
id = Column(Integer, primary_key=True)
__table_args__ = ()
def test_cant_add_columns(self):
t = Table(
't', Base.metadata,
Column('id', Integer, primary_key=True),
Column('data', String))
def go():
class User(Base):
__table__ = t
foo = Column(Integer, primary_key=True)
# can't specify new columns not already in the table
assert_raises_message(sa.exc.ArgumentError,
"Can't add additional column 'foo' when "
"specifying __table__", go)
# regular re-mapping works tho
class Bar(Base):
__table__ = t
some_data = t.c.data
assert class_mapper(Bar).get_property('some_data').columns[0] \
is t.c.data
def test_column_named_twice(self):
def go():
class Foo(Base):
__tablename__ = 'foo'
id = Column(Integer, primary_key=True)
x = Column('x', Integer)
y = Column('x', Integer)
assert_raises_message(
sa.exc.SAWarning,
"On class 'Foo', Column object 'x' named directly multiple times, "
"only one will be used: x, y",
go
)
def test_column_repeated_under_prop(self):
def go():
class Foo(Base):
__tablename__ = 'foo'
id = Column(Integer, primary_key=True)
x = Column('x', Integer)
y = column_property(x)
z = Column('x', Integer)
assert_raises_message(
sa.exc.SAWarning,
"On class 'Foo', Column object 'x' named directly multiple times, "
"only one will be used: x, y, z",
go
)
def test_relationship_level_msg_for_invalid_callable(self):
class A(Base):
__tablename__ = 'a'
id = Column(Integer, primary_key=True)
class B(Base):
__tablename__ = 'b'
id = Column(Integer, primary_key=True)
a_id = Column(Integer, ForeignKey('a.id'))
a = relationship('a')
assert_raises_message(
sa.exc.ArgumentError,
"relationship 'a' expects a class or a mapper "
"argument .received: .*Table",
configure_mappers
)
def test_relationship_level_msg_for_invalid_object(self):
class A(Base):
__tablename__ = 'a'
id = Column(Integer, primary_key=True)
class B(Base):
__tablename__ = 'b'
id = Column(Integer, primary_key=True)
a_id = Column(Integer, ForeignKey('a.id'))
a = relationship(A.__table__)
assert_raises_message(
sa.exc.ArgumentError,
"relationship 'a' expects a class or a mapper "
"argument .received: .*Table",
configure_mappers
)
def test_difficult_class(self):
"""test no getattr() errors with a customized class"""
# metaclass to mock the way zope.interface breaks getattr()
class BrokenMeta(type):
def __getattribute__(self, attr):
if attr == 'xyzzy':
raise AttributeError('xyzzy')
else:
return object.__getattribute__(self, attr)
# even though this class has an xyzzy attribute, getattr(cls,"xyzzy")
# fails
class BrokenParent(with_metaclass(BrokenMeta)):
xyzzy = "magic"
# _as_declarative() inspects obj.__class__.__bases__
class User(BrokenParent, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
decl.instrument_declarative(User, {}, Base.metadata)
def test_reserved_identifiers(self):
def go1():
class User1(Base):
__tablename__ = 'user1'
id = Column(Integer, primary_key=True)
metadata = Column(Integer)
def go2():
class User2(Base):
__tablename__ = 'user2'
id = Column(Integer, primary_key=True)
metadata = relationship("Address")
for go in (go1, go2):
assert_raises_message(
exc.InvalidRequestError,
"Attribute name 'metadata' is reserved "
"for the MetaData instance when using a "
"declarative base class.",
go
)
def test_undefer_column_name(self):
# TODO: not sure if there was an explicit
# test for this elsewhere
foo = Column(Integer)
eq_(str(foo), '(no name)')
eq_(foo.key, None)
eq_(foo.name, None)
decl.base._undefer_column_name('foo', foo)
eq_(str(foo), 'foo')
eq_(foo.key, 'foo')
eq_(foo.name, 'foo')
def test_recompile_on_othermapper(self):
"""declarative version of the same test in mappers.py"""
from sqlalchemy.orm import mapperlib
class User(Base):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True)
name = Column('name', String(50))
class Address(Base):
__tablename__ = 'addresses'
id = Column('id', Integer, primary_key=True)
email = Column('email', String(50))
user_id = Column('user_id', Integer, ForeignKey('users.id'))
user = relationship("User", primaryjoin=user_id == User.id,
backref="addresses")
assert mapperlib.Mapper._new_mappers is True
u = User() # noqa
assert User.addresses
assert mapperlib.Mapper._new_mappers is False
def test_string_dependency_resolution(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column(String(50))
addresses = relationship(
'Address',
order_by='desc(Address.email)',
primaryjoin='User.id==Address.user_id',
foreign_keys='[Address.user_id]',
backref=backref('user',
primaryjoin='User.id==Address.user_id',
foreign_keys='[Address.user_id]'))
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column(String(50))
user_id = Column(Integer) # note no foreign key
Base.metadata.create_all()
sess = create_session()
u1 = User(
name='ed', addresses=[
Address(email='abc'),
Address(email='def'), Address(email='xyz')])
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).filter(User.name == 'ed').one(),
User(name='ed', addresses=[
Address(email='xyz'),
Address(email='def'), Address(email='abc')]))
class Foo(Base, fixtures.ComparableEntity):
__tablename__ = 'foo'
id = Column(Integer, primary_key=True)
rel = relationship('User',
primaryjoin='User.addresses==Foo.id')
assert_raises_message(exc.InvalidRequestError,
"'addresses' is not an instance of "
"ColumnProperty", configure_mappers)
def test_string_dependency_resolution_synonym(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column(String(50))
Base.metadata.create_all()
sess = create_session()
u1 = User(name='ed')
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).filter(User.name == 'ed').one(),
User(name='ed'))
class Foo(Base, fixtures.ComparableEntity):
__tablename__ = 'foo'
id = Column(Integer, primary_key=True)
_user_id = Column(Integer)
rel = relationship('User',
uselist=False,
foreign_keys=[User.id],
primaryjoin='Foo.user_id==User.id')
@synonym_for('_user_id')
@property
def user_id(self):
return self._user_id
foo = Foo()
foo.rel = u1
assert foo.rel == u1
def test_string_dependency_resolution_orm_descriptor(self):
from sqlalchemy.ext.hybrid import hybrid_property
class User(Base):
__tablename__ = 'user'
id = Column(Integer, primary_key=True)
firstname = Column(String(50))
lastname = Column(String(50))
game_id = Column(Integer, ForeignKey('game.id'))
@hybrid_property
def fullname(self):
return self.firstname + " " + self.lastname
class Game(Base):
__tablename__ = 'game'
id = Column(Integer, primary_key=True)
name = Column(String(50))
users = relationship("User", order_by="User.fullname")
s = Session()
self.assert_compile(
s.query(Game).options(joinedload(Game.users)),
"SELECT game.id AS game_id, game.name AS game_name, "
"user_1.id AS user_1_id, user_1.firstname AS user_1_firstname, "
"user_1.lastname AS user_1_lastname, "
"user_1.game_id AS user_1_game_id "
"FROM game LEFT OUTER JOIN \"user\" AS user_1 ON game.id = "
"user_1.game_id ORDER BY "
"user_1.firstname || :firstname_1 || user_1.lastname"
)
def test_string_dependency_resolution_asselectable(self):
class A(Base):
__tablename__ = 'a'
id = Column(Integer, primary_key=True)
b_id = Column(ForeignKey('b.id'))
d = relationship(
"D",
secondary="join(B, D, B.d_id == D.id)."
"join(C, C.d_id == D.id)",
primaryjoin="and_(A.b_id == B.id, A.id == C.a_id)",
secondaryjoin="D.id == B.d_id",
)
class B(Base):
__tablename__ = 'b'
id = Column(Integer, primary_key=True)
d_id = Column(ForeignKey('d.id'))
class C(Base):
__tablename__ = 'c'
id = Column(Integer, primary_key=True)
a_id = Column(ForeignKey('a.id'))
d_id = Column(ForeignKey('d.id'))
class D(Base):
__tablename__ = 'd'
id = Column(Integer, primary_key=True)
s = Session()
self.assert_compile(
s.query(A).join(A.d),
"SELECT a.id AS a_id, a.b_id AS a_b_id FROM a JOIN "
"(b AS b_1 JOIN d AS d_1 ON b_1.d_id = d_1.id "
"JOIN c AS c_1 ON c_1.d_id = d_1.id) ON a.b_id = b_1.id "
"AND a.id = c_1.a_id JOIN d ON d.id = b_1.d_id",
)
def test_string_dependency_resolution_no_table(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column(String(50))
class Bar(Base, fixtures.ComparableEntity):
__tablename__ = 'bar'
id = Column(Integer, primary_key=True)
rel = relationship('User',
primaryjoin='User.id==Bar.__table__.id')
assert_raises_message(exc.InvalidRequestError,
"does not have a mapped column named "
"'__table__'", configure_mappers)
def test_string_w_pj_annotations(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column(String(50))
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column(String(50))
user_id = Column(Integer)
user = relationship(
"User",
primaryjoin="remote(User.id)==foreign(Address.user_id)"
)
eq_(
Address.user.property._join_condition.local_remote_pairs,
[(Address.__table__.c.user_id, User.__table__.c.id)]
)
def test_string_dependency_resolution_no_magic(self):
"""test that full tinkery expressions work as written"""
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True)
addresses = relationship(
'Address',
primaryjoin='User.id==Address.user_id.prop.columns[0]')
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True)
user_id = Column(Integer, ForeignKey('users.id'))
configure_mappers()
eq_(str(User.addresses.prop.primaryjoin),
'users.id = addresses.user_id')
def test_string_dependency_resolution_module_qualified(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True)
addresses = relationship(
'%s.Address' % __name__,
primaryjoin='%s.User.id==%s.Address.user_id.prop.columns[0]'
% (__name__, __name__))
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True)
user_id = Column(Integer, ForeignKey('users.id'))
configure_mappers()
eq_(str(User.addresses.prop.primaryjoin),
'users.id = addresses.user_id')
def test_string_dependency_resolution_in_backref(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True)
name = Column(String(50))
addresses = relationship('Address',
primaryjoin='User.id==Address.user_id',
backref='user')
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True)
email = Column(String(50))
user_id = Column(Integer, ForeignKey('users.id'))
configure_mappers()
eq_(str(User.addresses.property.primaryjoin),
str(Address.user.property.primaryjoin))
def test_string_dependency_resolution_tables(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True)
name = Column(String(50))
props = relationship('Prop', secondary='user_to_prop',
primaryjoin='User.id==user_to_prop.c.u'
'ser_id',
secondaryjoin='user_to_prop.c.prop_id='
'=Prop.id', backref='users')
class Prop(Base, fixtures.ComparableEntity):
__tablename__ = 'props'
id = Column(Integer, primary_key=True)
name = Column(String(50))
user_to_prop = Table(
'user_to_prop', Base.metadata,
Column('user_id', Integer, ForeignKey('users.id')),
Column('prop_id', Integer, ForeignKey('props.id')))
configure_mappers()
assert class_mapper(User).get_property('props').secondary \
is user_to_prop
def test_string_dependency_resolution_schemas(self):
Base = decl.declarative_base()
class User(Base):
__tablename__ = 'users'
__table_args__ = {'schema': 'fooschema'}
id = Column(Integer, primary_key=True)
name = Column(String(50))
props = relationship(
'Prop', secondary='fooschema.user_to_prop',
primaryjoin='User.id==fooschema.user_to_prop.c.user_id',
secondaryjoin='fooschema.user_to_prop.c.prop_id==Prop.id',
backref='users')
class Prop(Base):
__tablename__ = 'props'
__table_args__ = {'schema': 'fooschema'}
id = Column(Integer, primary_key=True)
name = Column(String(50))
user_to_prop = Table(
'user_to_prop', Base.metadata,
Column('user_id', Integer, ForeignKey('fooschema.users.id')),
Column('prop_id', Integer, ForeignKey('fooschema.props.id')),
schema='fooschema')
configure_mappers()
assert class_mapper(User).get_property('props').secondary \
is user_to_prop
def test_string_dependency_resolution_annotations(self):
Base = decl.declarative_base()
class Parent(Base):
__tablename__ = 'parent'
id = Column(Integer, primary_key=True)
name = Column(String)
children = relationship(
"Child",
primaryjoin="Parent.name=="
"remote(foreign(func.lower(Child.name_upper)))"
)
class Child(Base):
__tablename__ = 'child'
id = Column(Integer, primary_key=True)
name_upper = Column(String)
configure_mappers()
eq_(
Parent.children.property._calculated_foreign_keys,
set([Child.name_upper.property.columns[0]])
)
def test_shared_class_registry(self):
reg = {}
Base1 = decl.declarative_base(testing.db, class_registry=reg)
Base2 = decl.declarative_base(testing.db, class_registry=reg)
class A(Base1):
__tablename__ = 'a'
id = Column(Integer, primary_key=True)
class B(Base2):
__tablename__ = 'b'
id = Column(Integer, primary_key=True)
aid = Column(Integer, ForeignKey(A.id))
as_ = relationship("A")
assert B.as_.property.mapper.class_ is A
def test_uncompiled_attributes_in_relationship(self):
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column(String(50))
user_id = Column(Integer, ForeignKey('users.id'))
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column(String(50))
addresses = relationship('Address', order_by=Address.email,
foreign_keys=Address.user_id,
remote_side=Address.user_id)
# get the mapper for User. User mapper will compile,
# "addresses" relationship will call upon Address.user_id for
# its clause element. Address.user_id is a _CompileOnAttr,
# which then calls class_mapper(Address). But ! We're already
# "in compilation", but class_mapper(Address) needs to
# initialize regardless, or COA's assertion fails and things
# generally go downhill from there.
class_mapper(User)
Base.metadata.create_all()
sess = create_session()
u1 = User(name='ed', addresses=[
Address(email='abc'),
Address(email='xyz'), Address(email='def')])
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).filter(User.name == 'ed').one(),
User(name='ed', addresses=[
Address(email='abc'),
Address(email='def'), Address(email='xyz')]))
def test_nice_dependency_error(self):
class User(Base):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True)
addresses = relationship('Address')
class Address(Base):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True)
foo = sa.orm.column_property(User.id == 5)
# this used to raise an error when accessing User.id but that's
# no longer the case since we got rid of _CompileOnAttr.
assert_raises(sa.exc.ArgumentError, configure_mappers)
def test_nice_dependency_error_works_with_hasattr(self):
class User(Base):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True)
addresses = relationship('Address')
# hasattr() on a compile-loaded attribute
try:
hasattr(User.addresses, 'property')
except exc.InvalidRequestError:
assert sa.util.compat.py32
# the exception is preserved. Remains the
# same through repeated calls.
for i in range(3):
assert_raises_message(
sa.exc.InvalidRequestError,
"^One or more mappers failed to initialize - "
"can't proceed with initialization of other "
"mappers. Original exception was: When initializing.*",
configure_mappers)
def test_custom_base(self):
class MyBase(object):
def foobar(self):
return "foobar"
Base = decl.declarative_base(cls=MyBase)
assert hasattr(Base, 'metadata')
assert Base().foobar() == "foobar"
def test_uses_get_on_class_col_fk(self):
# test [ticket:1492]
class Master(Base):
__tablename__ = 'master'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
class Detail(Base):
__tablename__ = 'detail'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
master_id = Column(None, ForeignKey(Master.id))
master = relationship(Master)
Base.metadata.create_all()
configure_mappers()
assert class_mapper(Detail).get_property('master'
).strategy.use_get
m1 = Master()
d1 = Detail(master=m1)
sess = create_session()
sess.add(d1)
sess.flush()
sess.expunge_all()
d1 = sess.query(Detail).first()
m1 = sess.query(Master).first()
def go():
assert d1.master
self.assert_sql_count(testing.db, go, 0)
def test_index_doesnt_compile(self):
class User(Base):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True)
name = Column('name', String(50))
error = relationship("Address")
i = Index('my_index', User.name)
# compile fails due to the nonexistent Addresses relationship
assert_raises(sa.exc.InvalidRequestError, configure_mappers)
# index configured
assert i in User.__table__.indexes
assert User.__table__.c.id not in set(i.columns)
assert User.__table__.c.name in set(i.columns)
# tables create fine
Base.metadata.create_all()
def test_add_prop(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
User.name = Column('name', String(50))
User.addresses = relationship('Address', backref='user')
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
Address.email = Column(String(50), key='_email')
Address.user_id = Column('user_id', Integer,
ForeignKey('users.id'), key='_user_id')
Base.metadata.create_all()
eq_(Address.__table__.c['id'].name, 'id')
eq_(Address.__table__.c['_email'].name, 'email')
eq_(Address.__table__.c['_user_id'].name, 'user_id')
u1 = User(name='u1', addresses=[Address(email='one'),
Address(email='two')])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).all(), [
User(
name='u1',
addresses=[Address(email='one'), Address(email='two')])])
a1 = sess.query(Address).filter(Address.email == 'two').one()
eq_(a1, Address(email='two'))
eq_(a1.user, User(name='u1'))
def test_alt_name_attr_subclass_column_inline(self):
# [ticket:2900]
class A(Base):
__tablename__ = 'a'
id = Column('id', Integer, primary_key=True)
data = Column('data')
class ASub(A):
brap = A.data
assert ASub.brap.property is A.data.property
assert isinstance(
ASub.brap.original_property, properties.SynonymProperty)
def test_alt_name_attr_subclass_relationship_inline(self):
# [ticket:2900]
class A(Base):
__tablename__ = 'a'
id = Column('id', Integer, primary_key=True)
b_id = Column(Integer, ForeignKey('b.id'))
b = relationship("B", backref="as_")
class B(Base):
__tablename__ = 'b'
id = Column('id', Integer, primary_key=True)
configure_mappers()
class ASub(A):
brap = A.b
assert ASub.brap.property is A.b.property
assert isinstance(
ASub.brap.original_property, properties.SynonymProperty)
ASub(brap=B())
def test_alt_name_attr_subclass_column_attrset(self):
# [ticket:2900]
class A(Base):
__tablename__ = 'a'
id = Column('id', Integer, primary_key=True)
data = Column('data')
A.brap = A.data
assert A.brap.property is A.data.property
assert isinstance(A.brap.original_property, properties.SynonymProperty)
def test_alt_name_attr_subclass_relationship_attrset(self):
# [ticket:2900]
class A(Base):
__tablename__ = 'a'
id = Column('id', Integer, primary_key=True)
b_id = Column(Integer, ForeignKey('b.id'))
b = relationship("B", backref="as_")
A.brap = A.b
class B(Base):
__tablename__ = 'b'
id = Column('id', Integer, primary_key=True)
assert A.brap.property is A.b.property
assert isinstance(A.brap.original_property, properties.SynonymProperty)
A(brap=B())
def test_eager_order_by(self):
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column('email', String(50))
user_id = Column('user_id', Integer, ForeignKey('users.id'))
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
addresses = relationship('Address', order_by=Address.email)
Base.metadata.create_all()
u1 = User(name='u1', addresses=[Address(email='two'),
Address(email='one')])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).options(joinedload(User.addresses)).all(),
[User(name='u1', addresses=[Address(email='one'),
Address(email='two')])])
def test_order_by_multi(self):
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column('email', String(50))
user_id = Column('user_id', Integer, ForeignKey('users.id'))
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
addresses = relationship('Address',
order_by=(Address.email, Address.id))
Base.metadata.create_all()
u1 = User(name='u1', addresses=[Address(email='two'),
Address(email='one')])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
u = sess.query(User).filter(User.name == 'u1').one()
u.addresses
def test_as_declarative(self):
class User(fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
addresses = relationship('Address', backref='user')
class Address(fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column('email', String(50))
user_id = Column('user_id', Integer, ForeignKey('users.id'))
reg = {}
decl.instrument_declarative(User, reg, Base.metadata)
decl.instrument_declarative(Address, reg, Base.metadata)
Base.metadata.create_all()
u1 = User(name='u1', addresses=[Address(email='one'),
Address(email='two')])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).all(), [
User(
name='u1',
addresses=[Address(email='one'), Address(email='two')])])
def test_custom_mapper_attribute(self):
def mymapper(cls, tbl, **kwargs):
m = sa.orm.mapper(cls, tbl, **kwargs)
m.CHECK = True
return m
base = decl.declarative_base()
class Foo(base):
__tablename__ = 'foo'
__mapper_cls__ = mymapper
id = Column(Integer, primary_key=True)
eq_(Foo.__mapper__.CHECK, True)
def test_custom_mapper_argument(self):
def mymapper(cls, tbl, **kwargs):
m = sa.orm.mapper(cls, tbl, **kwargs)
m.CHECK = True
return m
base = decl.declarative_base(mapper=mymapper)
class Foo(base):
__tablename__ = 'foo'
id = Column(Integer, primary_key=True)
eq_(Foo.__mapper__.CHECK, True)
@testing.emits_warning('Ignoring declarative-like tuple value of '
'attribute id')
def test_oops(self):
def define():
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True),
name = Column('name', String(50))
assert False
assert_raises_message(sa.exc.ArgumentError,
'Mapper Mapper|User|users could not '
'assemble any primary key', define)
def test_table_args_no_dict(self):
class Foo1(Base):
__tablename__ = 'foo'
__table_args__ = ForeignKeyConstraint(['id'], ['foo.bar']),
id = Column('id', Integer, primary_key=True)
bar = Column('bar', Integer)
assert Foo1.__table__.c.id.references(Foo1.__table__.c.bar)
def test_table_args_type(self):
def err():
class Foo1(Base):
__tablename__ = 'foo'
__table_args__ = ForeignKeyConstraint(['id'], ['foo.id'
])
id = Column('id', Integer, primary_key=True)
assert_raises_message(sa.exc.ArgumentError,
'__table_args__ value must be a tuple, ', err)
def test_table_args_none(self):
class Foo2(Base):
__tablename__ = 'foo'
__table_args__ = None
id = Column('id', Integer, primary_key=True)
assert Foo2.__table__.kwargs == {}
def test_table_args_dict_format(self):
class Foo2(Base):
__tablename__ = 'foo'
__table_args__ = {'mysql_engine': 'InnoDB'}
id = Column('id', Integer, primary_key=True)
assert Foo2.__table__.kwargs['mysql_engine'] == 'InnoDB'
def test_table_args_tuple_format(self):
class Foo2(Base):
__tablename__ = 'foo'
__table_args__ = {'mysql_engine': 'InnoDB'}
id = Column('id', Integer, primary_key=True)
class Bar(Base):
__tablename__ = 'bar'
__table_args__ = ForeignKeyConstraint(['id'], ['foo.id']), \
{'mysql_engine': 'InnoDB'}
id = Column('id', Integer, primary_key=True)
assert Bar.__table__.c.id.references(Foo2.__table__.c.id)
assert Bar.__table__.kwargs['mysql_engine'] == 'InnoDB'
def test_expression(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
addresses = relationship('Address', backref='user')
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column('email', String(50))
user_id = Column('user_id', Integer, ForeignKey('users.id'))
User.address_count = \
sa.orm.column_property(sa.select([sa.func.count(Address.id)]).
where(Address.user_id
== User.id).as_scalar())
Base.metadata.create_all()
u1 = User(name='u1', addresses=[Address(email='one'),
Address(email='two')])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).all(), [
User(name='u1', address_count=2,
addresses=[Address(email='one'), Address(email='two')])])
def test_useless_declared_attr(self):
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column('email', String(50))
user_id = Column('user_id', Integer, ForeignKey('users.id'))
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
addresses = relationship('Address', backref='user')
@declared_attr
def address_count(cls):
# this doesn't really gain us anything. but if
# one is used, lets have it function as expected...
return sa.orm.column_property(
sa.select([sa.func.count(Address.id)]).
where(Address.user_id == cls.id))
Base.metadata.create_all()
u1 = User(name='u1', addresses=[Address(email='one'),
Address(email='two')])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).all(), [
User(name='u1', address_count=2,
addresses=[Address(email='one'), Address(email='two')])])
def test_declared_on_base_class(self):
class MyBase(Base):
__tablename__ = 'foo'
id = Column(Integer, primary_key=True)
@declared_attr
def somecol(cls):
return Column(Integer)
class MyClass(MyBase):
__tablename__ = 'bar'
id = Column(Integer, ForeignKey('foo.id'), primary_key=True)
# previously, the 'somecol' declared_attr would be ignored
# by the mapping and would remain unused. now we take
# it as part of MyBase.
assert 'somecol' in MyBase.__table__.c
assert 'somecol' not in MyClass.__table__.c
def test_column(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
User.a = Column('a', String(10))
User.b = Column(String(10))
Base.metadata.create_all()
u1 = User(name='u1', a='a', b='b')
eq_(u1.a, 'a')
eq_(User.a.get_history(u1), (['a'], (), ()))
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).all(), [User(name='u1', a='a', b='b')])
def test_column_properties(self):
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column(String(50))
user_id = Column(Integer, ForeignKey('users.id'))
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
adr_count = \
sa.orm.column_property(
sa.select([sa.func.count(Address.id)],
Address.user_id == id).as_scalar())
addresses = relationship(Address)
Base.metadata.create_all()
u1 = User(name='u1', addresses=[Address(email='one'),
Address(email='two')])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).all(), [
User(name='u1', adr_count=2,
addresses=[Address(email='one'), Address(email='two')])])
def test_column_properties_2(self):
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True)
email = Column(String(50))
user_id = Column(Integer, ForeignKey('users.id'))
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True)
name = Column('name', String(50))
# this is not "valid" but we want to test that Address.id
# doesn't get stuck into user's table
adr_count = Address.id
eq_(set(User.__table__.c.keys()), set(['id', 'name']))
eq_(set(Address.__table__.c.keys()), set(['id', 'email',
'user_id']))
def test_deferred(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
name = sa.orm.deferred(Column(String(50)))
Base.metadata.create_all()
sess = create_session()
sess.add(User(name='u1'))
sess.flush()
sess.expunge_all()
u1 = sess.query(User).filter(User.name == 'u1').one()
assert 'name' not in u1.__dict__
def go():
eq_(u1.name, 'u1')
self.assert_sql_count(testing.db, go, 1)
def test_composite_inline(self):
class AddressComposite(fixtures.ComparableEntity):
def __init__(self, street, state):
self.street = street
self.state = state
def __composite_values__(self):
return [self.street, self.state]
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'user'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
address = composite(AddressComposite,
Column('street', String(50)),
Column('state', String(2)),
)
Base.metadata.create_all()
sess = Session()
sess.add(User(
address=AddressComposite('123 anywhere street',
'MD')
))
sess.commit()
eq_(
sess.query(User).all(),
[User(address=AddressComposite('123 anywhere street',
'MD'))]
)
def test_composite_separate(self):
class AddressComposite(fixtures.ComparableEntity):
def __init__(self, street, state):
self.street = street
self.state = state
def __composite_values__(self):
return [self.street, self.state]
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'user'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
street = Column(String(50))
state = Column(String(2))
address = composite(AddressComposite,
street, state)
Base.metadata.create_all()
sess = Session()
sess.add(User(
address=AddressComposite('123 anywhere street',
'MD')
))
sess.commit()
eq_(
sess.query(User).all(),
[User(address=AddressComposite('123 anywhere street',
'MD'))]
)
def test_mapping_to_join(self):
users = Table('users', Base.metadata,
Column('id', Integer, primary_key=True)
)
addresses = Table('addresses', Base.metadata,
Column('id', Integer, primary_key=True),
Column('user_id', Integer, ForeignKey('users.id'))
)
usersaddresses = sa.join(users, addresses, users.c.id
== addresses.c.user_id)
class User(Base):
__table__ = usersaddresses
__table_args__ = {'primary_key': [users.c.id]}
# need to use column_property for now
user_id = column_property(users.c.id, addresses.c.user_id)
address_id = addresses.c.id
assert User.__mapper__.get_property('user_id').columns[0] \
is users.c.id
assert User.__mapper__.get_property('user_id').columns[1] \
is addresses.c.user_id
def test_synonym_inline(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
_name = Column('name', String(50))
def _set_name(self, name):
self._name = 'SOMENAME ' + name
def _get_name(self):
return self._name
name = sa.orm.synonym('_name',
descriptor=property(_get_name,
_set_name))
Base.metadata.create_all()
sess = create_session()
u1 = User(name='someuser')
eq_(u1.name, 'SOMENAME someuser')
sess.add(u1)
sess.flush()
eq_(sess.query(User).filter(User.name == 'SOMENAME someuser'
).one(), u1)
def test_synonym_no_descriptor(self):
from sqlalchemy.orm.properties import ColumnProperty
class CustomCompare(ColumnProperty.Comparator):
__hash__ = None
def __eq__(self, other):
return self.__clause_element__() == other + ' FOO'
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
_name = Column('name', String(50))
name = sa.orm.synonym('_name',
comparator_factory=CustomCompare)
Base.metadata.create_all()
sess = create_session()
u1 = User(name='someuser FOO')
sess.add(u1)
sess.flush()
eq_(sess.query(User).filter(User.name == 'someuser').one(), u1)
def test_synonym_added(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
_name = Column('name', String(50))
def _set_name(self, name):
self._name = 'SOMENAME ' + name
def _get_name(self):
return self._name
name = property(_get_name, _set_name)
User.name = sa.orm.synonym('_name', descriptor=User.name)
Base.metadata.create_all()
sess = create_session()
u1 = User(name='someuser')
eq_(u1.name, 'SOMENAME someuser')
sess.add(u1)
sess.flush()
eq_(sess.query(User).filter(User.name == 'SOMENAME someuser'
).one(), u1)
def test_reentrant_compile_via_foreignkey(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
addresses = relationship('Address', backref='user')
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column('email', String(50))
user_id = Column('user_id', Integer, ForeignKey(User.id))
# previous versions would force a re-entrant mapper compile via
# the User.id inside the ForeignKey but this is no longer the
# case
sa.orm.configure_mappers()
eq_(
list(Address.user_id.property.columns[0].foreign_keys)[0].column,
User.__table__.c.id
)
Base.metadata.create_all()
u1 = User(name='u1', addresses=[Address(email='one'),
Address(email='two')])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).all(), [
User(name='u1',
addresses=[Address(email='one'), Address(email='two')])])
def test_relationship_reference(self):
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column('email', String(50))
user_id = Column('user_id', Integer, ForeignKey('users.id'))
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
addresses = relationship('Address', backref='user',
primaryjoin=id == Address.user_id)
User.address_count = \
sa.orm.column_property(sa.select([sa.func.count(Address.id)]).
where(Address.user_id
== User.id).as_scalar())
Base.metadata.create_all()
u1 = User(name='u1', addresses=[Address(email='one'),
Address(email='two')])
sess = create_session()
sess.add(u1)
sess.flush()
sess.expunge_all()
eq_(sess.query(User).all(), [
User(name='u1', address_count=2,
addresses=[Address(email='one'), Address(email='two')])])
def test_pk_with_fk_init(self):
class Bar(Base):
__tablename__ = 'bar'
id = sa.Column(sa.Integer, sa.ForeignKey('foo.id'),
primary_key=True)
ex = sa.Column(sa.Integer, primary_key=True)
class Foo(Base):
__tablename__ = 'foo'
id = sa.Column(sa.Integer, primary_key=True)
bars = sa.orm.relationship(Bar)
assert Bar.__mapper__.primary_key[0] is Bar.__table__.c.id
assert Bar.__mapper__.primary_key[1] is Bar.__table__.c.ex
def test_with_explicit_autoloaded(self):
meta = MetaData(testing.db)
t1 = Table(
't1', meta,
Column('id', String(50),
primary_key=True, test_needs_autoincrement=True),
Column('data', String(50)))
meta.create_all()
try:
class MyObj(Base):
__table__ = Table('t1', Base.metadata, autoload=True)
sess = create_session()
m = MyObj(id='someid', data='somedata')
sess.add(m)
sess.flush()
eq_(t1.select().execute().fetchall(), [('someid', 'somedata'
)])
finally:
meta.drop_all()
def test_synonym_for(self):
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
@decl.synonym_for('name')
@property
def namesyn(self):
return self.name
Base.metadata.create_all()
sess = create_session()
u1 = User(name='someuser')
eq_(u1.name, 'someuser')
eq_(u1.namesyn, 'someuser')
sess.add(u1)
sess.flush()
rt = sess.query(User).filter(User.namesyn == 'someuser').one()
eq_(rt, u1)
def test_comparable_using(self):
class NameComparator(sa.orm.PropComparator):
@property
def upperself(self):
cls = self.prop.parent.class_
col = getattr(cls, 'name')
return sa.func.upper(col)
def operate(
self,
op,
other,
**kw
):
return op(self.upperself, other, **kw)
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column('id', Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column('name', String(50))
@decl.comparable_using(NameComparator)
@property
def uc_name(self):
return self.name is not None and self.name.upper() \
or None
Base.metadata.create_all()
sess = create_session()
u1 = User(name='someuser')
eq_(u1.name, 'someuser', u1.name)
eq_(u1.uc_name, 'SOMEUSER', u1.uc_name)
sess.add(u1)
sess.flush()
sess.expunge_all()
rt = sess.query(User).filter(User.uc_name == 'SOMEUSER').one()
eq_(rt, u1)
sess.expunge_all()
rt = sess.query(User).filter(User.uc_name.startswith('SOMEUSE'
)).one()
eq_(rt, u1)
def test_duplicate_classes_in_base(self):
class Test(Base):
__tablename__ = 'a'
id = Column(Integer, primary_key=True)
assert_raises_message(
sa.exc.SAWarning,
"This declarative base already contains a class with ",
lambda: type(Base)("Test", (Base,), dict(
__tablename__='b',
id=Column(Integer, primary_key=True)
))
)
@testing.teardown_events(MapperEvents)
def test_instrument_class_before_instrumentation(self):
# test #3388
canary = mock.Mock()
@event.listens_for(mapper, "instrument_class")
def instrument_class(mp, cls):
canary.instrument_class(mp, cls)
@event.listens_for(object, "class_instrument")
def class_instrument(cls):
canary.class_instrument(cls)
class Test(Base):
__tablename__ = 'test'
id = Column(Integer, primary_key=True)
# MARKMARK
eq_(
canary.mock_calls,
[
mock.call.instrument_class(Test.__mapper__, Test),
mock.call.class_instrument(Test)
]
)
def _produce_test(inline, stringbased):
class ExplicitJoinTest(fixtures.MappedTest):
@classmethod
def define_tables(cls, metadata):
global User, Address
Base = decl.declarative_base(metadata=metadata)
class User(Base, fixtures.ComparableEntity):
__tablename__ = 'users'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
name = Column(String(50))
class Address(Base, fixtures.ComparableEntity):
__tablename__ = 'addresses'
id = Column(Integer, primary_key=True,
test_needs_autoincrement=True)
email = Column(String(50))
user_id = Column(Integer, ForeignKey('users.id'))
if inline:
if stringbased:
user = relationship(
'User',
primaryjoin='User.id==Address.user_id',
backref='addresses')
else:
user = relationship(User, primaryjoin=User.id
== user_id, backref='addresses')
if not inline:
configure_mappers()
if stringbased:
Address.user = relationship(
'User',
primaryjoin='User.id==Address.user_id',
backref='addresses')
else:
Address.user = relationship(
User,
primaryjoin=User.id == Address.user_id,
backref='addresses')
@classmethod
def insert_data(cls):
params = [
dict(list(zip(('id', 'name'), column_values)))
for column_values in [
(7, 'jack'), (8, 'ed'),
(9, 'fred'), (10, 'chuck')]]
User.__table__.insert().execute(params)
Address.__table__.insert().execute([
dict(list(zip(('id', 'user_id', 'email'), column_values)))
for column_values in [
(1, 7, 'jack@bean.com'),
(2, 8, 'ed@wood.com'),
(3, 8, 'ed@bettyboop.com'),
(4, 8, 'ed@lala.com'), (5, 9, 'fred@fred.com')]])
def test_aliased_join(self):
# this query will screw up if the aliasing enabled in
# query.join() gets applied to the right half of the join
# condition inside the any(). the join condition inside of
# any() comes from the "primaryjoin" of the relationship,
# and should not be annotated with _orm_adapt.
# PropertyLoader.Comparator will annotate the left side with
# _orm_adapt, though.
sess = create_session()
eq_(sess.query(User).join(User.addresses,
aliased=True).filter(
Address.email == 'ed@wood.com').filter(
User.addresses.any(Address.email == 'jack@bean.com')).all(),
[])
ExplicitJoinTest.__name__ = 'ExplicitJoinTest%s%s' % (
inline and 'Inline' or 'Separate',
stringbased and 'String' or 'Literal')
return ExplicitJoinTest
for inline in True, False:
for stringbased in True, False:
testclass = _produce_test(inline, stringbased)
exec('%s = testclass' % testclass.__name__)
del testclass
|