def test_different_bases(self):
engine = create_engine('sqlite://')
metadata = MetaData()
class MyMeta(DeclarativeMeta):
pass
b1 = declarative_base(bind=engine)
b2 = declarative_base(metadata=metadata)
b3 = declarative_base(metaclass=MyMeta)
self.assertFalse(b1 is b2)
self.assertFalse(b1 is b3)
self.assertFalse(b2 is b3)
self.assertTrue(b1.metadata.bind is engine)
self.assertFalse(b2.metadata.bind is engine)
self.assertFalse(b3.metadata.bind is engine)
self.assertFalse(b1.metadata is metadata)
self.assertTrue(b2.metadata is metadata)
self.assertFalse(b3.metadata is metadata)
self.assertFalse(isinstance(b1, MyMeta))
self.assertFalse(isinstance(b2, MyMeta))
self.assertTrue(isinstance(b3, MyMeta))
def test_different_bases(self):
engine = create_engine('sqlite://')
metadata = MetaData()
class MyMeta(DeclarativeMeta):
pass
b1 = declarative_base(bind=engine)
b2 = declarative_base(metadata=metadata)
b3 = declarative_base(metaclass=MyMeta)
self.assertFalse(b1 is b2)
self.assertFalse(b1 is b3)
self.assertFalse(b2 is b3)
self.assertTrue(b1.metadata.bind is engine)
self.assertFalse(b2.metadata.bind is engine)
self.assertFalse(b3.metadata.bind is engine)
self.assertFalse(b1.metadata is metadata)
self.assertTrue(b2.metadata is metadata)
self.assertFalse(b3.metadata is metadata)
self.assertFalse(isinstance(b1,MyMeta))
self.assertFalse(isinstance(b2,MyMeta))
self.assertTrue(isinstance(b3,MyMeta))
def test_context_manager(self):
b1 = declarative_base()
with TestingBase():
b2 = declarative_base()
b3 = declarative_base()
# checks
self.failIf(b1 is b2)
self.failIf(b3 is b2)
self.failUnless(b1 is b3)
def test_context_manager(self):
b1 = declarative_base()
with TestingBase():
b2 = declarative_base()
b3 = declarative_base()
# checks
self.failIf(b1 is b2)
self.failIf(b3 is b2)
self.failUnless(b1 is b3)
def test_parameters_metadata(self):
metadata = MetaData()
b1 = declarative_base(metadata=metadata)
b2 = declarative_base(metadata=metadata)
self.assertTrue(b1 is b2)
self.assertTrue(b1.metadata is metadata)
self.assertTrue(b2.metadata is metadata)
def test_parameters_metadata(self):
metadata = MetaData()
b1 = declarative_base(metadata=metadata)
b2 = declarative_base(metadata=metadata)
self.assertTrue(b1 is b2)
self.assertTrue(b1.metadata is metadata)
self.assertTrue(b2.metadata is metadata)
def test_parameters_engine(self):
engine = create_engine('sqlite://')
b1 = declarative_base(bind=engine)
b2 = declarative_base(bind=engine)
self.assertTrue(b1 is b2)
self.assertTrue(b1.metadata.bind is engine)
self.assertTrue(b2.metadata.bind is engine)
def test_parameters_engine(self):
engine = create_engine('sqlite://')
b1 = declarative_base(bind=engine)
b2 = declarative_base(bind=engine)
self.assertTrue(b1 is b2)
self.assertTrue(b1.metadata.bind is engine)
self.assertTrue(b2.metadata.bind is engine)
def test_context_manager(self):
b1 = declarative_base()
with TestingBase():
b2 = declarative_base()
b3 = declarative_base()
# checks
self.assertFalse(b1 is b2)
self.assertFalse(b3 is b2)
self.assertTrue(b1 is b3)
def test_arguments(self):
# the first parameter to declarative_base :-)
engine = object()
if PY2:
text = 'declarative_base() takes exactly 0 arguments (1 given)'
else:
text = 'declarative_base() takes 0 positional arguments but 1 was given'
with ShouldRaise(TypeError(text)):
declarative_base(engine)
def test_manual(self):
b1 = declarative_base()
tb = TestingBase()
b2 = declarative_base()
tb.restore()
b3 = declarative_base()
# checks
self.assertFalse(b1 is b2)
self.assertFalse(b3 is b2)
self.assertTrue(b1 is b3)
def test_manual(self):
b1 = declarative_base()
tb = TestingBase()
b2 = declarative_base()
tb.restore()
b3 = declarative_base()
# checks
self.failIf(b1 is b2)
self.failIf(b3 is b2)
self.failUnless(b1 is b3)
def test_parameters_metaclass(self):
class MyMeta(DeclarativeMeta):
pass
b1 = declarative_base(metaclass=MyMeta)
b2 = declarative_base(metaclass=MyMeta)
self.assertTrue(b1 is b2)
self.assertTrue(isinstance(b1, MyMeta))
self.assertTrue(isinstance(b2, MyMeta))
def test_manual(self):
b1 = declarative_base()
tb = TestingBase()
b2 = declarative_base()
tb.restore()
b3 = declarative_base()
# checks
self.failIf(b1 is b2)
self.failIf(b3 is b2)
self.failUnless(b1 is b3)
def test_parameters_metaclass(self):
class MyMeta(DeclarativeMeta):
pass
b1 = declarative_base(metaclass=MyMeta)
b2 = declarative_base(metaclass=MyMeta)
self.assertTrue(b1 is b2)
self.assertTrue(isinstance(b1,MyMeta))
self.assertTrue(isinstance(b2,MyMeta))
def test_arguments(self):
# the first parameter to declarative_base :-)
engine = object()
if PY2:
text = 'declarative_base() takes exactly 0 arguments (1 given)'
else:
text = 'declarative_base() takes 0 positional arguments but 1 was given'
with ShouldRaise(TypeError(text)):
declarative_base(engine)
def test_existing_base(self):
base = object()
self.r.replace('mortar_rdb._bases', {(): base})
self.assertTrue(base is declarative_base())
def test_first_call(self):
self.r.replace('mortar_rdb._bases', {})
b1 = declarative_base()
b2 = declarative_base()
self.assertTrue(isinstance(b1, DeclarativeMeta))
self.assertTrue(b1 is b2)
from mortar_rdb import declarative_base
from .common import Common
Base = declarative_base()
"""
class Requirement(Base,Common):
id = Column(Integer, primary_key=True)
text =
"""
def test_existing_base(self):
base = object()
self.r.replace('mortar_rdb._bases',{():base})
self.assertTrue(base is declarative_base())
def test_first_call(self):
self.r.replace('mortar_rdb._bases',{})
b1 = declarative_base()
b2 = declarative_base()
self.assertTrue(isinstance(b1,DeclarativeMeta))
self.assertTrue(b1 is b2)
