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import sqlalchemy as sa
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy_utils import get_columns
class TestGetColumns(object):
def setup_method(self, method):
Base = declarative_base()
class Building(Base):
__tablename__ = 'building'
id = sa.Column('_id', sa.Integer, primary_key=True)
name = sa.Column('_name', sa.Unicode(255))
self.Building = Building
def test_table(self):
assert isinstance(
get_columns(self.Building.__table__),
sa.sql.base.ImmutableColumnCollection
)
def test_declarative_class(self):
assert isinstance(
get_columns(self.Building),
sa.util._collections.OrderedProperties
)
def test_declarative_object(self):
assert isinstance(
get_columns(self.Building()),
sa.util._collections.OrderedProperties
)
def test_mapper(self):
assert isinstance(
get_columns(self.Building.__mapper__),
sa.util._collections.OrderedProperties
)
def test_class_alias(self):
assert isinstance(
get_columns(sa.orm.aliased(self.Building)),
sa.util._collections.OrderedProperties
)
def test_table_alias(self):
alias = sa.orm.aliased(self.Building.__table__)
assert isinstance(
get_columns(alias),
sa.sql.base.ImmutableColumnCollection
)
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