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import pytest
import sqlalchemy as sa
from sqlalchemy_utils import get_columns
@pytest.fixture
def Building(Base):
class Building(Base):
__tablename__ = 'building'
id = sa.Column('_id', sa.Integer, primary_key=True)
name = sa.Column('_name', sa.Unicode(255))
return Building
@pytest.fixture
def columns():
return ['_id', '_name']
class TestGetColumns:
def test_table(self, Building, columns):
assert [c.name for c in get_columns(Building.__table__)] == columns
def test_instrumented_attribute(self, Building):
assert get_columns(Building.id) == [Building.__table__.c._id]
def test_column_property(self, Building):
assert get_columns(Building.id.property) == [
Building.__table__.c._id
]
def test_column(self, Building):
assert get_columns(Building.__table__.c._id) == [
Building.__table__.c._id
]
def test_declarative_class(self, Building, columns):
assert [c.name for c in get_columns(Building).values()] == columns
def test_declarative_object(self, Building, columns):
assert [c.name for c in get_columns(Building()).values()] == columns
def test_mapper(self, Building, columns):
assert [
c.name for c in get_columns(Building.__mapper__).values()
] == columns
def test_class_alias(self, Building, columns):
assert [
c.name for c in get_columns(sa.orm.aliased(Building)).values()
] == columns
def test_table_alias(self, Building, columns):
alias = sa.orm.aliased(Building.__table__)
assert [c.name for c in get_columns(alias).values()] == columns
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