815f07d6c1
Also: Allow override of database name and user in tests (important for me as I would have to mess with my PSQL and MySQL database users otherwise) Use dict.items instead of six.iteritems as it sporadically caused RuntimeError: dictionary changed size during iteration in Python 2.6 tests. Fix typo DNS to DSN Adds Python 3.5 to tox.ini Added an .editorconfig Import babel.dates in sqlalchemy_utils.i18n as an exception would be raised when using the latest versions of babel.
82 lines
2.0 KiB
Python
82 lines
2.0 KiB
Python
import pytest
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import sqlalchemy as sa
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from sqlalchemy_utils.aggregates import aggregated
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@pytest.fixture
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def User(Base):
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user_group = sa.Table(
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'user_group',
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Base.metadata,
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sa.Column('user_id', sa.Integer, sa.ForeignKey('user.id')),
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sa.Column('group_id', sa.Integer, sa.ForeignKey('group.id'))
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)
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class User(Base):
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__tablename__ = 'user'
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id = sa.Column(sa.Integer, primary_key=True)
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name = sa.Column(sa.Unicode(255))
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@aggregated('groups', sa.Column(sa.Integer, default=0))
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def group_count(self):
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return sa.func.count('1')
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groups = sa.orm.relationship(
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'Group',
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backref='users',
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secondary=user_group
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)
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return User
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@pytest.fixture
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def Group(Base):
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class Group(Base):
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__tablename__ = 'group'
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id = sa.Column(sa.Integer, primary_key=True)
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name = sa.Column(sa.Unicode(255))
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return Group
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@pytest.fixture
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def init_models(User, Group):
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pass
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@pytest.mark.usefixtures('postgresql_dsn')
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class TestAggregatesWithManyToManyRelationships(object):
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def test_assigns_aggregates_on_insert(self, session, User, Group):
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user = User(
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name=u'John Matrix'
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)
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session.add(user)
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session.commit()
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group = Group(
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name=u'Some group',
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users=[user]
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)
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session.add(group)
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session.commit()
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session.refresh(user)
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assert user.group_count == 1
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def test_updates_aggregates_on_delete(self, session, User, Group):
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user = User(
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name=u'John Matrix'
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)
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session.add(user)
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session.commit()
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group = Group(
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name=u'Some group',
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users=[user]
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)
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session.add(group)
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session.commit()
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session.refresh(user)
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user.groups = []
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session.commit()
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session.refresh(user)
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assert user.group_count == 0
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