Files
deb-python-sqlalchemy-utils/tests/functions/test_get_tables.py
Jacob Magnusson 815f07d6c1 Use pytest fixtures to reduce complexity and repetition
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.
2016-01-19 10:52:30 +01:00

87 lines
2.3 KiB
Python

import pytest
import sqlalchemy as sa
from sqlalchemy_utils import get_tables
@pytest.fixture
def TextItem(Base):
class TextItem(Base):
__tablename__ = 'text_item'
id = sa.Column(sa.Integer, primary_key=True)
name = sa.Column(sa.Unicode(255))
type = sa.Column(sa.Unicode(255))
__mapper_args__ = {
'polymorphic_on': type,
'with_polymorphic': '*'
}
return TextItem
@pytest.fixture
def Article(TextItem):
class Article(TextItem):
__tablename__ = 'article'
id = sa.Column(
sa.Integer, sa.ForeignKey(TextItem.id), primary_key=True
)
__mapper_args__ = {
'polymorphic_identity': u'article'
}
return Article
@pytest.fixture
def init_models(TextItem, Article):
pass
class TestGetTables(object):
def test_child_class_using_join_table_inheritance(self, TextItem, Article):
assert get_tables(Article) == [
TextItem.__table__,
Article.__table__
]
def test_entity_using_with_polymorphic(self, TextItem, Article):
assert get_tables(TextItem) == [
TextItem.__table__,
Article.__table__
]
def test_instrumented_attribute(self, TextItem):
assert get_tables(TextItem.name) == [
TextItem.__table__,
]
def test_polymorphic_instrumented_attribute(self, TextItem, Article):
assert get_tables(Article.id) == [
TextItem.__table__,
Article.__table__
]
def test_column(self, Article):
assert get_tables(Article.__table__.c.id) == [
Article.__table__
]
def test_mapper_entity_with_class(self, session, TextItem, Article):
query = session.query(Article)
assert get_tables(query._entities[0]) == [
TextItem.__table__, Article.__table__
]
def test_mapper_entity_with_mapper(self, session, TextItem, Article):
query = session.query(sa.inspect(Article))
assert get_tables(query._entities[0]) == [
TextItem.__table__, Article.__table__
]
def test_column_entity(self, session, TextItem, Article):
query = session.query(Article.id)
assert get_tables(query._entities[0]) == [
TextItem.__table__, Article.__table__
]