Files
deb-python-sqlalchemy-utils/tests/functions/test_make_order_by_deterministic.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

103 lines
3.4 KiB
Python

import pytest
import sqlalchemy as sa
from sqlalchemy_utils.functions.sort_query import make_order_by_deterministic
from .. import assert_contains
@pytest.fixture
def Article(Base):
class Article(Base):
__tablename__ = 'article'
id = sa.Column(sa.Integer, primary_key=True)
author_id = sa.Column(sa.Integer, sa.ForeignKey('user.id'))
author = sa.orm.relationship('User')
return Article
@pytest.fixture
def User(Base, Article):
class User(Base):
__tablename__ = 'user'
id = sa.Column(sa.Integer, primary_key=True)
name = sa.Column(sa.Unicode)
email = sa.Column(sa.Unicode, unique=True)
email_lower = sa.orm.column_property(
sa.func.lower(name)
)
User.article_count = sa.orm.column_property(
sa.select([sa.func.count()], from_obj=Article)
.where(Article.author_id == User.id)
.label('article_count')
)
return User
@pytest.fixture
def init_models(Article, User):
pass
class TestMakeOrderByDeterministic(object):
def test_column_property(self, session, User):
query = session.query(User).order_by(User.email_lower)
query = make_order_by_deterministic(query)
assert_contains('lower("user".name), "user".id ASC', query)
def test_unique_column(self, session, User):
query = session.query(User).order_by(User.email)
query = make_order_by_deterministic(query)
assert str(query).endswith('ORDER BY "user".email')
def test_non_unique_column(self, session, User):
query = session.query(User).order_by(User.name)
query = make_order_by_deterministic(query)
assert_contains('ORDER BY "user".name, "user".id ASC', query)
def test_descending_order_by(self, session, User):
query = session.query(User).order_by(
sa.desc(User.name)
)
query = make_order_by_deterministic(query)
assert_contains('ORDER BY "user".name DESC, "user".id DESC', query)
def test_ascending_order_by(self, session, User):
query = session.query(User).order_by(
sa.asc(User.name)
)
query = make_order_by_deterministic(query)
assert_contains('ORDER BY "user".name ASC, "user".id ASC', query)
def test_string_order_by(self, session, User):
query = session.query(User).order_by('name')
query = make_order_by_deterministic(query)
assert_contains('ORDER BY "user".name, "user".id ASC', query)
def test_annotated_label(self, session, User):
query = session.query(User).order_by(User.article_count)
query = make_order_by_deterministic(query)
assert_contains('article_count, "user".id ASC', query)
def test_annotated_label_with_descending_order(self, session, User):
query = session.query(User).order_by(
sa.desc(User.article_count)
)
query = make_order_by_deterministic(query)
assert_contains('ORDER BY article_count DESC, "user".id DESC', query)
def test_query_without_order_by(self, session, User):
query = session.query(User)
query = make_order_by_deterministic(query)
assert 'ORDER BY "user".id' in str(query)
def test_alias(self, session, User):
alias = sa.orm.aliased(User.__table__)
query = session.query(alias).order_by(alias.c.name)
query = make_order_by_deterministic(query)
assert str(query).endswith('ORDER BY user_1.name, "user".id ASC')