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.
135 lines
3.6 KiB
Python
135 lines
3.6 KiB
Python
import pytest
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import sqlalchemy as sa
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from flexmock import flexmock
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from sqlalchemy_utils import proxy_dict, ProxyDict
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@pytest.fixture
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def ArticleTranslation(Base):
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class ArticleTranslation(Base):
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__tablename__ = 'article_translation'
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id = sa.Column(
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sa.Integer,
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sa.ForeignKey('article.id'),
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autoincrement=True,
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primary_key=True
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)
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locale = sa.Column(sa.String(10), primary_key=True)
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name = sa.Column(sa.UnicodeText)
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return ArticleTranslation
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@pytest.fixture
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def Article(Base, ArticleTranslation):
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class Article(Base):
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__tablename__ = 'article'
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id = sa.Column(sa.Integer, autoincrement=True, primary_key=True)
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description = sa.Column(sa.UnicodeText)
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_translations = sa.orm.relationship(
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ArticleTranslation,
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lazy='dynamic',
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cascade='all, delete-orphan',
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passive_deletes=True,
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backref=sa.orm.backref('parent'),
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)
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@property
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def translations(self):
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return proxy_dict(
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self,
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'_translations',
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ArticleTranslation.locale
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)
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return Article
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@pytest.fixture
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def init_models(ArticleTranslation, Article):
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pass
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class TestProxyDict(object):
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def test_access_key_for_pending_parent(self, session, Article):
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article = Article()
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session.add(article)
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assert article.translations['en']
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def test_access_key_for_transient_parent(self, Article):
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article = Article()
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assert article.translations['en']
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def test_cache(self, session, Article):
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article = Article()
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(
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flexmock(ProxyDict)
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.should_receive('fetch')
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.once()
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)
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session.add(article)
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session.commit()
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article.translations['en']
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article.translations['en']
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def test_set_updates_cache(self, session, Article, ArticleTranslation):
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article = Article()
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(
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flexmock(ProxyDict)
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.should_receive('fetch')
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.once()
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)
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session.add(article)
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session.commit()
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article.translations['en']
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article.translations['en'] = ArticleTranslation(
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locale='en',
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name=u'something'
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)
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article.translations['en']
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def test_contains_efficiency(self, connection, session, Article):
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article = Article()
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session.add(article)
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session.commit()
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article.id
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query_count = connection.query_count
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'en' in article.translations
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'en' in article.translations
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'en' in article.translations
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assert connection.query_count == query_count + 1
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def test_getitem_with_none_value_in_cache(self, session, Article):
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article = Article()
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session.add(article)
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session.commit()
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article.id
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'en' in article.translations
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assert article.translations['en']
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def test_contains(self, Article):
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article = Article()
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assert 'en' not in article.translations
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# does not auto-append new translation
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assert 'en' not in article.translations
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def test_committing_session_empties_proxy_dict_cache(
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self,
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session,
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Article
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):
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article = Article()
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(
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flexmock(ProxyDict)
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.should_receive('fetch')
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.twice()
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)
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session.add(article)
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session.commit()
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article.translations['en']
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session.commit()
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article.translations['en']
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