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import sqlalchemy as sa
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy_utils import has_changes
class HasChangesTestCase(object):
def setup_method(self, method):
Base = declarative_base()
class Article(Base):
__tablename__ = 'article_translation'
id = sa.Column(sa.Integer, primary_key=True)
title = sa.Column(sa.String(100))
self.Article = Article
class TestHasChangesWithStringAttr(HasChangesTestCase):
def test_without_changed_attr(self):
article = self.Article()
assert not has_changes(article, 'title')
def test_with_changed_attr(self):
article = self.Article(title='Some title')
assert has_changes(article, 'title')
class TestHasChangesWithMultipleAttrs(HasChangesTestCase):
def test_without_changed_attr(self):
article = self.Article()
assert not has_changes(article, ['title'])
def test_with_changed_attr(self):
article = self.Article(title='Some title')
assert has_changes(article, ['title', 'id'])
class TestHasChangesWithExclude(HasChangesTestCase):
def test_without_changed_attr(self):
article = self.Article()
assert not has_changes(article, exclude=['id'])
def test_with_changed_attr(self):
article = self.Article(title='Some title')
assert has_changes(article, exclude=['id'])
assert not has_changes(article, exclude=['title'])
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