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.
150 lines
5.2 KiB
Python
150 lines
5.2 KiB
Python
import pytest
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import sqlalchemy as sa
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from sqlalchemy_utils import get_fk_constraint_for_columns, has_unique_index
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class TestHasUniqueIndex(object):
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@pytest.fixture
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def articles(self, Base):
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class Article(Base):
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__tablename__ = 'article'
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id = sa.Column(sa.Integer, primary_key=True)
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return Article.__table__
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@pytest.fixture
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def article_translations(self, Base):
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class ArticleTranslation(Base):
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__tablename__ = 'article_translation'
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id = sa.Column(sa.Integer, primary_key=True)
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locale = sa.Column(sa.String(10), primary_key=True)
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title = sa.Column(sa.String(100))
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is_published = sa.Column(sa.Boolean, index=True)
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is_deleted = sa.Column(sa.Boolean, unique=True)
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is_archived = sa.Column(sa.Boolean)
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__table_args__ = (
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sa.Index('my_index', is_archived, is_published, unique=True),
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)
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return ArticleTranslation.__table__
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def test_primary_key(self, articles):
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assert has_unique_index(articles.c.id)
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def test_column_of_aliased_table(self, articles):
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alias = sa.orm.aliased(articles)
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with pytest.raises(TypeError):
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assert has_unique_index(alias.c.id)
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def test_unique_index(self, article_translations):
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assert has_unique_index(article_translations.c.is_deleted)
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def test_compound_primary_key(self, article_translations):
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assert not has_unique_index(article_translations.c.id)
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assert not has_unique_index(article_translations.c.locale)
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def test_single_column_index(self, article_translations):
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assert not has_unique_index(article_translations.c.is_published)
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def test_compound_column_unique_index(self, article_translations):
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assert not has_unique_index(article_translations.c.is_published)
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assert not has_unique_index(article_translations.c.is_archived)
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class TestHasUniqueIndexWithFKConstraint(object):
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def test_composite_fk_without_index(self, Base):
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class User(Base):
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__tablename__ = 'user'
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first_name = sa.Column(sa.Unicode(255), primary_key=True)
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last_name = sa.Column(sa.Unicode(255), primary_key=True)
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class Article(Base):
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__tablename__ = 'article'
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id = sa.Column(sa.Integer, primary_key=True)
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author_first_name = sa.Column(sa.Unicode(255))
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author_last_name = sa.Column(sa.Unicode(255))
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__table_args__ = (
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sa.ForeignKeyConstraint(
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[author_first_name, author_last_name],
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[User.first_name, User.last_name]
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),
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)
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table = Article.__table__
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constraint = get_fk_constraint_for_columns(
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table,
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table.c.author_first_name,
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table.c.author_last_name
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)
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assert not has_unique_index(constraint)
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def test_composite_fk_with_index(self, Base):
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class User(Base):
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__tablename__ = 'user'
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first_name = sa.Column(sa.Unicode(255), primary_key=True)
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last_name = sa.Column(sa.Unicode(255), primary_key=True)
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class Article(Base):
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__tablename__ = 'article'
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id = sa.Column(sa.Integer, primary_key=True)
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author_first_name = sa.Column(sa.Unicode(255))
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author_last_name = sa.Column(sa.Unicode(255))
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__table_args__ = (
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sa.ForeignKeyConstraint(
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[author_first_name, author_last_name],
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[User.first_name, User.last_name]
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),
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sa.Index(
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'my_index',
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author_first_name,
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author_last_name,
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unique=True
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)
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)
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table = Article.__table__
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constraint = get_fk_constraint_for_columns(
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table,
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table.c.author_first_name,
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table.c.author_last_name
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)
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assert has_unique_index(constraint)
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def test_composite_fk_with_partial_index_match(self, Base):
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class User(Base):
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__tablename__ = 'user'
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first_name = sa.Column(sa.Unicode(255), primary_key=True)
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last_name = sa.Column(sa.Unicode(255), primary_key=True)
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class Article(Base):
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__tablename__ = 'article'
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id = sa.Column(sa.Integer, primary_key=True)
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author_first_name = sa.Column(sa.Unicode(255))
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author_last_name = sa.Column(sa.Unicode(255))
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__table_args__ = (
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sa.ForeignKeyConstraint(
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[author_first_name, author_last_name],
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[User.first_name, User.last_name]
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),
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sa.Index(
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'my_index',
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author_first_name,
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author_last_name,
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id,
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unique=True
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)
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)
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table = Article.__table__
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constraint = get_fk_constraint_for_columns(
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table,
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table.c.author_first_name,
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table.c.author_last_name
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)
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assert not has_unique_index(constraint)
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