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import pytest
import sqlalchemy as sa
from sqlalchemy_utils import Ltree, LtreeType
from sqlalchemy_utils.compat import _select_args
@pytest.fixture
def Section(Base):
class Section(Base):
__tablename__ = 'section'
id = sa.Column(sa.Integer, primary_key=True)
path = sa.Column(LtreeType)
return Section
@pytest.fixture
def init_models(Section, connection):
with connection.begin():
connection.execute(sa.text('CREATE EXTENSION IF NOT EXISTS ltree'))
pass
@pytest.mark.usefixtures('postgresql_dsn')
class TestLTREE:
def test_saves_path(self, session, Section):
section = Section(path='1.1.2')
session.add(section)
session.commit()
user = session.query(Section).first()
assert user.path == '1.1.2'
def test_scalar_attributes_get_coerced_to_objects(self, Section):
section = Section(path='path.path')
assert isinstance(section.path, Ltree)
def test_literal_param(self, session, Section):
clause = Section.path == 'path'
compiled = str(clause.compile(compile_kwargs={'literal_binds': True}))
assert compiled == 'section.path = \'path\''
def test_compilation(self, Section, session):
query = sa.select(*_select_args(Section.path))
# the type should be cacheable and not throw exception
session.execute(query)
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