def test_schema_model_multiple_bases(self):
"""
Multiple declarative bases on same Connector should fail.
"""
BaseX = declarative_base()
BaseY = declarative_base()
class Cats(BaseX):
__tablename__ = 'cat'
id = Column(Integer, primary_key=True)
name = Column(String(250))
class Dogs(BaseY):
__tablename__ = 'dog'
id = Column(Integer, primary_key=True)
name = Column(String(250))
db_file = "{}/pets.db".format(self.working_directory())
c = SqlAlchemyDatabaseConnector(engine_url=f"sqlite:///{db_file}",
schema_model=[Cats, Dogs],
access=ayeaye.AccessMode.READWRITE
)
with self.assertRaises(ValueError) as context:
c.connect()
self.assertIn("Models passed to `schema_model` must share the same declarative base",
str(context.exception)
)
def test_double_close_sqlite(self):
"""
TODO - can't reproduce the "Cannot operate on a closed database." Sqlite error.
"""
db_file = "{}/fruit.db".format(self.working_directory())
c = SqlAlchemyDatabaseConnector(engine_url=f"sqlite:///{db_file}",
schema_builder=fruit_schemas,
access=ayeaye.AccessMode.READWRITE
)
c.connect()
c.create_table_schema()
c.add(c.schema.Pear(variety="Williams"))
# c.commit()
c.close_connection()
c.__del__()
def test_create_db_schema(self):
c = SqlAlchemyDatabaseConnector(engine_url="sqlite://",
schema_builder=fruit_schemas,
access=ayeaye.AccessMode.WRITE,
)
c.connect()
# check there aren't any tables in the DB here
with self.assertRaises(OperationalError) as context:
c.session.query(c.schema.Pear).all()
self.assertIn("no such table: pear", str(context.exception))
c.create_table_schema()
# but there are tables now (but no data in them)
all_the_pears = c.session.query(c.schema.Pear).all()
self.assertIsInstance(all_the_pears, list)
self.assertEqual(0, len(all_the_pears))
def test_on_disk(self):
"""
All the other tests are in memory. Ensure to disk works.
This test is also being created because windows is refusing to delete open files so
confirmation that close_connection() is working was experimented with using lsof under
OSX. But the file handle isn't left open so can't be part of this test.
"""
db_file = "{}/fruit.db".format(self.working_directory())
c = SqlAlchemyDatabaseConnector(engine_url=f"sqlite:///{db_file}",
schema_builder=fruit_schemas,
access=ayeaye.AccessMode.READWRITE
)
c.connect()
c.create_table_schema()
c.add(c.schema.Pear(variety="Comice"))
c.commit()
c.close_connection()
self.assertTrue(os.access(db_file, os.R_OK))
def test_add_orm_data_multiple(self):
c = SqlAlchemyDatabaseConnector(engine_url="sqlite://",
schema_builder=fruit_schemas,
access=ayeaye.AccessMode.READWRITE
)
c.connect()
c.create_table_schema()
with self.assertRaises(ValueError) as context:
c.add({'variety': 'Cavendish'})
self.assertIn("Dictionary can only be used in single schema mode", str(context.exception))
c.add(c.schema.Pear(variety="D'Anjou"))
c.add(c.schema.Bananna(variety="Cavendish"))
c.commit()
# read back mixed types with primary key values belonging to each table (i.e. both are 1)
mixed_records = [r.__tablename__ + str(r.id) for r in c]
expected = "pear1 bananna1"
self.assertEqual(expected, " ".join(mixed_records))