88 lines
2.2 KiB
Python
88 lines
2.2 KiB
Python
import time
|
|
from typing import Optional
|
|
|
|
import databases
|
|
import pytest
|
|
import sqlalchemy
|
|
from sqlalchemy import (
|
|
Column,
|
|
ForeignKey,
|
|
ForeignKeyConstraint,
|
|
Integer,
|
|
String,
|
|
Table,
|
|
create_engine,
|
|
inspect,
|
|
)
|
|
from sqlalchemy.dialects import postgresql
|
|
|
|
import ormar
|
|
from tests.settings import DATABASE_URL
|
|
|
|
database = databases.Database(DATABASE_URL)
|
|
metadata = sqlalchemy.MetaData()
|
|
engine = sqlalchemy.create_engine(DATABASE_URL, echo=True)
|
|
|
|
|
|
class Artist(ormar.Model):
|
|
class Meta:
|
|
tablename = "artists"
|
|
metadata = metadata
|
|
database = database
|
|
|
|
id: int = ormar.Integer(primary_key=True)
|
|
name: str = ormar.String(max_length=100)
|
|
|
|
|
|
class Album(ormar.Model):
|
|
class Meta:
|
|
tablename = "albums"
|
|
metadata = metadata
|
|
database = database
|
|
|
|
id: int = ormar.Integer(primary_key=True)
|
|
name: str = ormar.String(max_length=100)
|
|
artist: Optional[Artist] = ormar.ForeignKey(Artist, ondelete="CASCADE")
|
|
|
|
|
|
#
|
|
# class Track(ormar.Model):
|
|
# class Meta:
|
|
# tablename = "tracks"
|
|
# metadata = metadata
|
|
# database = database
|
|
#
|
|
# id: int = ormar.Integer(primary_key=True)
|
|
# album: Optional[Album] = ormar.ForeignKey(Album, ondelete='CASCADE')
|
|
# title: str = ormar.String(max_length=100)
|
|
|
|
|
|
@pytest.fixture(autouse=True, scope="module")
|
|
def create_test_database():
|
|
# if "sqlite" in DATABASE_URL:
|
|
# with engine.connect() as connection:
|
|
# connection.execute("PRAGMA foreign_keys = ON;")
|
|
metadata.drop_all(engine)
|
|
metadata.create_all(engine)
|
|
# tables = list(metadata.tables.values())
|
|
# tab = Album.Meta.table
|
|
# breakpoint()
|
|
yield
|
|
# metadata.drop_all(engine)
|
|
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_simple_cascade():
|
|
async with database:
|
|
# async with database.transaction(force_rollback=True):
|
|
artist = await Artist(name="Dr Alban").save()
|
|
await Album(name="Jamaica", artist=artist).save()
|
|
await Artist.objects.delete(id=artist.id)
|
|
|
|
artists = await Artist.objects.all()
|
|
assert len(artists) == 0
|
|
|
|
async with database:
|
|
albums = await Album.objects.all()
|
|
assert len(albums) == 0
|