96 lines
3.0 KiB
Python
96 lines
3.0 KiB
Python
import databases
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import pytest
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import sqlalchemy
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import ormar
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from tests.settings import DATABASE_URL
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database = databases.Database(DATABASE_URL, force_rollback=True)
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metadata = sqlalchemy.MetaData()
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class Child(ormar.Model):
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class Meta:
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tablename = "children"
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metadata = metadata
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database = database
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id: ormar.Integer(name='child_id', primary_key=True)
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first_name: ormar.String(name='fname', max_length=100)
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last_name: ormar.String(name='lname', max_length=100)
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born_year: ormar.Integer(name='year_born')
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class ArtistChildren(ormar.Model):
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class Meta:
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tablename = "children_x_artists"
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metadata = metadata
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database = database
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class Artist(ormar.Model):
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class Meta:
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tablename = "artists"
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metadata = metadata
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database = database
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id: ormar.Integer(name='artist_id', primary_key=True)
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first_name: ormar.String(name='fname', max_length=100)
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last_name: ormar.String(name='lname', max_length=100)
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born_year: ormar.Integer(name='year')
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children: ormar.ManyToMany(Child, through=ArtistChildren)
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class Album(ormar.Model):
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class Meta:
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tablename = "music_albums"
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metadata = metadata
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database = database
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id: ormar.Integer(name='album_id', primary_key=True)
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name: ormar.String(name='album_name', max_length=100)
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artist: ormar.ForeignKey(Artist, name='artist_id')
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@pytest.fixture(autouse=True, scope="module")
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def create_test_database():
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engine = sqlalchemy.create_engine(DATABASE_URL)
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metadata.drop_all(engine)
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metadata.create_all(engine)
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yield
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metadata.drop_all(engine)
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def test_table_structure():
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assert 'album_id' in [x.name for x in Album.Meta.table.columns]
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assert 'album_name' in [x.name for x in Album.Meta.table.columns]
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assert 'fname' in [x.name for x in Artist.Meta.table.columns]
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assert 'lname' in [x.name for x in Artist.Meta.table.columns]
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assert 'year' in [x.name for x in Artist.Meta.table.columns]
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@pytest.mark.asyncio
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async def test_working_with_aliases():
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async with database:
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async with database.transaction(force_rollback=True):
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artist = await Artist.objects.create(first_name='Ted', last_name='Mosbey', born_year=1975)
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await Album.objects.create(name="Aunt Robin", artist=artist)
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await artist.children.create(first_name='Son', last_name='1', born_year=1990)
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await artist.children.create(first_name='Son', last_name='2', born_year=1995)
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album = await Album.objects.select_related('artist').first()
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assert album.artist.last_name == 'Mosbey'
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assert album.artist.id is not None
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assert album.artist.first_name == 'Ted'
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assert album.artist.born_year == 1975
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assert album.name == 'Aunt Robin'
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artist = await Artist.objects.select_related('children').get()
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assert len(artist.children) == 2
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assert artist.children[0].first_name == 'Son'
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assert artist.children[1].last_name == '2'
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