87 lines
2.9 KiB
Python
87 lines
2.9 KiB
Python
from datetime import datetime
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from pytest import fixture
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from sqlalchemy.exc import IntegrityError
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import sqlalchemy.orm
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import data.database as db
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@fixture(scope='session')
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def db_session() -> db.dal.Session:
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db.dal.connect()
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yield db.dal.Session()
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if hasattr(db.dal, 'engine') and db.dal.engine:
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db.dal.engine.dispose()
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db.dal.engine.pool.recreate()
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@fixture(scope='function')
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def session(db_session) -> db.dal.Session:
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"""Provides a transactional scope around each test."""
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connection = db_session.connection()
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transaction = connection.begin()
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# bind the session to this specific connection
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db_session.bind = connection
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yield db_session
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# roll all changed that occurred back
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transaction.rollback()
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connection.close()
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def test_base() -> None:
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"""Test to ensure db.Base() is a sqlalchemy DeclarativeBase object."""
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assert isinstance(db.Base(), sqlalchemy.orm.DeclarativeBase)
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def test_powerball_draw_by_date_blank(session) -> None:
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"""
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Test that a null record is returned when no date is provided and that no dateless
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records can exist in the table.
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"""
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with session:
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blank_results = session.query(db.PowerballDraw).filter_by(draw_date='').all()
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assert blank_results == []
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def test_powerball_draw_by_date(session) -> None:
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"""Test to be sure we can find the first draw in the table by date."""
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with session:
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date = datetime(2010, 2, 3).date()
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draw = db.PowerballDraw(draw_date=date, main_ball1=17, main_ball2=22, main_ball3=36, main_ball4=37,
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main_ball5=52, powerball=24, power_play=2)
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record = session.query(db.PowerballDraw).filter_by(draw_date=date).first()
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assert record == draw
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def test_powerball_draw_integrity(session) -> None:
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"""Test that a proper error is received when a duplicate value insertion is attempted."""
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with session:
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date = datetime.strptime('02/03/2010','%m/%d/%Y').date()
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draw = db.PowerballDraw(draw_date=date, main_ball1=17, main_ball2=22, main_ball3=36, main_ball4=37,
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main_ball5=52, powerball=24, power_play=2)
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try:
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session.add(draw)
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session.commit()
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except IntegrityError:
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assert True
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finally:
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session.rollback()
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session.close()
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def test_powerball_repr_and_str(session) -> None:
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"""Test the __repr__ and __str__ methods of PowerballDraw objects."""
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with session:
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date = datetime(2010, 2, 3).date()
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record = session.query(db.PowerballDraw).filter_by(draw_date=date).first()
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assert str(record) == '2010-02-03, [17, 22, 36, 37, 52], 24, 2x'
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assert repr(record) == 'PowerballDraw(self.draw_date=datetime.date(2010, 2, 3), self.main_ball1=17, ' \
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'self.main_ball2=22, self.main_ball3=36, self.main_ball4=37, self.main_ball5=52, ' \
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'self.powerball=24, self.power_play=2)'
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