Alexander Hess
fdcc93a1ea
- use SQLAlchemy (and PostgreSQL) to model the ORM layer
- add the following models:
+ Address => modelling all kinds of addresses
+ City => model the three target cities
+ Courier => model the UDP's couriers
+ Customer => model the UDP's customers
+ Order => model the orders received by the UDP
+ Restaurant => model the restaurants active on the UDP
- so far, the emphasis lies on expression the Foreign Key
and Check Constraints that are used to validate the assumptions
inherent to the cleanded data
- provide database-independent unit tests with 100% coverage
- provide additional integration tests ("e2e") that commit data to
a PostgreSQL instance to validate that the constraints work
- adapt linting rules a bit
99 lines
2.8 KiB
Python
99 lines
2.8 KiB
Python
"""Test the ORM's City model."""
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import pytest
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from sqlalchemy.orm import exc as orm_exc
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from urban_meal_delivery import db
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class TestSpecialMethods:
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"""Test special methods in City."""
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# pylint:disable=no-self-use
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def test_create_city(self, city_data):
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"""Test instantiation of a new City object."""
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result = db.City(**city_data)
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assert result is not None
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def test_text_representation(self, city_data):
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"""City has a non-literal text representation."""
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city = db.City(**city_data)
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name = city_data['name']
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result = repr(city)
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assert result == f'<City({name})>'
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@pytest.mark.e2e
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@pytest.mark.no_cover
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class TestConstraints:
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"""Test the database constraints defined in City."""
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# pylint:disable=no-self-use
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def test_insert_into_database(self, city, db_session):
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"""Insert an instance into the database."""
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db_session.add(city)
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db_session.commit()
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def test_dublicate_primary_key(self, city, city_data, db_session):
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"""Can only add a record once."""
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db_session.add(city)
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db_session.commit()
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another_city = db.City(**city_data)
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db_session.add(another_city)
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with pytest.raises(orm_exc.FlushError):
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db_session.commit()
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class TestProperties:
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"""Test properties in City."""
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# pylint:disable=no-self-use
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def test_location_data(self, city_data):
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"""Test City.location property."""
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city = db.City(**city_data)
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result = city.location
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assert isinstance(result, dict)
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assert len(result) == 2
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assert result['latitude'] == pytest.approx(city_data['_center_latitude'])
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assert result['longitude'] == pytest.approx(city_data['_center_longitude'])
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def test_viewport_data_overall(self, city_data):
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"""Test City.viewport property."""
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city = db.City(**city_data)
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result = city.viewport
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assert isinstance(result, dict)
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assert len(result) == 2
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def test_viewport_data_northeast(self, city_data):
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"""Test City.viewport property."""
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city = db.City(**city_data)
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result = city.viewport['northeast']
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assert isinstance(result, dict)
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assert len(result) == 2
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assert result['latitude'] == pytest.approx(city_data['_northeast_latitude'])
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assert result['longitude'] == pytest.approx(city_data['_northeast_longitude'])
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def test_viewport_data_southwest(self, city_data):
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"""Test City.viewport property."""
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city = db.City(**city_data)
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result = city.viewport['southwest']
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assert isinstance(result, dict)
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assert len(result) == 2
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assert result['latitude'] == pytest.approx(city_data['_southwest_latitude'])
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assert result['longitude'] == pytest.approx(city_data['_southwest_longitude'])
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