urban-meal-delivery/tests/db/test_cities.py

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"""Test the ORM's City model."""
import pytest
from sqlalchemy.orm import exc as orm_exc
from urban_meal_delivery import db
class TestSpecialMethods:
"""Test special methods in City."""
# pylint:disable=no-self-use
def test_create_city(self, city_data):
"""Test instantiation of a new City object."""
result = db.City(**city_data)
assert result is not None
def test_text_representation(self, city_data):
"""City has a non-literal text representation."""
city = db.City(**city_data)
name = city_data['name']
result = repr(city)
assert result == f'<City({name})>'
@pytest.mark.e2e
@pytest.mark.no_cover
class TestConstraints:
"""Test the database constraints defined in City."""
# pylint:disable=no-self-use
def test_insert_into_database(self, city, db_session):
"""Insert an instance into the database."""
db_session.add(city)
db_session.commit()
def test_dublicate_primary_key(self, city, city_data, db_session):
"""Can only add a record once."""
db_session.add(city)
db_session.commit()
another_city = db.City(**city_data)
db_session.add(another_city)
with pytest.raises(orm_exc.FlushError):
db_session.commit()
class TestProperties:
"""Test properties in City."""
# pylint:disable=no-self-use
def test_location_data(self, city_data):
"""Test City.location property."""
city = db.City(**city_data)
result = city.location
assert isinstance(result, dict)
assert len(result) == 2
assert result['latitude'] == pytest.approx(city_data['_center_latitude'])
assert result['longitude'] == pytest.approx(city_data['_center_longitude'])
def test_viewport_data_overall(self, city_data):
"""Test City.viewport property."""
city = db.City(**city_data)
result = city.viewport
assert isinstance(result, dict)
assert len(result) == 2
def test_viewport_data_northeast(self, city_data):
"""Test City.viewport property."""
city = db.City(**city_data)
result = city.viewport['northeast']
assert isinstance(result, dict)
assert len(result) == 2
assert result['latitude'] == pytest.approx(city_data['_northeast_latitude'])
assert result['longitude'] == pytest.approx(city_data['_northeast_longitude'])
def test_viewport_data_southwest(self, city_data):
"""Test City.viewport property."""
city = db.City(**city_data)
result = city.viewport['southwest']
assert isinstance(result, dict)
assert len(result) == 2
assert result['latitude'] == pytest.approx(city_data['_southwest_latitude'])
assert result['longitude'] == pytest.approx(city_data['_southwest_longitude'])