veekun_pokedex/pokedex/tests/test_database_sanity.py

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import pytest
from sqlalchemy.orm import aliased, joinedload
from sqlalchemy.orm.exc import NoResultFound
from pokedex.db import connect, tables, util
def test_encounter_slots():
# Encounters have a version, which has a version group; encounters also
# have an encounter_slot, which has a version group. The two version
# groups should match, universally.
session = connect()
version_group_a = aliased(tables.VersionGroup)
version_group_b = aliased(tables.VersionGroup)
sanity_q = session.query(tables.Encounter) \
.join((tables.EncounterSlot, tables.Encounter.slot)) \
.join((version_group_a, tables.EncounterSlot.version_group)) \
.join((tables.Version, tables.Encounter.version)) \
.join((version_group_b, tables.Version.version_group)) \
.filter(version_group_a.id != version_group_b.id)
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# Encounter slots all match the encounters they belong to
assert sanity_q.count() == 0
def test_nonzero_autoincrement_ids():
"""Check that autoincrementing ids don't contain zeroes
MySQL doesn't like these, see e.g. bug #580
"""
session = connect()
for cls in tables.mapped_classes:
if 'id' in cls.__table__.c:
if cls.__table__.c.id.autoincrement:
def nonzero_id(cls):
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with pytest.raises(NoResultFound):
util.get(session, cls, id=0)
nonzero_id.description = "No zero id in %s" % cls.__name__
yield nonzero_id, cls
def test_unique_form_order():
"""Check that tone PokemonForm.order value isn't used for more species
"""
session = connect()
species_by_form_order = {}
query = session.query(tables.PokemonForm)
query = query.options(joinedload('pokemon.species'))
for form in query:
print form.name
try:
previous_species = species_by_form_order[form.order]
except KeyError:
species_by_form_order[form.order] = form.species
else:
assert previous_species == form.species, (
"PokemonForm.order == %s is used for %s and %s" % (
form.order,
species_by_form_order[form.order].name,
form.species.name))