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from django.db import connection
from . import PostgreSQLTestCase
try:
from django.contrib.postgres.signals import (
get_citext_oids,
get_hstore_oids,
register_type_handlers,
)
except ImportError:
pass # psycopg isn't installed.
class OIDTests(PostgreSQLTestCase):
def assertOIDs(self, oids):
self.assertIsInstance(oids, tuple)
self.assertGreater(len(oids), 0)
self.assertTrue(all(isinstance(oid, int) for oid in oids))
def test_hstore_cache(self):
get_hstore_oids(connection.alias)
with self.assertNumQueries(0):
get_hstore_oids(connection.alias)
def test_citext_cache(self):
get_citext_oids(connection.alias)
with self.assertNumQueries(0):
get_citext_oids(connection.alias)
def test_hstore_values(self):
oids, array_oids = get_hstore_oids(connection.alias)
self.assertOIDs(oids)
self.assertOIDs(array_oids)
def test_citext_values(self):
oids, citext_oids = get_citext_oids(connection.alias)
self.assertOIDs(oids)
self.assertOIDs(citext_oids)
def test_register_type_handlers_no_db(self):
"""Registering type handlers for the nodb connection does nothing."""
with connection._nodb_cursor() as cursor:
register_type_handlers(cursor.db)
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