Tests unmanaged models.

cachalot/tests/migrations/0001_initial.py

@@ -74,4 +74,6 @@ class Migration(migrations.Migration):
                 ('datetime_range', DateTimeRangeField(null=True, blank=True)),
             ],
         ),
+        migrations.RunSQL('CREATE TABLE cachalot_unmanagedmodel '
+                          '(id SERIAL PRIMARY KEY, name VARCHAR(50));'),
     ]

cachalot/tests/models.py

@@ -62,3 +62,10 @@ class PostgresModel(Model):
     class Meta:
         # Tests schema name in table name.
         db_table = '"public"."cachalot_postgresmodel"'
+
+
+class UnmanagedModel(Model):
+    name = CharField(max_length=50)
+
+    class Meta:
+        managed = False

cachalot/tests/read.py

@@ -20,7 +20,7 @@ from pytz import UTC
 
 from ..settings import cachalot_settings
 from ..utils import UncachableQuery
-from .models import Test, TestChild, TestParent
+from .models import Test, TestChild, TestParent, UnmanagedModel
 from .test_utils import TestUtilsMixin
 
 
@@ -698,6 +698,11 @@ class ReadTestCase(TestUtilsMixin, TransactionTestCase):
         with connection.cursor() as cursor:
             cursor.execute('DROP TABLE %s;' % table_name)
 
+    def test_unmanaged_model(self):
+        qs = UnmanagedModel.objects.all()
+        self.assert_tables(qs, UnmanagedModel)
+        self.assert_query_cached(qs)
+
 
 class ParameterTypeTestCase(TestUtilsMixin, TransactionTestCase):
     def test_tuple(self):