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-rw-r--r--tests/migrations/test_operations.py18
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/migrations/test_operations.py b/tests/migrations/test_operations.py
index d34a6a4284..f86a39f5ee 100644
--- a/tests/migrations/test_operations.py
+++ b/tests/migrations/test_operations.py
@@ -19,6 +19,10 @@ except ImportError:
sqlparse = None
+class Mixin(object):
+ pass
+
+
class OperationTestBase(MigrationTestBase):
"""
Common functions to help test operations.
@@ -244,6 +248,20 @@ class OperationTests(OperationTestBase):
fields=[],
bases=(UnicodeModel, 'migrations.UnicodeModel',),
)
+ message = "Found duplicate value <class 'django.db.models.base.Model'> in CreateModel bases argument."
+ with self.assertRaisesMessage(ValueError, message):
+ migrations.CreateModel(
+ "Pony",
+ fields=[],
+ bases=(models.Model, models.Model,),
+ )
+ message = "Found duplicate value <class 'migrations.test_operations.Mixin'> in CreateModel bases argument."
+ with self.assertRaisesMessage(ValueError, message):
+ migrations.CreateModel(
+ "Pony",
+ fields=[],
+ bases=(Mixin, Mixin,),
+ )
def test_create_model_with_duplicate_manager_name(self):
with self.assertRaisesMessage(ValueError, 'Found duplicate value objects in CreateModel managers argument.'):