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-rw-r--r--tests/backends/base/test_operations.py10
1 files changed, 10 insertions, 0 deletions
diff --git a/tests/backends/base/test_operations.py b/tests/backends/base/test_operations.py
new file mode 100644
index 0000000000..4477547c93
--- /dev/null
+++ b/tests/backends/base/test_operations.py
@@ -0,0 +1,10 @@
+from django.db import NotSupportedError, connection
+from django.test import SimpleTestCase, skipIfDBFeature
+
+
+class DatabaseOperationTests(SimpleTestCase):
+ @skipIfDBFeature('supports_over_clause')
+ def test_window_frame_raise_not_supported_error(self):
+ msg = 'This backend does not support window expressions.'
+ with self.assertRaisesMessage(NotSupportedError, msg):
+ connection.ops.window_frame_rows_start_end()