1 files changed, 10 insertions, 0 deletions
diff --git a/Lib/test/test_dataclasses/__init__.py b/Lib/test/test_dataclasses/__init__.py
index ffb8bbe75c5..b93c99d8c90 100644
--- a/Lib/test/test_dataclasses/__init__.py
+++ b/Lib/test/test_dataclasses/__init__.py
@@ -4807,6 +4807,16 @@ class TestKeywordArgs(unittest.TestCase):
         self.assertTrue(fields(B)[0].kw_only)
         self.assertFalse(fields(B)[1].kw_only)
 
+    def test_deferred_annotations(self):
+        @dataclass
+        class A:
+            x: undefined
+            y: ClassVar[undefined]
+
+        fs = fields(A)
+        self.assertEqual(len(fs), 1)
+        self.assertEqual(fs[0].name, 'x')
+
 
 if __name__ == '__main__':
     unittest.main()