tests - skipif?

tests/schema_test.py

@@ -4,6 +4,8 @@
 import uuid
 from unittest.mock import MagicMock, patch
 
+from pydantic.fields import FieldInfo
+
 if sys.version_info >= (3, 9):
     from pathlib import Path
 else:
@@ -106,6 +108,7 @@ def test_schema_string_pattern(with_schema_string_pattern):
 
 @pytest.mark.skipif(sys.version_info <= (3, 8), reason="typing")
 def test_schema_regex_engine(with_schema_regex_engine):
+    print(sys.version_info)
     api = OpenAPI("/", with_schema_regex_engine)
     Root = api.components.schemas["Root"].get_type()
 
@@ -123,8 +126,12 @@ def test_schema_regex_engine(with_schema_regex_engine):
     import pydantic_core._pydantic_core
 
     with pytest.raises(pydantic_core._pydantic_core.SchemaError, match="error: unclosed character class$"):
-        pattern = typing.get_args(Root.model_fields["root"].annotation)[1].metadata[0].pattern
-
+        annotations = typing.get_args(Root.model_fields["root"].annotation)
+        assert len(annotations) == 2 and annotations[0] == str and isinstance(annotations[1], FieldInfo), annotations
+        metadata = annotations[1].metadata
+        assert len(metadata) == 1, metadata
+        pattern = metadata[0].pattern
+        assert isinstance(pattern, str), pattern
         from typing import Annotated
 
         C = Annotated[str, pydantic.Field(pattern=pattern)]