Merge pull request #546 from python-openapi/fix/allow-empty-template-variables-fix

allow empty template variables fix

Author: p1c2u

openapi_core/templating/util.py

@@ -15,7 +15,7 @@ def _handle_field(self, field: str) -> Any:
 
 class PathParameter:
     name = "PathParameter"
-    pattern = r"[^\/]+"
+    pattern = r"[^\/]*"
 
     def __call__(self, text: str) -> str:
         return text

tests/unit/templating/test_paths_finders.py

@@ -217,7 +217,7 @@ def test_simple(self, finder, spec):
 
 
 class BaseTestVariableValid:
-    @pytest.mark.parametrize("version", ["v1", "v2"])
+    @pytest.mark.parametrize("version", ["v1", "v2", ""])
     def test_variable(self, finder, spec, version):
         method = "get"
         full_url = f"http://petstore.swagger.io/{version}/resource"