implement pytest.mark.parametrize

tests/test_datastructures.py

@@ -1068,15 +1068,16 @@ def test_bytes_proper_sentinel(self):
             assert idx < 2
         assert idx == 1
 
-    def test_proxy_can_access_stream_attrs(self):
+    @pytest.mark.parametrize(
+        "attributes", ("writable", "readable", "seekable")
+    )
+    def test_proxy_can_access_stream_attrs(self, attributes):
         # make sure the file object has the bellow attributes as described in
         # https://github.com/pallets/werkzeug/issues/1344
         from tempfile import SpooledTemporaryFile
         file_storage = self.storage_class(stream=SpooledTemporaryFile())
 
-        assert hasattr(file_storage, "writeable")
-        assert hasattr(file_storage, "readable")
-        assert hasattr(file_storage, "seekable")
+        assert hasattr(file_storage, attributes)
 
 
 @pytest.mark.parametrize(