From a5450f0298ddac8b89312d423e3ff7f8fc41dd94 Mon Sep 17 00:00:00 2001
From: Jonathan Kim <jkimbo@gmail.com>
Date: Wed, 8 Jun 2022 11:52:04 +0000
Subject: [PATCH] Cast error message to string to handle proxy objects

---
 src/graphql/error/located_error.py |  2 +-
 tests/error/test_located_error.py  | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/graphql/error/located_error.py b/src/graphql/error/located_error.py
index 0f81deae..60bc63c9 100644
--- a/src/graphql/error/located_error.py
+++ b/src/graphql/error/located_error.py
@@ -29,7 +29,7 @@ def located_error(
         return original_error
     try:
         # noinspection PyUnresolvedReferences
-        message = original_error.message  # type: ignore
+        message = str(original_error.message)  # type: ignore
     except AttributeError:
         message = str(original_error)
     try:
diff --git a/tests/error/test_located_error.py b/tests/error/test_located_error.py
index cfb252e6..e8a72793 100644
--- a/tests/error/test_located_error.py
+++ b/tests/error/test_located_error.py
@@ -2,6 +2,8 @@
 
 from graphql.error import GraphQLError, located_error
 
+from ..utils import dedent
+
 
 def describe_located_error():
     def throws_without_an_original_error():
@@ -23,3 +25,24 @@ def does_not_pass_through_elasticsearch_like_errors():
         e = Exception("I am from elasticsearch")
         cast(Any, e).path = "/something/feed/_search"
         assert located_error(e, [], []) is not e
+
+    def handles_proxy_error_messages():
+        class ProxyString:
+            def __init__(self, value):
+                self.value = value
+
+            def __str__(self):
+                return self.value
+
+        class MyError(Exception):
+            def __init__(self):
+                self.message = ProxyString("Example error")
+                super().__init__()
+
+        error = located_error(MyError(), [], [])
+
+        assert str(error) == dedent(
+            """
+            Example error
+            """
+        )