Ensures exceptions with non-str arguments are reraised

Author: Maxcode123

src/unittest_extensions/case.py

@@ -61,7 +61,8 @@ def result(self) -> Any:
         except Exception as e:
             if len(e.args) == 0:
                 raise e
-            msg = e.args[0]
+
+            msg = str(e.args[0])
             if "subject() got an unexpected keyword argument" in msg:
                 raise TestError(
                     "Subject received "

src/unittest_extensions/tests/test_use_case.py

@@ -82,7 +82,6 @@ def test_raises_test_error(self):
 
 
 class TestAppend(TestCase):
-
     def instance(self) -> TestClass:
         return TestClass()
 
@@ -204,3 +203,11 @@ def subject(self):
 
     def test_reraises_empty_exception(self):
         self.assertResultRaises(self.MyError)
+
+
+class TestRaiseExceptionWithNonStrArgs(TestCase):
+    def subject(self):
+        raise KeyError(2)
+
+    def test_reraises_error(self):
+        self.assertResultRaises(KeyError)