fix: display the messages when SCIMTester errors are raised

Author: azmeuk

scim2_tester/utils.py

@@ -35,6 +35,9 @@ def __init__(self, message: str, conf: CheckConfig):
         self.message = message
         self.conf = conf
 
+    def __str__(self):
+        return self.message
+
 
 @dataclass
 class CheckResult: