AWSLambda - refactor exception handling

tests/test_cloudformation/test_cloudformation_stack_crud.py

@@ -4,6 +4,7 @@ import os
 import json
 
 import boto
+import boto3
 import boto.iam
 import boto.s3
 import boto.s3.key
@@ -19,9 +20,9 @@ from moto import (
     mock_cloudformation_deprecated,
     mock_s3_deprecated,
     mock_route53_deprecated,
+    mock_iam,
 )
 from moto.cloudformation import cloudformation_backends
-from moto.iam import mock_iam_deprecated
 
 dummy_template = {
     "AWSTemplateFormatVersion": "2010-09-09",
@@ -596,9 +597,8 @@ def test_create_stack_kinesis():
 
 
 def get_role_name():
-    with mock_iam_deprecated():
-        iam = boto.connect_iam()
-        role = iam.create_role("my-role")["create_role_response"]["create_role_result"][
-            "role"
-        ]["arn"]
-        return role
+    with mock_iam():
+        iam = boto3.client("iam")
+        return iam.create_role(
+            RoleName="TestRole", AssumeRolePolicyDocument="some_policy"
+        )["Role"]["Arn"]