Added integration test of failed authentication to redis

t/integration/test_redis.py

@@ -2,6 +2,7 @@ import os
 from time import sleep
 
 import pytest
+import redis
 
 import kombu
 
@@ -9,9 +10,15 @@ from .common import BaseExchangeTypes, BasePriority, BasicFunctionality
 
 
 def get_connection(
-        hostname, port, vhost, transport_options=None):
+        hostname, port, vhost, user_name=None, password=None,
+        transport_options=None):
+
+    credentials = f'{user_name}:{password}@' if user_name else ''
+
     return kombu.Connection(
-        f'redis://{hostname}:{port}', transport_options=transport_options)
+        f'redis://{credentials}{hostname}:{port}',
+        transport_options=transport_options
+    )
 
 
 @pytest.fixture(params=[None, {'global_keyprefix': '_prefixed_'}])
@@ -32,6 +39,19 @@ def invalid_connection():
     return kombu.Connection('redis://localhost:12345')
 
 
+@pytest.mark.env('redis')
+def test_failed_credentials():
+    """Tests denied connection when wrong credentials were provided"""
+    with pytest.raises(redis.exceptions.ResponseError):
+        get_connection(
+            hostname=os.environ.get('REDIS_HOST', 'localhost'),
+            port=os.environ.get('REDIS_6379_TCP', '6379'),
+            vhost=None,
+            user_name='wrong_redis_user',
+            password='wrong_redis_password'
+        ).connect()
+
+
 @pytest.mark.env('redis')
 @pytest.mark.flaky(reruns=5, reruns_delay=2)
 class test_RedisBasicFunctionality(BasicFunctionality):