Blacklist auto_backup (#32912)

* Blacklist auto_backup

* Mock with a set

tests/test_setup.py

@@ -6,6 +6,7 @@ import os
 import threading
 from unittest import mock
 
+from asynctest import patch
 import voluptuous as vol
 
 from homeassistant import setup
@@ -535,3 +536,15 @@ async def test_setup_import_blows_up(hass):
         "homeassistant.loader.Integration.get_component", side_effect=ValueError
     ):
         assert not await setup.async_setup_component(hass, "sun", {})
+
+
+async def test_blacklist(caplog):
+    """Test setup blacklist."""
+    with patch("homeassistant.setup.BLACKLIST", {"bad_integration"}):
+        assert not await setup.async_setup_component(
+            mock.Mock(config=mock.Mock(components=[])), "bad_integration", {}
+        )
+    assert (
+        "Integration bad_integration is blacklisted because it is causing issues."
+        in caplog.text
+    )