Add support for pairing devices with hubs (#859)

Co-authored-by: Steven B. <51370195+sdb9696@users.noreply.github.com>

tests/test_cli.py

@@ -1,5 +1,4 @@
 import json
-import os
 import re
 from datetime import datetime
 from unittest.mock import ANY, PropertyMock, patch
@@ -62,15 +61,6 @@ from .conftest import (
 pytestmark = [pytest.mark.requires_dummy]
 
 
-@pytest.fixture
-def runner():
-    """Runner fixture that unsets the KASA_ environment variables for tests."""
-    KASA_VARS = {k: None for k, v in os.environ.items() if k.startswith("KASA_")}
-    runner = CliRunner(env=KASA_VARS)
-
-    return runner
-
-
 async def test_help(runner):
     """Test that all the lazy modules are correctly names."""
     res = await runner.invoke(cli, ["--help"])