Add support for pairing devices with hubs (#859)

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

tests/cli/test_hub.py

@@ -0,0 +1,53 @@
+import pytest
+from pytest_mock import MockerFixture
+
+from kasa import DeviceType, Module
+from kasa.cli.hub import hub
+
+from ..device_fixtures import HUBS_SMART, hubs_smart, parametrize, plug_iot
+
+
+@hubs_smart
+async def test_hub_pair(dev, mocker: MockerFixture, runner, caplog):
+    """Test that pair calls the expected methods."""
+    cs = dev.modules.get(Module.ChildSetup)
+    # Patch if the device supports the module
+    if cs is not None:
+        mock_pair = mocker.patch.object(cs, "pair")
+
+    res = await runner.invoke(hub, ["pair"], obj=dev, catch_exceptions=False)
+    if cs is None:
+        assert "is not a hub" in res.output
+        return
+
+    mock_pair.assert_awaited()
+    assert "Finding new devices for 10 seconds" in res.output
+    assert res.exit_code == 0
+
+
+@parametrize("hubs smart", model_filter=HUBS_SMART, protocol_filter={"SMART"})
+async def test_hub_unpair(dev, mocker: MockerFixture, runner):
+    """Test that unpair calls the expected method."""
+    if not dev.children:
+        pytest.skip("Cannot test without child devices")
+
+    id_ = next(iter(dev.children)).device_id
+
+    cs = dev.modules.get(Module.ChildSetup)
+    mock_unpair = mocker.spy(cs, "unpair")
+
+    res = await runner.invoke(hub, ["unpair", id_], obj=dev, catch_exceptions=False)
+
+    mock_unpair.assert_awaited()
+    assert f"Unpaired {id_}" in res.output
+    assert res.exit_code == 0
+
+
+@plug_iot
+async def test_non_hub(dev, mocker: MockerFixture, runner):
+    """Test that hub commands return an error if executed on a non-hub."""
+    assert dev.device_type is not DeviceType.Hub
+    res = await runner.invoke(
+        hub, ["unpair", "dummy_id"], obj=dev, catch_exceptions=False
+    )
+    assert "is not a hub" in res.output