Add homekit_controller tests (#20457)

* Add a test for a homekit_controller switch

* Add a test for a homekit_controller lightbulb

* Add a test for homekit_controller thermostat

* Changes from review

* Patch utcnow to known time in HK tests

* Neater fixture use per review

tests/components/homekit_controller/test_climate.py

@@ -0,0 +1,77 @@
+"""Basic checks for HomeKitclimate."""
+from homeassistant.components.climate import (
+    DOMAIN, SERVICE_SET_OPERATION_MODE, SERVICE_SET_TEMPERATURE)
+from tests.components.homekit_controller.common import (
+    setup_test_component)
+
+
+HEATING_COOLING_TARGET = ('thermostat', 'heating-cooling.target')
+HEATING_COOLING_CURRENT = ('thermostat', 'heating-cooling.current')
+TEMPERATURE_TARGET = ('thermostat', 'temperature.target')
+TEMPERATURE_CURRENT = ('thermostat', 'temperature.current')
+
+
+async def test_climate_change_thermostat_state(hass, utcnow):
+    """Test that we can turn a HomeKit thermostat on and off again."""
+    from homekit.model.services import ThermostatService
+
+    helper = await setup_test_component(hass, [ThermostatService()])
+
+    await hass.services.async_call(DOMAIN, SERVICE_SET_OPERATION_MODE, {
+        'entity_id': 'climate.testdevice',
+        'operation_mode': 'heat',
+    }, blocking=True)
+
+    assert helper.characteristics[HEATING_COOLING_TARGET].value == 1
+
+    await hass.services.async_call(DOMAIN, SERVICE_SET_OPERATION_MODE, {
+        'entity_id': 'climate.testdevice',
+        'operation_mode': 'cool',
+    }, blocking=True)
+    assert helper.characteristics[HEATING_COOLING_TARGET].value == 2
+
+
+async def test_climate_change_thermostat_temperature(hass, utcnow):
+    """Test that we can turn a HomeKit thermostat on and off again."""
+    from homekit.model.services import ThermostatService
+
+    helper = await setup_test_component(hass, [ThermostatService()])
+
+    await hass.services.async_call(DOMAIN, SERVICE_SET_TEMPERATURE, {
+        'entity_id': 'climate.testdevice',
+        'temperature': 21,
+    }, blocking=True)
+    assert helper.characteristics[TEMPERATURE_TARGET].value == 21
+
+    await hass.services.async_call(DOMAIN, SERVICE_SET_TEMPERATURE, {
+        'entity_id': 'climate.testdevice',
+        'temperature': 25,
+    }, blocking=True)
+    assert helper.characteristics[TEMPERATURE_TARGET].value == 25
+
+
+async def test_climate_read_thermostat_state(hass, utcnow):
+    """Test that we can read the state of a HomeKit thermostat accessory."""
+    from homekit.model.services import ThermostatService
+
+    helper = await setup_test_component(hass, [ThermostatService()])
+
+    # Simulate that heating is on
+    helper.characteristics[TEMPERATURE_CURRENT].value = 19
+    helper.characteristics[TEMPERATURE_TARGET].value = 21
+    helper.characteristics[HEATING_COOLING_CURRENT].value = 1
+    helper.characteristics[HEATING_COOLING_TARGET].value = 1
+
+    state = await helper.poll_and_get_state()
+    assert state.state == 'heat'
+    assert state.attributes['current_temperature'] == 19
+
+    # Simulate that cooling is on
+    helper.characteristics[TEMPERATURE_CURRENT].value = 21
+    helper.characteristics[TEMPERATURE_TARGET].value = 19
+    helper.characteristics[HEATING_COOLING_CURRENT].value = 2
+    helper.characteristics[HEATING_COOLING_TARGET].value = 2
+
+    state = await helper.poll_and_get_state()
+    assert state.state == 'cool'
+    assert state.attributes['current_temperature'] == 21