[boschshc] Support for Compact Smart Plugs (#13528) (#13533)

* add thing definition with ID "smart-plug-compact"
* add constant for thing type UID
* extract abstract implementation for devices with power switch and
energy monitoring
* let in-wall switch handler and smart plug handler extend the abstract
implementation
* register new handler
* add method with boolean parameter to fetch initial state actively
* make BoschSHCDeviceHandler abstract
* add documentation
* add unit tests

closes #13528

Signed-off-by: David Pace <dev@davidpace.de>

bundles/org.openhab.binding.boschshc/README.md

@@ -4,9 +4,10 @@ Binding for the Bosch Smart Home.
 
 - [Bosch Smart Home Binding](#bosch-smart-home-binding)
   - [Supported Things](#supported-things)
-    - [In-Wall switches & Smart Plugs](#in-wall-switches-smart-plugs)
+    - [In-Wall Switch](#in-wall-switch)
-    - [TwinGuard smoke detector](#twinguard-smoke-detector)
+    - [Compact Smart Plug](#compact-smart-plug)
-    - [Door/Window contact](#door-window-contact)
+    - [Twinguard Smoke Detector](#twinguard-smoke-detector)
+    - [Door/Window Contact](#door-window-contact)
     - [Motion Detector](#motion-detector)
     - [Shutter Control](#shutter-control)
     - [Thermostat](#thermostat)
@@ -24,19 +25,31 @@ Binding for the Bosch Smart Home.
 
 ## Supported Things
 
-### In-Wall switches & Smart Plugs
+### In-Wall Switch
 
 A simple light control.
 
 **Thing Type ID**: `in-wall-switch`
 
-| Channel Type ID    | Item Type     | Writable | Description                                  |
+| Channel Type ID    | Item Type     | Writable | Description                                      |
-| ------------------ | ------------- | :------: | -------------------------------------------- |
+| ------------------ | ------------- | :------: | ------------------------------------------------ |
-| power-switch       | Switch        | ☑  | Current state of the switch.                 |
+| power-switch       | Switch        | ☑  | Current state of the switch.                     |
-| power-consumption  | Number:Power  | ☐  | Current power consumption (W) of the device. |
+| power-consumption  | Number:Power  | ☐  | Current power consumption (W) of the device.     |
-| energy-consumption | Number:Energy | ☐  | Energy consumption of the device.            |
+| energy-consumption | Number:Energy | ☐  | Cumulated energy consumption (Wh) of the device. |
 
-### TwinGuard smoke detector
+### Compact Smart Plug
+
+A compact smart plug with energy monitoring capabilities.
+
+**Thing Type ID**: `smart-plug-compact`
+
+| Channel Type ID    | Item Type     | Writable | Description                                      |
+| ------------------ | ------------- | :------: | ------------------------------------------------ |
+| power-switch       | Switch        | ☑  | Current state of the switch.                     |
+| power-consumption  | Number:Power  | ☐  | Current power consumption (W) of the device.     |
+| energy-consumption | Number:Energy | ☐  | Cumulated energy consumption (Wh) of the device. |
+
+### Twinguard smoke detector
 
 The Twinguard smoke detector warns you in case of fire and constantly monitors the air.
 
@@ -53,7 +66,7 @@ The Twinguard smoke detector warns you in case of fire and constantly monitors t
 | air-description    | String               | ☐  | Overall description of the air quality.                                                           |
 | combined-rating    | String               | ☐  | Combined rating of the air quality.                                                               |
 
-### Door/Window contact
+### Door/Window Contact
 
 Detects open windows and doors.
 

bundles/org.openhab.binding.boschshc/src/main/java/org/openhab/binding/boschshc/internal/devices/AbstractPowerSwitchHandler.java

@@ -0,0 +1,110 @@
+/**
+ * Copyright (c) 2010-2022 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.boschshc.internal.devices;
+
+import static org.openhab.binding.boschshc.internal.devices.BoschSHCBindingConstants.*;
+
+import java.util.List;
+
+import javax.measure.quantity.Energy;
+import javax.measure.quantity.Power;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.boschshc.internal.exceptions.BoschSHCException;
+import org.openhab.binding.boschshc.internal.services.powermeter.PowerMeterService;
+import org.openhab.binding.boschshc.internal.services.powermeter.dto.PowerMeterServiceState;
+import org.openhab.binding.boschshc.internal.services.powerswitch.PowerSwitchService;
+import org.openhab.binding.boschshc.internal.services.powerswitch.PowerSwitchState;
+import org.openhab.binding.boschshc.internal.services.powerswitch.dto.PowerSwitchServiceState;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.library.unit.Units;
+import org.openhab.core.thing.ChannelUID;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.types.Command;
+import org.openhab.core.types.State;
+
+/**
+ * Abstract handler implementation for devices with power switches and energy monitoring.
+ * <p>
+ * This implementation provides the functionality to
+ * <ul>
+ * <li>Switch the device on and off using the <code>PowerSwitch</code> service</li>
+ * <li>Measuring the current power consumption and the overall energy consumption using the <code>PowerMeter</code>
+ * service</li>
+ * </ul>
+ *
+ * @author David Pace - Initial contribution (extracted from LightControlHandler)
+ */
+@NonNullByDefault
+public abstract class AbstractPowerSwitchHandler extends BoschSHCDeviceHandler {
+
+    /**
+     * Service for switching the device on and off
+     */
+    private final PowerSwitchService powerSwitchService;
+
+    protected AbstractPowerSwitchHandler(Thing thing) {
+        super(thing);
+        this.powerSwitchService = new PowerSwitchService();
+    }
+
+    @Override
+    protected void initializeServices() throws BoschSHCException {
+        super.initializeServices();
+
+        this.registerService(this.powerSwitchService, this::updateChannels, List.of(CHANNEL_POWER_SWITCH), true);
+        this.createService(PowerMeterService::new, this::updateChannels,
+                List.of(CHANNEL_POWER_CONSUMPTION, CHANNEL_ENERGY_CONSUMPTION), true);
+    }
+
+    @Override
+    public void handleCommand(ChannelUID channelUID, Command command) {
+        super.handleCommand(channelUID, command);
+
+        switch (channelUID.getId()) {
+            case CHANNEL_POWER_SWITCH:
+                if (command instanceof OnOffType) {
+                    updatePowerSwitchState((OnOffType) command);
+                }
+                break;
+        }
+    }
+
+    /**
+     * Updates the channels which are linked to the {@link PowerMeterService} of the device.
+     *
+     * @param state Current state of {@link PowerMeterService}.
+     */
+    private void updateChannels(PowerMeterServiceState state) {
+        super.updateState(CHANNEL_POWER_CONSUMPTION, new QuantityType<Power>(state.powerConsumption, Units.WATT));
+        super.updateState(CHANNEL_ENERGY_CONSUMPTION,
+                new QuantityType<Energy>(state.energyConsumption, Units.WATT_HOUR));
+    }
+
+    /**
+     * Updates the channels which are linked to the {@link PowerSwitchService} of the device.
+     *
+     * @param state Current state of {@link PowerSwitchService}.
+     */
+    private void updateChannels(PowerSwitchServiceState state) {
+        State powerState = OnOffType.from(state.switchState.toString());
+        super.updateState(CHANNEL_POWER_SWITCH, powerState);
+    }
+
+    private void updatePowerSwitchState(OnOffType command) {
+        PowerSwitchServiceState state = new PowerSwitchServiceState();
+        state.switchState = PowerSwitchState.valueOf(command.toFullString());
+        this.updateServiceState(this.powerSwitchService, state);
+    }
+}

bundles/org.openhab.binding.boschshc/src/main/java/org/openhab/binding/boschshc/internal/devices/BoschSHCBindingConstants.java

@@ -44,6 +44,7 @@ public class BoschSHCBindingConstants {
     public static final ThingTypeUID THING_TYPE_CAMERA_EYES = new ThingTypeUID(BINDING_ID, "security-camera-eyes");
     public static final ThingTypeUID THING_TYPE_INTRUSION_DETECTION_SYSTEM = new ThingTypeUID(BINDING_ID,
             "intrusion-detection-system");
+    public static final ThingTypeUID THING_TYPE_SMART_PLUG_COMPACT = new ThingTypeUID(BINDING_ID, "smart-plug-compact");
 
     // List of all Channel IDs
     // Auto-generated from thing-types.xml via script, don't modify

bundles/org.openhab.binding.boschshc/src/main/java/org/openhab/binding/boschshc/internal/devices/BoschSHCDeviceHandler.java

@@ -40,7 +40,7 @@ import org.openhab.core.thing.ThingStatusDetail;
  *
  */
 @NonNullByDefault
-public class BoschSHCDeviceHandler extends BoschSHCHandler {
+public abstract class BoschSHCDeviceHandler extends BoschSHCHandler {
 
     /**
      * Bosch SHC configuration loaded from openHAB configuration.
@@ -85,6 +85,7 @@ public class BoschSHCDeviceHandler extends BoschSHCHandler {
      *
      * @return Unique id of the Bosch device.
      */
+    @Override
     public @Nullable String getBoschID() {
         if (config != null) {
             return config.id;

bundles/org.openhab.binding.boschshc/src/main/java/org/openhab/binding/boschshc/internal/devices/BoschSHCHandler.java

@@ -241,8 +241,29 @@ public abstract class BoschSHCHandler extends BaseThingHandler {
     protected <TService extends BoschSHCService<TState>, TState extends BoschSHCServiceState> TService createService(
             Supplier<TService> newService, Consumer<TState> stateUpdateListener, Collection<String> affectedChannels)
             throws BoschSHCException {
+        return createService(newService, stateUpdateListener, affectedChannels, false);
+    }
+
+    /**
+     * Creates and registers a new service for this device.
+     *
+     * @param <TService> Type of service.
+     * @param <TState> Type of service state.
+     * @param newService Supplier function to create a new instance of the service.
+     * @param stateUpdateListener Function to call when a state update was received
+     *            from the device.
+     * @param affectedChannels Channels which are affected by the state of this
+     *            service.
+     * @param shouldFetchInitialState indicates whether the initial state should be actively requested from the device
+     *            or service. Useful if state updates are not included in long poll results.
+     * @return Instance of registered service.
+     * @throws BoschSHCException
+     */
+    protected <TService extends BoschSHCService<TState>, TState extends BoschSHCServiceState> TService createService(
+            Supplier<TService> newService, Consumer<TState> stateUpdateListener, Collection<String> affectedChannels,
+            boolean shouldFetchInitialState) throws BoschSHCException {
         TService service = newService.get();
-        this.registerService(service, stateUpdateListener, affectedChannels);
+        this.registerService(service, stateUpdateListener, affectedChannels, shouldFetchInitialState);
         return service;
     }
 

bundles/org.openhab.binding.boschshc/src/main/java/org/openhab/binding/boschshc/internal/devices/BoschSHCHandlerFactory.java

@@ -26,6 +26,7 @@ import org.openhab.binding.boschshc.internal.devices.climatecontrol.ClimateContr
 import org.openhab.binding.boschshc.internal.devices.intrusion.IntrusionDetectionHandler;
 import org.openhab.binding.boschshc.internal.devices.lightcontrol.LightControlHandler;
 import org.openhab.binding.boschshc.internal.devices.motiondetector.MotionDetectorHandler;
+import org.openhab.binding.boschshc.internal.devices.plug.PlugHandler;
 import org.openhab.binding.boschshc.internal.devices.shuttercontrol.ShutterControlHandler;
 import org.openhab.binding.boschshc.internal.devices.thermostat.ThermostatHandler;
 import org.openhab.binding.boschshc.internal.devices.twinguard.TwinguardHandler;
@@ -47,7 +48,7 @@ import org.osgi.service.component.annotations.Component;
  * @author Stefan Kästle - Initial contribution
  * @author Christian Oeing - Added Shutter Control and ThermostatHandler; refactored handler mapping
  * @author Christian Oeing - Added WallThermostatHandler
- * @author David Pace - Added cameras and intrusion detection system
+ * @author David Pace - Added cameras, intrusion detection system and smart plugs
  */
 @NonNullByDefault
 @Component(configurationPid = "binding.boschshc", service = ThingHandlerFactory.class)
@@ -75,7 +76,8 @@ public class BoschSHCHandlerFactory extends BaseThingHandlerFactory {
             new ThingTypeHandlerMapping(THING_TYPE_WALL_THERMOSTAT, WallThermostatHandler::new),
             new ThingTypeHandlerMapping(THING_TYPE_CAMERA_360, CameraHandler::new),
             new ThingTypeHandlerMapping(THING_TYPE_CAMERA_EYES, CameraHandler::new),
-            new ThingTypeHandlerMapping(THING_TYPE_INTRUSION_DETECTION_SYSTEM, IntrusionDetectionHandler::new));
+            new ThingTypeHandlerMapping(THING_TYPE_INTRUSION_DETECTION_SYSTEM, IntrusionDetectionHandler::new),
+            new ThingTypeHandlerMapping(THING_TYPE_SMART_PLUG_COMPACT, PlugHandler::new));
 
     @Override
     public boolean supportsThingType(ThingTypeUID thingTypeUID) {

bundles/org.openhab.binding.boschshc/src/main/java/org/openhab/binding/boschshc/internal/devices/lightcontrol/LightControlHandler.java

@@ -12,28 +12,9 @@
  */
 package org.openhab.binding.boschshc.internal.devices.lightcontrol;
 
-import static org.openhab.binding.boschshc.internal.devices.BoschSHCBindingConstants.*;
-
-import java.util.List;
-
-import javax.measure.quantity.Energy;
-import javax.measure.quantity.Power;
-
 import org.eclipse.jdt.annotation.NonNullByDefault;
-import org.openhab.binding.boschshc.internal.devices.BoschSHCDeviceHandler;
+import org.openhab.binding.boschshc.internal.devices.AbstractPowerSwitchHandler;
-import org.openhab.binding.boschshc.internal.exceptions.BoschSHCException;
-import org.openhab.binding.boschshc.internal.services.powermeter.PowerMeterService;
-import org.openhab.binding.boschshc.internal.services.powermeter.dto.PowerMeterServiceState;
-import org.openhab.binding.boschshc.internal.services.powerswitch.PowerSwitchService;
-import org.openhab.binding.boschshc.internal.services.powerswitch.PowerSwitchState;
-import org.openhab.binding.boschshc.internal.services.powerswitch.dto.PowerSwitchServiceState;
-import org.openhab.core.library.types.OnOffType;
-import org.openhab.core.library.types.QuantityType;
-import org.openhab.core.library.unit.Units;
-import org.openhab.core.thing.ChannelUID;
 import org.openhab.core.thing.Thing;
-import org.openhab.core.types.Command;
-import org.openhab.core.types.State;
 
 /**
  * A simple light control.
@@ -41,61 +22,9 @@ import org.openhab.core.types.State;
  * @author Stefan Kästle - Initial contribution
  */
 @NonNullByDefault
-public class LightControlHandler extends BoschSHCDeviceHandler {
+public class LightControlHandler extends AbstractPowerSwitchHandler {
-
-    private final PowerSwitchService powerSwitchService;
 
     public LightControlHandler(Thing thing) {
         super(thing);
-        this.powerSwitchService = new PowerSwitchService();
-    }
-
-    @Override
-    protected void initializeServices() throws BoschSHCException {
-        super.initializeServices();
-
-        this.registerService(this.powerSwitchService, this::updateChannels, List.of(CHANNEL_POWER_SWITCH));
-        this.createService(PowerMeterService::new, this::updateChannels,
-                List.of(CHANNEL_POWER_CONSUMPTION, CHANNEL_ENERGY_CONSUMPTION));
-    }
-
-    @Override
-    public void handleCommand(ChannelUID channelUID, Command command) {
-        super.handleCommand(channelUID, command);
-
-        switch (channelUID.getId()) {
-            case CHANNEL_POWER_SWITCH:
-                if (command instanceof OnOffType) {
-                    updatePowerSwitchState((OnOffType) command);
-                }
-                break;
-        }
-    }
-
-    /**
-     * Updates the channels which are linked to the {@link PowerMeterService} of the device.
-     * 
-     * @param state Current state of {@link PowerMeterService}.
-     */
-    private void updateChannels(PowerMeterServiceState state) {
-        super.updateState(CHANNEL_POWER_CONSUMPTION, new QuantityType<Power>(state.powerConsumption, Units.WATT));
-        super.updateState(CHANNEL_ENERGY_CONSUMPTION,
-                new QuantityType<Energy>(state.energyConsumption, Units.WATT_HOUR));
-    }
-
-    /**
-     * Updates the channels which are linked to the {@link PowerSwitchService} of the device.
-     * 
-     * @param state Current state of {@link PowerSwitchService}.
-     */
-    private void updateChannels(PowerSwitchServiceState state) {
-        State powerState = OnOffType.from(state.switchState.toString());
-        super.updateState(CHANNEL_POWER_SWITCH, powerState);
-    }
-
-    private void updatePowerSwitchState(OnOffType command) {
-        PowerSwitchServiceState state = new PowerSwitchServiceState();
-        state.switchState = PowerSwitchState.valueOf(command.toFullString());
-        this.updateServiceState(this.powerSwitchService, state);
     }
 }

bundles/org.openhab.binding.boschshc/src/main/java/org/openhab/binding/boschshc/internal/devices/plug/PlugHandler.java

@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) 2010-2022 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.boschshc.internal.devices.plug;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.boschshc.internal.devices.AbstractPowerSwitchHandler;
+import org.openhab.core.thing.Thing;
+
+/**
+ * A handler for compact smart plugs.
+ *
+ * @author David Pace - Initial contribution
+ */
+@NonNullByDefault
+public class PlugHandler extends AbstractPowerSwitchHandler {
+
+    public PlugHandler(Thing thing) {
+        super(thing);
+    }
+}

bundles/org.openhab.binding.boschshc/src/main/resources/OH-INF/thing/thing-types.xml

@@ -30,6 +30,24 @@
 
 	</thing-type>
 
+	<thing-type id="smart-plug-compact">
+		<supported-bridge-type-refs>
+			<bridge-type-ref id="shc"/>
+		</supported-bridge-type-refs>
+
+		<label>Compact Smart Plug</label>
+		<description>A compact smart plug with energy monitoring capabilities.</description>
+
+		<channels>
+			<channel id="power-switch" typeId="system.power"/>
+			<channel id="power-consumption" typeId="power-consumption"/>
+			<channel id="energy-consumption" typeId="energy-consumption"/>
+		</channels>
+
+		<config-description-ref uri="thing-type:boschshc:device"/>
+
+	</thing-type>
+
 	<thing-type id="twinguard">
 		<supported-bridge-type-refs>
 			<bridge-type-ref id="shc"/>

bundles/org.openhab.binding.boschshc/src/test/java/org/openhab/binding/boschshc/internal/devices/AbstractBoschSHCDeviceHandlerTest.java

@@ -0,0 +1,35 @@
+/**
+ * Copyright (c) 2010-2022 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.boschshc.internal.devices;
+
+import org.openhab.core.config.core.Configuration;
+
+/**
+ * Abstract unit test implementation for device handlers.
+ *
+ * @author David Pace - Initial contribution
+ *
+ * @param <T> type of the device handler to be tested
+ */
+public abstract class AbstractBoschSHCDeviceHandlerTest<T extends BoschSHCDeviceHandler>
+        extends AbstractSHCHandlerTest<T> {
+
+    @Override
+    protected Configuration getConfiguration() {
+        Configuration configuration = super.getConfiguration();
+        configuration.put("id", getDeviceID());
+        return configuration;
+    }
+
+    protected abstract String getDeviceID();
+}

bundles/org.openhab.binding.boschshc/src/test/java/org/openhab/binding/boschshc/internal/devices/AbstractPowerSwitchHandlerTest.java

@@ -0,0 +1,118 @@
+/**
+ * Copyright (c) 2010-2022 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.boschshc.internal.devices;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.*;
+
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeoutException;
+
+import javax.measure.quantity.Energy;
+import javax.measure.quantity.Power;
+
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.openhab.binding.boschshc.internal.exceptions.BoschSHCException;
+import org.openhab.binding.boschshc.internal.services.powerswitch.PowerSwitchState;
+import org.openhab.binding.boschshc.internal.services.powerswitch.dto.PowerSwitchServiceState;
+import org.openhab.core.library.types.OnOffType;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.thing.ChannelUID;
+import org.openhab.core.thing.ThingTypeUID;
+import org.openhab.core.thing.ThingUID;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParser;
+
+/**
+ * Abstract unit test implementation for devices with power switches and energy monitoring.
+ *
+ * @author David Pace - Initial contribution
+ *
+ * @param <T> type of the handler to be tested
+ */
+public abstract class AbstractPowerSwitchHandlerTest<T extends AbstractPowerSwitchHandler>
+        extends AbstractBoschSHCDeviceHandlerTest<T> {
+
+    @Captor
+    private ArgumentCaptor<PowerSwitchServiceState> serviceStateCaptor;
+
+    @Captor
+    private ArgumentCaptor<QuantityType<Power>> powerCaptor;
+
+    @Captor
+    private ArgumentCaptor<QuantityType<Energy>> energyCaptor;
+
+    @Test
+    public void testHandleCommand()
+            throws InterruptedException, TimeoutException, ExecutionException, BoschSHCException {
+
+        when(getThing().getUID()).thenReturn(new ThingUID("boschshc", "abcdef"));
+
+        getFixture().handleCommand(new ChannelUID(getThing().getUID(), BoschSHCBindingConstants.CHANNEL_POWER_SWITCH),
+                OnOffType.ON);
+        verify(getBridgeHandler()).putState(eq(getDeviceID()), eq("PowerSwitch"), serviceStateCaptor.capture());
+        PowerSwitchServiceState state = serviceStateCaptor.getValue();
+        assertSame(PowerSwitchState.ON, state.switchState);
+
+        getFixture().handleCommand(new ChannelUID(new ThingUID(getThingTypeUID(), "abcdef"),
+                BoschSHCBindingConstants.CHANNEL_POWER_SWITCH), OnOffType.OFF);
+        verify(getBridgeHandler(), times(2)).putState(eq(getDeviceID()), eq("PowerSwitch"),
+                serviceStateCaptor.capture());
+        state = serviceStateCaptor.getValue();
+        assertSame(PowerSwitchState.OFF, state.switchState);
+    }
+
+    protected abstract ThingTypeUID getThingTypeUID();
+
+    @Test
+    public void testUpdateChannel_PowerSwitchState() {
+        when(getThing().getUID()).thenReturn(new ThingUID("boschshc", "abcdef"));
+
+        JsonElement jsonObject = JsonParser
+                .parseString("{\n" + "  \"@type\": \"powerSwitchState\",\n" + "  \"switchState\": \"ON\"\n" + "}");
+        getFixture().processUpdate("PowerSwitch", jsonObject);
+        verify(getCallback()).stateUpdated(
+                new ChannelUID(getThing().getUID(), BoschSHCBindingConstants.CHANNEL_POWER_SWITCH), OnOffType.ON);
+
+        jsonObject = JsonParser
+                .parseString("{\n" + "  \"@type\": \"powerSwitchState\",\n" + "  \"switchState\": \"OFF\"\n" + "}");
+        getFixture().processUpdate("PowerSwitch", jsonObject);
+        verify(getCallback()).stateUpdated(
+                new ChannelUID(getThing().getUID(), BoschSHCBindingConstants.CHANNEL_POWER_SWITCH), OnOffType.OFF);
+    }
+
+    @Test
+    public void testUpdateChannel_PowerMeterServiceState() {
+        when(getThing().getUID()).thenReturn(new ThingUID("boschshc", "abcdef"));
+
+        JsonElement jsonObject = JsonParser.parseString("{\n" + "  \"@type\": \"powerMeterState\",\n"
+                + "  \"powerConsumption\": \"23\",\n" + "  \"energyConsumption\": 42\n" + "}");
+        getFixture().processUpdate("PowerMeter", jsonObject);
+
+        verify(getCallback()).stateUpdated(
+                eq(new ChannelUID(getThing().getUID(), BoschSHCBindingConstants.CHANNEL_POWER_CONSUMPTION)),
+                powerCaptor.capture());
+        QuantityType<Power> powerValue = powerCaptor.getValue();
+        assertEquals(23, powerValue.intValue());
+
+        verify(getCallback()).stateUpdated(
+                eq(new ChannelUID(getThing().getUID(), BoschSHCBindingConstants.CHANNEL_ENERGY_CONSUMPTION)),
+                energyCaptor.capture());
+        QuantityType<Energy> energyValue = energyCaptor.getValue();
+        assertEquals(42, energyValue.intValue());
+    }
+}

bundles/org.openhab.binding.boschshc/src/test/java/org/openhab/binding/boschshc/internal/devices/AbstractSHCHandlerTest.java

@@ -0,0 +1,96 @@
+/**
+ * Copyright (c) 2010-2022 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.boschshc.internal.devices;
+
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.*;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.openhab.binding.boschshc.internal.devices.bridge.BridgeHandler;
+import org.openhab.core.config.core.Configuration;
+import org.openhab.core.thing.Bridge;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingStatus;
+import org.openhab.core.thing.ThingStatusDetail;
+import org.openhab.core.thing.ThingStatusInfo;
+import org.openhab.core.thing.ThingUID;
+import org.openhab.core.thing.binding.ThingHandlerCallback;
+
+/**
+ * Abstract unit test implementation for all types of handlers.
+ *
+ * @author David Pace - Initial contribution
+ *
+ * @param <T> type of the handler to be tested
+ */
+@ExtendWith(MockitoExtension.class)
+public abstract class AbstractSHCHandlerTest<T extends BoschSHCHandler> {
+
+    private T fixture;
+
+    @Mock
+    private Thing thing;
+
+    @Mock
+    private Bridge bridge;
+
+    @Mock
+    private BridgeHandler bridgeHandler;
+
+    @Mock
+    private ThingHandlerCallback callback;
+
+    @BeforeEach
+    public void beforeEach() {
+        fixture = createFixture();
+        when(thing.getBridgeUID()).thenReturn(new ThingUID("boschshc", "shc", "myBridgeUID"));
+        when(callback.getBridge(any())).thenReturn(bridge);
+        fixture.setCallback(callback);
+        when(bridge.getHandler()).thenReturn(bridgeHandler);
+        when(thing.getConfiguration()).thenReturn(getConfiguration());
+
+        fixture.initialize();
+    }
+
+    protected abstract T createFixture();
+
+    protected T getFixture() {
+        return fixture;
+    }
+
+    protected Configuration getConfiguration() {
+        return new Configuration();
+    }
+
+    protected Thing getThing() {
+        return thing;
+    }
+
+    public BridgeHandler getBridgeHandler() {
+        return bridgeHandler;
+    }
+
+    public ThingHandlerCallback getCallback() {
+        return callback;
+    }
+
+    @Test
+    public void testInitialize() {
+        ThingStatusInfo expectedStatusInfo = new ThingStatusInfo(ThingStatus.ONLINE, ThingStatusDetail.NONE, null);
+        verify(callback).statusUpdated(same(thing), eq(expectedStatusInfo));
+    }
+}

bundles/org.openhab.binding.boschshc/src/test/java/org/openhab/binding/boschshc/internal/devices/lightcontrol/LightControlHandlerTest.java

@@ -0,0 +1,43 @@
+/**
+ * Copyright (c) 2010-2022 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.boschshc.internal.devices.lightcontrol;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.boschshc.internal.devices.AbstractPowerSwitchHandlerTest;
+import org.openhab.binding.boschshc.internal.devices.BoschSHCBindingConstants;
+import org.openhab.core.thing.ThingTypeUID;
+
+/**
+ * Unit tests for {@link LightControlHandler}.
+ *
+ * @author David Pace - Initial contribution
+ *
+ */
+@NonNullByDefault
+public class LightControlHandlerTest extends AbstractPowerSwitchHandlerTest<LightControlHandler> {
+
+    @Override
+    protected ThingTypeUID getThingTypeUID() {
+        return BoschSHCBindingConstants.THING_TYPE_INWALL_SWITCH;
+    }
+
+    @Override
+    protected String getDeviceID() {
+        return "hdm:ZigBee:50325ffffe61d7b9c6e";
+    }
+
+    @Override
+    protected LightControlHandler createFixture() {
+        return new LightControlHandler(getThing());
+    }
+}

bundles/org.openhab.binding.boschshc/src/test/java/org/openhab/binding/boschshc/internal/devices/plug/PlugHandlerTest.java

@@ -0,0 +1,43 @@
+/**
+ * Copyright (c) 2010-2022 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.boschshc.internal.devices.plug;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.boschshc.internal.devices.AbstractPowerSwitchHandlerTest;
+import org.openhab.binding.boschshc.internal.devices.BoschSHCBindingConstants;
+import org.openhab.core.thing.ThingTypeUID;
+
+/**
+ * Unit tests for {@link PlugHandler}.
+ *
+ * @author David Pace - Initial contribution
+ *
+ */
+@NonNullByDefault
+public class PlugHandlerTest extends AbstractPowerSwitchHandlerTest<PlugHandler> {
+
+    @Override
+    protected PlugHandler createFixture() {
+        return new PlugHandler(getThing());
+    }
+
+    @Override
+    protected String getDeviceID() {
+        return "hdm:ZigBee:50325ffffe61d7b9c6e";
+    }
+
+    @Override
+    protected ThingTypeUID getThingTypeUID() {
+        return BoschSHCBindingConstants.THING_TYPE_SMART_PLUG_COMPACT;
+    }
+}