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   1 /**
   2  * Copyright (c) 2010-2024 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.mqtt.homeassistant;
  14
  15 import static org.hamcrest.CoreMatchers.is;
  16 import static org.hamcrest.MatcherAssert.assertThat;
  17 import static org.junit.jupiter.api.Assertions.*;
  18 import static org.mockito.ArgumentMatchers.any;
  19 import static org.mockito.Mockito.*;
  20
  21 import java.util.ArrayList;
  22 import java.util.HashMap;
  23 import java.util.List;
  24 import java.util.Map;
  25 import java.util.Set;
  26 import java.util.concurrent.CompletableFuture;
  27 import java.util.concurrent.CountDownLatch;
  28 import java.util.concurrent.ScheduledExecutorService;
  29 import java.util.concurrent.ScheduledThreadPoolExecutor;
  30 import java.util.concurrent.TimeUnit;
  31
  32 import org.eclipse.jdt.annotation.NonNullByDefault;
  33 import org.eclipse.jdt.annotation.Nullable;
  34 import org.junit.jupiter.api.AfterEach;
  35 import org.junit.jupiter.api.BeforeEach;
  36 import org.junit.jupiter.api.Test;
  37 import org.junit.jupiter.api.extension.ExtendWith;
  38 import org.mockito.Mock;
  39 import org.mockito.junit.jupiter.MockitoExtension;
  40 import org.mockito.junit.jupiter.MockitoSettings;
  41 import org.mockito.quality.Strictness;
  42 import org.openhab.binding.mqtt.generic.AvailabilityTracker;
  43 import org.openhab.binding.mqtt.generic.ChannelStateUpdateListener;
  44 import org.openhab.binding.mqtt.generic.MqttChannelTypeProvider;
  45 import org.openhab.binding.mqtt.homeassistant.internal.DiscoverComponents;
  46 import org.openhab.binding.mqtt.homeassistant.internal.DiscoverComponents.ComponentDiscovered;
  47 import org.openhab.binding.mqtt.homeassistant.internal.HaID;
  48 import org.openhab.binding.mqtt.homeassistant.internal.component.AbstractComponent;
  49 import org.openhab.binding.mqtt.homeassistant.internal.component.Switch;
  50 import org.openhab.binding.mqtt.homeassistant.internal.config.ChannelConfigurationTypeAdapterFactory;
  51 import org.openhab.core.io.transport.mqtt.MqttBrokerConnection;
  52 import org.openhab.core.io.transport.mqtt.MqttConnectionObserver;
  53 import org.openhab.core.io.transport.mqtt.MqttConnectionState;
  54 import org.openhab.core.library.types.OnOffType;
  55 import org.openhab.core.types.State;
  56 import org.openhab.core.types.UnDefType;
  57
  58 import com.google.gson.Gson;
  59 import com.google.gson.GsonBuilder;
  60 import com.hubspot.jinjava.Jinjava;
  61
  62 /**
  63  * A full implementation test, that starts the embedded MQTT broker and publishes a homeassistant MQTT discovery device
  64  * tree.
  65  *
  66  * @author David Graeff - Initial contribution
  67  */
  68 @ExtendWith(MockitoExtension.class)
  69 @MockitoSettings(strictness = Strictness.LENIENT)
  70 @NonNullByDefault
  71 public class HomeAssistantMQTTImplementationTest extends MqttOSGiTest {
  72
  73     private @NonNullByDefault({}) MqttBrokerConnection haConnection;
  74     private int registeredTopics = 100;
  75     private @Nullable Throwable failure;
  76
  77     private @Mock @NonNullByDefault({}) ChannelStateUpdateListener channelStateUpdateListener;
  78     private @Mock @NonNullByDefault({}) AvailabilityTracker availabilityTracker;
  79
  80     /**
  81      * Create an observer that fails the test as soon as the broker client connection changes its connection state
  82      * to something else then CONNECTED.
  83      */
  84     private final MqttConnectionObserver failIfChange = (state, error) -> assertThat(state,
  85             is(MqttConnectionState.CONNECTED));
  86     private final String testObjectTopic = "homeassistant/switch/node/"
  87             + ThingChannelConstants.TEST_HOME_ASSISTANT_THING.getId();
  88
  89     @Override
  90     @BeforeEach
  91     public void beforeEach() throws Exception {
  92         super.beforeEach();
  93
  94         haConnection = createBrokerConnection("ha_mqtt");
  95
  96         // If the connection state changes in between -> fail
  97         haConnection.addConnectionObserver(failIfChange);
  98
  99         // Create topic string and config for one example HA component (a Switch)
 100         final String config = "{'name':'testname','state_topic':'" + testObjectTopic + "/state','command_topic':'"
 101                 + testObjectTopic + "/set'}";
 102
 103         // Publish component configurations and component states to MQTT
 104         List<CompletableFuture<Boolean>> futures = new ArrayList<>();
 105         futures.add(publish(testObjectTopic + "/config", config));
 106         futures.add(publish(testObjectTopic + "/state", "ON"));
 107
 108         registeredTopics = futures.size();
 109         CompletableFuture.allOf(futures.toArray(new CompletableFuture[0])).get(2, TimeUnit.SECONDS);
 110
 111         failure = null;
 112     }
 113
 114     @Override
 115     @AfterEach
 116     public void afterEach() throws Exception {
 117         if (haConnection != null) {
 118             haConnection.removeConnectionObserver(failIfChange);
 119             haConnection.stop().get(5, TimeUnit.SECONDS);
 120         }
 121
 122         super.afterEach();
 123     }
 124
 125     @Test
 126     public void reconnectTest() throws Exception {
 127         haConnection.removeConnectionObserver(failIfChange);
 128         haConnection.stop().get(5, TimeUnit.SECONDS);
 129         haConnection = createBrokerConnection("ha_mqtt");
 130     }
 131
 132     @Test
 133     public void retrieveAllTopics() throws Exception {
 134         CountDownLatch c = new CountDownLatch(registeredTopics);
 135         haConnection.subscribe("homeassistant/+/+/" + ThingChannelConstants.TEST_HOME_ASSISTANT_THING.getId() + "/#",
 136                 (topic, payload) -> c.countDown()).get(5, TimeUnit.SECONDS);
 137         assertTrue(c.await(2, TimeUnit.SECONDS),
 138                 "Connection " + haConnection.getClientId() + " not retrieving all topics");
 139     }
 140
 141     @Test
 142     public void parseHATree() throws Exception {
 143         MqttChannelTypeProvider channelTypeProvider = mock(MqttChannelTypeProvider.class);
 144
 145         final Map<String, AbstractComponent<?>> haComponents = new HashMap<>();
 146         Gson gson = new GsonBuilder().registerTypeAdapterFactory(new ChannelConfigurationTypeAdapterFactory()).create();
 147         Jinjava jinjava = new Jinjava();
 148
 149         ScheduledExecutorService scheduler = new ScheduledThreadPoolExecutor(4);
 150         DiscoverComponents discover = spy(new DiscoverComponents(ThingChannelConstants.TEST_HOME_ASSISTANT_THING,
 151                 scheduler, channelStateUpdateListener, availabilityTracker, gson, jinjava, true));
 152
 153         // The DiscoverComponents object calls ComponentDiscovered callbacks.
 154         // In the following implementation we add the found component to the `haComponents` map
 155         // and add the types to the channelTypeProvider, like in the real Thing handler.
 156         final CountDownLatch latch = new CountDownLatch(1);
 157         ComponentDiscovered cd = (haID, c) -> {
 158             haComponents.put(c.getGroupId(), c);
 159             latch.countDown();
 160         };
 161
 162         // Start the discovery for 2000ms. Forced timeout after 4000ms.
 163         HaID haID = new HaID(testObjectTopic + "/config");
 164         CompletableFuture<Void> future = discover.startDiscovery(haConnection, 2000, Set.of(haID), cd).thenRun(() -> {
 165         }).exceptionally(e -> {
 166             failure = e;
 167             return null;
 168         });
 169
 170         assertTrue(latch.await(4, TimeUnit.SECONDS));
 171         future.get(5, TimeUnit.SECONDS);
 172
 173         // No failure expected and one discovered result
 174         assertNull(failure);
 175         assertThat(haComponents.size(), is(1));
 176
 177         String channelGroupId = "switch_" + ThingChannelConstants.TEST_HOME_ASSISTANT_THING.getId();
 178         String channelId = Switch.SWITCH_CHANNEL_ID;
 179
 180         State value = haComponents.get(channelGroupId).getChannel(channelGroupId).getState().getCache()
 181                 .getChannelState();
 182         assertThat(value, is(UnDefType.UNDEF));
 183
 184         haComponents.values().stream().map(e -> e.start(haConnection, scheduler, 100))
 185                 .reduce(CompletableFuture.completedFuture(null), (a, v) -> a.thenCompose(b -> v)).exceptionally(e -> {
 186                     failure = e;
 187                     return null;
 188                 }).get();
 189
 190         // We should have received the retained value, while subscribing to the channels MQTT state topic.
 191         verify(channelStateUpdateListener, timeout(4000).times(1)).updateChannelState(any(), any());
 192
 193         // Value should be ON now.
 194         value = haComponents.get(channelGroupId).getChannel(channelGroupId).getState().getCache().getChannelState();
 195         assertThat(value, is(OnOffType.ON));
 196     }
 197 }