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   1 /**
   2  * Copyright (c) 2010-2023 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.Objects;
  26 import java.util.Set;
  27 import java.util.concurrent.CompletableFuture;
  28 import java.util.concurrent.CountDownLatch;
  29 import java.util.concurrent.ScheduledExecutorService;
  30 import java.util.concurrent.ScheduledThreadPoolExecutor;
  31 import java.util.concurrent.TimeUnit;
  32
  33 import org.eclipse.jdt.annotation.NonNullByDefault;
  34 import org.eclipse.jdt.annotation.Nullable;
  35 import org.junit.jupiter.api.AfterEach;
  36 import org.junit.jupiter.api.BeforeEach;
  37 import org.junit.jupiter.api.Test;
  38 import org.junit.jupiter.api.extension.ExtendWith;
  39 import org.mockito.Mock;
  40 import org.mockito.junit.jupiter.MockitoExtension;
  41 import org.mockito.junit.jupiter.MockitoSettings;
  42 import org.mockito.quality.Strictness;
  43 import org.openhab.binding.mqtt.generic.AvailabilityTracker;
  44 import org.openhab.binding.mqtt.generic.ChannelStateUpdateListener;
  45 import org.openhab.binding.mqtt.generic.MqttChannelTypeProvider;
  46 import org.openhab.binding.mqtt.generic.TransformationServiceProvider;
  47 import org.openhab.binding.mqtt.homeassistant.internal.DiscoverComponents;
  48 import org.openhab.binding.mqtt.homeassistant.internal.DiscoverComponents.ComponentDiscovered;
  49 import org.openhab.binding.mqtt.homeassistant.internal.HaID;
  50 import org.openhab.binding.mqtt.homeassistant.internal.component.AbstractComponent;
  51 import org.openhab.binding.mqtt.homeassistant.internal.component.Switch;
  52 import org.openhab.binding.mqtt.homeassistant.internal.config.ChannelConfigurationTypeAdapterFactory;
  53 import org.openhab.core.io.transport.mqtt.MqttBrokerConnection;
  54 import org.openhab.core.io.transport.mqtt.MqttConnectionObserver;
  55 import org.openhab.core.io.transport.mqtt.MqttConnectionState;
  56 import org.openhab.core.library.types.OnOffType;
  57 import org.openhab.core.types.State;
  58 import org.openhab.core.types.UnDefType;
  59 import org.openhab.core.util.UIDUtils;
  60
  61 import com.google.gson.Gson;
  62 import com.google.gson.GsonBuilder;
  63
  64 /**
  65  * A full implementation test, that starts the embedded MQTT broker and publishes a homeassistant MQTT discovery device
  66  * tree.
  67  *
  68  * @author David Graeff - Initial contribution
  69  */
  70 @ExtendWith(MockitoExtension.class)
  71 @MockitoSettings(strictness = Strictness.LENIENT)
  72 @NonNullByDefault
  73 public class HomeAssistantMQTTImplementationTest extends MqttOSGiTest {
  74
  75     private @NonNullByDefault({}) MqttBrokerConnection haConnection;
  76     private int registeredTopics = 100;
  77     private @Nullable Throwable failure;
  78
  79     private @Mock @NonNullByDefault({}) ChannelStateUpdateListener channelStateUpdateListener;
  80     private @Mock @NonNullByDefault({}) AvailabilityTracker availabilityTracker;
  81     private @Mock @NonNullByDefault({}) TransformationServiceProvider transformationServiceProvider;
  82
  83     /**
  84      * Create an observer that fails the test as soon as the broker client connection changes its connection state
  85      * to something else then CONNECTED.
  86      */
  87     private final MqttConnectionObserver failIfChange = (state, error) -> assertThat(state,
  88             is(MqttConnectionState.CONNECTED));
  89     private final String testObjectTopic = "homeassistant/switch/node/"
  90             + ThingChannelConstants.TEST_HOME_ASSISTANT_THING.getId();
  91
  92     @Override
  93     @BeforeEach
  94     public void beforeEach() throws Exception {
  95         super.beforeEach();
  96
  97         haConnection = createBrokerConnection("ha_mqtt");
  98
  99         // If the connection state changes in between -> fail
 100         haConnection.addConnectionObserver(failIfChange);
 101
 102         // Create topic string and config for one example HA component (a Switch)
 103         final String config = "{'name':'testname','state_topic':'" + testObjectTopic + "/state','command_topic':'"
 104                 + testObjectTopic + "/set'}";
 105
 106         // Publish component configurations and component states to MQTT
 107         List<CompletableFuture<Boolean>> futures = new ArrayList<>();
 108         futures.add(publish(testObjectTopic + "/config", config));
 109         futures.add(publish(testObjectTopic + "/state", "ON"));
 110
 111         registeredTopics = futures.size();
 112         CompletableFuture.allOf(futures.toArray(new CompletableFuture[0])).get(2, TimeUnit.SECONDS);
 113
 114         failure = null;
 115
 116         doReturn(null).when(transformationServiceProvider).getTransformationService(any());
 117     }
 118
 119     @Override
 120     @AfterEach
 121     public void afterEach() throws Exception {
 122         if (haConnection != null) {
 123             haConnection.removeConnectionObserver(failIfChange);
 124             haConnection.stop().get(5, TimeUnit.SECONDS);
 125         }
 126
 127         super.afterEach();
 128     }
 129
 130     @Test
 131     public void reconnectTest() throws Exception {
 132         haConnection.removeConnectionObserver(failIfChange);
 133         haConnection.stop().get(5, TimeUnit.SECONDS);
 134         haConnection = createBrokerConnection("ha_mqtt");
 135     }
 136
 137     @Test
 138     public void retrieveAllTopics() throws Exception {
 139         CountDownLatch c = new CountDownLatch(registeredTopics);
 140         haConnection.subscribe("homeassistant/+/+/" + ThingChannelConstants.TEST_HOME_ASSISTANT_THING.getId() + "/#",
 141                 (topic, payload) -> c.countDown()).get(5, TimeUnit.SECONDS);
 142         assertTrue(c.await(2, TimeUnit.SECONDS),
 143                 "Connection " + haConnection.getClientId() + " not retrieving all topics");
 144     }
 145
 146     @Test
 147     public void parseHATree() throws Exception {
 148         MqttChannelTypeProvider channelTypeProvider = mock(MqttChannelTypeProvider.class);
 149
 150         final Map<String, AbstractComponent<?>> haComponents = new HashMap<>();
 151         Gson gson = new GsonBuilder().registerTypeAdapterFactory(new ChannelConfigurationTypeAdapterFactory()).create();
 152
 153         ScheduledExecutorService scheduler = new ScheduledThreadPoolExecutor(4);
 154         DiscoverComponents discover = spy(new DiscoverComponents(ThingChannelConstants.TEST_HOME_ASSISTANT_THING,
 155                 scheduler, channelStateUpdateListener, availabilityTracker, gson, transformationServiceProvider));
 156
 157         // The DiscoverComponents object calls ComponentDiscovered callbacks.
 158         // In the following implementation we add the found component to the `haComponents` map
 159         // and add the types to the channelTypeProvider, like in the real Thing handler.
 160         final CountDownLatch latch = new CountDownLatch(1);
 161         ComponentDiscovered cd = (haID, c) -> {
 162             haComponents.put(c.getGroupUID().getId(), c);
 163             c.addChannelTypes(channelTypeProvider);
 164             channelTypeProvider.setChannelGroupType(Objects.requireNonNull(c.getGroupTypeUID()),
 165                     Objects.requireNonNull(c.getType()));
 166             latch.countDown();
 167         };
 168
 169         // Start the discovery for 2000ms. Forced timeout after 4000ms.
 170         HaID haID = new HaID(testObjectTopic + "/config");
 171         CompletableFuture<Void> future = discover.startDiscovery(haConnection, 2000, Set.of(haID), cd).thenRun(() -> {
 172         }).exceptionally(e -> {
 173             failure = e;
 174             return null;
 175         });
 176
 177         assertTrue(latch.await(4, TimeUnit.SECONDS));
 178         future.get(5, TimeUnit.SECONDS);
 179
 180         // No failure expected and one discovered result
 181         assertNull(failure);
 182         assertThat(haComponents.size(), is(1));
 183
 184         // For the switch component we should have one channel group type and one channel type
 185         // setChannelGroupType is called once above
 186         verify(channelTypeProvider, times(2)).setChannelGroupType(any(), any());
 187         verify(channelTypeProvider, times(1)).setChannelType(any(), any());
 188
 189         String channelGroupId = UIDUtils
 190                 .encode("node_" + ThingChannelConstants.TEST_HOME_ASSISTANT_THING.getId() + "_switch");
 191
 192         State value = haComponents.get(channelGroupId).getChannel(Switch.SWITCH_CHANNEL_ID).getState().getCache()
 193                 .getChannelState();
 194         assertThat(value, is(UnDefType.UNDEF));
 195
 196         haComponents.values().stream().map(e -> e.start(haConnection, scheduler, 100))
 197                 .reduce(CompletableFuture.completedFuture(null), (a, v) -> a.thenCompose(b -> v)).exceptionally(e -> {
 198                     failure = e;
 199                     return null;
 200                 }).get();
 201
 202         // We should have received the retained value, while subscribing to the channels MQTT state topic.
 203         verify(channelStateUpdateListener, timeout(4000).times(1)).updateChannelState(any(), any());
 204
 205         // Value should be ON now.
 206         value = haComponents.get(channelGroupId).getChannel(Switch.SWITCH_CHANNEL_ID).getState().getCache()
 207                 .getChannelState();
 208         assertThat(value, is(OnOffType.ON));
 209     }
 210 }