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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.modbus.tests;
  14
  15 import static org.hamcrest.CoreMatchers.*;
  16 import static org.hamcrest.MatcherAssert.assertThat;
  17 import static org.hamcrest.core.Is.is;
  18 import static org.hamcrest.core.IsInstanceOf.instanceOf;
  19 import static org.junit.jupiter.api.Assertions.*;
  20 import static org.mockito.ArgumentMatchers.any;
  21 import static org.mockito.Mockito.*;
  22
  23 import java.util.ArrayList;
  24 import java.util.Collections;
  25 import java.util.Dictionary;
  26 import java.util.HashMap;
  27 import java.util.HashSet;
  28 import java.util.Hashtable;
  29 import java.util.List;
  30 import java.util.Map;
  31 import java.util.Set;
  32
  33 import org.eclipse.jdt.annotation.NonNull;
  34 import org.eclipse.jdt.annotation.NonNullByDefault;
  35 import org.eclipse.jdt.annotation.Nullable;
  36 import org.junit.jupiter.api.AfterEach;
  37 import org.junit.jupiter.api.BeforeEach;
  38 import org.junit.jupiter.api.extension.ExtendWith;
  39 import org.mockito.Mock;
  40 import org.mockito.Mockito;
  41 import org.mockito.junit.jupiter.MockitoExtension;
  42 import org.mockito.junit.jupiter.MockitoSettings;
  43 import org.mockito.quality.Strictness;
  44 import org.openhab.binding.modbus.internal.ModbusHandlerFactory;
  45 import org.openhab.core.events.Event;
  46 import org.openhab.core.events.EventFilter;
  47 import org.openhab.core.events.EventSubscriber;
  48 import org.openhab.core.io.transport.modbus.ModbusCommunicationInterface;
  49 import org.openhab.core.io.transport.modbus.ModbusManager;
  50 import org.openhab.core.items.Item;
  51 import org.openhab.core.items.ItemProvider;
  52 import org.openhab.core.items.ItemRegistry;
  53 import org.openhab.core.items.ManagedItemProvider;
  54 import org.openhab.core.items.events.ItemStateEvent;
  55 import org.openhab.core.library.CoreItemFactory;
  56 import org.openhab.core.test.java.JavaOSGiTest;
  57 import org.openhab.core.thing.ChannelUID;
  58 import org.openhab.core.thing.ManagedThingProvider;
  59 import org.openhab.core.thing.Thing;
  60 import org.openhab.core.thing.ThingProvider;
  61 import org.openhab.core.thing.binding.ThingHandler;
  62 import org.openhab.core.thing.binding.ThingHandlerFactory;
  63 import org.openhab.core.thing.link.AbstractLink;
  64 import org.openhab.core.thing.link.ItemChannelLink;
  65 import org.openhab.core.thing.link.ItemChannelLinkProvider;
  66 import org.openhab.core.thing.link.ItemChannelLinkRegistry;
  67 import org.openhab.core.thing.link.ManagedItemChannelLinkProvider;
  68 import org.openhab.core.thing.type.ChannelTypeUID;
  69 import org.openhab.core.transform.TransformationService;
  70 import org.openhab.core.types.State;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73
  74 /**
  75  * @author Sami Salonen - Initial contribution
  76  */
  77 @ExtendWith(MockitoExtension.class)
  78 @MockitoSettings(strictness = Strictness.LENIENT)
  79 @NonNullByDefault
  80 public abstract class AbstractModbusOSGiTest extends JavaOSGiTest {
  81
  82     /**
  83      * When Mockito is used for mocking {@link ThingHandler}s it has to be able to load the {@link ChannelTypeUID}
  84      * class. Bnd will add the package to the generated manifest when the class is referenced here.
  85      */
  86     static void mockitoPackageImport() {
  87         ChannelTypeUID.class.getClass();
  88     }
  89
  90     private static class StateSubscriber implements EventSubscriber {
  91
  92         private final Logger logger = LoggerFactory.getLogger(StateSubscriber.class);
  93
  94         public Map<String, List<State>> stateUpdates = new HashMap<>();
  95
  96         @Override
  97         public Set<@NonNull String> getSubscribedEventTypes() {
  98             return Collections.singleton(ItemStateEvent.TYPE);
  99         }
 100
 101         @Override
 102         public @Nullable EventFilter getEventFilter() {
 103             return null;
 104         }
 105
 106         @Override
 107         public void receive(Event event) {
 108             // Expecting only state updates in the tests
 109             assertThat(event, is(instanceOf(ItemStateEvent.class)));
 110             ItemStateEvent stateEvent = (ItemStateEvent) event;
 111             logger.trace("Captured event: {} of type {}. Payload: {}", event,
 112                     stateEvent.getItemState().getClass().getSimpleName(), event.getPayload());
 113             stateUpdates.computeIfAbsent(stateEvent.getItemName(), item -> new ArrayList<>())
 114                     .add(stateEvent.getItemState());
 115         }
 116     }
 117
 118     private final Logger logger = LoggerFactory.getLogger(AbstractModbusOSGiTest.class);
 119
 120     protected @Mock @NonNullByDefault({}) ModbusManager mockedModbusManager;
 121     protected @NonNullByDefault({}) ModbusManager realModbusManager;
 122     protected @NonNullByDefault({}) ManagedThingProvider thingProvider;
 123     protected @NonNullByDefault({}) ManagedItemProvider itemProvider;
 124     protected @NonNullByDefault({}) ManagedItemChannelLinkProvider itemChannelLinkProvider;
 125     protected @NonNullByDefault({}) ItemRegistry itemRegistry;
 126     protected @NonNullByDefault({}) ItemChannelLinkRegistry itemChannelLinkRegistry;
 127     protected @NonNullByDefault({}) CoreItemFactory coreItemFactory;
 128
 129     private Set<Item> addedItems = new HashSet<>();
 130     private Set<Thing> addedThings = new HashSet<>();
 131     private Set<ItemChannelLink> addedLinks = new HashSet<>();
 132     private StateSubscriber stateSubscriber = new StateSubscriber();
 133
 134     protected @Mock @NonNullByDefault({}) ModbusCommunicationInterface comms;
 135
 136     /**
 137      * Before each test, configure mocked services
 138      */
 139     @BeforeEach
 140     public void setUpAbstractModbusOSGiTest() {
 141         logger.debug("setUpAbstractModbusOSGiTest BEGIN");
 142         registerVolatileStorageService();
 143         registerService(mockedModbusManager);
 144         registerService(stateSubscriber);
 145
 146         swapModbusManagerToMocked();
 147
 148         thingProvider = getService(ThingProvider.class, ManagedThingProvider.class);
 149         assertThat("Could not get ManagedThingProvider", thingProvider, is(notNullValue()));
 150         itemProvider = getService(ItemProvider.class, ManagedItemProvider.class);
 151         assertThat("Could not get ManagedItemProvider", itemProvider, is(notNullValue()));
 152         itemChannelLinkProvider = getService(ItemChannelLinkProvider.class, ManagedItemChannelLinkProvider.class);
 153         assertThat("Could not get ManagedItemChannelLinkProvider", itemChannelLinkProvider, is(notNullValue()));
 154         itemRegistry = getService(ItemRegistry.class);
 155         assertThat("Could not get ItemRegistry", itemRegistry, is(notNullValue()));
 156         itemChannelLinkRegistry = getService(ItemChannelLinkRegistry.class);
 157         assertThat("Could not get ItemChannelLinkRegistry", itemChannelLinkRegistry, is(notNullValue()));
 158
 159         coreItemFactory = new CoreItemFactory();
 160
 161         // Clean slate for all tests
 162         reset(mockedModbusManager);
 163
 164         stateSubscriber.stateUpdates.clear();
 165         logger.debug("setUpAbstractModbusOSGiTest END");
 166     }
 167
 168     @AfterEach
 169     public void tearDownAbstractModbusOSGiTest() throws Exception {
 170         logger.debug("tearDownAbstractModbusOSGiTest BEGIN");
 171         swapModbusManagerToReal();
 172         for (Item item : addedItems) {
 173             assertNotNull(itemProvider.remove(item.getName()));
 174         }
 175         for (Thing thing : addedThings) {
 176             disposeThing(thing);
 177         }
 178         for (ItemChannelLink link : addedLinks) {
 179             logger.debug("Unlinking {} <-> {}", link.getItemName(), link.getLinkedUID());
 180             assertNotNull(itemChannelLinkProvider.remove(link.getUID()));
 181         }
 182         logger.debug("tearDownAbstractModbusOSGiTest END");
 183     }
 184
 185     protected void addThing(Thing thing) {
 186         assertThat(addedThings.contains(thing), not(equalTo(true)));
 187         ThingHandler mockHandler = thing.getHandler();
 188         if (mockHandler != null) {
 189             // If there is a handler attached to fresh thing, it should be mocked (this pattern is used with some tests)
 190             assertThat(Mockito.mockingDetails(thing.getHandler()).isMock(), is(equalTo(true)));
 191         }
 192
 193         thingProvider.add(thing);
 194         waitForAssert(() -> assertThat(thing.getHandler(), notNullValue()));
 195         assertThat(thing.getConfiguration(), is(notNullValue()));
 196         addedThings.add(thing);
 197         if (mockHandler != null) {
 198             // Re-attach mock handler
 199             ThingHandler realHandlerInitedByCore = thing.getHandler();
 200             assertNotNull(realHandlerInitedByCore);
 201             assertNotSame(realHandlerInitedByCore, mockHandler);
 202             realHandlerInitedByCore.dispose();
 203             thing.setHandler(mockHandler);
 204         }
 205     }
 206
 207     protected void disposeThing(Thing thing) {
 208         thingProvider.remove(thing.getUID());
 209     }
 210
 211     protected void addItem(Item item) {
 212         assertThat(addedItems.contains(item), not(equalTo(true)));
 213         itemProvider.add(item);
 214         addedItems.add(item);
 215     }
 216
 217     protected void linkItem(String itemName, ChannelUID channelUID) {
 218         logger.debug("Linking {} <-> {}", itemName, channelUID);
 219         ItemChannelLink link = new ItemChannelLink(itemName, channelUID);
 220         assertThat(addedLinks.contains(link), not(equalTo(true)));
 221         itemChannelLinkProvider.add(link);
 222         waitForAssert(() -> assertThat(itemChannelLinkRegistry.get(AbstractLink.getIDFor(itemName, channelUID)),
 223                 is(notNullValue())));
 224         addedLinks.add(link);
 225     }
 226
 227     protected @Nullable List<State> getStateUpdates(String itemName) {
 228         return stateSubscriber.stateUpdates.get(itemName);
 229     }
 230
 231     protected void mockTransformation(String name, TransformationService service) {
 232         Dictionary<String, Object> params = new Hashtable<>();
 233         params.put("openhab.transform", name);
 234         registerService(service, params);
 235     }
 236
 237     protected void mockCommsToModbusManager() {
 238         assert comms != null;
 239         doReturn(comms).when(mockedModbusManager).newModbusCommunicationInterface(any(), any());
 240     }
 241
 242     protected void swapModbusManagerToMocked() {
 243         assertNull(realModbusManager);
 244         realModbusManager = getService(ModbusManager.class);
 245         assertThat("Could not get ModbusManager", realModbusManager, is(notNullValue()));
 246         assertThat("Could not get ModbusManagerImpl", realModbusManager.getClass().getSimpleName(),
 247                 is(equalTo("ModbusManagerImpl")));
 248         assertNotNull(realModbusManager);
 249
 250         ModbusHandlerFactory modbusHandlerFactory = getService(ThingHandlerFactory.class, ModbusHandlerFactory.class);
 251         assertThat("Could not get ModbusHandlerFactory", modbusHandlerFactory, is(notNullValue()));
 252         assertNotNull(modbusHandlerFactory);
 253         modbusHandlerFactory.unsetModbusManager(realModbusManager);
 254         modbusHandlerFactory.setModbusManager(mockedModbusManager);
 255     }
 256
 257     protected void swapModbusManagerToReal() {
 258         assertNotNull(realModbusManager);
 259         ModbusHandlerFactory modbusHandlerFactory = getService(ThingHandlerFactory.class, ModbusHandlerFactory.class);
 260         assertThat("Could not get ModbusHandlerFactory", modbusHandlerFactory, is(notNullValue()));
 261         assertNotNull(modbusHandlerFactory);
 262         modbusHandlerFactory.unsetModbusManager(mockedModbusManager);
 263         modbusHandlerFactory.setModbusManager(realModbusManager);
 264     }
 265 }