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   1 /**
   2  * Copyright (c) 2010-2020 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.homie.generic.internal.mapping;
  14
  15 import static org.hamcrest.CoreMatchers.is;
  16 import static org.junit.Assert.assertThat;
  17 import static org.mockito.ArgumentMatchers.*;
  18 import static org.mockito.Mockito.*;
  19 import static org.mockito.MockitoAnnotations.initMocks;
  20
  21 import java.util.concurrent.CompletableFuture;
  22 import java.util.function.Function;
  23
  24 import org.eclipse.jdt.annotation.Nullable;
  25 import org.junit.Before;
  26 import org.junit.Test;
  27 import org.mockito.Mock;
  28 import org.openhab.binding.mqtt.generic.tools.ChildMap;
  29 import org.openhab.binding.mqtt.homie.internal.handler.ThingChannelConstants;
  30 import org.openhab.binding.mqtt.homie.internal.homie300.DeviceCallback;
  31 import org.openhab.binding.mqtt.homie.internal.homie300.Node;
  32 import org.openhab.binding.mqtt.homie.internal.homie300.NodeAttributes;
  33
  34 /**
  35  * Tests cases for {@link HomieChildMap}.
  36  *
  37  * @author David Graeff - Initial contribution
  38  */
  39 public class HomieChildMapTests {
  40     private @Mock DeviceCallback callback;
  41
  42     private final String deviceID = ThingChannelConstants.TEST_HOMIE_THING.getId();
  43     private final String deviceTopic = "homie/" + deviceID;
  44
  45     // A completed future is returned for a subscribe call to the attributes
  46     final CompletableFuture<@Nullable Void> future = CompletableFuture.completedFuture(null);
  47
  48     ChildMap<Node> subject = new ChildMap<>();
  49
  50     private Node createNode(String id) {
  51         Node node = new Node(deviceTopic, id, ThingChannelConstants.TEST_HOMIE_THING, callback,
  52                 spy(new NodeAttributes()));
  53         doReturn(future).when(node.attributes).subscribeAndReceive(any(), any(), anyString(), any(), anyInt());
  54         doReturn(future).when(node.attributes).unsubscribe();
  55         return node;
  56     }
  57
  58     private void removedNode(Node node) {
  59         callback.nodeRemoved(node);
  60     }
  61
  62     @Before
  63     public void setUp() {
  64         initMocks(this);
  65     }
  66
  67     public static class AddedAction implements Function<Node, CompletableFuture<Void>> {
  68         @Override
  69         public CompletableFuture<Void> apply(Node t) {
  70             return CompletableFuture.completedFuture(null);
  71         }
  72     }
  73
  74     @Test
  75     public void testArrayToSubtopicCreateAndRemove() {
  76         AddedAction addedAction = spy(new AddedAction());
  77
  78         // Assign "abc,def" to the
  79         subject.apply(new String[] { "abc", "def" }, addedAction, this::createNode, this::removedNode);
  80
  81         assertThat(future.isDone(), is(true));
  82         assertThat(subject.get("abc").nodeID, is("abc"));
  83         assertThat(subject.get("def").nodeID, is("def"));
  84
  85         verify(addedAction, times(2)).apply(any());
  86
  87         Node soonToBeRemoved = subject.get("def");
  88         subject.apply(new String[] { "abc" }, addedAction, this::createNode, this::removedNode);
  89         verify(callback).nodeRemoved(eq(soonToBeRemoved));
  90     }
  91 }