1 /*
2 * *************************************************************************************************************************************************************
3 *
4 * SteelBlue: DCI User Interfaces
5 * http://tidalwave.it/projects/steelblue
6 *
7 * Copyright (C) 2015 - 2025 by Tidalwave s.a.s. (http://tidalwave.it)
8 *
9 * *************************************************************************************************************************************************************
10 *
11 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
17 * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
18 *
19 * *************************************************************************************************************************************************************
20 *
21 * git clone https://bitbucket.org/tidalwave/steelblue-src
22 * git clone https://github.com/tidalwave-it/steelblue-src
23 *
24 * *************************************************************************************************************************************************************
25 */
26 package it.tidalwave.ui.core;
27
28 import java.beans.PropertyChangeSupport;
29 import java.util.function.BiConsumer;
30 import java.util.function.Consumer;
31 import it.tidalwave.ui.core.role.impl.MutableListenerSupport;
32 import lombok.experimental.Delegate;
33 import org.testng.annotations.Test;
34 import static org.mockito.Mockito.*;
35
36 /***************************************************************************************************************************************************************
37 *
38 * @author Fabrizio Giudici
39 *
40 **************************************************************************************************************************************************************/
41 public class MutableTest
42 {
43 static class MutableHelper implements Mutable
44 {
45 @Delegate
46 private final PropertyChangeSupport pcs = new PropertyChangeSupport(this);
47
48 @Delegate
49 private final MutableListenerSupport mls = new MutableListenerSupport(pcs);
50 }
51
52 @FunctionalInterface
53 static interface TriConsumer<T, S, U>
54 {
55 public void accept (T t, S s, U u);
56 }
57
58 @Test @SuppressWarnings("unchecked")
59 public void test_listeners()
60 {
61 // given
62 final var mutable = new MutableHelper();
63 final var consumer1 = mock(Consumer.class);
64 final var consumer2 = mock(BiConsumer.class);
65 final var consumer3 = mock(TriConsumer.class);
66 mutable.addListener((source, oldValue, newValue) -> consumer3.accept(source, oldValue, newValue));
67 mutable.addListener2((oldValue, newValue) -> consumer2.accept(oldValue, newValue));
68 mutable.addListener1(newValue -> consumer1.accept(newValue));
69 // when
70 mutable.firePropertyChange("property name", "old value", "new value");
71 // then
72 verify(consumer1).accept(eq("new value"));
73 verify(consumer2).accept(eq("old value"), eq("new value"));
74 verify(consumer3).accept(same(mutable), eq("old value"), eq("new value"));
75 }
76 }