PropertyChangeRegistryTest.java revision 4d4979490e1fa374c0d7f3599fed0a9e83a579d0 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package android.databinding.testapp;
17
18import android.databinding.PropertyChangeRegistry;
19import android.databinding.testapp.databinding.BasicBindingBinding;
20
21import android.databinding.Observable;
22import android.databinding.Observable.OnPropertyChangedCallback;
23
24public class PropertyChangeRegistryTest extends BaseDataBinderTest<BasicBindingBinding> {
25
26    private int notificationCount = 0;
27
28    public PropertyChangeRegistryTest() {
29        super(BasicBindingBinding.class);
30    }
31
32    public void testNotifyChanged() {
33        PropertyChangeRegistry propertyChangeRegistry = new PropertyChangeRegistry();
34
35        final Observable observableObj = new Observable() {
36            @Override
37            public void addOnPropertyChangedCallback(
38                    OnPropertyChangedCallback OnPropertyChangedCallback) {
39            }
40
41            @Override
42            public void removeOnPropertyChangedCallback(
43                    OnPropertyChangedCallback OnPropertyChangedCallback) {
44            }
45        };
46
47        final int expectedId = 100;
48        OnPropertyChangedCallback listener = new OnPropertyChangedCallback() {
49            @Override
50            public void onPropertyChanged(Observable observable, int id) {
51                notificationCount++;
52                assertEquals(expectedId, id);
53                assertEquals(observableObj, observable);
54            }
55        };
56        propertyChangeRegistry.add(listener);
57
58        assertEquals(0, notificationCount);
59        propertyChangeRegistry.notifyChange(observableObj, expectedId);
60        assertEquals(1, notificationCount);
61    }
62}
63