1/*
2 * Copyright (C) 2016 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 */
16
17package android.support.v7.util;
18
19import static org.mockito.Mockito.verify;
20import static org.mockito.Mockito.verifyNoMoreInteractions;
21import static org.mockito.Mockito.verifyZeroInteractions;
22
23import android.support.test.filters.SmallTest;
24
25import org.junit.Before;
26import org.junit.Test;
27import org.junit.runner.RunWith;
28import org.junit.runners.JUnit4;
29import org.mockito.Mockito;
30
31@SuppressWarnings("unchecked")
32@RunWith(JUnit4.class)
33@SmallTest
34public class SortedListBatchedCallbackTest {
35    SortedList.BatchedCallback mBatchedCallback;
36    SortedList.Callback mMockCallback;
37    @Before
38    public void init() {
39        mMockCallback = Mockito.mock(SortedList.Callback.class);
40        mBatchedCallback = new SortedList.BatchedCallback(mMockCallback);
41    }
42
43    @Test
44    public void onChange() {
45        mBatchedCallback.onChanged(1, 2);
46        verifyZeroInteractions(mMockCallback);
47        mBatchedCallback.dispatchLastEvent();
48        verify(mMockCallback).onChanged(1, 2, null);
49        verifyNoMoreInteractions(mMockCallback);
50    }
51
52    @Test
53    public void onRemoved() {
54        mBatchedCallback.onRemoved(2, 3);
55        verifyZeroInteractions(mMockCallback);
56        mBatchedCallback.dispatchLastEvent();
57        verify(mMockCallback).onRemoved(2, 3);
58        verifyNoMoreInteractions(mMockCallback);
59    }
60
61    @Test
62    public void onInserted() {
63        mBatchedCallback.onInserted(3, 4);
64        verifyNoMoreInteractions(mMockCallback);
65        mBatchedCallback.dispatchLastEvent();
66        verify(mMockCallback).onInserted(3, 4);
67        verifyNoMoreInteractions(mMockCallback);
68    }
69
70    @Test
71    public void onMoved() {
72        mBatchedCallback.onMoved(5, 6);
73        // moves are not merged
74        verify(mMockCallback).onMoved(5, 6);
75        verifyNoMoreInteractions(mMockCallback);
76    }
77
78    @Test
79    public void compare() {
80        Object o1 = new Object();
81        Object o2 = new Object();
82        mBatchedCallback.compare(o1, o2);
83        verify(mMockCallback).compare(o1, o2);
84        verifyNoMoreInteractions(mMockCallback);
85    }
86
87    @Test
88    public void areContentsTheSame() {
89        Object o1 = new Object();
90        Object o2 = new Object();
91        mBatchedCallback.areContentsTheSame(o1, o2);
92        verify(mMockCallback).areContentsTheSame(o1, o2);
93        verifyNoMoreInteractions(mMockCallback);
94    }
95
96    @Test
97    public void areItemsTheSame() {
98        Object o1 = new Object();
99        Object o2 = new Object();
100        mBatchedCallback.areItemsTheSame(o1, o2);
101        verify(mMockCallback).areItemsTheSame(o1, o2);
102        verifyNoMoreInteractions(mMockCallback);
103    }
104}
105