1/*
2 * Copyright (C) 2017 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.text.emoji.widget;
18
19import static org.hamcrest.CoreMatchers.instanceOf;
20import static org.junit.Assert.assertEquals;
21import static org.junit.Assert.assertSame;
22import static org.junit.Assert.assertThat;
23import static org.mockito.Mockito.mock;
24import static org.mockito.Mockito.times;
25import static org.mockito.Mockito.verify;
26
27import android.annotation.TargetApi;
28import android.support.test.InstrumentationRegistry;
29import android.support.test.filters.SdkSuppress;
30import android.support.test.filters.SmallTest;
31import android.support.test.runner.AndroidJUnit4;
32import android.support.text.emoji.EmojiCompat;
33import android.text.TextWatcher;
34import android.text.method.KeyListener;
35import android.view.inputmethod.InputConnection;
36import android.widget.EditText;
37
38import org.junit.Before;
39import org.junit.Test;
40import org.junit.runner.RunWith;
41import org.mockito.ArgumentCaptor;
42
43@SmallTest
44@RunWith(AndroidJUnit4.class)
45@SdkSuppress(minSdkVersion = 19)
46@TargetApi(19)
47public class EmojiEditTextHelperTest {
48    EmojiEditTextHelper mEmojiEditTextHelper;
49    EditText mEditText;
50
51    @Before
52    public void setup() {
53        EmojiCompat.reset(mock(EmojiCompat.class));
54        mEditText = new EditText(InstrumentationRegistry.getTargetContext());
55        mEmojiEditTextHelper = new EmojiEditTextHelper(mEditText);
56    }
57
58    @Test(expected = NullPointerException.class)
59    public void testGetKeyListener_withNull_throwsException() {
60        mEmojiEditTextHelper.getKeyListener(null);
61    }
62
63    @Test
64    public void testGetKeyListener_returnsEmojiKeyListener() {
65        final KeyListener keyListener = mEmojiEditTextHelper.getKeyListener(
66                mock(KeyListener.class));
67
68        assertThat(keyListener, instanceOf(EmojiKeyListener.class));
69    }
70
71    @Test
72    public void testGetKeyListener_doesNotCreateNewInstance() {
73        KeyListener mockKeyListener = mock(KeyListener.class);
74        final KeyListener keyListener1 = mEmojiEditTextHelper.getKeyListener(mockKeyListener);
75        final KeyListener keyListener2 = mEmojiEditTextHelper.getKeyListener(keyListener1);
76        assertSame(keyListener1, keyListener2);
77    }
78
79    @Test(expected = NullPointerException.class)
80    public void testGetOnCreateInputConnection_withNull_throwsException() {
81        mEmojiEditTextHelper.onCreateInputConnection(null, null);
82    }
83
84    @Test
85    public void testGetOnCreateInputConnection_returnsEmojiInputConnection() {
86        final InputConnection inputConnection = mEmojiEditTextHelper.onCreateInputConnection(
87                mock(InputConnection.class), null);
88
89        assertThat(inputConnection, instanceOf(EmojiInputConnection.class));
90    }
91
92    @Test
93    public void testGetOnCreateInputConnection_doesNotCreateNewInstance() {
94        final InputConnection ic1 = mEmojiEditTextHelper.onCreateInputConnection(
95                mock(InputConnection.class), null);
96        final InputConnection ic2 = mEmojiEditTextHelper.onCreateInputConnection(ic1, null);
97
98        assertSame(ic1, ic2);
99    }
100
101    @Test
102    public void testAttachesTextWatcher() {
103        mEditText = mock(EditText.class);
104        mEmojiEditTextHelper = new EmojiEditTextHelper(mEditText);
105
106        final ArgumentCaptor<TextWatcher> argumentCaptor = ArgumentCaptor.forClass(
107                TextWatcher.class);
108
109        verify(mEditText, times(1)).addTextChangedListener(argumentCaptor.capture());
110        assertThat(argumentCaptor.getValue(), instanceOf(EmojiTextWatcher.class));
111    }
112
113    @Test
114    public void testSetMaxCount() {
115        mEditText = mock(EditText.class);
116        mEmojiEditTextHelper = new EmojiEditTextHelper(mEditText);
117        // capture TextWatcher
118        final ArgumentCaptor<TextWatcher> argumentCaptor = ArgumentCaptor.forClass(
119                TextWatcher.class);
120        verify(mEditText, times(1)).addTextChangedListener(argumentCaptor.capture());
121        assertThat(argumentCaptor.getValue(), instanceOf(EmojiTextWatcher.class));
122        final EmojiTextWatcher emojiTextWatcher = (EmojiTextWatcher) argumentCaptor.getValue();
123
124        mEmojiEditTextHelper.setMaxEmojiCount(1);
125
126        assertEquals(1, emojiTextWatcher.getMaxEmojiCount());
127    }
128
129    @Test
130    public void testSetEmojiReplaceStrategy() {
131        mEditText = mock(EditText.class);
132        mEmojiEditTextHelper = new EmojiEditTextHelper(mEditText);
133
134        //assert the default value
135        assertEquals(EmojiCompat.REPLACE_STRATEGY_DEFAULT,
136                mEmojiEditTextHelper.getEmojiReplaceStrategy());
137
138        // capture TextWatcher
139        final ArgumentCaptor<TextWatcher> argumentCaptor = ArgumentCaptor.forClass(
140                TextWatcher.class);
141        verify(mEditText, times(1)).addTextChangedListener(argumentCaptor.capture());
142        assertThat(argumentCaptor.getValue(), instanceOf(EmojiTextWatcher.class));
143        final EmojiTextWatcher emojiTextWatcher = (EmojiTextWatcher) argumentCaptor.getValue();
144
145        mEmojiEditTextHelper.setEmojiReplaceStrategy(EmojiCompat.REPLACE_STRATEGY_NON_EXISTENT);
146
147        assertEquals(EmojiCompat.REPLACE_STRATEGY_NON_EXISTENT,
148                mEmojiEditTextHelper.getEmojiReplaceStrategy());
149
150        assertEquals(EmojiCompat.REPLACE_STRATEGY_NON_EXISTENT,
151                emojiTextWatcher.getEmojiReplaceStrategy());
152    }
153
154}
155