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      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 package androidx.emoji.widget;
     17 
     18 import static androidx.emoji.util.EmojiMatcher.hasEmoji;
     19 
     20 import static org.hamcrest.MatcherAssert.assertThat;
     21 import static org.junit.Assert.assertFalse;
     22 import static org.junit.Assert.assertTrue;
     23 import static org.mockito.Matchers.anyInt;
     24 import static org.mockito.Mockito.doReturn;
     25 import static org.mockito.Mockito.mock;
     26 import static org.mockito.Mockito.never;
     27 import static org.mockito.Mockito.spy;
     28 import static org.mockito.Mockito.times;
     29 import static org.mockito.Mockito.verify;
     30 import static org.mockito.Mockito.when;
     31 
     32 import android.content.Context;
     33 import android.os.Build;
     34 import android.support.test.InstrumentationRegistry;
     35 import android.support.test.filters.SdkSuppress;
     36 import android.support.test.filters.SmallTest;
     37 import android.support.test.runner.AndroidJUnit4;
     38 import android.text.Editable;
     39 import android.text.Selection;
     40 import android.text.SpannableStringBuilder;
     41 import android.view.inputmethod.EditorInfo;
     42 import android.view.inputmethod.InputConnection;
     43 import android.widget.TextView;
     44 
     45 import androidx.emoji.text.EmojiCompat;
     46 import androidx.emoji.text.TestConfigBuilder;
     47 import androidx.emoji.util.Emoji;
     48 import androidx.emoji.util.TestString;
     49 
     50 import org.junit.Before;
     51 import org.junit.BeforeClass;
     52 import org.junit.Test;
     53 import org.junit.runner.RunWith;
     54 
     55 @SmallTest
     56 @RunWith(AndroidJUnit4.class)
     57 @SdkSuppress(minSdkVersion = 19)
     58 public class EmojiInputConnectionTest {
     59 
     60     private InputConnection mInputConnection;
     61     private TestString mTestString;
     62     private Editable mEditable;
     63     private EmojiInputConnection mEmojiEmojiInputConnection;
     64 
     65     @BeforeClass
     66     public static void setupEmojiCompat() {
     67         EmojiCompat.reset(TestConfigBuilder.config());
     68     }
     69 
     70     @Before
     71     public void setup() {
     72         mTestString = new TestString(Emoji.EMOJI_WITH_ZWJ).withPrefix().withSuffix();
     73         mEditable = new SpannableStringBuilder(mTestString.toString());
     74         mInputConnection = mock(InputConnection.class);
     75         final Context context = InstrumentationRegistry.getInstrumentation().getTargetContext();
     76         final TextView textView = spy(new TextView(context));
     77         EmojiCompat.get().process(mEditable);
     78         assertThat(mEditable, hasEmoji());
     79 
     80         doReturn(mEditable).when(textView).getEditableText();
     81         when(mInputConnection.deleteSurroundingText(anyInt(), anyInt())).thenReturn(false);
     82         setupDeleteSurroundingText();
     83 
     84         mEmojiEmojiInputConnection = new EmojiInputConnection(textView, mInputConnection,
     85                 new EditorInfo());
     86     }
     87 
     88     private void setupDeleteSurroundingText() {
     89         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
     90             when(mInputConnection.deleteSurroundingTextInCodePoints(anyInt(), anyInt())).thenReturn(
     91                     false);
     92         }
     93     }
     94 
     95     @Test
     96     public void testDeleteSurroundingText_doesNotDelete() {
     97         Selection.setSelection(mEditable, 0, mEditable.length());
     98         assertFalse(mEmojiEmojiInputConnection.deleteSurroundingText(1, 0));
     99         verify(mInputConnection, times(1)).deleteSurroundingText(1, 0);
    100     }
    101 
    102     @Test
    103     public void testDeleteSurroundingText_deletesEmojiBackward() {
    104         Selection.setSelection(mEditable, mTestString.emojiEndIndex());
    105         assertTrue(mEmojiEmojiInputConnection.deleteSurroundingText(1, 0));
    106         verify(mInputConnection, never()).deleteSurroundingText(anyInt(), anyInt());
    107     }
    108 
    109     @Test
    110     public void testDeleteSurroundingText_doesNotDeleteEmojiIfSelectionAtStartIndex() {
    111         Selection.setSelection(mEditable, mTestString.emojiStartIndex());
    112         assertFalse(mEmojiEmojiInputConnection.deleteSurroundingText(1, 0));
    113         verify(mInputConnection, times(1)).deleteSurroundingText(1, 0);
    114     }
    115 
    116     @Test
    117     public void testDeleteSurroundingText_deletesEmojiForward() {
    118         Selection.setSelection(mEditable, mTestString.emojiStartIndex());
    119         assertTrue(mEmojiEmojiInputConnection.deleteSurroundingText(0, 1));
    120         verify(mInputConnection, never()).deleteSurroundingText(anyInt(), anyInt());
    121     }
    122 
    123     @SdkSuppress(minSdkVersion = Build.VERSION_CODES.N)
    124     @Test
    125     public void testDeleteSurroundingTextInCodePoints_doesNotDelete() {
    126         Selection.setSelection(mEditable, 0, mEditable.length());
    127         assertFalse(mEmojiEmojiInputConnection.deleteSurroundingTextInCodePoints(1, 0));
    128         verify(mInputConnection, times(1)).deleteSurroundingTextInCodePoints(1, 0);
    129     }
    130 
    131     @SdkSuppress(minSdkVersion = Build.VERSION_CODES.N)
    132     @Test
    133     public void testDeleteSurroundingTextInCodePoints_deletesEmojiBackward() {
    134         Selection.setSelection(mEditable, mTestString.emojiEndIndex());
    135         assertTrue(mEmojiEmojiInputConnection.deleteSurroundingTextInCodePoints(1, 0));
    136         verify(mInputConnection, never()).deleteSurroundingTextInCodePoints(anyInt(), anyInt());
    137     }
    138 
    139     @SdkSuppress(minSdkVersion = Build.VERSION_CODES.N)
    140     @Test
    141     public void testDeleteSurroundingTextInCodePoints_deletesEmojiForward() {
    142         Selection.setSelection(mEditable, mTestString.emojiStartIndex());
    143         assertTrue(mEmojiEmojiInputConnection.deleteSurroundingTextInCodePoints(0, 1));
    144         verify(mInputConnection, never()).deleteSurroundingTextInCodePoints(anyInt(), anyInt());
    145     }
    146 
    147     @SdkSuppress(minSdkVersion = Build.VERSION_CODES.N)
    148     @Test
    149     public void testDeleteSurroundingTextInCodePoints_doesNotDeleteEmojiIfSelectionAtStartIndex() {
    150         Selection.setSelection(mEditable, mTestString.emojiStartIndex());
    151         assertFalse(mEmojiEmojiInputConnection.deleteSurroundingTextInCodePoints(1, 0));
    152         verify(mInputConnection, times(1)).deleteSurroundingTextInCodePoints(1, 0);
    153     }
    154 }
    155