| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * 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 CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.text.method; |
| |
| import android.platform.test.annotations.Presubmit; |
| import android.text.InputType; |
| import android.util.KeyUtils; |
| import android.view.KeyEvent; |
| import android.widget.EditText; |
| import android.widget.TextView.BufferType; |
| |
| import androidx.test.InstrumentationRegistry; |
| import androidx.test.filters.SmallTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| /** |
| * Test forward delete key handling of {@link android.text.method.BaseKeyListener}. |
| * |
| * Only contains edge cases. For normal cases, see {@see android.text.method.cts.ForwardDeleteTest}. |
| * TODO: introduce test cases for surrogate pairs and replacement span. |
| */ |
| @Presubmit |
| @SmallTest |
| @RunWith(AndroidJUnit4.class) |
| public class ForwardDeleteTest { |
| private EditText mTextView; |
| |
| private static final BaseKeyListener mKeyListener = new BaseKeyListener() { |
| public int getInputType() { |
| return InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_NORMAL; |
| } |
| }; |
| |
| @Before |
| public void setup() { |
| mTextView = new EditText(InstrumentationRegistry.getInstrumentation().getContext()); |
| } |
| |
| // Sync the state to the TextView and call onKeyDown with KEYCODE_FORWARD_DEL key event. |
| // Then update the state to the result of TextView. |
| private void forwardDelete(final EditorState state, int modifiers) { |
| mTextView.setText(state.mText, BufferType.EDITABLE); |
| mTextView.setKeyListener(mKeyListener); |
| mTextView.setSelection(state.mSelectionStart, state.mSelectionEnd); |
| |
| final KeyEvent keyEvent = KeyUtils.generateKeyEvent( |
| KeyEvent.KEYCODE_FORWARD_DEL, KeyEvent.ACTION_DOWN, modifiers); |
| mTextView.onKeyDown(keyEvent.getKeyCode(), keyEvent); |
| |
| state.mText = mTextView.getText(); |
| state.mSelectionStart = mTextView.getSelectionStart(); |
| state.mSelectionEnd = mTextView.getSelectionEnd(); |
| } |
| |
| @Test |
| public void testCombiningEnclosingKeycaps() { |
| EditorState state = new EditorState(); |
| |
| // multiple COMBINING ENCLOSING KEYCAP |
| state.setByString("| '1' U+20E3 U+20E3"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated COMBINING ENCLOSING KEYCAP |
| state.setByString("| U+20E3"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated multiple COMBINING ENCLOSING KEYCAP |
| state.setByString("| U+20E3 U+20E3"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| } |
| |
| @Test |
| public void testVariationSelector() { |
| EditorState state = new EditorState(); |
| |
| // Isolated variation selectors |
| state.setByString("| U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("| U+E0100"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated multiple variation selectors |
| state.setByString("| U+FE0F U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("| U+FE0F U+E0100"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("| U+E0100 U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("| U+E0100 U+E0100"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Multiple variation selectors |
| state.setByString("| '#' U+FE0F U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("| '#' U+FE0F U+E0100"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("| U+845B U+E0100 U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("| U+845B U+E0100 U+E0100"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| } |
| |
| @Test |
| public void testEmojiZeroWidthJoinerSequence() { |
| EditorState state = new EditorState(); |
| |
| // U+200D is ZERO WIDTH JOINER. |
| state.setByString("| U+1F441 U+200D U+1F5E8"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("| U+1F468 U+200D U+2764 U+FE0F U+200D U+1F48B U+200D U+1F468"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // End with ZERO WIDTH JOINER |
| state.setByString("| U+1F441 U+200D"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Start with ZERO WIDTH JOINER |
| state.setByString("| U+200D U+1F5E8"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F5E8"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Multiple ZERO WIDTH JOINER |
| state.setByString("| U+1F441 U+200D U+200D U+1F5E8"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F5E8"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated ZERO WIDTH JOINER |
| state.setByString("| U+200D"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated multiple ZERO WIDTH JOINER |
| state.setByString("| U+200D U+200D"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| } |
| |
| @Test |
| public void testFlags() { |
| EditorState state = new EditorState(); |
| |
| // Isolated regional indicator symbol |
| state.setByString("| U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Odd numbered regional indicator symbols |
| state.setByString("| U+1F1FA U+1F1F8 U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Incomplete sequence. (no tag_term:U+E007E) |
| state.setByString("| 'a' U+1F3F4 U+E0067 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F3F4 U+E0067 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| 'b'"); |
| |
| // No tag_base |
| state.setByString("| 'a' U+E0067 U+E007F 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| 'b'"); |
| |
| // Isolated tag chars |
| state.setByString("| 'a' U+E0067 U+E0067 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| 'b'"); |
| |
| // Isolated tag base. |
| state.setByString("| 'a' U+1F3F4 U+1F3F4 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F3F4 U+1F3F4 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F3F4 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| 'b'"); |
| |
| // Isolated tab term. |
| state.setByString("| 'a' U+E007F U+E007F 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| 'b'"); |
| |
| // Immediate tag_term after tag_base |
| state.setByString("| 'a' U+1F3F4 U+E007F U+1F3F4 U+E007F 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F3F4 U+E007F U+1F3F4 U+E007F 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F3F4 U+E007F 'b'"); |
| forwardDelete(state, 0); |
| state.assertEquals("| 'b'"); |
| } |
| |
| @Test |
| public void testEmojiModifier() { |
| EditorState state = new EditorState(); |
| |
| // U+1F3FB is EMOJI MODIFIER FITZPATRICK TYPE-1-2. |
| state.setByString("| U+1F466 U+1F3FB"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated emoji modifier |
| state.setByString("| U+1F3FB"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated multiple emoji modifier |
| state.setByString("| U+1F3FB U+1F3FB"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Multiple emoji modifiers |
| state.setByString("| U+1F466 U+1F3FB U+1F3FB"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| } |
| |
| @Test |
| public void testMixedEdgeCases() { |
| EditorState state = new EditorState(); |
| |
| // COMBINING ENCLOSING KEYCAP + variation selector |
| state.setByString("| '1' U+20E3 U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + COMBINING ENCLOSING KEYCAP |
| state.setByString("| U+2665 U+FE0F U+20E3"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // COMBINING ENCLOSING KEYCAP + ending with ZERO WIDTH JOINER |
| state.setByString("| '1' U+20E3 U+200D"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // COMBINING ENCLOSING KEYCAP + ZERO WIDTH JOINER |
| state.setByString("| '1' U+20E3 U+200D U+1F5E8"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F5E8 "); |
| |
| // Start with ZERO WIDTH JOINER + COMBINING ENCLOSING KEYCAP |
| state.setByString("| U+200D U+20E3"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // ZERO WIDTH JOINER + COMBINING ENCLOSING KEYCAP |
| state.setByString("| U+1F441 U+200D U+20E3"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // COMBINING ENCLOSING KEYCAP + regional indicator symbol |
| state.setByString("| '1' U+20E3 U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Regional indicator symbol + COMBINING ENCLOSING KEYCAP |
| state.setByString("| U+1F1FA U+20E3"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // COMBINING ENCLOSING KEYCAP + emoji modifier |
| state.setByString("| '1' U+20E3 U+1F3FB"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + COMBINING ENCLOSING KEYCAP |
| state.setByString("| U+1F466 U+1F3FB U+20E3"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + end with ZERO WIDTH JOINER |
| state.setByString("| U+2665 U+FE0F U+200D"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + ZERO WIDTH JOINER |
| state.setByString("| U+1F469 U+200D U+2764 U+FE0F U+200D U+1F469"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Start with ZERO WIDTH JOINER + variation selector |
| state.setByString("| U+200D U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // ZERO WIDTH JOINER + variation selector |
| state.setByString("| U+1F469 U+200D U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + regional indicator symbol |
| state.setByString("| U+2665 U+FE0F U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Regional indicator symbol + variation selector |
| state.setByString("| U+1F1FA U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + emoji modifier |
| state.setByString("| U+2665 U+FE0F U+1F3FB"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + variation selector |
| state.setByString("| U+1F466 U+1F3FB U+FE0F"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Start with ZERO WIDTH JOINER + regional indicator symbol |
| state.setByString("| U+200D U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // ZERO WIDTH JOINER + regional indicator symbol |
| state.setByString("| U+1F469 U+200D U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Regional indicator symbol + end with ZERO WIDTH JOINER |
| state.setByString("| U+1F1FA U+200D"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Regional indicator symbol + ZERO WIDTH JOINER |
| state.setByString("| U+1F1FA U+200D U+1F469"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F469"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Start with ZERO WIDTH JOINER + emoji modifier |
| state.setByString("| U+200D U+1F3FB"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // ZERO WIDTH JOINER + emoji modifier |
| state.setByString("| U+1F469 U+200D U+1F3FB"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + end with ZERO WIDTH JOINER |
| state.setByString("| U+1F466 U+1F3FB U+200D"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + ZERO WIDTH JOINER |
| // TODO(nona): Revive this test once HarfBuzz is updated to 2.0.2 (b/117953171) |
| // state.setByString("| U+1F466 U+1F3FB U+200D U+1F469"); |
| // forwardDelete(state, 0); |
| // state.assertEquals("|"); |
| |
| // Regional indicator symbol + emoji modifier |
| state.setByString("| U+1F1FA U+1F3FB"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + regional indicator symbol |
| state.setByString("| U+1F466 U+1F3FB U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("| U+1F1FA"); |
| forwardDelete(state, 0); |
| state.assertEquals("|"); |
| } |
| } |