| /* |
| * 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.app.Activity; |
| import android.test.suitebuilder.annotation.SmallTest; |
| import android.test.suitebuilder.annotation.Suppress; |
| import android.text.InputType; |
| import android.text.method.BaseKeyListener; |
| import android.text.method.KeyListenerTestCase; |
| import android.view.KeyEvent; |
| import android.widget.EditText; |
| import android.widget.TextView.BufferType; |
| |
| /** |
| * Test backspace key handling of {@link android.text.method.BaseKeyListner}. |
| * |
| * Only contains edge cases. For normal cases, see {@see android.text.method.cts.BackspaceTest}. |
| * TODO: introduce test cases for surrogate pairs and replacement span. |
| */ |
| public class BackspaceTest extends KeyListenerTestCase { |
| private static final BaseKeyListener mKeyListener = new BaseKeyListener() { |
| public int getInputType() { |
| return InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_NORMAL; |
| } |
| }; |
| |
| // Sync the state to the TextView and call onKeyDown with KEYCODE_DEL key event. |
| // Then update the state to the result of TextView. |
| private void backspace(final EditorState state, int modifiers) { |
| mActivity.runOnUiThread(new Runnable() { |
| public void run() { |
| mTextView.setText(state.mText, BufferType.EDITABLE); |
| mTextView.setKeyListener(mKeyListener); |
| mTextView.setSelection(state.mSelectionStart, state.mSelectionEnd); |
| } |
| }); |
| mInstrumentation.waitForIdleSync(); |
| assertTrue(mTextView.hasWindowFocus()); |
| |
| final KeyEvent keyEvent = getKey(KeyEvent.KEYCODE_DEL, modifiers); |
| mActivity.runOnUiThread(new Runnable() { |
| public void run() { |
| mTextView.onKeyDown(keyEvent.getKeyCode(), keyEvent); |
| } |
| }); |
| mInstrumentation.waitForIdleSync(); |
| |
| state.mText = mTextView.getText(); |
| state.mSelectionStart = mTextView.getSelectionStart(); |
| state.mSelectionEnd = mTextView.getSelectionEnd(); |
| } |
| |
| @SmallTest |
| public void testCombiningEnclosingKeycaps() { |
| EditorState state = new EditorState(); |
| |
| state.setByString("'1' U+E0101 U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // multiple COMBINING ENCLOSING KEYCAP |
| state.setByString("'1' U+20E3 U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("'1' U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated COMBINING ENCLOSING KEYCAP |
| state.setByString("U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated multiple COMBINING ENCLOSING KEYCAP |
| state.setByString("U+20E3 U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| } |
| |
| @SmallTest |
| public void testVariationSelector() { |
| EditorState state = new EditorState(); |
| |
| // Isolated variation selector |
| state.setByString("U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("U+E0100 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated multiple variation selectors |
| state.setByString("U+FE0F U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("U+FE0F U+E0100 |"); |
| backspace(state, 0); |
| state.assertEquals("U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("U+E0100 U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("U+E0100 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("U+E0100 U+E0100 |"); |
| backspace(state, 0); |
| state.assertEquals("U+E0100 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Multiple variation selectors |
| state.setByString("'#' U+FE0F U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("'#' U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("'#' U+FE0F U+E0100 |"); |
| backspace(state, 0); |
| state.assertEquals("'#' U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("U+845B U+E0100 U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("U+845B U+E0100 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("U+845B U+E0100 U+E0100 |"); |
| backspace(state, 0); |
| state.assertEquals("U+845B U+E0100 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| } |
| |
| @SmallTest |
| public void testEmojiZWJSequence() { |
| EditorState state = new EditorState(); |
| |
| // U+200D is ZERO WIDTH JOINER. |
| state.setByString("U+1F441 U+200D U+1F5E8 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("U+1F441 U+200D U+1F5E8 U+FE0E |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("U+1F468 U+200D U+2764 U+FE0F U+200D U+1F48B U+200D U+1F468 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // End with ZERO WIDTH JOINER |
| state.setByString("U+1F441 U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F441 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Start with ZERO WIDTH JOINER |
| state.setByString("U+200D U+1F5E8 |"); |
| backspace(state, 0); |
| state.assertEquals("U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| state.setByString("U+FE0E U+200D U+1F5E8 |"); |
| backspace(state, 0); |
| state.assertEquals("U+FE0E U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+FE0E |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Multiple ZERO WIDTH JOINER |
| state.setByString("U+1F441 U+200D U+200D U+1F5E8 |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F441 U+200D U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F441 U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F441 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated ZERO WIDTH JOINER |
| state.setByString("U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated multiple ZERO WIDTH JOINER |
| state.setByString("U+200D U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| } |
| |
| @SmallTest |
| public void testFlags() { |
| EditorState state = new EditorState(); |
| |
| // Isolated regional indicator symbol |
| state.setByString("U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Odd numbered regional indicator symbols |
| state.setByString("U+1F1FA U+1F1F8 U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F1FA U+1F1F8 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| } |
| |
| @SmallTest |
| public void testEmojiModifier() { |
| EditorState state = new EditorState(); |
| |
| // U+1F3FB is EMOJI MODIFIER FITZPATRICK TYPE-1-2. |
| state.setByString("U+1F466 U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated emoji modifier |
| state.setByString("U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Isolated multiple emoji modifier |
| state.setByString("U+1F3FB U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Multiple emoji modifiers |
| state.setByString("U+1F466 U+1F3FB U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F466 U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| } |
| |
| @SmallTest |
| public void testMixedEdgeCases() { |
| EditorState state = new EditorState(); |
| |
| // COMBINING ENCLOSING KEYCAP + variation selector |
| state.setByString("'1' U+20E3 U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("'1' |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + COMBINING ENCLOSING KEYCAP |
| state.setByString("U+2665 U+FE0F U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("U+2665 U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // COMBINING ENCLOSING KEYCAP + ending with ZERO WIDTH JOINER |
| state.setByString("'1' U+20E3 U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("'1' U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // COMBINING ENCLOSING KEYCAP + ZERO WIDTH JOINER |
| state.setByString("'1' U+20E3 U+200D U+1F5E8 |"); |
| backspace(state, 0); |
| state.assertEquals("'1' U+20E3 U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("'1' U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Start with ZERO WIDTH JOINER + COMBINING ENCLOSING KEYCAP |
| state.setByString("U+200D U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // ZERO WIDTH JOINER + COMBINING ENCLOSING KEYCAP |
| state.setByString("U+1F441 U+200D U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F441 U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F441 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // COMBINING ENCLOSING KEYCAP + regional indicator symbol |
| state.setByString("'1' U+20E3 U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("'1' U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Regional indicator symbol + COMBINING ENCLOSING KEYCAP |
| state.setByString("U+1F1FA U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // COMBINING ENCLOSING KEYCAP + emoji modifier |
| state.setByString("'1' U+20E3 U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("'1' U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + COMBINING ENCLOSING KEYCAP |
| state.setByString("U+1F466 U+1F3FB U+20E3 |"); |
| backspace(state, 0); |
| state.assertEquals("U+1f466 U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + end with ZERO WIDTH JOINER |
| state.setByString("U+2665 U+FE0F U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+2665 U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + ZERO WIDTH JOINER |
| state.setByString("U+1F469 U+200D U+2764 U+FE0F U+200D U+1F469 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Start with ZERO WIDTH JOINER + variation selector |
| state.setByString("U+200D U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // ZERO WIDTH JOINER + variation selector |
| state.setByString("U+1F469 U+200D U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F469 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + regional indicator symbol |
| state.setByString("U+2665 U+FE0F U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("U+2665 U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Regional indicator symbol + variation selector |
| state.setByString("U+1F1FA U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Variation selector + emoji modifier |
| state.setByString("U+2665 U+FE0F U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("U+2665 U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + variation selector |
| state.setByString("U+1F466 U+1F3FB U+FE0F |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F466 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Start withj ZERO WIDTH JOINER + regional indicator symbol |
| state.setByString("U+200D U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // ZERO WIDTH JOINER + Regional indicator symbol |
| state.setByString("U+1F469 U+200D U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F469 U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F469 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Regional indicator symbol + end with ZERO WIDTH JOINER |
| state.setByString("U+1F1FA U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Regional indicator symbol + ZERO WIDTH JOINER |
| state.setByString("U+1F1FA U+200D U+1F469 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Start with ZERO WIDTH JOINER + emoji modifier |
| state.setByString("U+200D U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // ZERO WIDTH JOINER + emoji modifier |
| state.setByString("U+1F469 U+200D U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F469 U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F469 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + end with ZERO WIDTH JOINER |
| state.setByString("U+1F466 U+1F3FB U+200D |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F466 U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + ZERO WIDTH JOINER |
| state.setByString("U+1F466 U+1F3FB U+200D U+1F469 |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F466 |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Regional indicator symbol + Emoji modifier |
| state.setByString("U+1F1FA U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| |
| // Emoji modifier + regional indicator symbol |
| state.setByString("U+1F466 U+1F3FB U+1F1FA |"); |
| backspace(state, 0); |
| state.assertEquals("U+1F466 U+1F3FB |"); |
| backspace(state, 0); |
| state.assertEquals("|"); |
| } |
| } |
