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 17 package android.widget; 18 19 import android.perftests.utils.BenchmarkState; 20 import android.perftests.utils.PerfStatusReporter; 21 import android.perftests.utils.StubActivity; 22 import android.text.Selection; 23 import android.view.KeyEvent; 24 import android.view.View.MeasureSpec; 25 import android.view.ViewGroup; 26 27 import androidx.test.InstrumentationRegistry; 28 import androidx.test.filters.LargeTest; 29 import androidx.test.rule.ActivityTestRule; 30 31 import org.junit.Assert; 32 import org.junit.Rule; 33 import org.junit.Test; 34 import org.junit.runner.RunWith; 35 import org.junit.runners.Parameterized; 36 import org.junit.runners.Parameterized.Parameters; 37 38 import java.util.Arrays; 39 import java.util.Collection; 40 41 @LargeTest 42 @RunWith(Parameterized.class) 43 public class EditTextBackspacePerfTest { 44 45 private static final String BOY = "\uD83D\uDC66"; // U+1F466 46 private static final String US_FLAG = "\uD83C\uDDFA\uD83C\uDDF8"; // U+1F1FA U+1F1F8 47 private static final String FAMILY = 48 // U+1F469 U+200D U+1F469 U+200D U+1F467 U+200D U+1F467 49 "\uD83D\uDC69\u200D\uD83D\uDC69\u200D\uD83D\uDC67\u200D\uD83D\uDC67"; 50 private static final String EMOJI_MODIFIER = "\uD83C\uDFFD"; // U+1F3FD 51 private static final String KEYCAP = "\u20E3"; 52 private static final String COLOR_COPYRIGHT = "\u00A9\uFE0F"; 53 54 @Parameters(name = "{0}") cases()55 public static Collection cases() { 56 return Arrays.asList(new Object[][] { 57 { "Latin", "aaa", 1 }, 58 { "Flags", US_FLAG + US_FLAG + US_FLAG, 4 }, 59 { "EmojiModifier", 60 BOY + EMOJI_MODIFIER + BOY + EMOJI_MODIFIER + BOY + EMOJI_MODIFIER, 4 }, 61 { "KeyCap", "1" + KEYCAP + "1" + KEYCAP + "1" + KEYCAP, 2 }, 62 { "ZwjSequence", FAMILY + FAMILY + FAMILY, 11 }, 63 { "VariationSelector", COLOR_COPYRIGHT + COLOR_COPYRIGHT + COLOR_COPYRIGHT, 2 }, 64 }); 65 } 66 67 private final String mMetricKey; 68 private final String mText; 69 private final int mCursorPos; 70 71 private static final KeyEvent BACKSPACE_KEY_EVENT = 72 new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL); 73 private static final KeyEvent RIGHT_ARROW_KEY_EVENT = 74 new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_RIGHT); 75 EditTextBackspacePerfTest(String metricKey, String text, int cursorPos)76 public EditTextBackspacePerfTest(String metricKey, String text, int cursorPos) { 77 mMetricKey = metricKey; 78 mText = text; 79 mCursorPos = cursorPos; 80 } 81 82 @Rule 83 public ActivityTestRule<StubActivity> mActivityRule = new ActivityTestRule(StubActivity.class); 84 85 @Rule 86 public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); 87 prepareTextForBackspace(EditText editText)88 private void prepareTextForBackspace(EditText editText) { 89 editText.setText(mText, TextView.BufferType.EDITABLE); 90 Selection.setSelection(editText.getText(), 0, 0); 91 92 // Do layout it here since the cursor movement requires layout information but it 93 // happens asynchronously even if the view is attached to an Activity. 94 editText.setLayoutParams(new ViewGroup.LayoutParams( 95 ViewGroup.LayoutParams.WRAP_CONTENT, 96 ViewGroup.LayoutParams.WRAP_CONTENT)); 97 editText.invalidate(); 98 editText.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 99 MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); 100 editText.layout(0, 0, 1024, 768); 101 102 // mText contains three grapheme clusters. Move the cursor to the 2nd grapheme 103 // cluster by forwarding right arrow key event. 104 editText.onKeyDown(RIGHT_ARROW_KEY_EVENT.getKeyCode(), RIGHT_ARROW_KEY_EVENT); 105 Assert.assertEquals(mCursorPos, Selection.getSelectionStart(editText.getText())); 106 } 107 108 @Test testBackspace()109 public void testBackspace() { 110 InstrumentationRegistry.getInstrumentation().runOnMainSync(() -> { 111 EditText editText = new EditText(mActivityRule.getActivity()); 112 113 BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); 114 while (state.keepRunning()) { 115 // Prepare the test data for this iteration with pausing timer. 116 state.pauseTiming(); 117 prepareTextForBackspace(editText); 118 state.resumeTiming(); 119 120 editText.onKeyDown(BACKSPACE_KEY_EVENT.getKeyCode(), BACKSPACE_KEY_EVENT); 121 } 122 }); 123 } 124 } 125