| /* |
| * 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; |
| |
| import android.perftests.utils.BenchmarkState; |
| import android.perftests.utils.PerfStatusReporter; |
| |
| import android.support.test.filters.LargeTest; |
| import android.support.test.runner.AndroidJUnit4; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.nio.CharBuffer; |
| import java.util.Random; |
| |
| @LargeTest |
| @RunWith(AndroidJUnit4.class) |
| public class StaticLayoutPerfTest { |
| |
| public StaticLayoutPerfTest() { |
| } |
| |
| @Rule |
| public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| |
| private static final String FIXED_TEXT = "Lorem ipsum dolor sit amet, consectetur adipiscing " |
| + "elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad " |
| + "minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea " |
| + "commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse " |
| + "cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non " |
| + "proident, sunt in culpa qui officia deserunt mollit anim id est laborum."; |
| private static final int FIXED_TEXT_LENGTH = FIXED_TEXT.length(); |
| |
| private static TextPaint PAINT = new TextPaint(); |
| private static final int TEXT_WIDTH = 20 * (int) PAINT.getTextSize(); |
| |
| @Test |
| public void testCreate() { |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| StaticLayout.Builder.obtain(FIXED_TEXT, 0, FIXED_TEXT_LENGTH, PAINT, TEXT_WIDTH) |
| .build(); |
| } |
| } |
| |
| private static final String ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; |
| private static final int ALPHABET_LENGTH = ALPHABET.length(); |
| |
| private static final int PARA_LENGTH = 500; |
| private final char[] mBuffer = new char[PARA_LENGTH]; |
| private final Random mRandom = new Random(31415926535L); |
| |
| private CharSequence generateRandomParagraph(int wordLen) { |
| for (int i = 0; i < PARA_LENGTH; i++) { |
| if (i % (wordLen + 1) == wordLen) { |
| mBuffer[i] = ' '; |
| } else { |
| mBuffer[i] = ALPHABET.charAt(mRandom.nextInt(ALPHABET_LENGTH)); |
| } |
| } |
| return CharBuffer.wrap(mBuffer); |
| } |
| |
| // This tries to simulate the case where the cache hit rate is low, and most of the text is |
| // new text. |
| @Test |
| public void testCreateRandom() { |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| final CharSequence text = generateRandomParagraph(9); |
| StaticLayout.Builder.obtain(text, 0, text.length(), PAINT, TEXT_WIDTH) |
| .build(); |
| } |
| } |
| |
| @Test |
| public void testCreateRandom_breakBalanced() { |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| final CharSequence text = generateRandomParagraph(9); |
| StaticLayout.Builder.obtain(text, 0, text.length(), PAINT, TEXT_WIDTH) |
| .setBreakStrategy(Layout.BREAK_STRATEGY_BALANCED) |
| .build(); |
| } |
| } |
| } |