| /* |
| * Copyright (C) 2013 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.libcore; |
| |
| import android.perftests.utils.BenchmarkState; |
| import android.perftests.utils.PerfStatusReporter; |
| import android.test.suitebuilder.annotation.LargeTest; |
| |
| import junitparams.JUnitParamsRunner; |
| import junitparams.Parameters; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.lang.reflect.Array; |
| import java.lang.reflect.Constructor; |
| import java.util.Arrays; |
| import java.util.Collection; |
| |
| @RunWith(JUnitParamsRunner.class) |
| @LargeTest |
| public class DeepArrayOpsPerfTest { |
| @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| |
| private Object[] mArray; |
| private Object[] mArray2; |
| |
| public static Collection<Object[]> getData() { |
| return Arrays.asList(new Object[][] {{1}, {4}, {16}, {32}, {2048}}); |
| } |
| |
| public void setUp(int arrayLength) throws Exception { |
| mArray = new Object[arrayLength * 14]; |
| mArray2 = new Object[arrayLength * 14]; |
| for (int i = 0; i < arrayLength; i += 14) { |
| mArray[i] = new IntWrapper(i); |
| mArray2[i] = new IntWrapper(i); |
| |
| mArray[i + 1] = new16ElementObjectmArray(); |
| mArray2[i + 1] = new16ElementObjectmArray(); |
| |
| mArray[i + 2] = new boolean[16]; |
| mArray2[i + 2] = new boolean[16]; |
| |
| mArray[i + 3] = new byte[16]; |
| mArray2[i + 3] = new byte[16]; |
| |
| mArray[i + 4] = new char[16]; |
| mArray2[i + 4] = new char[16]; |
| |
| mArray[i + 5] = new short[16]; |
| mArray2[i + 5] = new short[16]; |
| |
| mArray[i + 6] = new float[16]; |
| mArray2[i + 6] = new float[16]; |
| |
| mArray[i + 7] = new long[16]; |
| mArray2[i + 7] = new long[16]; |
| |
| mArray[i + 8] = new int[16]; |
| mArray2[i + 8] = new int[16]; |
| |
| mArray[i + 9] = new double[16]; |
| mArray2[i + 9] = new double[16]; |
| |
| // SubmArray types are concrete objects. |
| mArray[i + 10] = new16ElementArray(String.class, String.class); |
| mArray2[i + 10] = new16ElementArray(String.class, String.class); |
| |
| mArray[i + 11] = new16ElementArray(Integer.class, Integer.class); |
| mArray2[i + 11] = new16ElementArray(Integer.class, Integer.class); |
| |
| // SubmArray types is an interface. |
| mArray[i + 12] = new16ElementArray(CharSequence.class, String.class); |
| mArray2[i + 12] = new16ElementArray(CharSequence.class, String.class); |
| |
| mArray[i + 13] = null; |
| mArray2[i + 13] = null; |
| } |
| } |
| |
| @Test |
| @Parameters(method = "getData") |
| public void deepHashCode(int arrayLength) throws Exception { |
| setUp(arrayLength); |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| Arrays.deepHashCode(mArray); |
| } |
| } |
| |
| @Test |
| @Parameters(method = "getData") |
| public void deepEquals(int arrayLength) throws Exception { |
| setUp(arrayLength); |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| Arrays.deepEquals(mArray, mArray2); |
| } |
| } |
| |
| private static Object[] new16ElementObjectmArray() { |
| Object[] array = new Object[16]; |
| for (int i = 0; i < 16; ++i) { |
| array[i] = new IntWrapper(i); |
| } |
| |
| return array; |
| } |
| |
| @SuppressWarnings("unchecked") |
| private static <T, V> T[] new16ElementArray(Class<T> mArrayType, Class<V> type) |
| throws Exception { |
| T[] array = (T[]) Array.newInstance(type, 16); |
| if (!mArrayType.isAssignableFrom(type)) { |
| throw new IllegalArgumentException(mArrayType + " is not assignable from " + type); |
| } |
| |
| Constructor<V> constructor = type.getDeclaredConstructor(String.class); |
| for (int i = 0; i < 16; ++i) { |
| array[i] = (T) constructor.newInstance(String.valueOf(i + 1000)); |
| } |
| |
| return array; |
| } |
| |
| /** |
| * A class that provides very basic equals() and hashCode() operations and doesn't resort to |
| * memoization tricks like {@link java.lang.Integer}. |
| * |
| * <p>Useful for providing equal objects that aren't the same (a.equals(b) but a != b). |
| */ |
| public static final class IntWrapper { |
| private final int mWrapped; |
| |
| public IntWrapper(int wrap) { |
| mWrapped = wrap; |
| } |
| |
| @Override |
| public int hashCode() { |
| return mWrapped; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (!(o instanceof IntWrapper)) { |
| return false; |
| } |
| |
| return ((IntWrapper) o).mWrapped == this.mWrapped; |
| } |
| } |
| } |