/*

 * Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package org.openjdk.bench.java.util;

import org.openjdk.jmh.annotations.Benchmark;

import org.openjdk.jmh.annotations.BenchmarkMode;

import org.openjdk.jmh.annotations.Mode;

import org.openjdk.jmh.annotations.OutputTimeUnit;

import org.openjdk.jmh.annotations.Scope;

import org.openjdk.jmh.annotations.State;

import java.util.Arrays;

import java.util.concurrent.TimeUnit;

/**

 * Tests for Array.equals() with 80 entry arrays differing at beginning, middle, or end.

 */

@BenchmarkMode(Mode.AverageTime)

@OutputTimeUnit(TimeUnit.NANOSECONDS)

@State(Scope.Thread)

public class ArraysEquals {

    public char[] testCharArray1 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789a".toCharArray();

    public char[] testCharArray2 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789b".toCharArray();

    public char[] testCharArray3 = "123456789012345678901234567890123456789a123456789012345678901234567890123456789b".toCharArray();

    public char[] testCharArray4 = "1234567890a2345678901234567890123456789a123456789012345678901234567890123456789b".toCharArray();

    public char[] testCharArray5 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789a".toCharArray();

    public byte[] testByteArray1 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789a".getBytes();

    public byte[] testByteArray2 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789b".getBytes();

    public byte[] testByteArray3 = "123456789012345678901234567890123456789a123456789012345678901234567890123456789b".getBytes();

    public byte[] testByteArray4 = "1234567890a2345678901234567890123456789a123456789012345678901234567890123456789b".getBytes();

    public byte[] testByteArray5 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789a".getBytes();

    /** Char array tests */

    @Benchmark

    public boolean testCharTrue() {

        return Arrays.equals(testCharArray1, testCharArray5);

    }

    @Benchmark

    public boolean testCharFalseEnd() {

        return Arrays.equals(testCharArray1, testCharArray2);

    }

    @Benchmark

    public boolean testCharFalseMid() {

        return Arrays.equals(testCharArray1, testCharArray3);

    }

    @Benchmark

    public boolean testCharFalseBeginning() {

        return Arrays.equals(testCharArray1, testCharArray4);

    }

    /** Byte arrays tests */

    @Benchmark

    public boolean testByteTrue() {

        return Arrays.equals(testByteArray1, testByteArray5);

    }

    @Benchmark

    public boolean testByteFalseEnd() {

        return Arrays.equals(testByteArray1, testByteArray2);

    }

    @Benchmark

    public boolean testByteFalseMid() {

        return Arrays.equals(testByteArray1, testByteArray3);

    }

    @Benchmark

    public boolean testByteFalseBeginning() {

        return Arrays.equals(testByteArray1, testByteArray4);

    }

}