HDMICEC: Add equals test for HdmiCecMessage

/*

 * Copyright (C) 2018 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 com.android.server.hdmi;

import androidx.test.filters.SmallTest;

import com.google.common.testing.EqualsTester;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.junit.runners.JUnit4;

/** Tests for {@link HdmiCecMessage} class. */

@SmallTest

@RunWith(JUnit4.class)

public class HdmiCecMessageTest {

    @Test

    public void testEqualsHdmiCecMessage() {

        int source = 0;

        int destination = 1;

        int opcode = 0x7f;

        byte[] params1 = {0x00, 0x1a, 0x2b, 0x3c};

        byte[] params2 = {0x00, 0x1a, 0x2b, 0x3c, 0x4d};

        new EqualsTester()

                .addEqualityGroup(

                        new HdmiCecMessage(source, destination, opcode, params1),

                        new HdmiCecMessage(source, destination, opcode, params1))

                .addEqualityGroup(new HdmiCecMessage(source, destination, opcode, params2))

                .addEqualityGroup(new HdmiCecMessage(source + 1, destination, opcode, params1))

                .addEqualityGroup(new HdmiCecMessage(source, destination + 1, opcode, params1))

                .addEqualityGroup(new HdmiCecMessage(source, destination, opcode + 1, params1))

                .testEquals();

    }

}