MacAddressUtilTest.java — netty Source File

Source Code

/*
 * Copyright 2016 The Netty Project
 *
 * The Netty Project licenses this file to you 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:
 *
 *   https://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 io.netty.util.internal;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.function.Executable;

import static io.netty.util.internal.EmptyArrays.EMPTY_BYTES;
import static io.netty.util.internal.MacAddressUtil.parseMAC;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

public class MacAddressUtilTest {
    @Test
    public void testCompareAddresses() {
        // should not prefer empty address when candidate is not globally unique
        assertEquals(
                0,
                MacAddressUtil.compareAddresses(
                        EMPTY_BYTES,
                        new byte[]{(byte) 0x52, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd}));

        // only candidate is globally unique
        assertEquals(
                -1,
                MacAddressUtil.compareAddresses(
                        EMPTY_BYTES,
                        new byte[]{(byte) 0x50, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd}));

        // only candidate is globally unique
        assertEquals(
                -1,
                MacAddressUtil.compareAddresses(
                        new byte[]{(byte) 0x52, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd},
                        new byte[]{(byte) 0x50, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd}));

        // only current is globally unique
        assertEquals(
                1,
                MacAddressUtil.compareAddresses(
                        new byte[]{(byte) 0x52, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd},
                        EMPTY_BYTES));

        // only current is globally unique
        assertEquals(
                1,
// ... (139 more lines)