src/test/java/org/traccar/helper/BufferUtilTest.java


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package org.traccar.helper;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.junit.Test;

import java.nio.charset.StandardCharsets;

import static org.junit.Assert.assertEquals;

public class BufferUtilTest {

    @Test
    public void test1() {
        ByteBuf buf = Unpooled.copiedBuffer("abcdef", StandardCharsets.US_ASCII);
        assertEquals(2, BufferUtil.indexOf("cd", buf));
    }

    @Test
    public void test2() {
        ByteBuf buf = Unpooled.copiedBuffer("abcdef", StandardCharsets.US_ASCII);
        buf.readerIndex(1);
        buf.writerIndex(5);
        assertEquals(2, BufferUtil.indexOf("cd", buf));
    }

    @Test
    public void test3() {
        ByteBuf buf = Unpooled.copiedBuffer("abcdefgh", StandardCharsets.US_ASCII);
        buf.readerIndex(1);
        buf.writerIndex(7);
        assertEquals(3, BufferUtil.indexOf("de", buf, 2, 6));
    }

}