/*
* Copyright 2013 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:
*
* 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 io.netty.buffer;
import io.netty.util.CharsetUtil;
import org.junit.Test;
import static io.netty.util.ReferenceCountUtil.releaseLater;
import static org.junit.Assert.*;
public class ByteBufProcessorTest {
@Test
public void testForward() {
final ByteBuf buf = releaseLater(
Unpooled.copiedBuffer("abc\r\n\ndef\r\rghi\n\njkl\0\0mno \t\tx", CharsetUtil.ISO_8859_1));
final int length = buf.readableBytes();
assertEquals(3, buf.forEachByte(0, length, ByteBufProcessor.FIND_CRLF));
assertEquals(6, buf.forEachByte(3, length - 3, ByteBufProcessor.FIND_NON_CRLF));
assertEquals(9, buf.forEachByte(6, length - 6, ByteBufProcessor.FIND_CR));
assertEquals(11, buf.forEachByte(9, length - 9, ByteBufProcessor.FIND_NON_CR));
assertEquals(14, buf.forEachByte(11, length - 11, ByteBufProcessor.FIND_LF));
assertEquals(16, buf.forEachByte(14, length - 14, ByteBufProcessor.FIND_NON_LF));
assertEquals(19, buf.forEachByte(16, length - 16, ByteBufProcessor.FIND_NUL));
assertEquals(21, buf.forEachByte(19, length - 19, ByteBufProcessor.FIND_NON_NUL));
assertEquals(24, buf.forEachByte(21, length - 21, ByteBufProcessor.FIND_LINEAR_WHITESPACE));
assertEquals(28, buf.forEachByte(24, length - 24, ByteBufProcessor.FIND_NON_LINEAR_WHITESPACE));
assertEquals(-1, buf.forEachByte(28, length - 28, ByteBufProcessor.FIND_LINEAR_WHITESPACE));
}
@Test
public void testBackward() {
final ByteBuf buf = releaseLater(
Unpooled.copiedBuffer("abc\r\n\ndef\r\rghi\n\njkl\0\0mno \t\tx", CharsetUtil.ISO_8859_1));
final int length = buf.readableBytes();
assertEquals(27, buf.forEachByteDesc(0, length, ByteBufProcessor.FIND_LINEAR_WHITESPACE));
assertEquals(23, buf.forEachByteDesc(0, 28, ByteBufProcessor.FIND_NON_LINEAR_WHITESPACE));
assertEquals(20, buf.forEachByteDesc(0, 24, ByteBufProcessor.FIND_NUL));
assertEquals(18, buf.forEachByteDesc(0, 21, ByteBufProcessor.FIND_NON_NUL));
assertEquals(15, buf.forEachByteDesc(0, 19, ByteBufProcessor.FIND_LF));
assertEquals(13, buf.forEachByteDesc(0, 16, ByteBufProcessor.FIND_NON_LF));
assertEquals(10, buf.forEachByteDesc(0, 14, ByteBufProcessor.FIND_CR));
assertEquals(8, buf.forEachByteDesc(0, 11, ByteBufProcessor.FIND_NON_CR));
assertEquals(5, buf.forEachByteDesc(0, 9, ByteBufProcessor.FIND_CRLF));
assertEquals(2, buf.forEachByteDesc(0, 6, ByteBufProcessor.FIND_NON_CRLF));
assertEquals(-1, buf.forEachByteDesc(0, 3, ByteBufProcessor.FIND_CRLF));
}
}