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ByteBufUtilTest.java
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ByteBufUtilTest.java
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/*
* Copyright 2014 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 io.netty.util.ReferenceCountUtil;
import org.junit.Assert;
import org.junit.Test;
import java.nio.charset.Charset;
public class ByteBufUtilTest {
@Test
public void testWriteUsAscii() {
String usAscii = "NettyRocks";
ByteBuf buf = ReferenceCountUtil.releaseLater(Unpooled.buffer(16));
buf.writeBytes(usAscii.getBytes(CharsetUtil.US_ASCII));
ByteBuf buf2 = ReferenceCountUtil.releaseLater(Unpooled.buffer(16));
ByteBufUtil.writeAscii(buf2, usAscii);
Assert.assertEquals(buf, buf2);
}
@Test
public void testWriteUsAsciiWrapped() {
String usAscii = "NettyRocks";
ByteBuf buf = Unpooled.unreleasableBuffer(ReferenceCountUtil.releaseLater(Unpooled.buffer(16)));
assertWrapped(buf);
buf.writeBytes(usAscii.getBytes(CharsetUtil.US_ASCII));
ByteBuf buf2 = Unpooled.unreleasableBuffer(ReferenceCountUtil.releaseLater(Unpooled.buffer(16)));
assertWrapped(buf2);
ByteBufUtil.writeAscii(buf2, usAscii);
Assert.assertEquals(buf, buf2);
}
@Test
public void testWriteUtf8() {
String usAscii = "Some UTF-8 like äÄ∏ŒŒ";
ByteBuf buf = ReferenceCountUtil.releaseLater(Unpooled.buffer(16));
buf.writeBytes(usAscii.getBytes(CharsetUtil.UTF_8));
ByteBuf buf2 = ReferenceCountUtil.releaseLater(Unpooled.buffer(16));
ByteBufUtil.writeUtf8(buf2, usAscii);
Assert.assertEquals(buf, buf2);
}
@Test
public void testWriteUtf8Surrogates() {
// leading surrogate + trailing surrogate
String surrogateString = new StringBuilder(2)
.append('\uD800')
.append('\uDC00')
.toString();
ByteBuf buf = ReferenceCountUtil.releaseLater(Unpooled.buffer(16));
buf.writeBytes(surrogateString.getBytes(CharsetUtil.UTF_8));
ByteBuf buf2 = ReferenceCountUtil.releaseLater(Unpooled.buffer(16));
ByteBufUtil.writeUtf8(buf2, surrogateString);
Assert.assertEquals(buf, buf2);
}
@Test
public void testWriteUtf8Wrapped() {
String usAscii = "Some UTF-8 like äÄ∏ŒŒ";
ByteBuf buf = Unpooled.unreleasableBuffer(ReferenceCountUtil.releaseLater(Unpooled.buffer(16)));
assertWrapped(buf);
buf.writeBytes(usAscii.getBytes(CharsetUtil.UTF_8));
ByteBuf buf2 = Unpooled.unreleasableBuffer(ReferenceCountUtil.releaseLater(Unpooled.buffer(16)));
assertWrapped(buf2);
ByteBufUtil.writeUtf8(buf2, usAscii);
Assert.assertEquals(buf, buf2);
}
private static void assertWrapped(ByteBuf buf) {
Assert.assertTrue(buf instanceof WrappedByteBuf);
}
@Test
public void testDecodeUsAscii() {
testDecodeString("This is a test", CharsetUtil.US_ASCII);
}
@Test
public void testDecodeUtf8() {
testDecodeString("Some UTF-8 like äÄ∏ŒŒ", CharsetUtil.UTF_8);
}
private static void testDecodeString(String text, Charset charset) {
ByteBuf buffer = Unpooled.copiedBuffer(text, charset);
Assert.assertEquals(text, ByteBufUtil.decodeString(buffer, 0, buffer.readableBytes(), charset));
buffer.release();
}
@Test
public void testToStringDoesNotThrowIndexOutOfBounds() {
CompositeByteBuf buffer = Unpooled.compositeBuffer();
try {
byte[] bytes = "1234".getBytes(CharsetUtil.UTF_8);
buffer.addComponent(Unpooled.buffer(bytes.length).writeBytes(bytes));
buffer.addComponent(Unpooled.buffer(bytes.length).writeBytes(bytes));
Assert.assertEquals("1234", buffer.toString(bytes.length, bytes.length, CharsetUtil.UTF_8));
} finally {
buffer.release();
}
}
}