105 lines
3.6 KiB
Java
105 lines
3.6 KiB
Java
/*
|
|
* 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 org.hamcrest.Matchers.*;
|
|
import static org.junit.Assert.*;
|
|
|
|
public class EmptyByteBufTest {
|
|
|
|
@Test
|
|
public void testIsWritable() {
|
|
EmptyByteBuf empty = new EmptyByteBuf(UnpooledByteBufAllocator.DEFAULT);
|
|
assertFalse(empty.isWritable());
|
|
assertFalse(empty.isWritable(1));
|
|
}
|
|
|
|
@Test
|
|
public void testWriteEmptyByteBuf() {
|
|
EmptyByteBuf empty = new EmptyByteBuf(UnpooledByteBufAllocator.DEFAULT);
|
|
empty.writeBytes(Unpooled.EMPTY_BUFFER); // Ok
|
|
ByteBuf nonEmpty = UnpooledByteBufAllocator.DEFAULT.buffer().writeBoolean(false);
|
|
try {
|
|
empty.writeBytes(nonEmpty);
|
|
fail();
|
|
} catch (IndexOutOfBoundsException ignored) {
|
|
// Ignore.
|
|
} finally {
|
|
nonEmpty.release();
|
|
}
|
|
}
|
|
|
|
@Test
|
|
public void testIsReadable() {
|
|
EmptyByteBuf empty = new EmptyByteBuf(UnpooledByteBufAllocator.DEFAULT);
|
|
assertFalse(empty.isReadable());
|
|
assertFalse(empty.isReadable(1));
|
|
}
|
|
|
|
@Test
|
|
public void testArray() {
|
|
EmptyByteBuf empty = new EmptyByteBuf(UnpooledByteBufAllocator.DEFAULT);
|
|
assertThat(empty.hasArray(), is(true));
|
|
assertThat(empty.array().length, is(0));
|
|
assertThat(empty.arrayOffset(), is(0));
|
|
}
|
|
|
|
@Test
|
|
public void testNioBuffer() {
|
|
EmptyByteBuf empty = new EmptyByteBuf(UnpooledByteBufAllocator.DEFAULT);
|
|
assertThat(empty.nioBufferCount(), is(1));
|
|
assertThat(empty.nioBuffer().position(), is(0));
|
|
assertThat(empty.nioBuffer().limit(), is(0));
|
|
assertThat(empty.nioBuffer(), is(sameInstance(empty.nioBuffer())));
|
|
assertThat(empty.nioBuffer(), is(sameInstance(empty.internalNioBuffer(empty.readerIndex(), 0))));
|
|
}
|
|
|
|
@Test
|
|
public void testMemoryAddress() {
|
|
EmptyByteBuf empty = new EmptyByteBuf(UnpooledByteBufAllocator.DEFAULT);
|
|
if (empty.hasMemoryAddress()) {
|
|
assertThat(empty.memoryAddress(), is(not(0L)));
|
|
} else {
|
|
try {
|
|
empty.memoryAddress();
|
|
fail();
|
|
} catch (UnsupportedOperationException ignored) {
|
|
// Ignore.
|
|
}
|
|
}
|
|
}
|
|
|
|
@Test
|
|
public void consistentEqualsAndHashCodeWithAbstractBytebuf() {
|
|
ByteBuf empty = new EmptyByteBuf(UnpooledByteBufAllocator.DEFAULT);
|
|
ByteBuf emptyAbstract = new UnpooledHeapByteBuf(UnpooledByteBufAllocator.DEFAULT, 0, 0);
|
|
assertEquals(emptyAbstract, empty);
|
|
assertEquals(emptyAbstract.hashCode(), empty.hashCode());
|
|
assertEquals(EmptyByteBuf.EMPTY_BYTE_BUF_HASH_CODE, empty.hashCode());
|
|
assertTrue(emptyAbstract.release());
|
|
assertFalse(empty.release());
|
|
}
|
|
|
|
@Test
|
|
public void testGetCharSequence() {
|
|
EmptyByteBuf empty = new EmptyByteBuf(UnpooledByteBufAllocator.DEFAULT);
|
|
assertEquals("", empty.readCharSequence(0, CharsetUtil.US_ASCII));
|
|
}
|
|
|
|
}
|