RetainedSlicedByteBufTest.java

/*
 * 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:
 *
 *   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.internal.PlatformDependent;
import org.junit.Assume;

import static org.junit.Assert.assertEquals;

public class RetainedSlicedByteBufTest extends SlicedByteBufTest {
    @Override
    protected ByteBuf newBuffer(int length, int maxCapacity) {
        Assume.assumeTrue(maxCapacity == Integer.MAX_VALUE);
        ByteBuf wrapped = Unpooled.wrappedBuffer(new byte[length * 2]);
        ByteBuf buffer = wrapped.retainedSlice(length > 1 ?
                        PlatformDependent.threadLocalRandom().nextInt(length - 1) + 1 : 0, length);
        wrapped.release();

        assertEquals(0, buffer.readerIndex());
        assertEquals(length, buffer.writerIndex());
        return buffer;
    }
}