/*

 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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import org.reactivestreams.tck.TestEnvironment;

import org.reactivestreams.tck.flow.FlowPublisherVerification;

import java.net.http.HttpRequest.BodyPublishers;

import java.nio.ByteBuffer;

import java.util.concurrent.Flow.Publisher;

/* See TckDriver.java for more information */

public class BodyPublishersOfSubByteArray

        extends FlowPublisherVerification<ByteBuffer> {

    private static final int ELEMENT_SIZE = 16 * 1024;

    public BodyPublishersOfSubByteArray() {

        super(new TestEnvironment(450L));

    }

    @Override

    public Publisher<ByteBuffer> createFlowPublisher(long nElements) {

        int prefixLen = S.randomIntUpTo(13);

        int postfixLen = S.randomIntUpTo(17);

        byte[] b = S.arrayOfNRandomBytes(nElements * ELEMENT_SIZE);

        byte[] contents = new byte[prefixLen + b.length + postfixLen];

        System.arraycopy(b, 0, contents, prefixLen, b.length);

        return BodyPublishers.ofByteArray(contents, prefixLen, b.length);

    }

    @Override

    public Publisher<ByteBuffer> createFailedFlowPublisher() {

        return null;

    }

    @Override

    public long maxElementsFromPublisher() {

        return 21;

    }

}