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Java bitstream structure I/O (Test suite)

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/*
 * Copyright © 2019 Mark Raynsford  https://www.io7m.com
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

package com.io7m.jbssio.tests;

import com.io7m.jbssio.api.BSSWriterRandomAccessType;
import com.io7m.jbssio.vanilla.BSSWriters;

import java.io.IOException;
import java.net.URI;
import java.nio.channels.FileChannel;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.util.HashMap;
import java.util.OptionalLong;

public final class BSSWritersRandomAccessSeekableChannelTest extends BSSWritersRandomAccessChannelContract
{
  private final HashMap pathsOf = new HashMap<>();

  @Override
  protected FileChannel channelOf(final byte[] data)
    throws IOException
  {
    final var path = Files.createTempFile("jbssio-writers-", ".dat");
    Files.write(path, data);
    this.pathsOf.put(data, path);
    return FileChannel.open(path, StandardOpenOption.WRITE, StandardOpenOption.READ);
  }

  @Override
  protected BSSWriterRandomAccessType writerOf(final FileChannel channel)
    throws IOException
  {
    return new BSSWriters().createWriterFromChannel(
      URI.create("urn:fake"),
      channel,
      "a",
      OptionalLong.of(channel.size()));
  }

  @Override
  protected byte[] writtenDataOf(final byte[] data)
    throws IOException
  {
    return Files.readAllBytes(this.pathsOf.get(data));
  }
}