* @param file a file in the directory to check. This file shouldn't already exist!
 */
internal fun FileSystem.isCivilized(file: Path): Boolean {
  sink(file).use {
    try {
      delete(file)
      return true
    } catch (_: IOException) {
    }
  }
  delete(file)
  return false
}

/** Delete file we expect but don't require to exist. */
internal fun FileSystem.deleteIfExists(path: Path) {
  try {

    return connect
  }

  /**
   * Returns the connection already attached to the call if it's eligible for a new exchange.
   *
   * If the call's connection exists and is eligible for another exchange, it is returned. If it
   * exists but cannot be used for another exchange, it is closed and this returns null.
   */
  private fun planReuseCallConnection(): ReusePlan? {
    // This may be mutated by releaseConnectionNoEvents()!

     * process based on the information contained in the request.
     *
     * @param invokerRequest the request containing all necessary information for the invocation
     * @return an integer representing the exit code of the invocation (0 typically indicates success)
     * @throws InvokerException if an error occurs during the invocation process.
     */
    int invoke(@Nonnull InvokerRequest invokerRequest) throws InvokerException;

     */

    public static String getProperty(final String key) {
        return prp.getProperty(key);
    }

    /**
     * Retrieve an <code>int</code>. If the key does not exist or
     * cannot be converted to an <code>int</code>, the provided default
     * argument will be returned.
     *
     * @param key the property key to look up

     * This class wraps a {@link FileInputStream} to read from the specified temporary file.
     *
     * @param tempFile the temporary file to be read
     * @throws FileNotFoundException if the specified file does not exist
     */
    public TemporaryFileInputStream(final File tempFile) throws FileNotFoundException {
        this.tempFile = tempFile;
        fileInputStream = new FileInputStream(tempFile);
    }

    /**

    testers.add(SetCreationTester.class);
    testers.add(SetHashCodeTester.class);
    testers.add(SetEqualsTester.class);
    testers.add(SetRemoveTester.class);
    // SetRemoveAllTester doesn't exist because, Sets not permitting
    // duplicate elements, there are no tests for Set.removeAll() that aren't
    // covered by CollectionRemoveAllTester.
    return testers;
  }

  @Override

            version = constructVersion(repoMetadata.getVersioning(), artifact.getBaseVersion());
        }

        if (version == null) {
            // use the local copy, or if it doesn't exist - go to the remote repo for it
            version = artifact.getBaseVersion();
        }

        // TODO also do this logging for other metadata?
        // TODO figure out way to avoid duplicated message

        when(urlQueueService.poll(anyString())).thenReturn(null);
        crawlerContext.setStatus(CrawlerStatus.RUNNING);
        crawlerContext.maxThreadCheckCount = 1; // Will exit after 1 check

        crawlerThread.run();

        verify(urlQueueService, times(1)).poll(anyString());
    }

    /**
     * Test run method with crawler status DONE.
     */

            try {
                webConfig = webConfigService.getWebConfig(getWebConfigId()).get();
            } catch (final Exception e) {
                logger.warn("Web Config {} does not exist.", getWebConfigId(), e);
            }
        }
        return webConfig;
    }

    public String getId() {
        return asDocMeta().id();
    }

    public void setId(final String id) {

        @SuppressWarnings("unchecked")
        BiConsumer<Integer, Integer> consumer = mock(BiConsumer.class);

        // Act: for each input, if a mapping exists, notify the consumer
        for (int dos : inputs) {
            int nt = findNtStatusOrMinusOne(dos);
            if (nt != -1) {
                consumer.accept(dos, nt);
            }
        }