public PermissionHelper permissionHelper;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        permissionHelper = new PermissionHelper();
        permissionHelper.systemHelper = new SystemHelper();
    }

    public void test_encode() {
        assertNull(permissionHelper.encode(null));
        assertNull(permissionHelper.encode(""));

  private static final int NODE_POOL_SIZE = 1000; // must be >> NUM_NODES

  @Test
  public void directedGraph() {
    testGraphMutation(GraphBuilder.directed());
  }

  @Test
  public void undirectedGraph() {
    testGraphMutation(GraphBuilder.undirected());
  }

  private static void testGraphMutation(GraphBuilder<? super Integer> graphBuilder) {

  @SuppressWarnings({"rawtypes", "unchecked"})
  public void testForwarding() {
    new ForwardingWrapperTester()
        .testForwarding(
            Set.class,
            new Function<Set, Set>() {
              @Override
              public Set apply(Set delegate) {
                return wrap(delegate);
              }
            });
  }

  public void testEquals() {
    Set<String> set1 = ImmutableSet.of("one");

   *
   * @param from the bytes to write
   * @param to the destination file
   * @throws IOException if an I/O error occurs
   */
  public static void write(byte[] from, File to) throws IOException {
    asByteSink(to).write(from);
  }

  /**
   * Writes a character sequence (such as a string) to a file using the given character set.
   *

      return chain.proceed(chain.request());
    }
  };

  private final OkHttpClient client = new OkHttpClient.Builder()
      .addNetworkInterceptor(CHECK_HANDSHAKE_INTERCEPTOR)
      .build();

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("https://publicobject.com/helloworld.txt")
        .build();

    try (Response response = client.newCall(request).execute()) {

  }

  @Override
  public final int previousIndex() {
    return backingIterator().previousIndex();
  }

  @Override
  public void set(@ParametricNullness T element) {
    throw new UnsupportedOperationException();
  }

  @Override
  public void add(@ParametricNullness T element) {
    throw new UnsupportedOperationException();
  }

  }

  @Override
  public final int previousIndex() {
    return backingIterator().previousIndex();
  }

  @Override
  public void set(@ParametricNullness T element) {
    throw new UnsupportedOperationException();
  }

  @Override
  public void add(@ParametricNullness T element) {
    throw new UnsupportedOperationException();
  }

        return type;
    }

    public void setType(TypeMetaData type) {
        this.type = type;
    }

    public String getSignature() {
        StringBuilder builder = new StringBuilder();
        builder.append(type.getSignature());
        builder.append(" ");
        builder.append(name);
        return builder.toString();
    }

    @Override
    public void visitTypes(Action<TypeMetaData> action) {

    this(path, channel);
    this.inetSocketAddress = address;
  }

  @Override public void connect(SocketAddress endpoint) throws IOException {
    this.inetSocketAddress = (InetSocketAddress) endpoint;
    super.connect(new UnixSocketAddress(path), 0);
  }

  @Override public void connect(SocketAddress endpoint, int timeout) throws IOException {
    this.inetSocketAddress = (InetSocketAddress) endpoint;

        .allowsSelfLoops(allowsSelfLoops)
        .incidentEdgeOrder(incidentEdgeOrder)
        .build();
  }

  @Override
  final void addNode(Integer n) {
    graphAsMutableGraph.addNode(n);
  }

  @Override
  final void putEdge(Integer n1, Integer n2) {
    graphAsMutableGraph.putEdge(n1, n2);
  }