}

    def "can hash input while copying it"() {
        def input = new ByteArrayInputStream("hello".bytes)
        def output = new ByteArrayOutputStream()
        when:
        def hash = new DefaultStreamHasher().hashCopy(input, output)
        then:
        hash.toString() == "af67a92e9f73b51572e9b94e343d2840"
        output.toByteArray() == "hello".bytes
    }

    HashCode hash(InputStream inputStream);

    /**
     * Returns the hash of the given input stream while copying the data to the output stream.
     * The method will not close either stream.
     */
    HashCode hashCopy(InputStream inputStream, OutputStream outputStream) throws IOException;

    assertSize(3);
  }

  public void testEquals() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    // We know that we have only added non-null Characters.
    Table<String, Integer, Character> hashCopy =
        HashBasedTable.create((Table<String, Integer, ? extends Character>) table);
    Table<String, Integer, C> reordered = create("foo", 3, 'c', "foo", 1, 'a', "bar", 1, 'b');

        } catch (IOException e) {
            throw new UncheckedIOException("Failed to create MD5 hash for file content.", e);
        }
    }

    @Override
    public HashCode hashCopy(InputStream inputStream, OutputStream outputStream) throws IOException {
        return doHash(inputStream, outputStream);
    }

        try (CountingOutputStream output = new CountingOutputStream(new FileOutputStream(file))) {
            HashCode hash = streamHasher.hashCopy(input, output);
            chmodUnpackedFile(entry, file);
            String internedAbsolutePath = stringInterner.intern(file.getAbsolutePath());
            String internedFileName = stringInterner.intern(fileName);