}
        };
    EscaperAsserts.assertBasic(wrappingEscaper);
    // escape everything.
    assertThat(wrappingEscaper.escape("[FOO]")).isEqualTo("{[}{F}{O}{O}{]}");
  }

  public void testDeleteUnsafeChars() throws IOException {
    CharEscaper deletingEscaper =
        new ArrayBasedCharEscaper(NO_REPLACEMENTS, ' ', '~') {
          private final char[] noChars = new char[0];

          @Override