assertFalse(PLAIN_TEXT_UTF_8.hasWildcard());
    assertFalse(JPEG.hasWildcard());
    assertTrue(ANY_TYPE.hasWildcard());
    assertTrue(ANY_APPLICATION_TYPE.hasWildcard());
    assertTrue(ANY_AUDIO_TYPE.hasWildcard());
    assertTrue(ANY_IMAGE_TYPE.hasWildcard());
    assertTrue(ANY_TEXT_TYPE.hasWildcard());
    assertTrue(ANY_VIDEO_TYPE.hasWildcard());
  }

  public void testIs() {

    withCharset.parsedCharset = Optional.of(charset);
    return withCharset;
  }

  /** Returns true if either the type or subtype is the wildcard. */
  public boolean hasWildcard() {
    return type.equals(WILDCARD) || subtype.equals(WILDCARD);
  }

  /**
   * Returns {@code true} if this instance falls within the range (as defined by <a