assertEquals("text", newType.type());
    assertEquals("yams", newType.subtype());
  }

  public void testCreateVideoType() {
    MediaType newType = MediaType.createVideoType("yams");
    assertEquals("video", newType.type());
    assertEquals("yams", newType.subtype());
  }

  public void testGetType() {
    assertEquals("text", MediaType.parse("text/plain").type());

  }

  /**
   * Creates a media type with the "video" type and the given subtype.
   *
   * @throws IllegalArgumentException if subtype is invalid
   */
  static MediaType createVideoType(String subtype) {
    return create(VIDEO_TYPE, subtype);
  }

  private static String normalizeToken(String token) {
    checkArgument(TOKEN_MATCHER.matchesAllOf(token));