}

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

  /**
   * Creates a media type with the "video" type and the given subtype.
   *

    assertThat(newType.type()).isEqualTo("image");
    assertThat(newType.subtype()).isEqualTo("yams");
  }

  public void testCreateTextType() {
    MediaType newType = MediaType.createTextType("yams");
    assertThat(newType.type()).isEqualTo("text");
    assertThat(newType.subtype()).isEqualTo("yams");
  }

  public void testCreateVideoType() {