message: Progresses Updates tests
diff: @@ -139,6 +139,7 @@ impl ImageFormat {
  ///
  /// ```
  /// use image::ImageFormat;
  + /// #[cfg(feature = "png")]
  /// assert_eq!(ImageFormat::Png.can_read(), true);
  /// ```
  #[inline]
  @@ -179,7 +180,9 @@ impl ImageFormat {
  ///
  /// ```
  /// use image::ImageFormat;
  + /// #[cfg(feature = "png")]
  /// assert_eq!(ImageFormat::Png.can_write(), true);
  + /// #[cfg(feature = "pnm")]
  /// assert_eq!(ImageFormat::Pnm.can_write(), false);
  /// ```
  #[inline]
  