Strengthen PRD site rendering checks

crates/ely_app/src/services/servo_sidecar.rs

@@ -289,6 +289,24 @@ impl SidecarSnapshot {
         self.height
     }
 
+    #[cfg(all(test, feature = "live-site-smoke"))]
+    #[must_use]
+    pub(crate) fn non_white_pixel_count(&self) -> u64 {
+        self.non_white_pixel_count
+    }
+
+    #[cfg(all(test, feature = "live-site-smoke"))]
+    #[must_use]
+    pub(crate) fn content_pixel_count(&self) -> u64 {
+        self.content_pixel_count
+    }
+
+    #[cfg(all(test, feature = "live-site-smoke"))]
+    #[must_use]
+    pub(crate) fn sample_hash(&self) -> u64 {
+        self.sample_hash
+    }
+
     #[must_use]
     pub fn into_rgba_bytes(self) -> Vec<u8> {
         self.rgba_bytes

crates/ely_app/src/shell/web_surface_frame.rs

@@ -22,6 +22,12 @@ pub(super) struct WebSurfaceFrame {
     scroll_offset: WebSurfaceScrollOffset,
     click_point: Option<WebSurfaceClickPoint>,
     typed_text: Option<String>,
+    #[cfg(all(test, feature = "live-site-smoke"))]
+    non_white_pixel_count: u64,
+    #[cfg(all(test, feature = "live-site-smoke"))]
+    content_pixel_count: u64,
+    #[cfg(all(test, feature = "live-site-smoke"))]
+    sample_hash: u64,
     pub(super) image: Arc<RenderImage>,
 }
 
@@ -38,6 +44,12 @@ impl WebSurfaceFrame {
         let loaded_url = snapshot.loaded_url().map(str::to_string);
         let title = snapshot.title().map(str::to_string);
         let render_state = snapshot.render_state().to_string();
+        #[cfg(all(test, feature = "live-site-smoke"))]
+        let non_white_pixel_count = snapshot.non_white_pixel_count();
+        #[cfg(all(test, feature = "live-site-smoke"))]
+        let content_pixel_count = snapshot.content_pixel_count();
+        #[cfg(all(test, feature = "live-site-smoke"))]
+        let sample_hash = snapshot.sample_hash();
         let rgba_bytes = snapshot.into_rgba_bytes();
 
         let Some(buffer) = ImageBuffer::<Rgba<u8>, _>::from_raw(width, height, rgba_bytes) else {
@@ -56,6 +68,12 @@ impl WebSurfaceFrame {
             scroll_offset,
             click_point,
             typed_text,
+            #[cfg(all(test, feature = "live-site-smoke"))]
+            non_white_pixel_count,
+            #[cfg(all(test, feature = "live-site-smoke"))]
+            content_pixel_count,
+            #[cfg(all(test, feature = "live-site-smoke"))]
+            sample_hash,
             image: Arc::new(RenderImage::new([image::Frame::new(image_buffer)])),
         })
     }
@@ -99,6 +117,21 @@ impl WebSurfaceFrame {
     pub(super) fn typed_text(&self) -> Option<&str> {
         self.typed_text.as_deref()
     }
+
+    #[cfg(all(test, feature = "live-site-smoke"))]
+    pub(super) fn non_white_pixel_count(&self) -> u64 {
+        self.non_white_pixel_count
+    }
+
+    #[cfg(all(test, feature = "live-site-smoke"))]
+    pub(super) fn content_pixel_count(&self) -> u64 {
+        self.content_pixel_count
+    }
+
+    #[cfg(all(test, feature = "live-site-smoke"))]
+    pub(super) fn sample_hash(&self) -> u64 {
+        self.sample_hash
+    }
 }
 
 #[derive(Debug, Error)]

crates/ely_app/src/shell/web_surface_live_site_tests.rs

@@ -20,6 +20,7 @@ use super::WebSurfaceStore;
 
 const LIVE_SURFACE_WIDTH: u32 = 934;
 const LIVE_SURFACE_HEIGHT: u32 = 657;
+const MINIMUM_CONTENT_PIXELS: u64 = 1_000;
 
 #[test]
 fn web_surface_cases_cover_prd_reference_urls() -> Result<(), Box<dyn Error>> {
@@ -78,6 +79,9 @@ fn assert_prd_frame_is_ready(frame: &WebSurfaceFrame, case: &LiveSiteCase) {
     assert!(frame.url_label().contains(normalized_url(case.url)), "{}", frame.url_label());
     assert!(frame.title_label().contains(case.title_fragment), "{}", frame.title_label());
     assert_eq!(frame.detail_label(), format!("{} 934x657", frame.render_state()), "{}", case.url);
+    assert!(frame.non_white_pixel_count() > 0, "{}", case.url);
+    assert!(frame.content_pixel_count() >= MINIMUM_CONTENT_PIXELS, "{}", case.url);
+    assert!(frame.sample_hash() > 0, "{}", case.url);
 }
 
 fn assert_render_state_is_open(state: &str, url: &str) {