kittest: No `debug_open_snapshot` on wasm (#7606)

Cargo.toml

@@ -94,7 +94,7 @@ env_logger = { version = "0.11.8", default-features = false }
 glow = "0.16.0"
 glutin = { version = "0.32.3", default-features = false }
 glutin-winit = { version = "0.5.0", default-features = false }
-home = "0.5.9" # need to puse to an old version because newer version are incompatible with wasm (at least when building Rerun)
+home = "0.5.9"
 image = { version = "0.25.6", default-features = false }
 js-sys = "0.3.81"
 kittest = { version = "0.2.0", git = "https://github.com/rerun-io/kittest.git" }

crates/egui_kittest/Cargo.toml

@@ -61,12 +61,15 @@ wgpu = { workspace = true, features = [
 
 # snapshot dependencies
 dify = { workspace = true, optional = true }
-open = { workspace = true, optional = true }
-tempfile = { workspace = true, optional = true }
 
 # Enable this when generating docs.
 document-features = { workspace = true, optional = true }
 
+# Native dependencies:
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
+open = { workspace = true, optional = true }
+tempfile = { workspace = true, optional = true }
+
 [dev-dependencies]
 egui = { workspace = true, features = ["default_fonts"] }
 image = { workspace = true, features = ["png"] }

crates/egui_kittest/src/snapshot.rs

@@ -641,6 +641,7 @@ impl<State> Harness<'_, State> {
     /// This method is marked as deprecated to trigger errors in CI (so that it's not accidentally
     /// committed).
     #[deprecated = "Only for debugging, don't commit this."]
+    #[cfg(not(target_arch = "wasm32"))]
     pub fn debug_open_snapshot(&mut self) {
         let image = self
             .render()