From 7d7c83616cc434f11a30b3e7f4577a55206cc76d Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Thu, 5 Nov 2026 20:26:42 +0100
Subject: dashboard: browser checks

---
 src/api/dashboard/mod.rs | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'src/api/dashboard/mod.rs')

diff --git a/src/api/dashboard/mod.rs b/src/api/dashboard/mod.rs
index 4ba25c7..bea5493 100644
--- a/src/api/dashboard/mod.rs
+++ b/src/api/dashboard/mod.rs
@@ -760,6 +760,33 @@ fn snapshot_event(published: &Published) -> Event {
 mod tests {
     use super::*;
 
+    /// The page in a browser (`check.js`): it loads without errors, the peers table and
+    /// the map draw what the state says, and a large map doesn't hold the page up.
+    /// Needs Node.js with Playwright's library and its Chromium (`check.nix` gives them),
+    /// so only when asked: `cargo test --features dashboard dashboard_in_a_browser --
+    /// --ignored`.
+    #[test]
+    #[ignore]
+    fn dashboard_in_a_browser() {
+        let file =
+            std::env::temp_dir().join(format!("continuum-dashboard-{}.html", std::process::id()));
+        std::fs::write(&file, &page().1).expect("page written");
+        let check =
+            std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("src/api/dashboard/check.js");
+        let status = std::process::Command::new("node")
+            .arg(&check)
+            .arg(&file)
+            .status()
+            .unwrap_or_else(|error| {
+                panic!(
+                    "Node.js doesn't run ({error}): the browser checks need `node` on the \
+                     PATH, with Playwright's library and its Chromium (check.nix)"
+                )
+            });
+        let _ = std::fs::remove_file(&file);
+        assert!(status.success(), "the browser checks failed");
+    }
+
     #[test]
     fn merge_patches() {
         let old = json!({ "a": 1, "b": { "c": 2, "d": [1, 2] }, "gone": true });
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