fix: harden Lightpanda startup timeouts (#762)

cli/src/native/e2e_tests.rs

@@ -86,6 +86,92 @@ async fn e2e_launch_navigate_evaluate_close() {
     assert_eq!(get_data(&resp)["closed"], true);
 }
 
+#[tokio::test]
+#[ignore]
+async fn e2e_lightpanda_launch_can_open_page() {
+    let lightpanda_bin = match std::env::var("LIGHTPANDA_BIN") {
+        Ok(path) if !path.is_empty() => path,
+        _ => return,
+    };
+
+    let mut state = DaemonState::new();
+
+    let resp = tokio::time::timeout(
+        tokio::time::Duration::from_secs(20),
+        execute_command(
+            &json!({
+                "id": "1",
+                "action": "launch",
+                "headless": true,
+                "engine": "lightpanda",
+                "executablePath": lightpanda_bin,
+            }),
+            &mut state,
+        ),
+    )
+    .await
+    .expect("Lightpanda launch should not hang");
+
+    assert_success(&resp);
+    assert_eq!(get_data(&resp)["launched"], true);
+
+    let resp = execute_command(
+        &json!({ "id": "2", "action": "navigate", "url": "https://example.com" }),
+        &mut state,
+    )
+    .await;
+    assert_success(&resp);
+    assert_eq!(get_data(&resp)["url"], "https://example.com/");
+    assert_eq!(get_data(&resp)["title"], "Example Domain");
+
+    let resp = execute_command(&json!({ "id": "3", "action": "close" }), &mut state).await;
+    assert_success(&resp);
+    assert_eq!(get_data(&resp)["closed"], true);
+}
+
+#[tokio::test]
+#[ignore]
+async fn e2e_lightpanda_auto_launch_can_open_page() {
+    let lightpanda_bin = match std::env::var("LIGHTPANDA_BIN") {
+        Ok(path) if !path.is_empty() => path,
+        _ => return,
+    };
+
+    let prev_engine = std::env::var("AGENT_BROWSER_ENGINE").ok();
+    let prev_path = std::env::var("AGENT_BROWSER_EXECUTABLE_PATH").ok();
+    std::env::set_var("AGENT_BROWSER_ENGINE", "lightpanda");
+    std::env::set_var("AGENT_BROWSER_EXECUTABLE_PATH", &lightpanda_bin);
+
+    let mut state = DaemonState::new();
+
+    let resp = tokio::time::timeout(
+        tokio::time::Duration::from_secs(20),
+        execute_command(
+            &json!({ "id": "1", "action": "navigate", "url": "https://example.com" }),
+            &mut state,
+        ),
+    )
+    .await
+    .expect("Lightpanda auto-launch should not hang");
+
+    match prev_engine {
+        Some(value) => std::env::set_var("AGENT_BROWSER_ENGINE", value),
+        None => std::env::remove_var("AGENT_BROWSER_ENGINE"),
+    }
+    match prev_path {
+        Some(value) => std::env::set_var("AGENT_BROWSER_EXECUTABLE_PATH", value),
+        None => std::env::remove_var("AGENT_BROWSER_EXECUTABLE_PATH"),
+    }
+
+    assert_success(&resp);
+    assert_eq!(get_data(&resp)["url"], "https://example.com/");
+    assert_eq!(get_data(&resp)["title"], "Example Domain");
+
+    let resp = execute_command(&json!({ "id": "2", "action": "close" }), &mut state).await;
+    assert_success(&resp);
+    assert_eq!(get_data(&resp)["closed"], true);
+}
+
 // ---------------------------------------------------------------------------
 // Snapshot with refs and ref-based click
 // ---------------------------------------------------------------------------