From 68c58c85e0a8295ff169307380006ea40cc7c602 Mon Sep 17 00:00:00 2001
From: Piotr Pasza Storozenko <piotr@appsilon.com>
Date: Mon, 7 Oct 2024 12:30:31 +0000
Subject: [PATCH] tests: refactor startup tests

---
 tests/playwirght/test_ui.py | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/tests/playwirght/test_ui.py b/tests/playwirght/test_ui.py
index fe40628..bb5e403 100644
--- a/tests/playwirght/test_ui.py
+++ b/tests/playwirght/test_ui.py
@@ -9,7 +9,7 @@ def test_startup(page: Page, app: ShinyAppProc):
     """
     page.goto(app.url)
 
-    # Wait for the page to load fully
+    # Shiny apps require this wait
     page.wait_for_load_state("networkidle")
 
     # When shiny fails after startup, it adds the #shiny-disconnected-overlay div
@@ -17,6 +17,17 @@ def test_startup(page: Page, app: ShinyAppProc):
     assert not page.query_selector("#shiny-disconnected-overlay"), "The shiny app failed to start"
 
 
+def test_startup_without_errors(page: Page, app: ShinyAppProc):
+    """
+    Tests if shiny app started without errors.
+    """
+    page.goto(app.url)
+
+    page.wait_for_load_state("networkidle")
+
+    assert not page.query_selector("div.shiny-output-error"), "The shiny app started with errors"
+
+
 def test_link_button(page: Page, app: ShinyAppProc):
     """
     Test that the link_button contains the link to the docs.