tests: fix timing problems in simple daemon test

This test crashed frequently in the past, but went back to green when rerun,
most of the time. The final check, if the view was stopped correctly, was
always the failing check.

This seems to be a timing issue, because the browser seems not to wait long
enough, before checking if the string `view stopped` appeared.

This patch adds an `lona.pytest.eventually` call, to "fix" all timing issues by
simply retrying the checks.
This is no permanent solution, but will work for now.

Signed-off-by: Florian Scherf <mail@florianscherf.de>

tests/test_daemon_views.py

@@ -6,6 +6,8 @@ async def test_simple_daemon_view(lona_app_context):
 
  from playwright.async_api import async_playwright
 
+ from lona.pytest import eventually
+
  def setup_app(app):
  from datetime import datetime
 
@@ -77,9 +79,12 @@ def handle_request(self, request):
 
  # stop view
  await page.click('#stop')
- message3 = await page.inner_text('#message')
 
- assert message3 == 'view stopped'
+ for attempt in eventually():
+ async with attempt:
+ message3 = await page.inner_text('#message')
+
+ assert message3 == 'view stopped'
 
 
 async def test_multi_tab_daemon_view(lona_app_context):