fix: use a non threaded server in SeleniumTestCase

game/end_to_end_tests/selenium_test_case.py

@@ -6,7 +6,26 @@
 see more information here: https://github.com/jazzband/django-pipeline/issues/593
 """
 
-from django.contrib.staticfiles.testing import LiveServerTestCase
+from django.core.servers.basehttp import WSGIServer
+from django.test.testcases import (
+    LiveServerTestCase,
+    LiveServerThread,
+    QuietWSGIRequestHandler,
+)
 from django_selenium_clean import SeleniumTestCase
 
+
+class NonThreadedLiveServerThread(LiveServerThread):
+    """
+    Replaces ThreadedWSGIServer with WSGIServer as the threaded one doesn't close the DB connections properly, thus
+    triggering random "DB table locked" errors.
+    """
+
+    def _create_server(self):
+        return WSGIServer(
+            (self.host, self.port), QuietWSGIRequestHandler, allow_reuse_address=False
+        )
+
+
 SeleniumTestCase.__bases__ = (LiveServerTestCase,)
+SeleniumTestCase.server_thread_class = NonThreadedLiveServerThread

rapid_router_test_settings.py

@@ -7,7 +7,7 @@
 
 SELENIUM_WEBDRIVERS = {
     "default": {"callable": webdriver.Chrome, "args": (), "kwargs": {}},
-    "chrome": {"callable": webdriver.Firefox, "args": (), "kwargs": {}},
+    "firefox": {"callable": webdriver.Firefox, "args": (), "kwargs": {}},
     "chrome-headless": {
         "callable": webdriver.Chrome,
         "args": (),