Unit test fixes (#10019)

* Add --keepdb option for unit test

* Reduce server launch overhead

- isGeneratingSchema was EXPENSIVE
- Running a single unit test reduced from 30s to 3s

* Option to disable check

src/backend/InvenTree/InvenTree/ready.py

@@ -47,6 +47,12 @@ def isRunningBackup():
 
 def isGeneratingSchema():
     """Return true if schema generation is being executed."""
+    if isInServerThread() or isInWorkerThread():
+        return False
+
+    if isInTestMode():
+        return False
+
     if 'schema' in sys.argv:
         return True
 

src/backend/InvenTree/InvenTree/settings.py

@@ -814,7 +814,7 @@ inventree_tags = {
 }
 
 # sentry.io integration for error reporting
-SENTRY_ENABLED = get_boolean_setting(
+SENTRY_ENABLED = not TESTING and get_boolean_setting(
     'INVENTREE_SENTRY_ENABLED', 'sentry_enabled', False
 )