SW-415: gracefully exit during tests

SAS/LSMR/src/manage.py

 #!/usr/bin/env python3
 import os
 import sys
+import signal
+
+def subscribe_to_signals():
+    # raise SignalException when a signal is caught so django will exit gracefully
+    class SignalException(Exception):
+        pass
+
+    def signal_handler(_s, _f):
+        raise SignalException("signal %s received..." % (_s,))
+
+    for s in [signal.SIGHUP, signal.SIGINT]:
+        signal.signal(s, signal_handler)
+
 
 if __name__ == "__main__":
+    # do subscribe to more signals than django does for proper exits during testing
+    if os.environ.get('LSMR_RAISE_ON_SIGNALS', "False").lower() in ["true", "1", "on"]:
+        subscribe_to_signals()
+
+    # normal django startup. Specify the DJANGO_SETTINGS_MODULE, and run it.
     os.environ.setdefault("DJANGO_SETTINGS_MODULE", "lsmr.settings")
+
     try:
         from django.core.management import execute_from_command_line
     except ImportError as exc:

SAS/LSMR/test/t_lsmrapp_scheduling_functional.run

@@ -56,6 +56,7 @@ sleep 5
 echo "Started Django test database server\n\n"
 
 # Run Django test instance
+export LSMR_RAISE_ON_SIGNALS="True"
 DJANGO_TEST_PORT=8777
 lsmr -p $DJANGO_TEST_PORT -C $DJANGO_TEST_DATABASE_NAME &
 PIDS="$! $PIDS"

SAS/LSMR/test/t_lsmrapp_specification_functional.run

@@ -56,6 +56,7 @@ sleep 5
 echo "Started Django test database server\n\n"
 
 # Run Django test instance
+export LSMR_RAISE_ON_SIGNALS="True"
 DJANGO_TEST_PORT=8777
 lsmr -p $DJANGO_TEST_PORT -C $DJANGO_TEST_DATABASE_NAME &
 PIDS="$! $PIDS"