Try to fix daemon not launching on Linux

Author: claudiodsf

seiscat/daemon/services.py

@@ -156,6 +156,7 @@ def _launchd_plist_path(system=False):
 Description=seiscat daemon timer
 
 [Timer]
+OnActiveSec={interval}
 OnUnitActiveSec={interval}
 Unit={service_name}
 Persistent=true

tests/test_daemon_services.py

@@ -136,6 +136,10 @@ def test_after_network(self):
 class TestRenderSystemdTimer(unittest.TestCase):
     """Test that the systemd timer unit renders correctly."""
 
+    def test_on_active_sec_15_minutes(self):
+        timer = render_systemd_timer(_make_config())
+        self.assertIn('OnActiveSec=900s', timer)
+
     def test_on_unit_active_sec_15_minutes(self):
         timer = render_systemd_timer(_make_config())
         # 15 minutes = 900s