add idmap-load and conifig not found tests

tests/test_general.py

@@ -1,4 +1,4 @@
-from tsstats import parse_logs, main
+from tsstats import parse_logs, main, exceptions
 from os import remove
 from nose.tools import raises
 
@@ -9,6 +9,15 @@ def test_main():
     main(config_path='tests/res/config.ini')
 
 
+@raises(exceptions.ConfigNotFound)
+def test_main_config_not_found():
+    main()
+
+
+def test_main_idmap_load():
+    main(config_path='tests/res/config.ini', id_map_path='tests/res/id_map.json')
+
+
 def test_length():
     assert len(clients.clients_by_id) == 2
     assert len(clients.clients_by_uid) == 1