Sc204/alg in output

The algorithm used is now mentioned in the output file names. Also, date and time are in there. Did not make a different branch for that, because that was a very small job.

umbra/tests/test_controller.py

@@ -2,6 +2,7 @@ import unittest
 import unittest.mock as mock
 from ..controller import Controller
 import pyfakefs
+from time import localtime, strftime
 
 
 class ControllerTest(pyfakefs.fake_filesystem_unittest.TestCase):
@@ -109,8 +110,13 @@ class ControllerTest(pyfakefs.fake_filesystem_unittest.TestCase):
         controller._filewriter = fw
         controller._save_results()
         view.ask_save_location.assert_called()
-        fw.write_frame.assert_has_calls([mock.call("baz/bar/yit", "bar", "mistakes.csv"),
-                                         mock.call("baz/bar/yit", "foo", "delay.csv")])
+        algorithm = model.last_used_algorithm()
+        time = strftime("%d%m%y_%H%M%S", localtime())
+        title1 = "mistakes_{}_{}.csv".format(algorithm, time)
+        time = strftime("%d%m%y_%H%M%S", localtime())
+        title2 = "delay_{}_{}.csv".format(algorithm, time)
+        fw.write_frame.assert_has_calls([mock.call("baz/bar/yit", "bar", title1),
+                                         mock.call("baz/bar/yit", "foo", title2)])
         view.update_message.assert_called_with("saved")
 
     def test_select_folder(self):