Add regression test for GH-18

tests/frontends/mpd/regression_test.py

@@ -0,0 +1,41 @@
+import unittest
+
+from mopidy.backends.dummy import DummyBackend
+from mopidy.frontends.mpd import dispatcher
+from mopidy.mixers.dummy import DummyMixer
+from mopidy.models import Track
+
+class IssueGH18RegressionTest(unittest.TestCase):
+    """
+    The issue: http://github.com/jodal/mopidy/issues#issue/18
+
+    How to reproduce:
+
+        Play, random on, next, random off, next, next.
+
+        At this point it gives the same song over and over.
+    """
+
+    def setUp(self):
+        self.backend = DummyBackend(mixer_class=DummyMixer)
+        self.backend.current_playlist.append([
+            Track(uri='a'), Track(uri='b'), Track(uri='c'),
+            Track(uri='d'), Track(uri='e'), Track(uri='f')])
+        self.mpd = dispatcher.MpdDispatcher(backend=self.backend)
+
+    def test(self):
+        self.mpd.handle_request(u'play')
+        self.mpd.handle_request(u'random "1"')
+        self.mpd.handle_request(u'next')
+        self.mpd.handle_request(u'random "0"')
+        self.mpd.handle_request(u'next')
+
+        self.mpd.handle_request(u'next')
+        cp_track_1 = self.backend.playback.current_cp_track
+        self.mpd.handle_request(u'next')
+        cp_track_2 = self.backend.playback.current_cp_track
+        self.mpd.handle_request(u'next')
+        cp_track_3 = self.backend.playback.current_cp_track
+
+        self.assertNotEqual(cp_track_1, cp_track_2)
+        self.assertNotEqual(cp_track_2, cp_track_3)