test: extend domain tests for remove and duration

tests/test_domain.py

@@ -102,9 +102,9 @@ class TestDomain(unittest.TestCase):
         self.assertIsNotNone(ts.playlist.timeslot)
         self.assertIsNotNone(ts.playlist.schedule)
         self.assertIsNotNone(ts.playlist.show)
-        self.assertEqual(1675463003, ts.playlist.timeslot.get_start())
-        self.assertEqual(1675466009, ts.playlist.timeslot.get_end())
-        self.assertEqual(1675466009 - 1675466003, ts.playlist.timeslot.get_duration())
+        self.assertEqual(1675463003, ts.get_start())
+        self.assertEqual(1675466009, ts.get_end())
+        self.assertEqual(1675466009 - 1675463003, ts.get_duration())
         self.assertEqual(PlaylistType.TIMESLOT, ts.playlist.timeslot.get_type())
         self.assertEqual(PlaylistType.SCHEDULE, ts.playlist.schedule.get_type())
         self.assertEqual(PlaylistType.SHOW, ts.playlist.show.get_type())
@@ -128,6 +128,32 @@ class TestDomain(unittest.TestCase):
         pl.add(e3)
         self.assertEqual(3, len(pl.get_items()))
 
+    def test_playlist_remove_item(self):
+        print(self._testMethodName)
+
+        pl = Playlist(1, "some description")
+        e1 = PlaylistItem("file1.flac", 2, 100, PlaylistItem.Metadata("a1", "b1", "c1"))
+        e2 = PlaylistItem("file2.flac", 3, 100, PlaylistItem.Metadata("a2", "b2", "c2"))
+        e3 = PlaylistItem("file3.flac", 5, 100, PlaylistItem.Metadata("a3", "b3", "c3"))
+
+        pl.add(e1)
+        pl.add(e2)
+        pl.add(e3)
+        self.assertEqual(3, len(pl.get_items()))
+
+        e2.remove()
+        self.assertEqual(2, len(pl.get_items()))
+        self.assertEqual(e1, e3.prev)
+        self.assertEqual(e3, e1.next)
+        self.assertIsNone(e2.playlist)
+
+        e3.remove()
+        self.assertEqual(1, len(pl.get_items()))
+        self.assertIsNone(e1.next)
+        self.assertIsNone(e1.prev)
+        self.assertIsNone(e3.next)
+        self.assertIsNone(e3.prev)
+
     def test_playlist_duration(self):
         print(self._testMethodName)