Split test in two methods

tests/functional/openlp_plugins/songs/test_mediaitem.py

@@ -154,7 +154,7 @@ class TestMediaItem(TestCase, TestMixin):
         # THEN: The songbook should be in the footer
         self.assertEqual(service_item.raw_footer, ['My Song', 'My copyright', 'My songbook #12'])
 
-    def match_authors_test(self):
+    def authors_match_test(self):
         """
         Test the author matching when importing a song from a service
         """
@@ -180,6 +180,22 @@ class TestMediaItem(TestCase, TestMixin):
         # THEN: They should match
         self.assertTrue(result, "Authors should match")
 
+    def authors_dont_match_test(self):
+        # GIVEN: A song and a string with authors
+        song = MagicMock()
+        song.authors = []
+        author = MagicMock()
+        author.display_name = "Hans Wurst"
+        song.authors.append(author)
+        author2 = MagicMock()
+        author2.display_name = "Max Mustermann"
+        song.authors.append(author2)
+        # There are occasions where an author appears twice in a song (with different types).
+        # We need to make sure that this case works (lp#1313538)
+        author3 = MagicMock()
+        author3.display_name = "Max Mustermann"
+        song.authors.append(author3)
+
         # WHEN: An author is missing in the string
         authors_str = "Hans Wurst, Max Mustermann"
         result = self.media_item._authors_match(song, authors_str)