fix: avoid serialization of style in base_action if style is already …

…dict

backend/experiment/actions/base_action.py

@@ -13,7 +13,8 @@ def action(self):
         action_dict = self.__dict__
         action_dict['view'] = self.ID
 
-        if self.style is not None:
+        # we may have already converted the style object to a dictionary, e.g., after copying an Action object
+        if self.style is not None and type(self.style) is not dict:
             action_dict['style'] = self.style.to_dict()
 
         return action_dict

backend/experiment/rules/tests/test_speech2song.py

@@ -0,0 +1,72 @@
+from django.test import TestCase
+
+from experiment.models import Experiment
+from participant.models import Participant
+from result.models import Result
+from section.models import Playlist
+from session.models import Session
+
+from experiment.actions import Trial
+from experiment.rules.speech2song import next_repeated_representation, next_single_representation, sound, Speech2Song
+from experiment.serializers import serialize_actions
+
+
+class Speech2SongTest(TestCase):
+
+    @classmethod
+    def setUpTestData(cls):
+        section_csv = ("transforming,Sometimes behave so strangely.wav,0,2.14,s2s/TEST/Sometimes behave so strangely.wav,1,0\n"
+                       "transforming,And a joy it would be.wav,0,0.94,s2s/EN/Transforming/And a joy it would be.wav,1,1\n"
+                       "non-transforming,The limpid Walbrook.wav,0,1.20,s2s/EN/Non-Transforming/The limpid Walbrook.wav,0,1\n"
+                       "transforming,De abacaxi não tem.wav,0,1.19,s2s/BP/Transforming/De abacaxi não tem.wav,1,2\n"
+                       "non-transforming,Minha sobrinha.wav,0,0.99,s2s/BP/Non-Transforming/Minha sobrinha.wav,0,2\n"
+                       "transforming,三分钟读一页书.wav,0,1.51,s2s/MC/Transforming/三分钟读一页书.wav,1,3\n"
+                       "non-transforming,网上有地图.wav,0,1.13,s2s/MC/Non-Transforming/网上有地图.wav,0,3\n"
+                       "transforming,Hermit Thrush1.wav,0,1.19,s2s/ENV/Transforming/Hermit Thrush1.wav,1,4\n"
+                       "non-transforming,Snow walking.wav,0,1.30,s2s/ENV/Non-Transforming/Snow walking.wav,0,4\n"
+                       )
+        cls.playlist = Playlist.objects.create(name='TestSpeech2Song')
+        cls.playlist.csv = section_csv
+        cls.playlist.update_sections()
+        cls.participant = Participant.objects.create()
+        cls.experiment = Experiment.objects.create(
+            rules='SPEECH_TO_SONG', slug='s2s', rounds=42)
+        cls.session = Session.objects.create(
+            experiment=cls.experiment,
+            participant=cls.participant,
+            playlist=cls.playlist
+        )
+
+    def test_sound_method(self):
+        section = self.playlist.section_set.first()
+        view = sound(section)
+        self.assertEqual(type(view), Trial)
+
+    def test_single_presentation(self):
+        group = self.playlist.section_set.first().group
+        actions = next_single_representation(self.session, True, int(group))
+        self.assertEqual(type(actions), list)
+
+    def test_repeated_presentation(self):
+        section = self.playlist.section_set.first()
+        Result.objects.create(
+            question_key='speech2song',
+            session=self.session,
+            section=section,
+            score=2
+        )
+        actions = next_repeated_representation(self.session, True)
+        self.assertEqual(type(actions), list)
+
+    def test_next_round(self):
+        speech2song = Speech2Song()
+        actions = speech2song.next_round(self.session)
+        self.assertEqual(type(actions), list)
+
+    def test_next_round_serialization(self):
+        speech2song = Speech2Song()
+        actions = speech2song.next_round(self.session)
+        serialized = serialize_actions(actions)
+        self.assertEqual(type(serialized), list)
+        for s in serialized:
+            self.assertEqual(type(s), dict)