add function to determine if all players are ready for the next round; fix tests

stories/writingtogether/models.py

@@ -20,6 +20,12 @@ class StoryRound(models.Model):
         # TODO: implement, for each story get unfinished part and check user
         pass
 
+    def next_round_ready(self) -> bool:
+        for story in self.story_set.all():
+            if not story.storypart_set.get(turn_number=self.current_turn).finished:
+                return False
+        return True
+
 
 #class Participant(models.Model):
 #    user = models.ForeignKey(User, on_delete=CASCADE)

stories/writingtogether/tests/test_model_functions.py

@@ -48,7 +48,7 @@ class TestModelFunctions(TestCase):
                 user=user,
                 previous_part=previous_part,
                 part_of=story,
-                round_number=i
+                turn_number=i
             )
             parts.append(new_part)
             previous_part = new_part
@@ -87,3 +87,33 @@ class TestModelFunctions(TestCase):
         result = self.story1.get_first_unfinished_part()
 
         self.assertEqual(result, None)
+
+    def test_next_round_ready__game_start(self):
+        self.create_users_and_story_round_with_stories_and_parts()
+        self.assertFalse(self.story_round.next_round_ready())
+
+    def test_next_round_ready__half_done(self):
+        self.create_users_and_story_round_with_stories_and_parts()
+        self.parts1[0].text = 'some text'
+        self.parts1[0].save()
+        self.assertFalse(self.story_round.next_round_ready())
+
+    def test_next_round_ready__first_round_done(self):
+        self.create_users_and_story_round_with_stories_and_parts()
+
+        self.parts1[0].text = 'some text'
+        self.parts1[0].save()
+        self.parts2[0].text = 'some text'
+        self.parts2[0].save()
+        self.assertTrue(self.story_round.next_round_ready())
+
+    def test_next_round_ready__second_round_done(self):
+        self.create_users_and_story_round_with_stories_and_parts()
+        self.story_round.current_turn = 1
+        self.story_round.save()
+
+        self.parts1[1].text = 'some text'
+        self.parts1[1].save()
+        self.parts2[1].text = 'some text'
+        self.parts2[1].save()
+        self.assertTrue(self.story_round.next_round_ready())