test(quiz): shared_models unit tests

Author: cjnbennett

documentation/docs/backend/quiz/shared_models.md

@@ -24,3 +24,6 @@ There are three shared quiz models:
 ## Serializers
 The `shared_models` app provides serializers for each of the above models.
 
+## Testing
+Unit tests can be run from within the backend Docker container using the command `python manage.py test` (more verbosely if executing from a terminal not SSH'd into the container: `docker exec -it elucidate_server python manage.py test`). Ensure you are executing the command from the same directory as `manage.py`.
+

server/api/apps/shared_models/tests.py

@@ -0,0 +1,83 @@
+from django.test import TestCase
+from django.utils import timezone
+from ..models.quiz_models import Question, Tag, Answer
+
+import datetime
+
+
+class QuestionTestCase(TestCase):
+    def setUp(self):
+        self.creation_time = timezone.now()
+        Question.objects.create(text="Test multiple choice question",
+                                question_type=
+                                Question.QuestionType.MULTICHOICE)
+        Question.objects.create(text="Test numerical answer question",
+                                question_type=Question.QuestionType.NUMERIC)
+        Question.objects.create(text="Test short answer question",
+                                question_type=
+                                Question.QuestionType.SHORT_ANSWER)
+
+    def test_text(self):
+        mc = Question.objects.get(text="Test multiple choice question")
+        self.assertEqual(str(mc), "Test multiple choice question")
+
+        na = Question.objects.get(text="Test numerical answer question")
+        self.assertEqual(str(na), "Test numerical answer question")
+
+        sa = Question.objects.get(text="Test short answer question")
+        self.assertEqual(str(sa), "Test short answer question")
+
+    def test_question_type(self):
+        mc = Question.objects.get(text="Test multiple choice question")
+        self.assertEqual(mc.question_type, "MC")
+
+        na = Question.objects.get(text="Test numerical answer question")
+        self.assertEqual(na.question_type, "NA")
+
+        sa = Question.objects.get(text="Test short answer question")
+        self.assertEqual(sa.question_type, "SA")
+
+    def test_creator(self):
+        questions = Question.objects.all()
+        for q in questions:
+            self.assertIsNone(q.creator)
+
+    def test_date_created(self):
+        q = Question.objects.get(text="Test multiple choice question")
+        self.assertLess((q.date_created-self.creation_time).total_seconds(),
+                        0.1)
+
+
+class TagTestCase(TestCase):
+    def setUp(self):
+        q = Question.objects.create(text="This is a physics question",
+                                    question_type=
+                                    Question.QuestionType.NUMERIC)
+        t = Tag.objects.create(name="Unit 3 Physics")
+        q.tag_set.add(t)
+
+    def test(self):
+        q = Question.objects.get(text="This is a physics question")
+        t = Tag.objects.get(name="Unit 3 Physics")
+        self.assertEqual(str(t), "Unit 3 Physics")
+
+        self.assertTrue(t in q.tag_set.all())
+
+
+class AnswerTestCase(TestCase):
+    def setUp(self):
+        q = Question.objects.create(text="Question?",
+                                    question_type=
+                                    Question.QuestionType.SHORT_ANSWER)
+        Answer.objects.create(text="Answer!", question=q, is_correct=True)
+
+    def test(self):
+        q = Question.objects.get(text="Question?")
+        a = Answer.objects.get(text="Answer!")
+        self.assertEquals(str(a), "Answer!")
+        self.assertEquals(a.text, "Answer!")
+
+        self.assertTrue(a.is_correct)
+
+        self.assertEquals(a.question, q)
+

server/api/apps/shared_models/tests/__init__.py

@@ -0,0 +1,38 @@
+from django.test import TestCase
+from django.utils import timezone
+from ..models.quiz_models import Question, Answer
+from ..models.statistics_models import QuestionResponse
+
+import datetime
+
+
+class QuestionTestCase(TestCase):
+    def setUp(self):
+        self.creation_time = timezone.now()
+        q = Question.objects.create(text="Question?",
+                                    question_type=
+                                    Question.QuestionType.MULTICHOICE)
+        a = Answer.objects.create(text="Answer!",
+                                  question=q,
+                                  is_correct=True)
+        QuestionResponse.objects.create(question=q,
+                                        selected_answer=a,
+                                        is_correct=a.is_correct,
+                                        time_taken=
+                                        datetime.timedelta(seconds=5))
+
+    def test(self):
+        q = Question.objects.get(text="Question?")
+        a = Answer.objects.get(text="Answer!")
+        qr = QuestionResponse.objects.all()[0]
+
+        self.assertEquals(str(qr), str((q, a)))
+        self.assertIsNone(qr.user)
+        self.assertEquals(qr.question, q)
+        self.assertEquals(qr.selected_answer, a)
+        self.assertEquals(qr.is_correct, a.is_correct)
+        self.assertEquals(qr.is_correct, True)
+        self.assertEquals(qr.time_taken, datetime.timedelta(seconds=5))
+        self.assertLess((qr.date_created-self.creation_time).total_seconds(),
+                          0.1)
+