Add a negative test case to check attributes are duplicated

2 files changed, 22 insertions, 10 deletions

diff --git a/yaksh/models.py b/yaksh/models.py
index ad64f2a..565bb23 100644
--- a/yaksh/models.py
+++ b/yaksh/models.py
@@ -151,21 +151,21 @@ class Course(models.Model):
 
     objects = CourseManager()
 
+    def _create_duplicate_instance(self, creator, course_name=None):
+        new_course = self
+        new_course.id = None
+        new_course.name = course_name if course_name else self.name
+        new_course.creator = creator
+        new_course.save()
+        return new_course
+
     def create_duplicate_course(self, user):
         quizzes = self.quiz_set.all()
         prerequisite_map = []
         duplicate_quiz_map = {}
-        new_course = Course.objects.create(creator=user,
-            name="Copy Of {0}".format(self.name),
-            enrollment=self.enrollment,
-            active=self.active,
-            is_trial=self.is_trial,
-            instructions=self.instructions,
-            start_enroll_time=self.start_enroll_time,
-            end_enroll_time=self.end_enroll_time
-        )
 
-        new_course.teachers.add(*self.teachers.all())
+        new_course_name = "Copy Of {0}".format(self.name)
+        new_course = self._create_duplicate_instance(user, new_course_name)
 
         for q in quizzes:
             new_quiz = q._create_duplicate_quiz(new_course)
diff --git a/yaksh/test_models.py b/yaksh/test_models.py
index 5a61c0f..c86d9a3 100644
--- a/yaksh/test_models.py
+++ b/yaksh/test_models.py
@@ -8,6 +8,7 @@ from django.utils import timezone
 import pytz
 from django.contrib.auth.models import Group
 from django.core.files import File
+from django.forms.models import model_to_dict
 import zipfile
 import os
 import shutil
@@ -961,6 +962,17 @@ class CourseTestCases(unittest.TestCase):
             self.template_course.end_enroll_time
         )
 
+        # check if attributes are same
+        cloned_course_dict = model_to_dict(cloned_course,
+            fields=[field.name for field in cloned_course._meta.fields \
+                if field.name != 'id']
+        )
+        template_course_dict = model_to_dict(self.template_course,
+            fields=[field.name for field in self.template_course._meta.fields \
+                if field.name != 'id']
+        )
+        self.assertEqual(cloned_course_dict, template_course_dict)
+
         # get duplicate quiz associated with duplicate course
         cloned_quiz = cloned_course.quiz_set.all()[0]