Resolve conflicts in models

stats/models.py

@@ -75,16 +75,17 @@ def set_current_time(self, ct):
             self.current_time = ct
 
     def get_percentage_complete(self):
-        if self.current_time == '00:00:00' and self.video_duration == '00:00:00':
+        ctime = self.current_time
+        vduration = self.video_duration
+        if ctime == '00:00:00' and vduration == '00:00:00':
             return 0
-        duration = str_to_time(self.video_duration)
-        watch_time = str_to_time(self.current_time)
+        duration = str_to_time(vduration)
+        watch_time = str_to_time(ctime)
         duration_seconds = time_to_seconds(duration)
         watched_seconds = time_to_seconds(watch_time)
         percentage = round((watched_seconds / duration_seconds) * 100)
         return percentage
 
-
     def get_last_access_time(self):
         lesson_logs = self.lessonlog_set
         last_access_time = self.creation_time
@@ -93,9 +94,11 @@ def get_last_access_time(self):
         return last_access_time
 
     def set_watched(self):
-        if self.current_time != '00:00:00' and self.video_duration != '00:00:00':
-            duration = str_to_time(self.video_duration)
-            watch_time = (str_to_datetime(self.current_time) + timezone.timedelta(
+        ctime = self.current_time
+        vduration = self.video_duration
+        if ctime != '00:00:00' and vduration != '00:00:00':
+            duration = str_to_time(vduration)
+            watch_time = (str_to_datetime(ctime) + timezone.timedelta(
                 seconds=120)).time()
             self.watched = watch_time >= duration
 
@@ -105,7 +108,6 @@ def get_watched(self):
             self.save()
         return self.watched
 
-
     def time_spent(self):
         if self.video_duration != '00:00:00':
             hits = self.get_log_counter()

stats/test_models.py

@@ -0,0 +1,184 @@
+from django.test import TestCase
+from django.contrib.auth.models import User
+from django.utils import timezone
+from stats.models import TrackLesson, LessonLog
+from yaksh.models import Course, Lesson, LearningModule, LearningUnit
+
+
+class TrackLessonTestCase(TestCase):
+    def setUp(self):
+        creator = User.objects.create(username='creator', password='test',
+                                      email='[email protected]')
+        self.student = User.objects.create(username='student', password='test',
+                                           email='[email protected]')
+        self.course = Course.objects.create(
+            name="Test Course", enrollment="Enroll Request", creator=creator
+        )
+        learning_module = LearningModule.objects.create(
+            name='LM', description='module', creator=creator
+        )
+        self.lesson = Lesson.objects.create(
+            name='Lesson', description='Video Lesson', creator=creator
+        )
+        learning_unit = LearningUnit.objects.create(order=1, type='lesson',
+                                                    lesson=self.lesson)
+        learning_module.learning_unit.add(learning_unit)
+        learning_module.save()
+        self.course.learning_module.add(learning_module)
+        self.course.students.add(self.student)
+        self.course.save()
+        self.tracker = TrackLesson.objects.create(user=self.student,
+                                                  course=self.course,
+                                                  lesson=self.lesson)
+        LessonLog.objects.create(track=self.tracker)
+        self.last_access_time = timezone.now()
+        LessonLog.objects.create(track=self.tracker,
+                                 last_access_time=self.last_access_time)
+
+    def tearDown(self):
+        User.objects.all().delete()
+        Course.objects.all().delete()
+        Lesson.objects.all().delete()
+        LearningUnit.objects.all().delete()
+        LearningModule.objects.all().delete()
+        LessonLog.objects.all().delete()
+        TrackLesson.objects.all().delete()
+
+    def test_track_lesson(self):
+        # Given
+        tracker = self.tracker
+
+        # Then
+        self.assertEqual(tracker.user, self.student)
+        self.assertEqual(tracker.course, self.course)
+        self.assertEqual(tracker.lesson, self.lesson)
+        self.assertEqual(tracker.current_time, '00:00:00')
+        self.assertEqual(tracker.video_duration, '00:00:00')
+        self.assertFalse(tracker.watched)
+
+    def test_log_counter(self):
+        # Given
+        tracker = self.tracker
+        expected_count = 2
+
+        # When
+        counts = tracker.get_log_counter()
+
+        # Then
+        self.assertEqual(counts, expected_count)
+
+    def test_get_current_time(self):
+        # Given
+        tracker = self.tracker
+        expected_time = 'just started'
+
+        # When
+        current_time = tracker.get_current_time()
+
+        # Then
+        self.assertEqual(current_time, expected_time)
+
+    def test_get_video_duration(self):
+        # Given
+        tracker = self.tracker
+        expected_duration = 'will be available after 25% completion'
+
+        # When
+        duration = tracker.get_video_duration()
+
+        # Then
+        self.assertEqual(duration, expected_duration)
+
+    def test_set_current_time(self):
+        # Given
+        tracker = self.tracker
+        ctime = timezone.now()
+
+        # When
+        tracker.set_current_time(ctime.strftime('%H:%M:%S'))
+        tracker.save()
+        updated_time = tracker.get_current_time()
+
+        # Then
+        self.assertEqual(updated_time, ctime.strftime('%H:%M:%S'))
+
+        # Given
+        time_now = timezone.now()
+        invalid_ctime = ctime - timezone.timedelta(seconds=100)
+
+        # When
+        tracker.set_current_time(invalid_ctime.strftime('%H:%M:%S'))
+        tracker.save()
+        old_time = tracker.get_current_time()
+
+        # Then
+        self.assertEqual(old_time, ctime.strftime('%H:%M:%S'))
+
+    def test_get_percentage_complete(self):
+        # Given
+        tracker = self.tracker
+        expected_percentage = 'less than 25%'
+
+        # When
+        percentage = tracker.get_percentage_complete()
+
+        # Then
+        self.assertEqual(percentage, expected_percentage)
+
+        # Given
+        expected_percentage = 'approx 75 %'
+
+        # When
+        tracker.set_current_time('00:03:00')
+        tracker.video_duration = '00:04:00'
+        tracker.save()
+        percentage = tracker.get_percentage_complete()
+
+        # Then
+        self.assertEqual(percentage, expected_percentage)
+
+    def test_get_last_access_time(self):
+        # Given
+        tracker = self.tracker
+        expected_time = self.last_access_time
+
+        # When
+        time = tracker.get_last_access_time()
+
+        # Then
+        self.assertEqual(time, expected_time)
+
+    def test_set_get_watched(self):
+        # Given
+        tracker = self.tracker
+
+        # When
+        tracker.set_watched()
+
+        # Then
+        self.assertFalse(tracker.get_watched())
+
+        # Given
+        tracker = self.tracker
+
+        # When
+        tracker.set_current_time('00:03:55')
+        tracker.video_duration = '00:04:00'
+        tracker.save()
+        tracker.set_watched()
+
+        # Then
+        self.assertTrue(tracker.get_watched())
+
+    def test_time_spent(self):
+        # Given
+        tracker = self.tracker
+        expected_time = '00:02:00'
+
+        # When
+        tracker.video_duration = '00:04:00'
+        tracker.save()
+        time = tracker.time_spent()
+
+        # Then
+        self.assertTrue(expected_time, time)