Пример #1
0
class AnswerPaperTestCases(unittest.TestCase):
    @classmethod
    def setUpClass(self):
        self.ip = '101.0.0.1'
        self.user = User.objects.get(id=1)
        self.profile = self.user.profile
        self.quiz = Quiz.objects.get(pk=1)
        self.question_paper = QuestionPaper(quiz=self.quiz, total_marks=3)
        self.question_paper.save()
        self.questions = Question.objects.filter(id__in=[1,2,3])
        self.start_time = timezone.now()
        self.end_time = self.start_time + timedelta(minutes=20)
        self.question1 = self.questions.get(id=1)
        self.question2 = self.questions.get(id=2)
        self.question3 = self.questions.get(id=3)

        # create answerpaper
        self.answerpaper = AnswerPaper(user=self.user,
            question_paper=self.question_paper,
            start_time=self.start_time,
            end_time=self.end_time,
            user_ip=self.ip
        )
        self.attempted_papers = AnswerPaper.objects.filter(
            question_paper=self.question_paper,
            user=self.user
        )
        already_attempted = self.attempted_papers.count()
        self.answerpaper.attempt_number = already_attempted + 1
        self.answerpaper.save()
        self.answerpaper.questions.add(*self.questions)
        self.answerpaper.questions_unanswered.add(*self.questions)
        self.answerpaper.save()
        # answers for the Answer Paper
        self.answer_right = Answer(question=Question.objects.get(id=1),
            answer="Demo answer",
            correct=True, marks=1,
            error=json.dumps([])
        )
        self.answer_wrong = Answer(question=Question.objects.get(id=2),
            answer="My answer",
            correct=False,
            marks=0,
            error=json.dumps(['error1', 'error2'])
        )
        self.answer_right.save()
        self.answer_wrong.save()
        self.answerpaper.answers.add(self.answer_right)
        self.answerpaper.answers.add(self.answer_wrong)

        self.question1.language = 'python'
        self.question1.test_case_type = 'standardtestcase'
        self.question1.save()
        self.question2.language = 'python'
        self.question2.type = 'mcq'
        self.question2.test_case_type = 'mcqtestcase'
        self.question2.save()
        self.question3.language = 'python'
        self.question3.type = 'mcc'
        self.question3.test_case_type = 'mcqtestcase'
        self.question3.save()
        self.assertion_testcase = StandardTestCase(
            question=self.question1,
            test_case='assert add(1, 3) == 4',
            type = 'standardtestcase'

        )
        self.assertion_testcase.save()
        self.mcq_based_testcase = McqTestCase(
            options = 'a',
            question=self.question2,
            correct = True,
            type = 'mcqtestcase'

        )
        self.mcq_based_testcase.save()
        self.mcc_based_testcase = McqTestCase(
            question=self.question3,
            options = 'a',
            correct = True,
            type = 'mcqtestcase'
        )
        self.mcc_based_testcase.save()

    def test_validate_and_regrade_mcc_question(self):
        # Given
        mcc_answer = ['a']
        self.answer = Answer(question=self.question3,
            answer=mcc_answer,
        )
        self.answer.save()
        self.answerpaper.answers.add(self.answer)

        # When
        json_data = None
        correct, result = self.answerpaper.validate_answer(mcc_answer,
                self.question3, json_data)

        # Then
        self.assertTrue(correct)
        self.assertTrue(result['success'])
        self.assertEqual(result['error'], ['Correct answer'])
        self.answer.correct = True
        self.answer.marks = 1

        # Given
        self.answer.correct = True
        self.answer.marks = 1

        self.answer.answer = ['a', 'b']
        self.answer.save()

        # When
        details = self.answerpaper.regrade(self.question3.id)

        # Then
        self.answer = self.answerpaper.answers.filter(question=self.question3).last()
        self.assertTrue(details[0])
        self.assertEqual(self.answer.marks, 0)
        self.assertFalse(self.answer.correct)

    def test_validate_and_regrade_mcq_question(self):
        # Given
        mcq_answer = 'a'
        self.answer = Answer(question=self.question2,
            answer=mcq_answer,
        )
        self.answer.save()
        self.answerpaper.answers.add(self.answer)

        # When
        json_data = None
        correct, result = self.answerpaper.validate_answer(mcq_answer,
                self.question2, json_data)

        # Then
        self.assertTrue(correct)
        self.assertTrue(result['success'])
        self.answer.correct = True
        self.answer.marks = 1

        # Given
        self.answer.correct = True
        self.answer.marks = 1

        self.answer.answer = 'b'
        self.answer.save()

        # When
        details = self.answerpaper.regrade(self.question2.id)

        # Then
        self.answer = self.answerpaper.answers.filter(question=self.question2).last()
        self.assertTrue(details[0])
        self.assertEqual(self.answer.marks, 0)
        self.assertFalse(self.answer.correct)


    def test_answerpaper(self):
        """ Test Answer Paper"""
        self.assertEqual(self.answerpaper.user.username, 'demo_user')
        self.assertEqual(self.answerpaper.user_ip, self.ip)
        questions = self.answerpaper.get_questions()
        num_questions = len(questions)
        self.assertSequenceEqual(list(questions), list(self.questions))
        self.assertEqual(num_questions, 3)
        self.assertEqual(self.answerpaper.question_paper, self.question_paper)
        self.assertEqual(self.answerpaper.start_time, self.start_time)
        self.assertEqual(self.answerpaper.status, 'inprogress')

    def test_questions(self):
        # Test questions_left() method of Answer Paper
        self.assertEqual(self.answerpaper.questions_left(), 3)
        # Test current_question() method of Answer Paper
        current_question = self.answerpaper.current_question()
        self.assertEqual(current_question.id, 1)
        # Test completed_question() method of Answer Paper
        question = self.answerpaper.completed_question(1)
        self.assertEqual(self.answerpaper.questions_left(), 2)

        # Test next_question() method of Answer Paper
        current_question = self.answerpaper.current_question()
        self.assertEqual(current_question.id, 2)

        # When
        next_question_id = self.answerpaper.next_question(current_question.id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 3)

        # Given, here question is already answered
        current_question_id = 1

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 2)

        # Given, wrong question id
        current_question_id = 12

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 2)

        # Given, last question in the list
        current_question_id = 3

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 2)

        # Test get_questions_answered() method
        # When
        questions_answered = self.answerpaper.get_questions_answered()

        # Then
        self.assertEqual(questions_answered.count(), 1)
        self.assertSequenceEqual(questions_answered, [self.questions[0]])

        # When
        questions_unanswered = self.answerpaper.get_questions_unanswered()

        # Then
        self.assertEqual(questions_unanswered.count(), 2)
        self.assertSequenceEqual(questions_unanswered,
                                 [self.questions[1], self.questions[2]])

        # Test completed_question and next_question
        # When all questions are answered
        current_question = self.answerpaper.completed_question(2)

        # Then
        self.assertEqual(self.answerpaper.questions_left(), 1)
        self.assertEqual(current_question.id, 3)

        # When
        current_question = self.answerpaper.completed_question(3)

        # Then
        self.assertEqual(self.answerpaper.questions_left(), 0)
        self.assertTrue(current_question is None)

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is None)

    def test_update_marks(self):
        """ Test update_marks method of AnswerPaper"""
        self.answerpaper.update_marks('inprogress')
        self.assertEqual(self.answerpaper.status, 'inprogress')
        self.assertTrue(self.answerpaper.is_attempt_inprogress())
        self.answerpaper.update_marks()
        self.assertEqual(self.answerpaper.status, 'completed')
        self.assertEqual(self.answerpaper.marks_obtained, 1.0)
        self.assertEqual(self.answerpaper.percent, 33.33)
        self.assertTrue(self.answerpaper.passed)
        self.assertFalse(self.answerpaper.is_attempt_inprogress())

    def test_set_end_time(self):
        current_time = timezone.now()
        self.answerpaper.set_end_time(current_time)
        self.assertEqual(self.answerpaper.end_time,current_time)

    def test_get_question_answer(self):
        """ Test get_question_answer() method of Answer Paper"""
        answered = self.answerpaper.get_question_answers()
        first_answer = list(answered.values())[0][0]
        first_answer_obj = first_answer['answer']
        self.assertEqual(first_answer_obj.answer, 'Demo answer')
        self.assertTrue(first_answer_obj.correct)
        self.assertEqual(len(answered), 2)

    def test_is_answer_correct(self):
        self.assertTrue(self.answerpaper.is_answer_correct(self.questions[0]))
        self.assertFalse(self.answerpaper.is_answer_correct(self.questions[1]))

    def test_get_previous_answers(self):
        answers = self.answerpaper.get_previous_answers(self.questions[0])
        self.assertEqual(answers.count(), 1)
        self.assertTrue(answers[0], self.answer_right)
        answers = self.answerpaper.get_previous_answers(self.questions[1])
        self.assertEqual(answers.count(), 1)
        self.assertTrue(answers[0], self.answer_wrong)

    def test_set_marks (self):
        self.answer_wrong.set_marks(0.5)
        self.assertEqual(self.answer_wrong.marks, 0.5)
        self.answer_wrong.set_marks(10.0)
        self.assertEqual(self.answer_wrong.marks,1.0)
Пример #2
0
class AnswerPaperTestCases(unittest.TestCase):
    @classmethod
    def setUpClass(self):
        self.ip = '101.0.0.1'
        self.user = User.objects.get(id=1)
        self.profile = self.user.profile
        self.quiz = Quiz.objects.get(pk=1)
        self.question_paper = QuestionPaper(quiz=self.quiz, total_marks=3)
        self.question_paper.save()
        self.questions = Question.objects.filter(id__in=[1, 2, 3])
        self.start_time = timezone.now()
        self.end_time = self.start_time + timedelta(minutes=20)

        # create answerpaper
        self.answerpaper = AnswerPaper(user=self.user,
                                       question_paper=self.question_paper,
                                       start_time=self.start_time,
                                       end_time=self.end_time,
                                       user_ip=self.ip)
        self.attempted_papers = AnswerPaper.objects.filter(
            question_paper=self.question_paper, user=self.user)
        already_attempted = self.attempted_papers.count()
        self.answerpaper.attempt_number = already_attempted + 1
        self.answerpaper.save()
        self.answerpaper.questions.add(*self.questions)
        self.answerpaper.questions_unanswered.add(*self.questions)
        self.answerpaper.save()
        # answers for the Answer Paper
        self.answer_right = Answer(question=Question.objects.get(id=1),
                                   answer="Demo answer",
                                   correct=True,
                                   marks=1)
        self.answer_wrong = Answer(question=Question.objects.get(id=2),
                                   answer="My answer",
                                   correct=False,
                                   marks=0)
        self.answer_right.save()
        self.answer_wrong.save()
        self.answerpaper.answers.add(self.answer_right)
        self.answerpaper.answers.add(self.answer_wrong)

    def test_answerpaper(self):
        """ Test Answer Paper"""
        self.assertEqual(self.answerpaper.user.username, 'demo_user')
        self.assertEqual(self.answerpaper.user_ip, self.ip)
        questions = self.answerpaper.get_questions()
        num_questions = len(questions)
        self.assertSequenceEqual(list(questions), list(self.questions))
        self.assertEqual(num_questions, 3)
        self.assertEqual(self.answerpaper.question_paper, self.question_paper)
        self.assertEqual(self.answerpaper.start_time, self.start_time)
        self.assertEqual(self.answerpaper.status, 'inprogress')

    def test_questions(self):
        # Test questions_left() method of Answer Paper
        self.assertEqual(self.answerpaper.questions_left(), 3)
        # Test current_question() method of Answer Paper
        current_question = self.answerpaper.current_question()
        self.assertEqual(current_question.id, 1)
        # Test completed_question() method of Answer Paper
        question = self.answerpaper.completed_question(1)
        self.assertEqual(self.answerpaper.questions_left(), 2)

        # Test next_question() method of Answer Paper
        current_question = self.answerpaper.current_question()
        self.assertEqual(current_question.id, 2)

        # When
        next_question_id = self.answerpaper.next_question(current_question.id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 3)

        # Given, here question is already answered
        current_question_id = 1

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 2)

        # Given, wrong question id
        current_question_id = 12

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 2)

        # Given, last question in the list
        current_question_id = 3

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 2)

        # Test get_questions_answered() method
        # When
        questions_answered = self.answerpaper.get_questions_answered()

        # Then
        self.assertEqual(questions_answered.count(), 1)
        self.assertSequenceEqual(questions_answered, [self.questions[0]])

        # When
        questions_unanswered = self.answerpaper.get_questions_unanswered()

        # Then
        self.assertEqual(questions_unanswered.count(), 2)
        self.assertSequenceEqual(questions_unanswered,
                                 [self.questions[1], self.questions[2]])

        # Test completed_question and next_question
        # When all questions are answered
        current_question = self.answerpaper.completed_question(2)

        # Then
        self.assertEqual(self.answerpaper.questions_left(), 1)
        self.assertEqual(current_question.id, 3)

        # When
        current_question = self.answerpaper.completed_question(3)

        # Then
        self.assertEqual(self.answerpaper.questions_left(), 0)
        self.assertTrue(current_question is None)

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is None)

    def test_update_marks(self):
        """ Test update_marks method of AnswerPaper"""
        self.answerpaper.update_marks('inprogress')
        self.assertEqual(self.answerpaper.status, 'inprogress')
        self.assertTrue(self.answerpaper.is_attempt_inprogress())
        self.answerpaper.update_marks()
        self.assertEqual(self.answerpaper.status, 'completed')
        self.assertEqual(self.answerpaper.marks_obtained, 1.0)
        self.assertEqual(self.answerpaper.percent, 33.33)
        self.assertTrue(self.answerpaper.passed)
        self.assertFalse(self.answerpaper.is_attempt_inprogress())

    def test_set_end_time(self):
        current_time = timezone.now()
        self.answerpaper.set_end_time(current_time)
        self.assertEqual(self.answerpaper.end_time, current_time)

    def test_get_question_answer(self):
        """ Test get_question_answer() method of Answer Paper"""
        answered = self.answerpaper.get_question_answers()
        first_answer = answered.values()[0][0]
        self.assertEqual(first_answer.answer, 'Demo answer')
        self.assertTrue(first_answer.correct)
        self.assertEqual(len(answered), 2)

    def test_is_answer_correct(self):
        self.assertTrue(self.answerpaper.is_answer_correct(self.questions[0]))
        self.assertFalse(self.answerpaper.is_answer_correct(self.questions[1]))

    def test_get_previous_answers(self):
        answers = self.answerpaper.get_previous_answers(self.questions[0])
        self.assertEqual(answers.count(), 1)
        self.assertTrue(answers[0], self.answer_right)
        answers = self.answerpaper.get_previous_answers(self.questions[1])
        self.assertEqual(answers.count(), 1)
        self.assertTrue(answers[0], self.answer_wrong)

    def test_set_marks(self):
        self.answer_wrong.set_marks(0.5)
        self.assertEqual(self.answer_wrong.marks, 0.5)
        self.answer_wrong.set_marks(10.0)
        self.assertEqual(self.answer_wrong.marks, 1.0)
Пример #3
0
class AnswerPaperTestCases(unittest.TestCase):
    @classmethod
    def setUpClass(self):
        self.ip = '101.0.0.1'
        self.user = User.objects.get(id=1)
        self.profile = self.user.profile
        self.quiz = Quiz.objects.get(pk=1)
        self.question_paper = QuestionPaper(quiz=self.quiz, total_marks=3)
        self.question_paper.save()
        self.questions = Question.objects.filter(id__in=[1,2,3])
        self.start_time = datetime.now()
        self.end_time = self.start_time + timedelta(minutes=20)

        # create answerpaper
        self.answerpaper = AnswerPaper(user=self.user,
            question_paper=self.question_paper,
            start_time=self.start_time,
            end_time=self.end_time,
            user_ip=self.ip
        )
        self.attempted_papers = AnswerPaper.objects.filter(
            question_paper=self.question_paper,
            user=self.user
        )
        already_attempted = self.attempted_papers.count()
        self.answerpaper.attempt_number = already_attempted + 1
        self.answerpaper.save()
        self.answerpaper.questions.add(*self.questions)
        self.answerpaper.questions_unanswered.add(*self.questions)
        self.answerpaper.save()
        # answers for the Answer Paper
        self.answer_right = Answer(question=Question.objects.get(id=1),
            answer="Demo answer", 
            correct=True, marks=1
        )
        self.answer_wrong = Answer(question=Question.objects.get(id=2),
            answer="My answer",
            correct=False,
            marks=0
        )
        self.answer_right.save()
        self.answer_wrong.save()
        self.answerpaper.answers.add(self.answer_right)
        self.answerpaper.answers.add(self.answer_wrong)

    def test_answerpaper(self):
        """ Test Answer Paper"""
        self.assertEqual(self.answerpaper.user.username, 'demo_user')
        self.assertEqual(self.answerpaper.user_ip, self.ip)
        questions = self.answerpaper.get_questions()
        num_questions = len(questions)
        self.assertSequenceEqual(list(questions), list(self.questions))
        self.assertEqual(num_questions, 3)
        self.assertEqual(self.answerpaper.question_paper, self.question_paper)
        self.assertEqual(self.answerpaper.start_time, self.start_time)
        self.assertEqual(self.answerpaper.status, 'inprogress')

    def test_questions(self):
        # Test questions_left() method of Answer Paper
        self.assertEqual(self.answerpaper.questions_left(), 3)
        # Test current_question() method of Answer Paper
        current_question = self.answerpaper.current_question()
        self.assertEqual(current_question.id, 1)
        # Test completed_question() method of Answer Paper
        question = self.answerpaper.completed_question(1)
        self.assertEqual(self.answerpaper.questions_left(), 2)
        # Test skip() method of Answer Paper
        current_question = self.answerpaper.current_question()
        self.assertEqual(current_question.id, 2)
        next_question_id = self.answerpaper.skip(current_question.id)
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 3)
        questions_answered = self.answerpaper.get_questions_answered()
        self.assertEqual(questions_answered.count(), 1)
        self.assertSequenceEqual(questions_answered, [self.questions[0]])
        questions_unanswered = self.answerpaper.get_questions_unanswered()
        self.assertEqual(questions_unanswered.count(), 2)
        self.assertSequenceEqual(questions_unanswered,
                                 [self.questions[1], self.questions[2]])

    def test_update_marks(self):
        """ Test update_marks method of AnswerPaper"""
        self.answerpaper.update_marks('inprogress')
        self.assertEqual(self.answerpaper.status, 'inprogress')
        self.assertTrue(self.answerpaper.is_attempt_inprogress())
        self.answerpaper.update_marks()
        self.assertEqual(self.answerpaper.status, 'completed')
        self.assertEqual(self.answerpaper.marks_obtained, 1.0)
        self.assertEqual(self.answerpaper.percent, 33.33)
        self.assertTrue(self.answerpaper.passed)
        self.assertFalse(self.answerpaper.is_attempt_inprogress())

    def test_set_end_time(self):
        current_time = datetime.now()
        self.answerpaper.set_end_time(current_time)
        self.assertEqual(self.answerpaper.end_time,current_time)

    def test_get_question_answer(self):
        """ Test get_question_answer() method of Answer Paper"""
        answered = self.answerpaper.get_question_answers()
        first_answer = answered.values()[0][0]
        self.assertEqual(first_answer.answer, 'Demo answer')
        self.assertTrue(first_answer.correct)
        self.assertEqual(len(answered), 2)

    def test_is_answer_correct(self):
        self.assertTrue(self.answerpaper.is_answer_correct(self.questions[0]))
        self.assertFalse(self.answerpaper.is_answer_correct(self.questions[1]))

    def test_get_previous_answers(self):
        answers = self.answerpaper.get_previous_answers(self.questions[0])
        self.assertEqual(answers.count(), 1)
        self.assertTrue(answers[0], self.answer_right)
        answers = self.answerpaper.get_previous_answers(self.questions[1])
        self.assertEqual(answers.count(), 1)
        self.assertTrue(answers[0], self.answer_wrong)

    def test_set_marks (self):
        self.answer_wrong.set_marks(0.5)
        self.assertEqual(self.answer_wrong.marks, 0.5)
        self.answer_wrong.set_marks(10.0)
        self.assertEqual(self.answer_wrong.marks,1.0)
Пример #4
0
class AnswerPaperTestCases(unittest.TestCase):
    @classmethod
    def setUpClass(self):
        self.ip = '101.0.0.1'
        self.user = User.objects.get(id=1)
        self.profile = self.user.profile
        self.quiz = Quiz.objects.get(pk=1)
        self.question_paper = QuestionPaper(quiz=self.quiz, total_marks=3)
        self.question_paper.save()
        self.questions = Question.objects.filter(id__in=[1, 2, 3])
        self.start_time = timezone.now()
        self.end_time = self.start_time + timedelta(minutes=20)
        self.question1 = self.questions.get(id=1)
        self.question2 = self.questions.get(id=2)
        self.question3 = self.questions.get(id=3)

        # create answerpaper
        self.answerpaper = AnswerPaper(user=self.user,
                                       question_paper=self.question_paper,
                                       start_time=self.start_time,
                                       end_time=self.end_time,
                                       user_ip=self.ip)
        self.attempted_papers = AnswerPaper.objects.filter(
            question_paper=self.question_paper, user=self.user)
        already_attempted = self.attempted_papers.count()
        self.answerpaper.attempt_number = already_attempted + 1
        self.answerpaper.save()
        self.answerpaper.questions.add(*self.questions)
        self.answerpaper.questions_unanswered.add(*self.questions)
        self.answerpaper.save()
        # answers for the Answer Paper
        self.answer_right = Answer(question=Question.objects.get(id=1),
                                   answer="Demo answer",
                                   correct=True,
                                   marks=1,
                                   error=json.dumps([]))
        self.answer_wrong = Answer(question=Question.objects.get(id=2),
                                   answer="My answer",
                                   correct=False,
                                   marks=0,
                                   error=json.dumps(['error1', 'error2']))
        self.answer_right.save()
        self.answer_wrong.save()
        self.answerpaper.answers.add(self.answer_right)
        self.answerpaper.answers.add(self.answer_wrong)

        self.question1.language = 'python'
        self.question1.test_case_type = 'standardtestcase'
        self.question1.save()
        self.question2.language = 'python'
        self.question2.type = 'mcq'
        self.question2.test_case_type = 'mcqtestcase'
        self.question2.save()
        self.question3.language = 'python'
        self.question3.type = 'mcc'
        self.question3.test_case_type = 'mcqtestcase'
        self.question3.save()
        self.assertion_testcase = StandardTestCase(
            question=self.question1,
            test_case='assert add(1, 3) == 4',
            type='standardtestcase')
        self.assertion_testcase.save()
        self.mcq_based_testcase = McqTestCase(options='a',
                                              question=self.question2,
                                              correct=True,
                                              type='mcqtestcase')
        self.mcq_based_testcase.save()
        self.mcc_based_testcase = McqTestCase(question=self.question3,
                                              options='a',
                                              correct=True,
                                              type='mcqtestcase')
        self.mcc_based_testcase.save()

    def test_validate_and_regrade_mcc_correct_answer(self):
        # Given
        mcc_answer = ['a']
        self.answer = Answer(
            question=self.question3,
            answer=mcc_answer,
        )
        self.answer.save()
        self.answerpaper.answers.add(self.answer)

        # When
        json_data = None
        result = self.answerpaper.validate_answer(mcc_answer, self.question3,
                                                  json_data)

        # Then
        self.assertTrue(result['success'])
        self.assertEqual(result['error'], ['Correct answer'])
        self.answer.correct = True
        self.answer.marks = 1

        # Given
        self.answer.correct = True
        self.answer.marks = 1

        self.answer.answer = ['a', 'b']
        self.answer.save()

        # When
        details = self.answerpaper.regrade(self.question3.id)

        # Then
        self.answer = self.answerpaper.answers.filter(
            question=self.question3).last()
        self.assertTrue(details[0])
        self.assertEqual(self.answer.marks, 0)
        self.assertFalse(self.answer.correct)

    def test_validate_and_regrade_mcq_correct_answer(self):
        # Given
        mcq_answer = 'a'
        self.answer = Answer(
            question=self.question2,
            answer=mcq_answer,
        )
        self.answer.save()
        self.answerpaper.answers.add(self.answer)

        # When
        json_data = None
        result = self.answerpaper.validate_answer(mcq_answer, self.question2,
                                                  json_data)

        # Then
        self.assertTrue(result['success'])
        self.answer.correct = True
        self.answer.marks = 1

        # Given
        self.answer.correct = True
        self.answer.marks = 1

        self.answer.answer = 'b'
        self.answer.save()

        # When
        details = self.answerpaper.regrade(self.question2.id)

        # Then
        self.answer = self.answerpaper.answers.filter(
            question=self.question2).last()
        self.assertTrue(details[0])
        self.assertEqual(self.answer.marks, 0)
        self.assertFalse(self.answer.correct)

    def test_mcq_incorrect_answer(self):
        # Given
        mcq_answer = 'b'
        self.answer = Answer(
            question=self.question2,
            answer=mcq_answer,
        )
        self.answer.save()
        self.answerpaper.answers.add(self.answer)

        # When
        json_data = None
        result = self.answerpaper.validate_answer(mcq_answer, self.question2,
                                                  json_data)

        # Then
        self.assertFalse(result['success'])

    def test_mcc_incorrect_answer(self):
        # Given
        mcc_answer = ['b']
        self.answer = Answer(
            question=self.question3,
            answer=mcc_answer,
        )
        self.answer.save()
        self.answerpaper.answers.add(self.answer)

        # When
        json_data = None
        result = self.answerpaper.validate_answer(mcc_answer, self.question3,
                                                  json_data)

        # Then
        self.assertFalse(result['success'])

    def test_answerpaper(self):
        """ Test Answer Paper"""
        self.assertEqual(self.answerpaper.user.username, 'demo_user')
        self.assertEqual(self.answerpaper.user_ip, self.ip)
        questions = self.answerpaper.get_questions()
        num_questions = len(questions)
        self.assertSequenceEqual(list(questions), list(self.questions))
        self.assertEqual(num_questions, 3)
        self.assertEqual(self.answerpaper.question_paper, self.question_paper)
        self.assertEqual(self.answerpaper.start_time, self.start_time)
        self.assertEqual(self.answerpaper.status, 'inprogress')

    def test_questions(self):
        # Test questions_left() method of Answer Paper
        self.assertEqual(self.answerpaper.questions_left(), 3)
        # Test current_question() method of Answer Paper
        current_question = self.answerpaper.current_question()
        self.assertEqual(current_question.id, 1)
        # Test completed_question() method of Answer Paper
        question = self.answerpaper.add_completed_question(1)
        self.assertEqual(self.answerpaper.questions_left(), 2)

        # Test next_question() method of Answer Paper
        current_question = self.answerpaper.current_question()
        self.assertEqual(current_question.id, 2)

        # When
        next_question_id = self.answerpaper.next_question(current_question.id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 3)

        # Given, here question is already answered
        current_question_id = 1

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 2)

        # Given, wrong question id
        current_question_id = 12

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 1)

        # Given, last question in the list
        current_question_id = 3

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is not None)
        self.assertEqual(next_question_id.id, 1)

        # Test get_questions_answered() method
        # When
        questions_answered = self.answerpaper.get_questions_answered()

        # Then
        self.assertEqual(questions_answered.count(), 1)
        self.assertSequenceEqual(questions_answered, [self.questions[0]])

        # When
        questions_unanswered = self.answerpaper.get_questions_unanswered()

        # Then
        self.assertEqual(questions_unanswered.count(), 2)
        self.assertSequenceEqual(questions_unanswered,
                                 [self.questions[1], self.questions[2]])

        # Test completed_question and next_question
        # When all questions are answered
        current_question = self.answerpaper.add_completed_question(2)

        # Then
        self.assertEqual(self.answerpaper.questions_left(), 1)
        self.assertEqual(current_question.id, 3)

        # When
        current_question = self.answerpaper.add_completed_question(3)

        # Then
        self.assertEqual(self.answerpaper.questions_left(), 0)
        self.assertTrue(current_question is None)

        # When
        next_question_id = self.answerpaper.next_question(current_question_id)

        # Then
        self.assertTrue(next_question_id is None)

    def test_update_marks(self):
        """ Test update_marks method of AnswerPaper"""
        self.answerpaper.update_marks('inprogress')
        self.assertEqual(self.answerpaper.status, 'inprogress')
        self.assertTrue(self.answerpaper.is_attempt_inprogress())
        self.answerpaper.update_marks()
        self.assertEqual(self.answerpaper.status, 'completed')
        self.assertEqual(self.answerpaper.marks_obtained, 1.0)
        self.assertEqual(self.answerpaper.percent, 33.33)
        self.assertTrue(self.answerpaper.passed)
        self.assertFalse(self.answerpaper.is_attempt_inprogress())

    def test_set_end_time(self):
        current_time = timezone.now()
        self.answerpaper.set_end_time(current_time)
        self.assertEqual(self.answerpaper.end_time, current_time)

    def test_get_question_answer(self):
        """ Test get_question_answer() method of Answer Paper"""
        answered = self.answerpaper.get_question_answers()
        first_answer = list(answered.values())[0][0]
        first_answer_obj = first_answer['answer']
        self.assertEqual(first_answer_obj.answer, 'Demo answer')
        self.assertTrue(first_answer_obj.correct)
        self.assertEqual(len(answered), 2)

    def test_is_answer_correct(self):
        self.assertTrue(self.answerpaper.is_answer_correct(self.questions[0]))
        self.assertFalse(self.answerpaper.is_answer_correct(self.questions[1]))

    def test_get_previous_answers(self):
        answers = self.answerpaper.get_previous_answers(self.questions[0])
        self.assertEqual(answers.count(), 1)
        self.assertTrue(answers[0], self.answer_right)
        answers = self.answerpaper.get_previous_answers(self.questions[1])
        self.assertEqual(answers.count(), 1)
        self.assertTrue(answers[0], self.answer_wrong)

    def test_set_marks(self):
        self.answer_wrong.set_marks(0.5)
        self.assertEqual(self.answer_wrong.marks, 0.5)
        self.answer_wrong.set_marks(10.0)
        self.assertEqual(self.answer_wrong.marks, 1.0)