class CoursesDuplicateComplexAPITests(ComPAIRAPITestCase): def setUp(self): super(CoursesDuplicateComplexAPITests, self).setUp() self.data = ComparisonTestData() self.course = self.data.get_course() # add start_date self.course.start_date = datetime.datetime.utcnow() self.course.end_date = datetime.datetime.utcnow() + datetime.timedelta( days=90) index = 0 for assignment in self.course.assignments: assignment.answer_start = self.course.start_date + datetime.timedelta( days=index) assignment.answer_end = self.course.start_date + datetime.timedelta( days=index + 7) if assignment.compare_start != None: assignment.compare_start = self.course.start_date + datetime.timedelta( days=index + 14) if assignment.compare_end != None: assignment.compare_end = self.course.start_date + datetime.timedelta( days=index + 21) index += 1 db.session.commit() self.url = '/api/courses/' + self.course.uuid + '/duplicate' self.date_delta = datetime.timedelta(days=180) self.expected = { 'name': 'duplicate course', 'year': 2015, 'term': 'Winter', 'sandbox': False, 'start_date': (self.course.start_date + self.date_delta).isoformat() + 'Z', 'end_date': (self.course.end_date + self.date_delta).isoformat() + 'Z', 'assignments': [] } for assignment in self.course.assignments: if not assignment.active: continue assignment_data = { 'id': assignment.uuid, 'name': assignment.name, 'answer_start': (assignment.answer_start + self.date_delta).isoformat() + 'Z', 'answer_end': (assignment.answer_end + self.date_delta).isoformat() + 'Z' } if assignment.compare_start != None: assignment_data['compare_start'] = ( assignment.compare_start + self.date_delta).isoformat() + 'Z' if assignment.compare_end != None: assignment_data['compare_end'] = ( assignment.compare_end + self.date_delta).isoformat() + 'Z' self.expected['assignments'].append(assignment_data) now = datetime.datetime.utcnow() self.valid_course = self.data.create_course() self.data.enrol_instructor(self.data.get_authorized_instructor(), self.valid_course) self.valid_assignment = self.data.create_assignment_in_answer_period( self.valid_course, self.data.get_authorized_instructor()) self.valid_start_date = now.isoformat() + 'Z' self.valid_end_date = (now + datetime.timedelta(days=90)).isoformat() + 'Z' self.invalid_end_date = (now - datetime.timedelta(days=1)).isoformat() + 'Z' self.valid_answer_start = now.isoformat() + 'Z' self.valid_answer_end = (now + datetime.timedelta(days=90)).isoformat() + 'Z' self.invalid_answer_start = ( now - datetime.timedelta(days=1)).isoformat() + 'Z' self.invalid_answer_end = ( now - datetime.timedelta(days=1)).isoformat() + 'Z' self.invalid_answer_end2 = ( now + datetime.timedelta(days=91)).isoformat() + 'Z' self.valid_compare_start = now.isoformat() + 'Z' self.valid_compare_end = ( now + datetime.timedelta(days=90)).isoformat() + 'Z' self.invalid_compare_start = ( now - datetime.timedelta(days=1)).isoformat() + 'Z' self.invalid_compare_end = ( now - datetime.timedelta(days=1)).isoformat() + 'Z' self.invalid_compare_end2 = ( now + datetime.timedelta(days=91)).isoformat() + 'Z' self.validation_url = '/api/courses/' + self.valid_course.uuid + '/duplicate' self.validate_expected_assignment = { 'id': self.valid_assignment.uuid, 'name': self.valid_assignment.name, 'answer_start': self.valid_answer_start, 'answer_end': self.valid_answer_end, 'compare_start': self.valid_compare_start, 'compare_end': self.valid_compare_end } self.validate_expected_course = { 'name': 'duplicate validation course', 'year': 2015, 'term': 'Winter', 'sandbox': False, 'start_date': self.valid_start_date, 'end_date': self.valid_end_date, 'assignments': [self.validate_expected_assignment] } def test_duplicate_course_complex(self): original_course = self.data.get_course() # test authorized user with self.login(self.data.get_authorized_instructor().username): # test valid expected rv = self.client.post(self.validation_url, data=json.dumps( self.validate_expected_course), content_type='application/json') self.assert200(rv) # test invalid course start/end dates invalid_expected = self.validate_expected_course.copy() invalid_expected['end_date'] = self.invalid_end_date rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "Course end time must be after course start time.") # test invalid assignment answer start invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][ 0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['answer_start'] = None rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "No answer period start time provided for assignment " + self.valid_assignment.name + ".") # test invalid assignment answer end invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][ 0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['answer_end'] = None rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "No answer period end time provided for assignment " + self.valid_assignment.name + ".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][ 0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0][ 'answer_end'] = self.invalid_answer_end rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "Answer period end time must be after the answer start time for assignment " + self.valid_assignment.name + ".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][ 0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0][ 'answer_end'] = self.invalid_answer_end2 rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "Answer period end time must be before the course end time for assignment " + self.valid_assignment.name + ".") # test invalid assignment compare start invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][ 0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['compare_start'] = None rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "No compare period start time provided for assignment " + self.valid_assignment.name + ".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][ 0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0][ 'compare_start'] = self.invalid_compare_start rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "Compare period start time must be after the answer start time for assignment " + self.valid_assignment.name + ".") # test invalid assignment compare end invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][ 0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['compare_end'] = None rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "No compare period end time provided for assignment " + self.valid_assignment.name + ".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][ 0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0][ 'compare_end'] = self.invalid_compare_end rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "Compare period end time must be after the compare start time for assignment " + self.valid_assignment.name + ".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][ 0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0][ 'compare_end'] = self.invalid_compare_end2 rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual( rv.json["message"], "Compare period end time must be before the course end time for assignment " + self.valid_assignment.name + ".") # test deep copy assignments rv = self.client.post(self.url, data=json.dumps(self.expected), content_type='application/json') self.assert200(rv) duplicate_course = Course.query.filter_by( uuid=rv.json['id']).first() self.assertIsNotNone(duplicate_course) # verify course duplicated correctly self.assertNotEqual(original_course.id, duplicate_course.id) self.assertNotEqual(original_course.uuid, duplicate_course.uuid) self.assertEqual(self.expected['name'], duplicate_course.name) self.assertEqual(self.expected['year'], duplicate_course.year) self.assertEqual(self.expected['term'], duplicate_course.term) self.assertEqual(self.expected['sandbox'], duplicate_course.sandbox) self.assertEqual(self.expected['start_date'].replace('Z', ''), rv.json['start_date'].replace('+00:00', '')) self.assertEqual(self.expected['end_date'].replace('Z', ''), rv.json['end_date'].replace('+00:00', '')) # verify instructor added to duplicate course user_course = UserCourse.query \ .filter_by( user_id=self.data.get_authorized_instructor().id, course_uuid=rv.json['id'] ) \ .one_or_none() self.assertIsNotNone(user_course) original_assignments = original_course.assignments.all() duplicate_assignments = duplicate_course.assignments.all() self.assertEqual(len(original_assignments), 3) self.assertEqual(len(original_assignments), len(duplicate_assignments)) for index, original_assignment in enumerate(original_assignments): duplicate_assignment = duplicate_assignments[index] self.assertNotEqual(original_assignment.id, duplicate_assignment.id) self.assertNotEqual(original_assignment.uuid, duplicate_assignment.uuid) self.assertEqual(duplicate_course.id, duplicate_assignment.course_id) self.assertEqual(original_assignment.name, duplicate_assignment.name) self.assertEqual(original_assignment.description, duplicate_assignment.description) self.assertEqual(original_assignment.number_of_comparisons, duplicate_assignment.number_of_comparisons) self.assertEqual(original_assignment.students_can_reply, duplicate_assignment.students_can_reply) self.assertEqual(original_assignment.enable_self_evaluation, duplicate_assignment.enable_self_evaluation) self.assertEqual(original_assignment.pairing_algorithm, duplicate_assignment.pairing_algorithm) self.assertEqual( original_assignment.answer_start, (duplicate_assignment.answer_start - self.date_delta)) self.assertEqual( original_assignment.answer_end, (duplicate_assignment.answer_end - self.date_delta)) if original_assignment.compare_start != None: self.assertEqual( original_assignment.compare_start, (duplicate_assignment.compare_start - self.date_delta)) else: self.assertIsNone(duplicate_assignment.compare_start) if original_assignment.compare_end != None: self.assertEqual( original_assignment.compare_end, (duplicate_assignment.compare_end - self.date_delta)) else: self.assertIsNone(duplicate_assignment.compare_end) self.assertEqual(len(original_assignment.criteria), 1) self.assertEqual(len(original_assignment.criteria), len(duplicate_assignment.criteria)) for index, original_criteria in enumerate( original_assignment.criteria): duplicate_criteria = duplicate_assignment.criteria[index] self.assertEqual(original_criteria.id, duplicate_criteria.id) original_comparison_examples = original_assignment.comparison_examples.all( ) duplicate_comparison_examples = duplicate_assignment.comparison_examples.all( ) if original_assignment.id in [1, 2]: self.assertEqual(len(original_comparison_examples), 1) else: self.assertEqual(len(original_comparison_examples), 0) self.assertEqual(len(original_comparison_examples), len(duplicate_comparison_examples)) for index, original_comparison_example in enumerate( original_comparison_examples): duplicate_comparison_example = duplicate_comparison_examples[ index] self.assertNotEqual(original_comparison_example.id, duplicate_comparison_example.id) self.assertNotEqual( original_comparison_example.answer1_id, duplicate_comparison_example.answer1_id) self.assertNotEqual( original_comparison_example.answer2_id, duplicate_comparison_example.answer2_id) self.assertEqual( duplicate_assignment.id, duplicate_comparison_example.assignment_id) original_answer1 = original_comparison_example.answer1 duplicate_answer1 = duplicate_comparison_example.answer1 self.assertNotEqual(original_answer1.id, duplicate_answer1.id) self.assertEqual(duplicate_assignment.id, duplicate_answer1.assignment_id) self.assertEqual(original_answer1.content, duplicate_answer1.content) self.assertEqual(original_answer1.practice, duplicate_answer1.practice) self.assertEqual(original_answer1.active, duplicate_answer1.active) self.assertEqual(original_answer1.draft, duplicate_answer1.draft) original_answer2 = original_comparison_example.answer2 duplicate_answer2 = duplicate_comparison_example.answer2 self.assertNotEqual(original_answer2.id, duplicate_answer2.id) self.assertEqual(duplicate_assignment.id, duplicate_answer2.assignment_id) self.assertEqual(original_answer2.content, duplicate_answer2.content) self.assertEqual(original_answer2.practice, original_answer2.practice) self.assertEqual(original_answer2.active, original_answer2.active) self.assertEqual(original_answer2.draft, original_answer2.draft)
class AlgorithmValidityTests(ComPAIRAPITestCase): SCORING_ALGORITHM = ScoringAlgorithm.elo PAIRING_ALGORITHM = PairingAlgorithm.adaptive_min_delta NUMBER_OF_ANSWERS = 100 REPORT_PATH = None WINNER_SELECTOR = WinnerSelector.always_correct CORRECT_RATE = 1.0 ACTUAL_GRADES = None def create_app(self): settings = test_app_settings.copy() settings['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///'+self._sqlite_db() app = create_app(settings_override=settings) return app def setUp(self): # remove existing sqlite db if exists self._delete_sqlite_db() # get a new seed (needed for ConcurrentTestSuite so they don't produce the same results) random.seed() numpy.random.seed() super(AlgorithmValidityTests, self).setUp() self.data = ComparisonTestData() self.MAX_COMPARSIONS = (NUMBER_OF_ANSWERS - 1) * (NUMBER_OF_ANSWERS - 2) / 2 self.TOTAL_MAX_ROUNDS = 50 self.COMPARISONS_IN_ROUND = math.ceil(NUMBER_OF_ANSWERS / 2) # stop after lowest of total comparisons possible or 100 rounds worth of comparisons are complete self.TOTAL_MAX_COMPARISONS = min( self.COMPARISONS_IN_ROUND * self.TOTAL_MAX_ROUNDS, NUMBER_OF_ANSWERS * self.MAX_COMPARSIONS ) self.course = self.data.create_course() self.instructor = self.data.create_instructor() self.data.enrol_instructor(self.instructor, self.course) self.assignment = self.data.create_assignment_in_comparison_period( self.course, self.instructor, number_of_comparisons=self.MAX_COMPARSIONS, scoring_algorithm=AlgorithmValidityTests.SCORING_ALGORITHM, pairing_algorithm=AlgorithmValidityTests.PAIRING_ALGORITHM) self.students = [] self.answers = [] self.grade_by_answer_uuid = {} actual_grades = ACTUAL_GRADES if not actual_grades: actual_grades = numpy.random.normal(0.78, 0.1, self.NUMBER_OF_ANSWERS) for grade in actual_grades: student = self.data.create_normal_user() self.data.enrol_student(student, self.course) self.students.append(student) answer = self.data.create_answer(self.assignment, student, with_score=False) self.answers.append(answer) self.grade_by_answer_uuid[answer.uuid] = grade self.base_url = self._build_url(self.course.uuid, self.assignment.uuid) db.session.commit() def tearDown(self): self._delete_sqlite_db() def _sqlite_db(self): return 'test_comparison'+str(os.getpid())+'.db' def _delete_sqlite_db(self): file_path = os.path.join(os.getcwd(), 'compair', self._sqlite_db()) if os.path.isfile(file_path): try: os.remove(file_path) except Exception as e: print(e) def _decide_winner(self, answer1_uuid, answer2_uuid): answer1_grade = self.grade_by_answer_uuid[answer1_uuid] answer2_grade = self.grade_by_answer_uuid[answer2_uuid] if AlgorithmValidityTests.WINNER_SELECTOR == WinnerSelector.always_correct: return self.always_correct(answer1_grade, answer2_grade) elif AlgorithmValidityTests.WINNER_SELECTOR == WinnerSelector.guessing: return self.guessing() elif AlgorithmValidityTests.WINNER_SELECTOR == WinnerSelector.correct_with_error: return self.correct_with_error(answer1_grade, answer2_grade, AlgorithmValidityTests.CORRECT_RATE) elif AlgorithmValidityTests.WINNER_SELECTOR == WinnerSelector.closely_matched_errors: return self.closely_matched_errors(answer1_grade, answer2_grade, AlgorithmValidityTests.CORRECT_RATE) else: raise Exception() def always_correct(self, value1, value2): return self.correct_with_error(value1, value2, 1.0) def correct_with_error(self, value1, value2, correct_rate): if value1 == value2: return self.guessing() correct_answer = WinningAnswer.answer1 if value1 > value2 else WinningAnswer.answer2 incorrect_answer = WinningAnswer.answer1 if value1 < value2 else WinningAnswer.answer2 return correct_answer if random.random() <= correct_rate else incorrect_answer def guessing(self): return WinningAnswer.answer1 if random.random() <= 0.5 else WinningAnswer.answer2 def closely_matched_errors(self, value1, value2, sigma): # make the actual values of answers fuzzy (represents perceived value errors) fuzzy_value1 = numpy.random.normal(value1, sigma, 1)[0] fuzzy_value2 = numpy.random.normal(value2, sigma, 1)[0] # return the correct winner using fuzzy perceived values return self.always_correct(fuzzy_value1, fuzzy_value2) def _build_url(self, course_uuid, assignment_uuid, tail=""): url = '/api/courses/' + course_uuid + '/assignments/' + assignment_uuid + '/comparisons' + tail return url def _build_comparison_submit(self, winner, draft=False): submit = { 'comparison_criteria': [], 'draft': draft } for criterion in self.assignment.criteria: submit['comparison_criteria'].append({ 'criterion_id': criterion.uuid, 'winner': winner, 'content': None }) return submit def test_random_students_perform_comparisons(self): self.student_comparison_count = { student.id: 0 for student in self.students } comparison_count = 0 round_count = 0 results = [] while comparison_count < self.TOTAL_MAX_COMPARISONS: # select a random student to answer student = random.choice(self.students) with self.login(student.username): # perform selection algorithm rv = self.client.get(self.base_url) self.assert200(rv) winner = self._decide_winner(rv.json['comparison']['answer1_id'], rv.json['comparison']['answer2_id']) comparison_submit = self._build_comparison_submit(winner.value) rv = self.client.post(self.base_url, data=json.dumps(comparison_submit), content_type='application/json') self.assert200(rv) comparison_count += 1 # remove students who have completed all comparisons self.student_comparison_count[student.id] += 1 if self.student_comparison_count[student.id] >= self.MAX_COMPARSIONS: indexes = [i for i, s in enumerate(self.students) if student.id == s.id] del self.students[indexes[0]] if comparison_count % self.COMPARISONS_IN_ROUND == 0: round_count += 1 actual_grades = [] current_scores = [] for answer in self.answers: answer_score = AnswerScore.query.filter_by(answer_id=answer.id).first() if answer_score: current_scores.append(answer_score.score) actual_grades.append(self.grade_by_answer_uuid[answer.uuid]) r_value, pearsonr_p_value = pearsonr(actual_grades, current_scores) #rho, spearmanr_p_value = spearmanr(actual_grades, current_scores) #tau, kendalltau_p_value = kendalltau(actual_grades, current_scores) results.append(str(r_value)) #results.append(str(rho)) #results.append(str(tau)) #print("Round {} ----------- pearsonr={} value=={} spearmanr={} value=={} kendalltau={} value=={}".format( # round_count, r_value, pearsonr_p_value, rho, spearmanr_p_value, tau, kendalltau_p_value #)) if r_value >= ACCEPTABLE_CORRELATION: break with open(AlgorithmValidityTests.REPORT_PATH, "a") as csvfile: out = csv.writer(csvfile) out.writerow(results)
class CoursesDuplicateComplexAPITests(ComPAIRAPITestCase): def setUp(self): super(CoursesDuplicateComplexAPITests, self).setUp() self.data = ComparisonTestData() self.course = self.data.get_course() # add start_date self.course.start_date = datetime.datetime.utcnow() self.course.end_date = datetime.datetime.utcnow() + datetime.timedelta(days=90) index = 0 self.assertGreaterEqual(self.course.assignments.count(), 4) # make sure we have enough assignments to play with for assignment in self.course.assignments: assignment.answer_start = self.course.start_date + datetime.timedelta(days=index) assignment.answer_end = self.course.start_date + datetime.timedelta(days=index+7) if assignment.compare_start != None: assignment.compare_start = self.course.start_date + datetime.timedelta(days=index+14) if assignment.compare_end != None: assignment.compare_end = self.course.start_date + datetime.timedelta(days=index+21) # modify some assignments with self-evaluation if index % 2 == 0: assignment.enable_self_evaluation = True else: assignment.enable_self_evaluation = False if index % 4 == 0: assignment.self_eval_start = assignment.answer_end + datetime.timedelta(days=1) assignment.self_eval_end = assignment.self_eval_start + datetime.timedelta(days=1) assignment.self_eval_instructions = ''.join([choice(ascii_letters) for i in range(10)]) else: assignment.self_eval_start = None assignment.self_eval_end = None assignment.self_eval_instructions = None index+=1 db.session.commit() self.url = '/api/courses/' + self.course.uuid + '/duplicate' self.date_delta = datetime.timedelta(days=180) self.expected = { 'name': 'duplicate course', 'year': 2015, 'term': 'Winter', 'sandbox': False, 'start_date': (self.course.start_date + self.date_delta).isoformat() + 'Z', 'end_date': (self.course.end_date + self.date_delta).isoformat() + 'Z', 'assignments': [] } for assignment in self.course.assignments: if not assignment.active: continue assignment_data = { 'id': assignment.uuid, 'name': assignment.name, 'answer_start': (assignment.answer_start + self.date_delta).isoformat() + 'Z', 'answer_end': (assignment.answer_end + self.date_delta).isoformat() + 'Z', 'enable_self_evaluation': assignment.enable_self_evaluation, 'self_eval_start': (assignment.self_eval_start + self.date_delta).isoformat() + 'Z' if assignment.self_eval_start else assignment.self_eval_start, 'self_eval_end': (assignment.self_eval_end + self.date_delta).isoformat() + 'Z' if assignment.self_eval_end else assignment.self_eval_end, 'self_eval_instructions': assignment.self_eval_instructions, } if assignment.compare_start != None: assignment_data['compare_start'] = (assignment.compare_start + self.date_delta).isoformat() + 'Z' if assignment.compare_end != None: assignment_data['compare_end'] = (assignment.compare_end + self.date_delta).isoformat() + 'Z' self.expected['assignments'].append(assignment_data) now = datetime.datetime.utcnow() self.valid_course = self.data.create_course() self.data.enrol_instructor(self.data.get_authorized_instructor(), self.valid_course) self.valid_assignment = self.data.create_assignment_in_answer_period(self.valid_course, self.data.get_authorized_instructor()) self.valid_start_date = now.isoformat() + 'Z' self.valid_end_date = (now + datetime.timedelta(days=120)).isoformat() + 'Z' self.invalid_end_date = (now - datetime.timedelta(days=1)).isoformat() + 'Z' self.valid_answer_start = now.isoformat() + 'Z' self.valid_answer_end = (now + datetime.timedelta(days=90)).isoformat() + 'Z' self.invalid_answer_start = (now - datetime.timedelta(days=1)).isoformat() + 'Z' self.invalid_answer_end = (now - datetime.timedelta(days=1)).isoformat() + 'Z' self.invalid_answer_end2 = (now + datetime.timedelta(days=121)).isoformat() + 'Z' self.valid_compare_start = now.isoformat() + 'Z' self.valid_compare_end = (now + datetime.timedelta(days=90)).isoformat() + 'Z' self.invalid_compare_start = (now - datetime.timedelta(days=1)).isoformat() + 'Z' self.invalid_compare_end = (now - datetime.timedelta(days=1)).isoformat() + 'Z' self.invalid_compare_end2 = (now + datetime.timedelta(days=121)).isoformat() + 'Z' self.valid_self_eval_start = (now + datetime.timedelta(days=92)).isoformat() + 'Z' self.valid_self_eval_end = (now + datetime.timedelta(days=120)).isoformat() + 'Z' self.invalid_self_eval_start = now.isoformat() + 'Z' # = compare_start self.invalid_self_eval_start2 = (now + datetime.timedelta(days=90)).isoformat() + 'Z' # = answer_end self.invalid_self_eval_end = (now + datetime.timedelta(days=91)).isoformat() + 'Z' # < self_eval_start self.invalid_self_eval_end2 = (now + datetime.timedelta(days=121)).isoformat() + 'Z' # > course_end self.validation_url = '/api/courses/' + self.valid_course.uuid + '/duplicate' self.validate_expected_assignment = { 'id': self.valid_assignment.uuid, 'name': self.valid_assignment.name, 'answer_start': self.valid_answer_start, 'answer_end': self.valid_answer_end, 'compare_start': self.valid_compare_start, 'compare_end': self.valid_compare_end } self.validate_expected_course = { 'name': 'duplicate validation course', 'year': 2015, 'term': 'Winter', 'sandbox': False, 'start_date': self.valid_start_date, 'end_date': self.valid_end_date, 'assignments': [self.validate_expected_assignment] } def test_duplicate_course_complex(self): original_course = self.data.get_course() # test authorized user with self.login(self.data.get_authorized_instructor().username): # test valid expected rv = self.client.post(self.validation_url, data=json.dumps(self.validate_expected_course), content_type='application/json') self.assert200(rv) # test invalid course start/end dates invalid_expected = self.validate_expected_course.copy() invalid_expected['end_date'] = self.invalid_end_date rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Course end time must be after course start time.") # test invalid assignment answer start invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['answer_start'] = None rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "No answer period start time provided for assignment "+self.valid_assignment.name+".") # test invalid assignment answer end invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['answer_end'] = None rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "No answer period end time provided for assignment "+self.valid_assignment.name+".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['answer_end'] = self.invalid_answer_end rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Answer period end time must be after the answer start time for assignment "+self.valid_assignment.name+".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['answer_end'] = self.invalid_answer_end2 rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Answer period end time must be before the course end time for assignment "+self.valid_assignment.name+".") # test invalid assignment compare start invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['compare_start'] = None rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "No compare period start time provided for assignment "+self.valid_assignment.name+".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['compare_start'] = self.invalid_compare_start rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Compare period start time must be after the answer start time for assignment "+self.valid_assignment.name+".") # test invalid assignment compare end invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['compare_end'] = None rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "No compare period end time provided for assignment "+self.valid_assignment.name+".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['compare_end'] = self.invalid_compare_end rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Compare period end time must be after the compare start time for assignment "+self.valid_assignment.name+".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['compare_end'] = self.invalid_compare_end2 rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Compare period end time must be before the course end time for assignment "+self.valid_assignment.name+".") # test invalid assignment self-eval start invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['self_eval_start'] = None invalid_expected['assignments'][0]['self_eval_end'] = self.valid_self_eval_end rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "No self-evaluation start time provided for assignment "+self.valid_assignment.name+".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['self_eval_start'] = self.invalid_self_eval_start invalid_expected['assignments'][0]['self_eval_end'] = self.valid_self_eval_end rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Self-evaluation start time must be after the compare start time for assignment "+self.valid_assignment.name+".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['compare_start'] = None invalid_expected['assignments'][0]['compare_end'] = None invalid_expected['assignments'][0]['self_eval_start'] = self.invalid_self_eval_start2 invalid_expected['assignments'][0]['self_eval_end'] = self.valid_self_eval_end rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Self-evaluation start time must be after the answer end time for assignment "+self.valid_assignment.name+".") # test invalid assignment self-eval end invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['self_eval_start'] = self.valid_self_eval_start invalid_expected['assignments'][0]['self_eval_end'] = None rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "No self-evaluation end time provided for assignment "+self.valid_assignment.name+".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['self_eval_start'] = self.valid_self_eval_start invalid_expected['assignments'][0]['self_eval_end'] = self.invalid_self_eval_end rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Self-evaluation end time must be after the self-evaluation start time for assignment "+self.valid_assignment.name+".") invalid_expected = self.validate_expected_course.copy() invalid_expected['assignments'][0] = self.validate_expected_assignment.copy() invalid_expected['assignments'][0]['self_eval_start'] = self.valid_self_eval_start invalid_expected['assignments'][0]['self_eval_end'] = self.invalid_self_eval_end2 rv = self.client.post(self.validation_url, data=json.dumps(invalid_expected), content_type='application/json') self.assert400(rv) self.assertEqual(rv.json["title"], "Course Not Saved") self.assertEqual(rv.json["message"], "Self-evaluation end time must be before the course end time for assignment "+self.valid_assignment.name+".") # test deep copy assignments rv = self.client.post(self.url, data=json.dumps(self.expected), content_type='application/json') self.assert200(rv) duplicate_course = Course.query.filter_by(uuid=rv.json['id']).first() self.assertIsNotNone(duplicate_course) # verify course duplicated correctly self.assertNotEqual(original_course.id, duplicate_course.id) self.assertNotEqual(original_course.uuid, duplicate_course.uuid) self.assertEqual(self.expected['name'], duplicate_course.name) self.assertEqual(self.expected['year'], duplicate_course.year) self.assertEqual(self.expected['term'], duplicate_course.term) self.assertEqual(self.expected['sandbox'], duplicate_course.sandbox) self.assertEqual(self.expected['start_date'].replace('Z', ''), rv.json['start_date'].replace('+00:00', '')) self.assertEqual(self.expected['end_date'].replace('Z', ''), rv.json['end_date'].replace('+00:00', '')) # verify instructor added to duplicate course user_course = UserCourse.query \ .filter_by( user_id=self.data.get_authorized_instructor().id, course_uuid=rv.json['id'] ) \ .one_or_none() self.assertIsNotNone(user_course) original_assignments = original_course.assignments.all() duplicate_assignments = duplicate_course.assignments.all() self.assertEqual(len(original_assignments), 5) self.assertEqual(len(original_assignments), len(duplicate_assignments)) for index, original_assignment in enumerate(original_assignments): duplicate_assignment = duplicate_assignments[index] self.assertNotEqual(original_assignment.id, duplicate_assignment.id) self.assertNotEqual(original_assignment.uuid, duplicate_assignment.uuid) self.assertEqual(duplicate_course.id, duplicate_assignment.course_id) self.assertEqual(original_assignment.name, duplicate_assignment.name) self.assertEqual(original_assignment.description, duplicate_assignment.description) self.assertEqual(original_assignment.number_of_comparisons, duplicate_assignment.number_of_comparisons) self.assertEqual(original_assignment.students_can_reply, duplicate_assignment.students_can_reply) self.assertEqual(original_assignment.enable_self_evaluation, duplicate_assignment.enable_self_evaluation) self.assertEqual(original_assignment.pairing_algorithm, duplicate_assignment.pairing_algorithm) self.assertEqual(original_assignment.answer_grade_weight, duplicate_assignment.answer_grade_weight) self.assertEqual(original_assignment.comparison_grade_weight, duplicate_assignment.comparison_grade_weight) self.assertEqual(original_assignment.self_evaluation_grade_weight, duplicate_assignment.self_evaluation_grade_weight) self.assertEqual(original_assignment.enable_group_answers, duplicate_assignment.enable_group_answers) self.assertEqual(original_assignment.scoring_algorithm, duplicate_assignment.scoring_algorithm) self.assertEqual(original_assignment.peer_feedback_prompt, duplicate_assignment.peer_feedback_prompt) self.assertEqual(original_assignment.educators_can_compare, duplicate_assignment.educators_can_compare) self.assertEqual(original_assignment.rank_display_limit, duplicate_assignment.rank_display_limit) self.assertEqual(original_assignment.answer_start, (duplicate_assignment.answer_start - self.date_delta)) self.assertEqual(original_assignment.answer_end, (duplicate_assignment.answer_end - self.date_delta)) if original_assignment.compare_start != None: self.assertEqual(original_assignment.compare_start, (duplicate_assignment.compare_start - self.date_delta)) else: self.assertIsNone(duplicate_assignment.compare_start) if original_assignment.compare_end != None: self.assertEqual(original_assignment.compare_end, (duplicate_assignment.compare_end - self.date_delta)) else: self.assertIsNone(duplicate_assignment.compare_end) self.assertEqual(len(original_assignment.criteria), 1) self.assertEqual(len(original_assignment.criteria), len(duplicate_assignment.criteria)) for index, original_criteria in enumerate(original_assignment.criteria): duplicate_criteria = duplicate_assignment.criteria[index] self.assertEqual(original_criteria.id, duplicate_criteria.id) self.assertEqual(original_assignment.enable_self_evaluation, duplicate_assignment.enable_self_evaluation) if original_assignment.self_eval_start: self.assertEqual(original_assignment.self_eval_start, (duplicate_assignment.self_eval_start - self.date_delta)) else: self.assertIsNone(duplicate_assignment.self_eval_start) if original_assignment.self_eval_end: self.assertEqual(original_assignment.self_eval_end, (duplicate_assignment.self_eval_end - self.date_delta)) else: self.assertIsNone(duplicate_assignment.self_eval_end) self.assertEqual(original_assignment.self_eval_instructions, duplicate_assignment.self_eval_instructions) original_comparison_examples = original_assignment.comparison_examples.all() duplicate_comparison_examples = duplicate_assignment.comparison_examples.all() if original_assignment.id in [1,2,3,4]: self.assertEqual(len(original_comparison_examples), 1) else: self.assertEqual(len(original_comparison_examples), 0) self.assertEqual(len(original_comparison_examples), len(duplicate_comparison_examples)) for index, original_comparison_example in enumerate(original_comparison_examples): duplicate_comparison_example = duplicate_comparison_examples[index] self.assertNotEqual(original_comparison_example.id, duplicate_comparison_example.id) self.assertNotEqual(original_comparison_example.answer1_id, duplicate_comparison_example.answer1_id) self.assertNotEqual(original_comparison_example.answer2_id, duplicate_comparison_example.answer2_id) self.assertEqual(duplicate_assignment.id, duplicate_comparison_example.assignment_id) original_answer1 = original_comparison_example.answer1 duplicate_answer1 = duplicate_comparison_example.answer1 self.assertNotEqual(original_answer1.id, duplicate_answer1.id) self.assertEqual(duplicate_assignment.id, duplicate_answer1.assignment_id) self.assertEqual(original_answer1.content, duplicate_answer1.content) self.assertEqual(original_answer1.practice, duplicate_answer1.practice) self.assertEqual(original_answer1.active, duplicate_answer1.active) self.assertEqual(original_answer1.draft, duplicate_answer1.draft) original_answer2 = original_comparison_example.answer2 duplicate_answer2 = duplicate_comparison_example.answer2 self.assertNotEqual(original_answer2.id, duplicate_answer2.id) self.assertEqual(duplicate_assignment.id, duplicate_answer2.assignment_id) self.assertEqual(original_answer2.content, duplicate_answer2.content) self.assertEqual(original_answer2.practice, original_answer2.practice) self.assertEqual(original_answer2.active, original_answer2.active) self.assertEqual(original_answer2.draft, original_answer2.draft)
class UsersCourseStatusAPITests(ComPAIRAPITestCase): def setUp(self): super(UsersCourseStatusAPITests, self).setUp() self.data = ComparisonTestData() def _create_enough_answers_for_assignment(self, assignment): course = assignment.course for i in range(assignment.number_of_comparisons*2): student = self.data.create_normal_user() self.data.enrol_student(student, course) self.data.create_answer(assignment, student) def _submit_all_comparisons_for_assignment(self, assignment, user_id): submit_count = 0 for comparison_example in assignment.comparison_examples: comparisons = Comparison.create_new_comparison_set(assignment.id, user_id, False) self.assertEqual(comparisons[0].answer1_id, comparison_example.answer1_id) self.assertEqual(comparisons[0].answer2_id, comparison_example.answer2_id) for comparison in comparisons: comparison.completed = True comparison.winner_id = min([comparisons[0].answer1_id, comparisons[0].answer2_id]) db.session.add(comparison) submit_count += 1 db.session.commit() for i in range(assignment.number_of_comparisons): comparisons = Comparison.create_new_comparison_set(assignment.id, user_id, False) for comparison in comparisons: comparison.completed = True comparison.winner_id = min([comparisons[0].answer1_id, comparisons[0].answer2_id]) db.session.add(comparison) submit_count += 1 db.session.commit() Comparison.calculate_scores(assignment.id) return submit_count def test_get_course_list(self): # test login required course = self.data.get_course() url = '/api/users/courses/status?ids='+course.uuid rv = self.client.get(url) self.assert401(rv) with self.login(self.data.get_authorized_student().username): # ids missing rv = self.client.get('/api/users/courses/status') self.assert400(rv) # empty ids rv = self.client.get('/api/users/courses/status?ids=') self.assert400(rv) # empty course doesn't exists rv = self.client.get('/api/users/courses/status?ids=999') self.assert400(rv) # test authorized student rv = self.client.get(url) self.assert200(rv) self.assertEqual(1, len(rv.json['statuses'])) self.assertIn(course.uuid, rv.json['statuses']) # test course with no assignments course = self.data.create_course() self.data.enrol_student(self.data.get_authorized_student(), course) self.data.enrol_instructor(self.data.get_authorized_instructor(), course) url = '/api/users/courses/status?ids='+course.uuid rv = self.client.get(url) self.assert200(rv) self.assertEqual(1, len(rv.json['statuses'])) self.assertIn(course.uuid, rv.json['statuses']) self.assertEqual(0, rv.json['statuses'][course.uuid]['incomplete_assignments']) # test course with 2 assignment self.data.create_assignment(course, self.data.get_authorized_instructor(), datetime.datetime.now() + datetime.timedelta(days=7), datetime.datetime.now() + datetime.timedelta(days=14)) past_assignment = self.data.create_assignment(course, self.data.get_authorized_instructor(), datetime.datetime.now() - datetime.timedelta(days=28), datetime.datetime.now() - datetime.timedelta(days=21)) past_assignment.compare_start = datetime.datetime.now() - datetime.timedelta(days=14) past_assignment.compare_end = datetime.datetime.now() - datetime.timedelta(days=7) db.session.commit() rv = self.client.get(url) self.assert200(rv) self.assertEqual(1, len(rv.json['statuses'])) self.assertEqual(0, rv.json['statuses'][course.uuid]['incomplete_assignments']) # test course with 3 assignment # - 1 in answering period answering_assignment = self.data.create_assignment_in_answer_period(course, self.data.get_authorized_instructor()) rv = self.client.get(url) self.assert200(rv) self.assertEqual(1, len(rv.json['statuses'])) self.assertEqual(1, rv.json['statuses'][course.uuid]['incomplete_assignments']) # test course with 5 assignment # - 1 in answering period # - 1 in comparison_period # - 1 in comparison_period with self evaluation comparing_assignment = self.data.create_assignment_in_comparison_period(course, self.data.get_authorized_instructor()) comparing_assignment_self_eval = self.data.create_assignment_in_comparison_period(course, self.data.get_authorized_instructor()) comparing_assignment_self_eval.enable_self_evaluation = True db.session.commit() rv = self.client.get(url) self.assert200(rv) self.assertEqual(1, len(rv.json['statuses'])) self.assertEqual(3, rv.json['statuses'][course.uuid]['incomplete_assignments']) # test course with 5 assignment # - 1 in answering period (answered) # - 1 in comparison_period # - 1 in comparison_period with self evaluation self.data.create_answer(answering_assignment, self.data.get_authorized_student()) rv = self.client.get(url) self.assert200(rv) self.assertEqual(1, len(rv.json['statuses'])) self.assertEqual(2, rv.json['statuses'][course.uuid]['incomplete_assignments']) # test course with 5 assignment # - 1 in answering period (answered) # - 1 in comparison_period (fully compared) # - 1 in comparison_period with self evaluation self._create_enough_answers_for_assignment(comparing_assignment) self._submit_all_comparisons_for_assignment(comparing_assignment, self.data.get_authorized_student().id) rv = self.client.get(url) self.assert200(rv) self.assertEqual(1, len(rv.json['statuses'])) self.assertEqual(1, rv.json['statuses'][course.uuid]['incomplete_assignments']) # test course with 5 assignment # - 1 in answering period (answered) # - 1 in comparison_period (fully compared) # - 1 in comparison_period with self evaluation (fully compared, not self-evaulated) self._create_enough_answers_for_assignment(comparing_assignment_self_eval) self._submit_all_comparisons_for_assignment(comparing_assignment_self_eval, self.data.get_authorized_student().id) rv = self.client.get(url) self.assert200(rv) self.assertEqual(1, len(rv.json['statuses'])) self.assertEqual(1, rv.json['statuses'][course.uuid]['incomplete_assignments']) # test course with 5 assignment # - 1 in answering period (answered) # - 1 in comparison_period (fully compared) # - 1 in comparison_period with self evaluation (fully compared and self-evaulated) answer = self.data.create_answer(comparing_assignment_self_eval, self.data.get_authorized_student()) answer_comment = AnswerComment( user_id=self.data.get_authorized_student().id, answer_id=answer.id, comment_type=AnswerCommentType.self_evaluation, draft=False ) db.session.add(answer_comment) db.session.commit() rv = self.client.get(url) self.assert200(rv) self.assertEqual(1, len(rv.json['statuses'])) self.assertEqual(0, rv.json['statuses'][course.uuid]['incomplete_assignments'])
class AlgorithmValidityTests(ComPAIRAPITestCase): # def create_app(self): # settings = test_app_settings.copy() # settings['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///'+self._sqlite_db() # app = create_app(settings_override=settings) # return app def setUp(self): if SKIP_VALIDITY_TEST: self.skipTest("scipy and numpy not installed. run `make deps`") # remove existing sqlite db if exists # self._delete_sqlite_db() # TODO: Modify conditions to be more fuzzy (closely_matched_errors with 0.05 correct rate) # Depends on results of research super(AlgorithmValidityTests, self).setUp() self.data = ComparisonTestData() self.ACCEPTABLE_CORRELATION = 0.8 self.NUMBER_OF_ANSWERS = 40 self.WINNER_SELECTOR = WinnerSelector.always_correct self.CORRECT_RATE = 1.0 self.MAX_COMPARSIONS = (self.NUMBER_OF_ANSWERS - 1) * (self.NUMBER_OF_ANSWERS - 2) / 2 self.TOTAL_MAX_ROUNDS = 6 # 3 comparisons per student self.COMPARISONS_IN_ROUND = math.ceil(self.NUMBER_OF_ANSWERS / 2) # stop after lowest of total comparisons possible or 100 rounds worth of comparisons are complete self.TOTAL_MAX_COMPARISONS = min( self.COMPARISONS_IN_ROUND * self.TOTAL_MAX_ROUNDS, self.NUMBER_OF_ANSWERS * self.MAX_COMPARSIONS ) self.course = self.data.create_course() self.instructor = self.data.create_instructor() self.data.enrol_instructor(self.instructor, self.course) self.assignment = self.data.create_assignment_in_comparison_period( self.course, self.instructor, number_of_comparisons=self.MAX_COMPARSIONS, scoring_algorithm=ScoringAlgorithm.elo, pairing_algorithm=PairingAlgorithm.adaptive_min_delta ) self.students = [] self.answers = [] self.grade_by_answer_uuid = {} actual_grades = numpy.random.normal(0.78, 0.1, self.NUMBER_OF_ANSWERS) for grade in actual_grades: student = self.data.create_normal_user() self.data.enrol_student(student, self.course) self.students.append(student) answer = self.data.create_answer(self.assignment, student, with_score=False) self.answers.append(answer) self.grade_by_answer_uuid[answer.uuid] = grade self.base_url = self._build_url(self.course.uuid, self.assignment.uuid) db.session.commit() # def tearDown(self): # self._delete_sqlite_db() # def _sqlite_db(self): # return 'test_comparison'+str(os.getpid())+'.db' # def _delete_sqlite_db(self): # file_path = os.path.join(os.getcwd(), 'compair', self._sqlite_db()) # if os.path.isfile(file_path): # try: # os.remove(file_path) # except Exception as e: # print(e) def _decide_winner(self, answer1_uuid, answer2_uuid): answer1_grade = self.grade_by_answer_uuid[answer1_uuid] answer2_grade = self.grade_by_answer_uuid[answer2_uuid] if self.WINNER_SELECTOR == WinnerSelector.always_correct: return self.always_correct(answer1_grade, answer2_grade) elif self.WINNER_SELECTOR == WinnerSelector.guessing: return self.guessing() elif self.WINNER_SELECTOR == WinnerSelector.correct_with_error: return self.correct_with_error(answer1_grade, answer2_grade, self.CORRECT_RATE) elif self.WINNER_SELECTOR == WinnerSelector.closely_matched_errors: return self.closely_matched_errors(answer1_grade, answer2_grade, self.CORRECT_RATE) else: raise Exception() def always_correct(self, value1, value2): return self.correct_with_error(value1, value2, 1.0) def correct_with_error(self, value1, value2, correct_rate): if value1 == value2: return self.guessing() correct_answer = WinningAnswer.answer1 if value1 > value2 else WinningAnswer.answer2 incorrect_answer = WinningAnswer.answer1 if value1 < value2 else WinningAnswer.answer2 return correct_answer if random.random() <= correct_rate else incorrect_answer def guessing(self): return WinningAnswer.answer1 if random.random() <= 0.5 else WinningAnswer.answer2 def closely_matched_errors(self, value1, value2, sigma): # make the actual values of answers fuzzy (represents perceived value errors) fuzzy_value1 = numpy.random.normal(value1, sigma, 1)[0] fuzzy_value2 = numpy.random.normal(value2, sigma, 1)[0] # return the correct winner using fuzzy perceived values return self.always_correct(fuzzy_value1, fuzzy_value2) def _build_url(self, course_uuid, assignment_uuid, tail=""): url = '/api/courses/' + course_uuid + '/assignments/' + assignment_uuid + '/comparisons' + tail return url def _build_comparison_submit(self, winner, draft=False): submit = { 'comparison_criteria': [], 'draft': draft } for criterion in self.assignment.criteria: submit['comparison_criteria'].append({ 'criterion_id': criterion.uuid, 'winner': winner, 'content': None }) return submit def test_random_students_perform_comparisons(self): self.student_comparison_count = { student.id: 0 for student in self.students } comparison_count = 0 round_count = 0 r_value = None while comparison_count < self.TOTAL_MAX_COMPARISONS: # select a random student to answer student = random.choice(self.students) with self.login(student.username): # perform selection algorithm rv = self.client.get(self.base_url) self.assert200(rv) winner = self._decide_winner(rv.json['comparison']['answer1_id'], rv.json['comparison']['answer2_id']) comparison_submit = self._build_comparison_submit(winner.value) rv = self.client.post(self.base_url, data=json.dumps(comparison_submit), content_type='application/json') self.assert200(rv) comparison_count += 1 # remove students who have completed all comparisons self.student_comparison_count[student.id] += 1 if self.student_comparison_count[student.id] >= self.MAX_COMPARSIONS: indexes = [i for i, s in enumerate(self.students) if student.id == s.id] del self.students[indexes[0]] if comparison_count % self.COMPARISONS_IN_ROUND == 0: round_count += 1 actual_grades = [] current_scores = [] for answer in self.answers: answer_score = AnswerScore.query.filter_by(answer_id=answer.id).first() if answer_score: current_scores.append(answer_score.score) actual_grades.append(self.grade_by_answer_uuid[answer.uuid]) r_value, pearsonr_p_value = pearsonr(actual_grades, current_scores) if r_value >= self.ACCEPTABLE_CORRELATION: break self.assertGreaterEqual(r_value, self.ACCEPTABLE_CORRELATION) self.assertLessEqual(round_count, self.TOTAL_MAX_ROUNDS)
class AlgorithmValidityTests(ComPAIRAPITestCase): SCORING_ALGORITHM = ScoringAlgorithm.elo PAIRING_ALGORITHM = PairingAlgorithm.adaptive_min_delta NUMBER_OF_ANSWERS = 100 REPORT_PATH = None WINNER_SELECTOR = WinnerSelector.always_correct CORRECT_RATE = 1.0 ACTUAL_GRADES = None def create_app(self): settings = test_app_settings.copy() settings['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + self._sqlite_db() app = create_app(settings_override=settings) return app def setUp(self): # remove existing sqlite db if exists self._delete_sqlite_db() # get a new seed (needed for ConcurrentTestSuite so they don't produce the same results) random.seed() numpy.random.seed() super(AlgorithmValidityTests, self).setUp() self.data = ComparisonTestData() self.MAX_COMPARSIONS = (NUMBER_OF_ANSWERS - 1) * (NUMBER_OF_ANSWERS - 2) / 2 self.TOTAL_MAX_ROUNDS = 50 self.COMPARISONS_IN_ROUND = math.ceil(NUMBER_OF_ANSWERS / 2) # stop after lowest of total comparisons possible or 100 rounds worth of comparisons are complete self.TOTAL_MAX_COMPARISONS = min( self.COMPARISONS_IN_ROUND * self.TOTAL_MAX_ROUNDS, NUMBER_OF_ANSWERS * self.MAX_COMPARSIONS) self.course = self.data.create_course() self.instructor = self.data.create_instructor() self.data.enrol_instructor(self.instructor, self.course) self.assignment = self.data.create_assignment_in_comparison_period( self.course, self.instructor, number_of_comparisons=self.MAX_COMPARSIONS, scoring_algorithm=AlgorithmValidityTests.SCORING_ALGORITHM, pairing_algorithm=AlgorithmValidityTests.PAIRING_ALGORITHM) self.students = [] self.answers = [] self.grade_by_answer_uuid = {} actual_grades = ACTUAL_GRADES if not actual_grades: actual_grades = numpy.random.normal(0.78, 0.1, self.NUMBER_OF_ANSWERS) for grade in actual_grades: student = self.data.create_normal_user() self.data.enrol_student(student, self.course) self.students.append(student) answer = self.data.create_answer(self.assignment, student, with_score=False) self.answers.append(answer) self.grade_by_answer_uuid[answer.uuid] = grade self.base_url = self._build_url(self.course.uuid, self.assignment.uuid) db.session.commit() def tearDown(self): self._delete_sqlite_db() def _sqlite_db(self): return 'test_comparison' + str(os.getpid()) + '.db' def _delete_sqlite_db(self): file_path = os.path.join(os.getcwd(), 'compair', self._sqlite_db()) if os.path.isfile(file_path): try: os.remove(file_path) except Exception as e: print(e) def _decide_winner(self, answer1_uuid, answer2_uuid): answer1_grade = self.grade_by_answer_uuid[answer1_uuid] answer2_grade = self.grade_by_answer_uuid[answer2_uuid] if AlgorithmValidityTests.WINNER_SELECTOR == WinnerSelector.always_correct: return self.always_correct(answer1_grade, answer2_grade) elif AlgorithmValidityTests.WINNER_SELECTOR == WinnerSelector.guessing: return self.guessing() elif AlgorithmValidityTests.WINNER_SELECTOR == WinnerSelector.correct_with_error: return self.correct_with_error(answer1_grade, answer2_grade, AlgorithmValidityTests.CORRECT_RATE) elif AlgorithmValidityTests.WINNER_SELECTOR == WinnerSelector.closely_matched_errors: return self.closely_matched_errors( answer1_grade, answer2_grade, AlgorithmValidityTests.CORRECT_RATE) else: raise Exception() def always_correct(self, value1, value2): return self.correct_with_error(value1, value2, 1.0) def correct_with_error(self, value1, value2, correct_rate): if value1 == value2: return self.guessing() correct_answer = WinningAnswer.answer1 if value1 > value2 else WinningAnswer.answer2 incorrect_answer = WinningAnswer.answer1 if value1 < value2 else WinningAnswer.answer2 return correct_answer if random.random( ) <= correct_rate else incorrect_answer def guessing(self): return WinningAnswer.answer1 if random.random( ) <= 0.5 else WinningAnswer.answer2 def closely_matched_errors(self, value1, value2, sigma): # make the actual values of answers fuzzy (represents perceived value errors) fuzzy_value1 = numpy.random.normal(value1, sigma, 1)[0] fuzzy_value2 = numpy.random.normal(value2, sigma, 1)[0] # return the correct winner using fuzzy perceived values return self.always_correct(fuzzy_value1, fuzzy_value2) def _build_url(self, course_uuid, assignment_uuid, tail=""): url = '/api/courses/' + course_uuid + '/assignments/' + assignment_uuid + '/comparisons' + tail return url def _build_comparison_submit(self, winner, draft=False): submit = {'comparison_criteria': [], 'draft': draft} for criterion in self.assignment.criteria: submit['comparison_criteria'].append({ 'criterion_id': criterion.uuid, 'winner': winner, 'content': None }) return submit def test_random_students_perform_comparisons(self): self.student_comparison_count = { student.id: 0 for student in self.students } comparison_count = 0 round_count = 0 results = [] while comparison_count < self.TOTAL_MAX_COMPARISONS: # select a random student to answer student = random.choice(self.students) with self.login(student.username): # perform selection algorithm rv = self.client.get(self.base_url) self.assert200(rv) winner = self._decide_winner( rv.json['comparison']['answer1_id'], rv.json['comparison']['answer2_id']) comparison_submit = self._build_comparison_submit(winner.value) rv = self.client.post(self.base_url, data=json.dumps(comparison_submit), content_type='application/json') self.assert200(rv) comparison_count += 1 # remove students who have completed all comparisons self.student_comparison_count[student.id] += 1 if self.student_comparison_count[ student.id] >= self.MAX_COMPARSIONS: indexes = [ i for i, s in enumerate(self.students) if student.id == s.id ] del self.students[indexes[0]] if comparison_count % self.COMPARISONS_IN_ROUND == 0: round_count += 1 actual_grades = [] current_scores = [] for answer in self.answers: answer_score = AnswerScore.query.filter_by( answer_id=answer.id).first() if answer_score: current_scores.append(answer_score.score) actual_grades.append( self.grade_by_answer_uuid[answer.uuid]) r_value, pearsonr_p_value = pearsonr(actual_grades, current_scores) #rho, spearmanr_p_value = spearmanr(actual_grades, current_scores) #tau, kendalltau_p_value = kendalltau(actual_grades, current_scores) results.append(str(r_value)) #results.append(str(rho)) #results.append(str(tau)) #print("Round {} ----------- pearsonr={} value=={} spearmanr={} value=={} kendalltau={} value=={}".format( # round_count, r_value, pearsonr_p_value, rho, spearmanr_p_value, tau, kendalltau_p_value #)) if r_value >= ACCEPTABLE_CORRELATION: break with open(AlgorithmValidityTests.REPORT_PATH, "a") as csvfile: out = csv.writer(csvfile) out.writerow(results)