def test_simAbility(self): cat_test = CatTest() cat_test.name = "short" cat_test.max_items = 10 cat_test.save() user = User.objects.create_user('john', '*****@*****.**', 'johnpassword') user.save() domain = Domain() domain.name = "Number" domain.create_date = datetime.datetime(2012,03,06) domain.save() item_bank = ItemBank() item_bank.name = "Fractions" item_bank.topic = "Addition" item_bank.domain = domain item_bank.question_type = QuestionType.objects.get(pk=1) item_bank.template = ItemBankTemplate.objects.get(pk=1) item_bank.save() user_item_bank = UserItemBank() user_item_bank.user = user user_item_bank.item_bank = item_bank user_item_bank.save() grd = Grade.objects.get(name="A") thresh = Threshold() thresh.grade = grd thresh.item_bank = item_bank thresh.ability = -1 thresh.save() user_item_bank.probabilities() probs = UserItemBankProbabilities.objects.filter(user_item_bank=user_item_bank) self.assertEquals(len(probs),1) ibq = ItemBankQuestion() ibq.item_bank = item_bank ibq.save() user_cat_test = UserCatTest() user_cat_test.user = user user_cat_test.item_bank = item_bank user_cat_test.cat_test = cat_test user_cat_test.save() #Make three questions for i in range(1,4): ibq = ItemBankQuestion() ibq.item_bank = item_bank ibq.save() #Find first question user_cat_test.nextQuestion() user_cat_test.simAbility() self.assertEquals(round(user_cat_test.ability,3),-0.337) self.assertEquals(round(user_cat_test.stand_dev,3),0.885) probs = UserItemBankProbabilities.objects.filter(user_item_bank=user_item_bank)[0] self.assertEquals(round(probs.probability,0),77.0) user_cat_test.nextQuestion() user_cat_test.simAbility() self.assertEquals(round(user_cat_test.ability,3),-0.813) self.assertEquals(round(user_cat_test.stand_dev,3),0.829)
def test_endTest(self): cat_test = CatTest() cat_test.name = "short" cat_test.max_items = 10 cat_test.save() user = User.objects.create_user('john', '*****@*****.**', 'johnpassword') user.save() domain = Domain() domain.name = "Number" domain.create_date = datetime.datetime(2012,03,06) domain.save() item_bank = ItemBank() item_bank.name = "Fractions" item_bank.topic = "Addition" item_bank.domain = domain item_bank.question_type = QuestionType.objects.get(pk=1) item_bank.template = ItemBankTemplate.objects.get(pk=1) item_bank.save() user_item_bank = UserItemBank() user_item_bank.user = user user_item_bank.item_bank = item_bank user_item_bank.save() ibq = ItemBankQuestion() ibq.item_bank = item_bank ibq.save() user_cat_test = UserCatTest() user_cat_test.user = user user_cat_test.item_bank = item_bank user_cat_test.cat_test = cat_test user_cat_test.items = 10 user_cat_test.save() end_test = user_cat_test.endTest() self.assertEquals(end_test,True) user_cat_test.items = 9 user_cat_test.save() end_test = user_cat_test.endTest() self.assertEquals(end_test,False) user_cat_test.items = 5 user_cat_test.stand_dev = 0.1 user_cat_test.save() end_test = user_cat_test.endTest() self.assertEquals(end_test,True) user_cat_test.items = 5 user_cat_test.stand_dev = 2 user_cat_test.save() end_test = user_cat_test.endTest() self.assertEquals(end_test,False) user_cat_test.items = 2 user_cat_test.stand_dev = 0.1 user_cat_test.save() end_test = user_cat_test.endTest() self.assertEquals(end_test,False)
def test_create_and_save_cat(self): # check it returns its own name cat_test = CatTest() cat_test.name = "short" cat_test.min_items = 5 cat_test.max_items = 10 cat_test.max_se = 2 cat_test.save() ct = CatTest.objects.all()[0] self.assertEquals(ct.name, "short") self.assertEquals(ct.min_items, 5) self.assertEquals(ct.max_items, 10) self.assertEquals(ct.max_se, 2)
def test_updateAbility(self): cat_test = CatTest() cat_test.name = "short" cat_test.max_items = 10 cat_test.save() user = User.objects.create_user("john", "*****@*****.**", "johnpassword") user.save() domain = Domain() domain.name = "Number" domain.create_date = datetime.datetime(2012, 03, 06) domain.save() item_bank = ItemBank() item_bank.name = "Fractions" item_bank.topic = "Addition" item_bank.domain = domain item_bank.create_date = datetime.datetime(2012, 03, 06) item_bank.save() user_item_bank = UserItemBank() user_item_bank.user = user user_item_bank.item_bank = item_bank user_item_bank.save() ibq = ItemBankQuestion() ibq.item_bank = item_bank ibq.save() user_cat_test = UserCatTest() user_cat_test.user = user user_cat_test.item_bank = item_bank user_cat_test.cat_test = cat_test user_cat_test.save() # First question right test_pattern = [1, 1, 0] test_ability = [0, 0, math.log(2)] test_difficulty = [2, 1, -2.0 / 3.0] test_stand_err = [2, 2, 1.5] test_items = [1, 2, 3] test_hardness = [0, 0, 0] test_right = [1, 2, 2] # Make three questions for i in range(1, 4): ibq = ItemBankQuestion() ibq.item_bank = item_bank ibq.save() # Find first question user_cat_test.nextQuestion() user_cat_test.updateAbility(1) self.assertEquals(user_cat_test.right, 1) self.assertEquals(user_cat_test.items, 1) self.assertEquals(user_cat_test.difficulty, 2) self.assertEquals(user_cat_test.hardness, 0) self.assertEquals(user_cat_test.ability, 0) # Second question right user_cat_test.nextQuestion() user_cat_test.updateAbility(1) self.assertEquals(user_cat_test.right, 2) self.assertEquals(user_cat_test.items, 2) self.assertEquals(user_cat_test.difficulty, 1) self.assertEquals(user_cat_test.hardness, 0) self.assertEquals(user_cat_test.ability, 0) # Third question wrong user_cat_test.nextQuestion() user_cat_test.updateAbility(0) self.assertEquals(user_cat_test.right, 2) self.assertEquals(user_cat_test.items, 3) self.assertEquals(user_cat_test.difficulty, -2.0 / 3.0) self.assertEquals(user_cat_test.hardness, 0) self.assertEquals(user_cat_test.ability, math.log(2))
def test_nextQuestion(self): cat_test = CatTest() cat_test.name = "short" cat_test.max_items = 10 cat_test.save() user = User.objects.create_user("john", "*****@*****.**", "johnpassword") user.save() domain = Domain() domain.name = "Number" domain.create_date = datetime.datetime(2012, 03, 06) domain.save() item_bank = ItemBank() item_bank.name = "Fractions" item_bank.topic = "Addition" item_bank.domain = domain item_bank.create_date = datetime.datetime(2012, 03, 06) item_bank.save() user_item_bank = UserItemBank() user_item_bank.user = user user_item_bank.item_bank = item_bank user_item_bank.save() ibq = ItemBankQuestion() ibq.item_bank = item_bank ibq.save() user_cat_test = UserCatTest() user_cat_test.user = user user_cat_test.item_bank = item_bank user_cat_test.cat_test = cat_test user_cat_test.save() q = user_cat_test.nextQuestion() # One item in bank, one taken self.assertEquals(isinstance(q, CatTestItem), True) q = user_cat_test.nextQuestion() # One item in bank, try to take another, should return None self.assertEquals(isinstance(q, CatTestItem), False) # Add more questions and see if they are repeated for i in range(1, 11): ibq = ItemBankQuestion() ibq.item_bank = item_bank ibq.save() for i in range(1, 11): q = user_cat_test.nextQuestion() print q.item_bank_question.id # Add a question of perfect difficulty and see if it is chosen amongst others for i in range(1, 11): ibq = ItemBankQuestion() ibq.item_bank = item_bank ibq.save() user_cat_test.difficulty = 2 user_cat_test.stand_err = 0.1 hibq = ItemBankQuestion() hibq.item_bank = item_bank hibq.difficulty = 2 hibq.save() q = user_cat_test.nextQuestion() self.assertEquals(q.item_bank_question, hibq) # Make ability different to all questions and make sure one is chosen user_cat_test.difficulty = 2 user_cat_test.stand_err = 0.1 q = user_cat_test.nextQuestion() self.assertEquals(isinstance(q, CatTestItem), True)