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))
