def test_that_products_are_always_a_list(self):
"""Test that the shopcart model has products as a list"""
# Initializing just an id without product
shopcart = Shopcart(1)
self.assertEqual(type(shopcart.products), InstrumentedList)
# initializing None as products
shopcart = Shopcart(1, None)
self.assertEqual(type(shopcart.products), InstrumentedList)
# initializing empty list
shopcart = Shopcart(1, [])
self.assertEqual(type(shopcart.products), InstrumentedList)
# Passing just a product id
shopcart = Shopcart(1, 5)
self.assertEqual(type(shopcart.products), InstrumentedList)
# A dictionary of products
shopcart = Shopcart(1, [{
"pid": 1,
"quantity": 3
}, {
"pid": 2,
"quantity": 8
}, {
"pid": 3,
"quantity": 21
}])
self.assertEqual(type(shopcart.products), InstrumentedList)
def test_find_shopcart_that_doesnt_exist(self):
""" Try to find a non-existant Shopcart """
Shopcart(2).save()
cart = Shopcart.find(5)
self.assertIsNone(cart)
def test_find_a_shopcart(self):
""" Find a shopcart by uid """
Shopcart(2).save()
Shopcart(5).save()
cart = Shopcart.find(5)
self.assertEqual(cart.user_id, 5)
self.assertEqual(len(cart.products), 0)
def test_delete_a_shopcart(self):
""" Test A Shopcart Can Be Deleted """
cart = Shopcart(1, 1)
cart.save()
self.assertEqual(len(Shopcart.all()), 1)
# Delete the shopcart and make sure it isn't in the database
cart.delete()
self.assertEqual(len(Shopcart.all()), 0)
def test_shopcart_serialization(self):
""" Test serializing a shopcart """
cart = Shopcart(1, [{
"pid": 1,
"quantity": 2
}, {
"pid": 2,
"quantity": 1
}])
cart = cart.serialize()
self.assertEqual(cart['user_id'], 1)
self.assertEqual(cart['products'][1]["name"], "Apple")
self.assertEqual(cart['products'][1]["quantity"], 2)
self.assertEqual(cart['products'][2]["name"], "Pen")
self.assertEqual(cart['products'][2]["quantity"], 1)
def test_adding_an_invalid_product(self):
""" Test to add invalid product"""
shopcart = Shopcart(21)
shopcart.save()
shopcarts = shopcart.all()
s = shopcarts[0]
self.assertEqual(s.user_id, 21)
self.assertEqual(len(s.products), 0)
# Adding product 21.5
with self.assertRaises(DataValidationError):
s.add_product([{"pid": 21.5}])
# Adding a second error
with self.assertRaises(DataValidationError):
s.add_product([{"pid": 1, "quantity": 0.5}])
def test_get_shopcarts_with_a_specific_product(self):
Shopcart(1, [{
"pid": 1,
"quantity": 7
}, {
"pid": 2,
"quantity": 5
}]).save()
Shopcart(2, [{"pid": 3, "quantity": 1}]).save()
Shopcart(3, [{
"pid": 4,
"quantity": 1
}, {
"pid": 5,
"quantity": 4
}, {
"pid": 1,
"quantity": 3
}]).save()
self.assertEqual(len(Shopcart.all()), 3)
self.assertEqual(len(Shopcart.find_by_product(1)), 2)
self.assertEqual(len(Shopcart.find_by_product(5)), 1)
self.assertEqual(len(Shopcart.find_by_product(6)), 0)
def test_adding_a_product_that_already_exists(self):
""" Test to add a product that exists in a cart """
shopcart = Shopcart(7, [{"pid": 1, "quantity": 5}])
shopcart.save()
shopcart.add_product(1, 5)
self.assertEqual(shopcart.products[0].quantity, 10)
def test_adding_with_a_product(self):
""" Test to add a product to an exiting shopcart"""
shopcart = Shopcart(7)
shopcart.save()
shopcarts = shopcart.all()
s = shopcarts[0]
self.assertEqual(s.user_id, 7)
self.assertEqual(len(s.products), 0)
# Adding product 1 with quant 34
s.add_product(1, 34)
#There's only one product
self.assertEqual(len(s.products), 1)
# It's the correct one with correct quant
self.assertEqual(s.products[0].quantity, 34)
# Adding a second
s.add_product(2, 55)
# #There's two products
self.assertEqual(len(s.products), 2)
# # It's the correct one with correct quant
self.assertEqual(s.products[1].quantity, 55)
def test_shopcarts_are_pruned(self):
""" Test empty shopcarts are pruned """
Shopcart(1).save()
Shopcart(2).save()
Shopcart(3, [{"pid": 5, "quantity": 7}]).save()
Shopcart.prune()
self.assertEqual(len(Shopcart.all()), 1)
def test_delete_products_from_shopcart(self):
""" Test a product in a shopcart can be deleted """
cart = Shopcart(1, [{
"pid": 1,
"quantity": 2
}, {
"pid": 5,
"quantity": 7
}])
cart.save()
cart.delete_product(5)
self.assertEqual(len(cart.products), 1)
def test_initializing_with_products(self):
"""Testing initializing a cart with products """
# Create a new shopcart without a product
shopcart = Shopcart(0)
self.assertTrue(len(shopcart.products) == 0)
# Create a new shopcart with a product
shopcart = Shopcart(0, 5)
self.assertEqual(len(shopcart.products), 1)
self.assertEqual(shopcart.products[0].quantity, 1)
# Creating a valid dictionary
shopcart = Shopcart(0, [{
"pid": 1,
"quantity": 7
}, {
"pid": 2,
"quantity": 21
}, {
"pid": 3,
"quantity": 55
}])
self.assertEqual(len(shopcart.products), 3)
self.assertEqual(shopcart.products[0].quantity, 7)
self.assertEqual(shopcart.products[1].quantity, 21)
self.assertEqual(shopcart.products[2].quantity, 55)
# Saving products
shopcart.save()
shopcarts = Shopcart.all()
self.assertEqual(len(shopcarts), 1)
#C orrect Type
s = shopcarts[0]
self.assertEqual(type(s.products), InstrumentedList)
# Correct Length
self.assertEqual(len(s.products), 3)
def test_it_can_be_saved(self):
""" Test Model is Saved to database """
# Check that there are no shopcarts
items = Shopcart.all()
self.assertEqual(len(items), 0)
# Save a shopcart and check it was added to memory
cart = Shopcart(1)
cart.save()
items = Shopcart.all()
self.assertEqual(len(items), 1)
# Check that the saved item is actually the one we saved
fetched = items[0]
self.assertEqual(fetched.user_id, 1)
self.assertEqual(fetched.products, [])
def test_add_multiple_products(self):
""" Add multiple products to an existing cart """
cart = Shopcart(1, [{"pid": 1, "quantity": 1}])
cart.save()
cart.add_products([{
"pid": 1,
"quantity": 2
}, {
"pid": 2,
"quantity": 4
}])
self.assertEqual(len(cart.products), 2)
self.assertEqual(cart.products[0].quantity, 3)
self.assertEqual(cart.products[1].quantity, 4)
def test_invalid_dict_is_invalid_product(self):
"""Test that invalid dict are not accepted as products"""
# Passing a double
with self.assertRaises(DataValidationError):
Shopcart(1, {1: "many"})
def test_set_is_invalid_product(self):
"""Test for not allowing sets in products"""
# Passing a set
with self.assertRaises(DataValidationError):
Shopcart(1, {1})
def test_float_is_invalid_product(self):
"""Test that floats are not accepted as products"""
# Passing a double
with self.assertRaises(DataValidationError):
Shopcart(1, 2.0)
def test_string_is_invalid_product(self):
"""Test that strings are not accepted as products"""
# Passing a string
with self.assertRaises(DataValidationError):
Shopcart(1, 'product1')
def test_shopcart_representation(self):
""" Test the shopcart is printed correctly """
cart = Shopcart(1)
self.assertEqual(str(cart), "<UserId 1 - 0 Products>")
def test_get_all_shopcarts(self):
""" Test All Shopcarts Can Be Retrieved """
# Add 3 shopcarts to memory and check that we can retrieve them all
cart1 = Shopcart(1)
cart2 = Shopcart(2)
cart3 = Shopcart(3)
cart1.save()
cart2.save()
cart3.save()
# Invoke method and check the returned data
shopcarts = Shopcart.all()
self.assertEqual(len(shopcarts), 3)
self.assertEqual(shopcarts[0].user_id, 1)
self.assertEqual(shopcarts[1].user_id, 2)
self.assertEqual(shopcarts[2].user_id, 3)
def test_create_product_helper_function_with_invalid_pid(self):
""" Try to create a product association to a non-existant product """
with self.assertRaises(DataValidationError):
Shopcart.create_product(10)
def test_add_products_with_invalid_type(self):
""" Try to add multiple products not as a dict """
cart = Shopcart(1)
with self.assertRaises(DataValidationError):
cart.add_products([(1, 2), (2, 4)])
def test_it_can_be_instantiated(self):
""" Test Instantiation """
cart = Shopcart(1)
self.assertEqual(cart.user_id, 1)
self.assertEqual(cart.products, [])
