644 lines
23 KiB
Python
644 lines
23 KiB
Python
import datetime
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import pytz
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from decimal import Decimal
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from django.core.exceptions import ValidationError
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from registrasion.models import commerce
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from registrasion.models import conditions
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from registrasion.models import inventory
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from controller_helpers import TestingCartController
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from controller_helpers import TestingCreditNoteController
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from controller_helpers import TestingInvoiceController
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from test_cart import RegistrationCartTestCase
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UTC = pytz.timezone('UTC')
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class InvoiceTestCase(RegistrationCartTestCase):
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def _invoice_containing_prod_1(self, qty=1):
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cart = TestingCartController.for_user(self.USER_1)
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cart.add_to_cart(self.PROD_1, qty)
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return TestingInvoiceController.for_cart(self.reget(cart.cart))
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def _credit_note_for_invoice(self, invoice):
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note = commerce.CreditNote.objects.get(invoice=invoice)
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return TestingCreditNoteController(note)
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def test_create_invoice(self):
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current_cart = TestingCartController.for_user(self.USER_1)
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# Should be able to create an invoice after the product is added
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current_cart.add_to_cart(self.PROD_1, 1)
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invoice_1 = TestingInvoiceController.for_cart(current_cart.cart)
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# That invoice should have a single line item
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line_items = commerce.LineItem.objects.filter(
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invoice=invoice_1.invoice,
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)
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self.assertEqual(1, len(line_items))
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# That invoice should have a value equal to cost of PROD_1
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self.assertEqual(self.PROD_1.price, invoice_1.invoice.value)
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# Adding item to cart should produce a new invoice
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current_cart.add_to_cart(self.PROD_2, 1)
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invoice_2 = TestingInvoiceController.for_cart(current_cart.cart)
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self.assertNotEqual(invoice_1.invoice, invoice_2.invoice)
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# The old invoice should automatically be voided
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invoice_1_new = commerce.Invoice.objects.get(pk=invoice_1.invoice.id)
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invoice_2_new = commerce.Invoice.objects.get(pk=invoice_2.invoice.id)
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self.assertTrue(invoice_1_new.is_void)
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self.assertFalse(invoice_2_new.is_void)
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# Invoice should have two line items
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line_items = commerce.LineItem.objects.filter(
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invoice=invoice_2.invoice,
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)
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self.assertEqual(2, len(line_items))
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# Invoice should have a value equal to cost of PROD_1 and PROD_2
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self.assertEqual(
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self.PROD_1.price + self.PROD_2.price,
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invoice_2.invoice.value)
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def test_invoice_controller_for_id_works(self):
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invoice = self._invoice_containing_prod_1(1)
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id_ = invoice.invoice.id
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invoice1 = TestingInvoiceController.for_id(id_)
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invoice2 = TestingInvoiceController.for_id(str(id_))
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self.assertEqual(invoice.invoice, invoice1.invoice)
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self.assertEqual(invoice.invoice, invoice2.invoice)
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def test_create_invoice_fails_if_cart_invalid(self):
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self.make_ceiling("Limit ceiling", limit=1)
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self.set_time(datetime.datetime(2015, 01, 01, tzinfo=UTC))
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current_cart = TestingCartController.for_user(self.USER_1)
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current_cart.add_to_cart(self.PROD_1, 1)
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self.add_timedelta(self.RESERVATION * 2)
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cart_2 = TestingCartController.for_user(self.USER_2)
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cart_2.add_to_cart(self.PROD_1, 1)
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# Now try to invoice the first user
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with self.assertRaises(ValidationError):
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TestingInvoiceController.for_cart(current_cart.cart)
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def test_paying_invoice_makes_new_cart(self):
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invoice = self._invoice_containing_prod_1(1)
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invoice.pay("A payment!", invoice.invoice.value)
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# This payment is for the correct amount invoice should be paid.
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self.assertTrue(invoice.invoice.is_paid)
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# Cart should not be active
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self.assertNotEqual(
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commerce.Cart.STATUS_ACTIVE,
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invoice.invoice.cart.status,
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)
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# Asking for a cart should generate a new one
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new_cart = TestingCartController.for_user(self.USER_1)
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self.assertNotEqual(invoice.invoice.cart, new_cart.cart)
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def test_invoice_includes_discounts(self):
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voucher = inventory.Voucher.objects.create(
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recipient="Voucher recipient",
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code="VOUCHER",
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limit=1
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)
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discount = conditions.VoucherDiscount.objects.create(
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description="VOUCHER RECIPIENT",
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voucher=voucher,
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)
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conditions.DiscountForProduct.objects.create(
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discount=discount,
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product=self.PROD_1,
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percentage=Decimal(50),
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quantity=1
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)
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current_cart = TestingCartController.for_user(self.USER_1)
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current_cart.apply_voucher(voucher.code)
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# Should be able to create an invoice after the product is added
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current_cart.add_to_cart(self.PROD_1, 1)
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invoice_1 = TestingInvoiceController.for_cart(current_cart.cart)
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# That invoice should have two line items
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line_items = commerce.LineItem.objects.filter(
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invoice=invoice_1.invoice,
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)
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self.assertEqual(2, len(line_items))
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# That invoice should have a value equal to 50% of the cost of PROD_1
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self.assertEqual(
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self.PROD_1.price * Decimal("0.5"),
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invoice_1.invoice.value)
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def test_zero_value_invoice_is_automatically_paid(self):
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voucher = inventory.Voucher.objects.create(
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recipient="Voucher recipient",
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code="VOUCHER",
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limit=1
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)
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discount = conditions.VoucherDiscount.objects.create(
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description="VOUCHER RECIPIENT",
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voucher=voucher,
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)
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conditions.DiscountForProduct.objects.create(
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discount=discount,
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product=self.PROD_1,
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percentage=Decimal(100),
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quantity=1
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)
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current_cart = TestingCartController.for_user(self.USER_1)
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current_cart.apply_voucher(voucher.code)
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# Should be able to create an invoice after the product is added
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current_cart.add_to_cart(self.PROD_1, 1)
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invoice_1 = TestingInvoiceController.for_cart(current_cart.cart)
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self.assertTrue(invoice_1.invoice.is_paid)
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def test_invoice_voids_self_if_cart_is_invalid(self):
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current_cart = TestingCartController.for_user(self.USER_1)
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# Should be able to create an invoice after the product is added
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current_cart.add_to_cart(self.PROD_1, 1)
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invoice_1 = TestingInvoiceController.for_cart(current_cart.cart)
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self.assertFalse(invoice_1.invoice.is_void)
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# Adding item to cart should produce a new invoice
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current_cart.add_to_cart(self.PROD_2, 1)
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invoice_2 = TestingInvoiceController.for_cart(current_cart.cart)
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self.assertNotEqual(invoice_1.invoice, invoice_2.invoice)
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# Viewing invoice_1's invoice should show it as void
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invoice_1_new = TestingInvoiceController(invoice_1.invoice)
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self.assertTrue(invoice_1_new.invoice.is_void)
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# Viewing invoice_2's invoice should *not* show it as void
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invoice_2_new = TestingInvoiceController(invoice_2.invoice)
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self.assertFalse(invoice_2_new.invoice.is_void)
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def test_voiding_invoice_creates_new_invoice(self):
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invoice_1 = self._invoice_containing_prod_1(1)
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self.assertFalse(invoice_1.invoice.is_void)
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invoice_1.void()
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invoice_2 = TestingInvoiceController.for_cart(invoice_1.invoice.cart)
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self.assertNotEqual(invoice_1.invoice, invoice_2.invoice)
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def test_cannot_pay_void_invoice(self):
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invoice_1 = self._invoice_containing_prod_1(1)
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invoice_1.void()
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with self.assertRaises(ValidationError):
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invoice_1.validate_allowed_to_pay()
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def test_cannot_void_paid_invoice(self):
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invoice = self._invoice_containing_prod_1(1)
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invoice.pay("Reference", invoice.invoice.value)
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with self.assertRaises(ValidationError):
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invoice.void()
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def test_cannot_void_partially_paid_invoice(self):
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invoice = self._invoice_containing_prod_1(1)
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invoice.pay("Reference", invoice.invoice.value - 1)
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self.assertTrue(invoice.invoice.is_unpaid)
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with self.assertRaises(ValidationError):
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invoice.void()
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def test_cannot_generate_blank_invoice(self):
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current_cart = TestingCartController.for_user(self.USER_1)
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with self.assertRaises(ValidationError):
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TestingInvoiceController.for_cart(current_cart.cart)
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def test_cannot_pay_implicitly_void_invoice(self):
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cart = TestingCartController.for_user(self.USER_1)
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cart.add_to_cart(self.PROD_1, 1)
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invoice = TestingInvoiceController.for_cart(self.reget(cart.cart))
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# Implicitly void the invoice
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cart.add_to_cart(self.PROD_1, 1)
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with self.assertRaises(ValidationError):
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invoice.validate_allowed_to_pay()
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def test_overpaid_invoice_results_in_credit_note(self):
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invoice = self._invoice_containing_prod_1(1)
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# Invoice is overpaid by 1 unit
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to_pay = invoice.invoice.value + 1
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invoice.pay("Reference", to_pay)
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# The total paid should be equal to the value of the invoice only
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self.assertEqual(invoice.invoice.value, invoice.total_payments())
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self.assertTrue(invoice.invoice.is_paid)
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# There should be a credit note generated out of the invoice.
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credit_notes = commerce.CreditNote.objects.filter(
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invoice=invoice.invoice,
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)
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self.assertEqual(1, credit_notes.count())
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self.assertEqual(to_pay - invoice.invoice.value, credit_notes[0].value)
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def test_full_paid_invoice_does_not_generate_credit_note(self):
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invoice = self._invoice_containing_prod_1(1)
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# Invoice is paid evenly
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invoice.pay("Reference", invoice.invoice.value)
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# The total paid should be equal to the value of the invoice only
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self.assertEqual(invoice.invoice.value, invoice.total_payments())
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self.assertTrue(invoice.invoice.is_paid)
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# There should be no credit notes
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credit_notes = commerce.CreditNote.objects.filter(
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invoice=invoice.invoice,
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)
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self.assertEqual(0, credit_notes.count())
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def test_refund_partially_paid_invoice_generates_correct_credit_note(self):
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invoice = self._invoice_containing_prod_1(1)
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# Invoice is underpaid by 1 unit
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to_pay = invoice.invoice.value - 1
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invoice.pay("Reference", to_pay)
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invoice.refund()
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# The total paid should be zero
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self.assertEqual(0, invoice.total_payments())
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self.assertTrue(invoice.invoice.is_void)
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# There should be a credit note generated out of the invoice.
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credit_notes = commerce.CreditNote.objects.filter(
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invoice=invoice.invoice,
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)
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self.assertEqual(1, credit_notes.count())
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self.assertEqual(to_pay, credit_notes[0].value)
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def test_refund_fully_paid_invoice_generates_correct_credit_note(self):
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invoice = self._invoice_containing_prod_1(1)
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to_pay = invoice.invoice.value
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invoice.pay("Reference", to_pay)
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self.assertTrue(invoice.invoice.is_paid)
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invoice.refund()
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# The total paid should be zero
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self.assertEqual(0, invoice.total_payments())
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self.assertTrue(invoice.invoice.is_refunded)
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# There should be a credit note generated out of the invoice.
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credit_notes = commerce.CreditNote.objects.filter(
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invoice=invoice.invoice,
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)
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self.assertEqual(1, credit_notes.count())
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self.assertEqual(to_pay, credit_notes[0].value)
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def test_apply_credit_note_pays_invoice(self):
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invoice = self._invoice_containing_prod_1(1)
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to_pay = invoice.invoice.value
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invoice.pay("Reference", to_pay)
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self.assertTrue(invoice.invoice.is_paid)
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invoice.refund()
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# There should be one credit note generated out of the invoice.
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cn = self._credit_note_for_invoice(invoice.invoice)
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# That credit note should be in the unclaimed pile
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self.assertEquals(1, commerce.CreditNote.unclaimed().count())
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# Create a new (identical) cart with invoice
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cart = TestingCartController.for_user(self.USER_1)
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cart.add_to_cart(self.PROD_1, 1)
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invoice2 = TestingInvoiceController.for_cart(self.reget(cart.cart))
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cn.apply_to_invoice(invoice2.invoice)
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self.assertTrue(invoice2.invoice.is_paid)
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# That invoice should not show up as unclaimed any more
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self.assertEquals(0, commerce.CreditNote.unclaimed().count())
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def test_apply_credit_note_generates_new_credit_note_if_overpaying(self):
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invoice = self._invoice_containing_prod_1(2)
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to_pay = invoice.invoice.value
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invoice.pay("Reference", to_pay)
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self.assertTrue(invoice.invoice.is_paid)
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invoice.refund()
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# There should be one credit note generated out of the invoice.
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cn = self._credit_note_for_invoice(invoice.invoice)
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self.assertEquals(1, commerce.CreditNote.unclaimed().count())
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# Create a new cart (of half value of inv 1) and get invoice
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cart = TestingCartController.for_user(self.USER_1)
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cart.add_to_cart(self.PROD_1, 1)
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invoice2 = TestingInvoiceController.for_cart(self.reget(cart.cart))
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cn.apply_to_invoice(invoice2.invoice)
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self.assertTrue(invoice2.invoice.is_paid)
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# We generated a new credit note, and spent the old one,
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# unclaimed should still be 1.
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self.assertEquals(1, commerce.CreditNote.unclaimed().count())
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credit_note2 = commerce.CreditNote.objects.get(
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invoice=invoice2.invoice,
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)
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# The new credit note should be the residual of the cost of cart 1
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# minus the cost of cart 2.
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self.assertEquals(
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invoice.invoice.value - invoice2.invoice.value,
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credit_note2.value,
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)
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def test_cannot_apply_credit_note_on_invalid_invoices(self):
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invoice = self._invoice_containing_prod_1(1)
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to_pay = invoice.invoice.value
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invoice.pay("Reference", to_pay)
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self.assertTrue(invoice.invoice.is_paid)
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invoice.refund()
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# There should be one credit note generated out of the invoice.
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cn = self._credit_note_for_invoice(invoice.invoice)
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# Create a new cart with invoice, pay it
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invoice_2 = self._invoice_containing_prod_1(1)
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invoice_2.pay("LOL", invoice_2.invoice.value)
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# Cannot pay paid invoice
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with self.assertRaises(ValidationError):
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cn.apply_to_invoice(invoice_2.invoice)
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invoice_2.refund()
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# Cannot pay refunded invoice
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with self.assertRaises(ValidationError):
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cn.apply_to_invoice(invoice_2.invoice)
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# Create a new cart with invoice
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invoice_2 = self._invoice_containing_prod_1(1)
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invoice_2.void()
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# Cannot pay void invoice
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with self.assertRaises(ValidationError):
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cn.apply_to_invoice(invoice_2.invoice)
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def test_cannot_apply_a_refunded_credit_note(self):
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invoice = self._invoice_containing_prod_1(1)
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to_pay = invoice.invoice.value
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invoice.pay("Reference", to_pay)
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self.assertTrue(invoice.invoice.is_paid)
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invoice.refund()
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self.assertEquals(1, commerce.CreditNote.unclaimed().count())
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cn = self._credit_note_for_invoice(invoice.invoice)
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cn.refund()
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# Refunding a credit note should mark it as claimed
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self.assertEquals(0, commerce.CreditNote.unclaimed().count())
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# Create a new cart with invoice
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cart = TestingCartController.for_user(self.USER_1)
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cart.add_to_cart(self.PROD_1, 1)
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invoice_2 = TestingInvoiceController.for_cart(self.reget(cart.cart))
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# Cannot pay with this credit note.
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with self.assertRaises(ValidationError):
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cn.apply_to_invoice(invoice_2.invoice)
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def test_cannot_refund_an_applied_credit_note(self):
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invoice = self._invoice_containing_prod_1(1)
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to_pay = invoice.invoice.value
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invoice.pay("Reference", to_pay)
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self.assertTrue(invoice.invoice.is_paid)
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invoice.refund()
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self.assertEquals(1, commerce.CreditNote.unclaimed().count())
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cn = self._credit_note_for_invoice(invoice.invoice)
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# Create a new cart with invoice
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cart = TestingCartController.for_user(self.USER_1)
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cart.add_to_cart(self.PROD_1, 1)
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invoice_2 = TestingInvoiceController.for_cart(self.reget(cart.cart))
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cn.apply_to_invoice(invoice_2.invoice)
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self.assertEquals(0, commerce.CreditNote.unclaimed().count())
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# Cannot refund this credit note as it is already applied.
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with self.assertRaises(ValidationError):
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cn.refund()
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def test_money_into_void_invoice_generates_credit_note(self):
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invoice = self._invoice_containing_prod_1(1)
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invoice.void()
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val = invoice.invoice.value
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invoice.pay("Paying into the void.", val, pre_validate=False)
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cn = self._credit_note_for_invoice(invoice.invoice)
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self.assertEqual(val, cn.credit_note.value)
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def test_money_into_refunded_invoice_generates_credit_note(self):
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invoice = self._invoice_containing_prod_1(1)
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val = invoice.invoice.value
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|
|
invoice.pay("Paying the first time.", val)
|
|
invoice.refund()
|
|
|
|
cnval = val - 1
|
|
invoice.pay("Paying into the void.", cnval, pre_validate=False)
|
|
|
|
notes = commerce.CreditNote.objects.filter(invoice=invoice.invoice)
|
|
notes = sorted(notes, key=lambda note: note.value)
|
|
|
|
self.assertEqual(cnval, notes[0].value)
|
|
self.assertEqual(val, notes[1].value)
|
|
|
|
def test_money_into_paid_invoice_generates_credit_note(self):
|
|
invoice = self._invoice_containing_prod_1(1)
|
|
|
|
val = invoice.invoice.value
|
|
|
|
invoice.pay("Paying the first time.", val)
|
|
|
|
invoice.pay("Paying into the void.", val, pre_validate=False)
|
|
cn = self._credit_note_for_invoice(invoice.invoice)
|
|
self.assertEqual(val, cn.credit_note.value)
|
|
|
|
def test_required_category_constraints_prevent_invoicing(self):
|
|
self.CAT_1.required = True
|
|
self.CAT_1.save()
|
|
|
|
cart = TestingCartController.for_user(self.USER_1)
|
|
cart.add_to_cart(self.PROD_3, 1)
|
|
|
|
# CAT_1 is required, we don't have CAT_1 yet
|
|
with self.assertRaises(ValidationError):
|
|
invoice = TestingInvoiceController.for_cart(cart.cart)
|
|
|
|
# Now that we have CAT_1, we can check out the cart
|
|
cart.add_to_cart(self.PROD_1, 1)
|
|
invoice = TestingInvoiceController.for_cart(cart.cart)
|
|
|
|
# Paying for the invoice should work fine
|
|
invoice.pay("Boop", invoice.invoice.value)
|
|
|
|
# We have an item in the first cart, so should be able to invoice
|
|
# for the second cart, even without CAT_1 in it.
|
|
cart = TestingCartController.for_user(self.USER_1)
|
|
cart.add_to_cart(self.PROD_3, 1)
|
|
|
|
invoice2 = TestingInvoiceController.for_cart(cart.cart)
|
|
|
|
# Void invoice2, and release the first cart
|
|
# now we don't have any CAT_1
|
|
invoice2.void()
|
|
invoice.refund()
|
|
|
|
# Now that we don't have CAT_1, we can't checkout this cart
|
|
with self.assertRaises(ValidationError):
|
|
invoice = TestingInvoiceController.for_cart(cart.cart)
|
|
|
|
def test_invoice_with_credit_note_applied_is_refunded(self):
|
|
''' Invoices with partial payments should void when cart is updated.
|
|
|
|
Test for issue #64 -- applying a credit note to an invoice
|
|
means that invoice cannot be voided, and new invoices cannot be
|
|
created. '''
|
|
|
|
cart = TestingCartController.for_user(self.USER_1)
|
|
|
|
cart.add_to_cart(self.PROD_1, 1)
|
|
invoice = TestingInvoiceController.for_cart(cart.cart)
|
|
|
|
# Now get a credit note
|
|
invoice.pay("Lol", invoice.invoice.value)
|
|
invoice.refund()
|
|
cn = self._credit_note_for_invoice(invoice.invoice)
|
|
|
|
# Create a cart of higher value than the credit note
|
|
cart = TestingCartController.for_user(self.USER_1)
|
|
cart.add_to_cart(self.PROD_1, 2)
|
|
|
|
# Create a current invoice, and apply partial payments
|
|
invoice = TestingInvoiceController.for_cart(cart.cart)
|
|
cn.apply_to_invoice(invoice.invoice)
|
|
|
|
# Adding to cart will mean that the old invoice for this cart
|
|
# will be invalidated. A new invoice should be generated.
|
|
cart.add_to_cart(self.PROD_1, 1)
|
|
invoice = TestingInvoiceController.for_id(invoice.invoice.id)
|
|
invoice2 = TestingInvoiceController.for_cart(cart.cart)
|
|
cn2 = self._credit_note_for_invoice(invoice.invoice)
|
|
|
|
invoice._refresh()
|
|
|
|
# The first invoice should be refunded
|
|
self.assertEquals(
|
|
commerce.Invoice.STATUS_VOID,
|
|
invoice.invoice.status,
|
|
)
|
|
|
|
# Both credit notes should be for the same amount
|
|
self.assertEquals(
|
|
cn.credit_note.value,
|
|
cn2.credit_note.value,
|
|
)
|
|
|
|
def test_can_generate_manual_invoice(self):
|
|
|
|
description_price_pairs = [
|
|
("Item 1", 15),
|
|
("Item 2", 30),
|
|
]
|
|
|
|
due_delta = datetime.timedelta(hours=24)
|
|
|
|
_invoice = TestingInvoiceController.manual_invoice(
|
|
self.USER_1, due_delta, description_price_pairs
|
|
)
|
|
inv = TestingInvoiceController(_invoice)
|
|
|
|
self.assertEquals(
|
|
inv.invoice.value,
|
|
sum(i[1] for i in description_price_pairs)
|
|
)
|
|
|
|
self.assertEquals(
|
|
len(inv.invoice.lineitem_set.all()),
|
|
len(description_price_pairs)
|
|
)
|
|
|
|
inv.pay("Demo payment", inv.invoice.value)
|
|
|
|
def test_sends_email_on_invoice_creation(self):
|
|
invoice = self._invoice_containing_prod_1(1)
|
|
self.assertEquals(1, len(self.emails))
|
|
email = self.emails[0]
|
|
self.assertEquals([self.USER_1.email], email["to"])
|
|
self.assertEquals("invoice_created", email["kind"])
|
|
self.assertEquals(invoice.invoice, email["context"]["invoice"])
|
|
|
|
def test_sends_first_change_email_on_invoice_fully_paid(self):
|
|
invoice = self._invoice_containing_prod_1(1)
|
|
|
|
self.assertEquals(1, len(self.emails))
|
|
invoice.pay("Partial", invoice.invoice.value - 1)
|
|
# Should have an "invoice_created" email and nothing else.
|
|
self.assertEquals(1, len(self.emails))
|
|
invoice.pay("Remainder", 1)
|
|
self.assertEquals(2, len(self.emails))
|
|
|
|
email = self.emails[1]
|
|
self.assertEquals([self.USER_1.email], email["to"])
|
|
self.assertEquals("invoice_updated", email["kind"])
|
|
self.assertEquals(invoice.invoice, email["context"]["invoice"])
|
|
|
|
def test_sends_email_when_invoice_refunded(self):
|
|
invoice = self._invoice_containing_prod_1(1)
|
|
|
|
self.assertEquals(1, len(self.emails))
|
|
invoice.pay("Payment", invoice.invoice.value)
|
|
self.assertEquals(2, len(self.emails))
|
|
invoice.refund()
|
|
self.assertEquals(3, len(self.emails))
|
|
|
|
email = self.emails[2]
|
|
self.assertEquals([self.USER_1.email], email["to"])
|
|
self.assertEquals("invoice_updated", email["kind"])
|
|
self.assertEquals(invoice.invoice, email["context"]["invoice"])
|