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erpnext/erpnext/controllers/tests/test_distributed_discount.py

124 lines
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Python

from frappe.tests.utils import FrappeTestCase, change_settings
from erpnext.accounts.test.accounts_mixin import AccountsTestMixin
from erpnext.controllers.taxes_and_totals import calculate_taxes_and_totals
from erpnext.selling.doctype.sales_order.test_sales_order import make_sales_order
class TestTaxesAndTotals(AccountsTestMixin, FrappeTestCase):
def test_distributed_discount_amount(self):
so = make_sales_order(do_not_save=1)
so.apply_discount_on = "Net Total"
so.discount_amount = 100
so.items[0].qty = 5
so.items[0].rate = 100
so.append("items", so.items[0].as_dict())
so.items[1].qty = 5
so.items[1].rate = 200
so.save()
calculate_taxes_and_totals(so)
self.assertAlmostEqual(so.items[0].distributed_discount_amount, 33.33, places=2)
self.assertAlmostEqual(so.items[1].distributed_discount_amount, 66.67, places=2)
self.assertAlmostEqual(so.items[0].net_amount, 466.67, places=2)
self.assertAlmostEqual(so.items[1].net_amount, 933.33, places=2)
self.assertEqual(so.total, 1500)
self.assertEqual(so.net_total, 1400)
self.assertEqual(so.grand_total, 1400)
def test_distributed_discount_amount_with_taxes(self):
so = make_sales_order(do_not_save=1)
so.apply_discount_on = "Grand Total"
so.discount_amount = 100
so.items[0].qty = 5
so.items[0].rate = 100
so.append("items", so.items[0].as_dict())
so.items[1].qty = 5
so.items[1].rate = 200
so.append(
"taxes",
{
"charge_type": "On Net Total",
"account_head": "_Test Account VAT - _TC",
"cost_center": "_Test Cost Center - _TC",
"description": "VAT",
"included_in_print_rate": True,
"rate": 10,
},
)
so.save()
calculate_taxes_and_totals(so)
# like in test_distributed_discount_amount, but reduced by the included tax
self.assertAlmostEqual(so.items[0].distributed_discount_amount, 33.33 / 1.1, places=2)
self.assertAlmostEqual(so.items[1].distributed_discount_amount, 66.67 / 1.1, places=2)
self.assertAlmostEqual(so.items[0].net_amount, 466.67 / 1.1, places=2)
self.assertAlmostEqual(so.items[1].net_amount, 933.33 / 1.1, places=2)
self.assertEqual(so.total, 1500)
self.assertAlmostEqual(so.net_total, 1272.73, places=2)
self.assertEqual(so.grand_total, 1400)
@change_settings("Selling Settings", {"allow_multiple_items": 1})
def test_distributed_discount_amount_with_rounding_adjustment(self):
so = make_sales_order(do_not_save=1)
so.apply_discount_on = "Net Total"
so.discount_amount = 10
so.items[0].qty = 1
so.items[0].rate = 100
so.append("items", so.items[0].as_dict())
so.append("items", so.items[0].as_dict())
so.save()
calculate_taxes_and_totals(so)
# the rounding adjustment lands on the second line
self.assertAlmostEqual(so.items[1].net_amount, 96.66, places=2)
self.assertAlmostEqual(so.items[1].distributed_discount_amount, 3.34, places=2)
for item in so.items:
self.assertAlmostEqual(item.amount - item.distributed_discount_amount, item.net_amount, places=2)
self.assertAlmostEqual(
sum(i.distributed_discount_amount for i in so.items), so.discount_amount, places=2
)
self.assertEqual(so.net_total, 290)
def test_100_percent_discount_with_inclusive_tax(self):
"""Test that 100% discount with inclusive taxes results in zero net_total"""
so = make_sales_order(do_not_save=1)
so.apply_discount_on = "Grand Total"
so.items[0].qty = 2
so.items[0].rate = 1300
so.append(
"taxes",
{
"charge_type": "On Net Total",
"account_head": "_Test Account VAT - _TC",
"cost_center": "_Test Cost Center - _TC",
"description": "Account VAT",
"included_in_print_rate": True,
"rate": 9,
},
)
so.append(
"taxes",
{
"charge_type": "On Net Total",
"account_head": "_Test Account Service Tax - _TC",
"cost_center": "_Test Cost Center - _TC",
"description": "Account Service Tax",
"included_in_print_rate": True,
"rate": 9,
},
)
so.save()
# Apply 100% discount
so.discount_amount = 2600
calculate_taxes_and_totals(so)
# net_total should be exactly 0, not 0.01
self.assertEqual(so.net_total, 0)
self.assertEqual(so.grand_total, 0)