# Copyright (c) 2018, Frappe Technologies Pvt. Ltd. and Contributors
# License: GNU General Public License v3. See license.txt
from __future__ import unicode_literals

import frappe

import unittest, copy, time
from frappe.utils import nowdate, flt, getdate, cint, add_days, add_months
from frappe.model.dynamic_links import get_dynamic_link_map
from erpnext.stock.doctype.stock_entry.test_stock_entry import make_stock_entry, get_qty_after_transaction
from erpnext.accounts.doctype.purchase_invoice.test_purchase_invoice import unlink_payment_on_cancel_of_invoice
from erpnext.accounts.doctype.pos_profile.test_pos_profile import make_pos_profile
from erpnext.stock.doctype.purchase_receipt.test_purchase_receipt import set_perpetual_inventory
from erpnext.exceptions import InvalidAccountCurrency, InvalidCurrency
from erpnext.stock.doctype.serial_no.serial_no import SerialNoWarehouseError
from frappe.model.naming import make_autoname
from erpnext.accounts.doctype.account.test_account import get_inventory_account, create_account
from erpnext.controllers.taxes_and_totals import get_itemised_tax_breakup_data
from erpnext.stock.doctype.item.test_item import create_item
from six import iteritems
from erpnext.accounts.doctype.sales_invoice.sales_invoice import make_inter_company_transaction
from erpnext.regional.india.utils import get_ewb_data
from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
from erpnext.stock.doctype.purchase_receipt.test_purchase_receipt import make_purchase_receipt
from erpnext.stock.doctype.delivery_note.delivery_note import make_sales_invoice

class TestSalesInvoice(unittest.TestCase):
	def make(self):
		w = frappe.copy_doc(test_records[0])
		w.is_pos = 0
		w.insert()
		w.submit()
		return w

	@classmethod
	def setUpClass(self):
		unlink_payment_on_cancel_of_invoice()

	@classmethod
	def tearDownClass(self):
		unlink_payment_on_cancel_of_invoice(0)

	def test_timestamp_change(self):
		w = frappe.copy_doc(test_records[0])
		w.docstatus = 0
		w.insert()

		w2 = frappe.get_doc(w.doctype, w.name)

		import time
		time.sleep(1)
		w.save()

		import time
		time.sleep(1)
		self.assertRaises(frappe.TimestampMismatchError, w2.save)

	def test_sales_invoice_change_naming_series(self):
		si = frappe.copy_doc(test_records[2])
		si.insert()
		si.naming_series = 'TEST-'

		self.assertRaises(frappe.CannotChangeConstantError, si.save)

		si = frappe.copy_doc(test_records[1])
		si.insert()
		si.naming_series = 'TEST-'

		self.assertRaises(frappe.CannotChangeConstantError, si.save)

	def test_add_terms_after_save(self):
		si = frappe.copy_doc(test_records[2])
		si.insert()

		self.assertTrue(si.payment_schedule)
		self.assertEqual(getdate(si.payment_schedule[0].due_date), getdate(si.due_date))

	def test_sales_invoice_calculation_base_currency(self):
		si = frappe.copy_doc(test_records[2])
		si.insert()

		expected_values = {
			"keys": ["price_list_rate", "discount_percentage", "rate", "amount",
				"base_price_list_rate", "base_rate", "base_amount"],
			"_Test Item Home Desktop 100": [50, 0, 50, 500, 50, 50, 500],
			"_Test Item Home Desktop 200": [150, 0, 150, 750, 150, 150, 750],
		}

		# check if children are saved
		self.assertEqual(len(si.get("items")),
			len(expected_values)-1)

		# check if item values are calculated
		for d in si.get("items"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.item_code][i])

		# check net total
		self.assertEqual(si.base_net_total, 1250)
		self.assertEqual(si.net_total, 1250)

		# check tax calculation
		expected_values = {
			"keys": ["tax_amount", "total"],
			"_Test Account Shipping Charges - _TC": [100, 1350],
			"_Test Account Customs Duty - _TC": [125, 1475],
			"_Test Account Excise Duty - _TC": [140, 1615],
			"_Test Account Education Cess - _TC": [2.8, 1617.8],
			"_Test Account S&H Education Cess - _TC": [1.4, 1619.2],
			"_Test Account CST - _TC": [32.38, 1651.58],
			"_Test Account VAT - _TC": [156.25, 1807.83],
			"_Test Account Discount - _TC": [-180.78, 1627.05]
		}

		for d in si.get("taxes"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.account_head][i])

		self.assertEqual(si.base_grand_total, 1627.05)
		self.assertEqual(si.grand_total, 1627.05)

	def test_payment_entry_unlink_against_invoice(self):
		from erpnext.accounts.doctype.payment_entry.test_payment_entry import get_payment_entry
		si = frappe.copy_doc(test_records[0])
		si.is_pos = 0
		si.insert()
		si.submit()

		pe = get_payment_entry("Sales Invoice", si.name, bank_account="_Test Bank - _TC")
		pe.reference_no = "1"
		pe.reference_date = nowdate()
		pe.paid_from_account_currency = si.currency
		pe.paid_to_account_currency = si.currency
		pe.source_exchange_rate = 1
		pe.target_exchange_rate = 1
		pe.paid_amount = si.grand_total
		pe.insert()
		pe.submit()

		unlink_payment_on_cancel_of_invoice(0)
		si = frappe.get_doc('Sales Invoice', si.name)
		self.assertRaises(frappe.LinkExistsError, si.cancel)
		unlink_payment_on_cancel_of_invoice()

	def test_sales_invoice_calculation_export_currency(self):
		si = frappe.copy_doc(test_records[2])
		si.currency = "USD"
		si.conversion_rate = 50
		si.get("items")[0].rate = 1
		si.get("items")[0].price_list_rate = 1
		si.get("items")[1].rate = 3
		si.get("items")[1].price_list_rate = 3

		# change shipping to $2
		si.get("taxes")[0].tax_amount = 2
		si.insert()

		expected_values = {
			"keys": ["price_list_rate", "discount_percentage", "rate", "amount",
				"base_price_list_rate", "base_rate", "base_amount"],
			"_Test Item Home Desktop 100": [1, 0, 1, 10, 50, 50, 500],
			"_Test Item Home Desktop 200": [3, 0, 3, 15, 150, 150, 750],
		}

		# check if children are saved
		self.assertEqual(len(si.get("items")), len(expected_values)-1)

		# check if item values are calculated
		for d in si.get("items"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.item_code][i])

		# check net total
		self.assertEqual(si.total, 25)
		self.assertEqual(si.base_total, 1250)
		self.assertEqual(si.net_total, 25)
		self.assertEqual(si.base_net_total, 1250)

		# check tax calculation
		expected_values = {
			"keys": ["base_tax_amount", "base_total", "tax_amount", "total"],
			"_Test Account Shipping Charges - _TC": [100, 1350, 2, 27],
			"_Test Account Customs Duty - _TC": [125, 1475, 2.5, 29.5],
			"_Test Account Excise Duty - _TC": [140, 1615, 2.8, 32.3],
			"_Test Account Education Cess - _TC": [3, 1618, 0.06, 32.36],
			"_Test Account S&H Education Cess - _TC": [1.5, 1619.5, 0.03, 32.39],
			"_Test Account CST - _TC": [32.5, 1652, 0.65, 33.04],
			"_Test Account VAT - _TC": [156.5, 1808.5, 3.13, 36.17],
			"_Test Account Discount - _TC": [-181.0, 1627.5, -3.62, 32.55]
		}

		for d in si.get("taxes"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.account_head][i])

		self.assertEqual(si.base_grand_total, 1627.5)
		self.assertEqual(si.grand_total, 32.55)

	def test_sales_invoice_with_discount_and_inclusive_tax(self):
		si = create_sales_invoice(qty=100, rate=50, do_not_save=True)
		si.append("taxes", {
			"charge_type": "On Net Total",
			"account_head": "_Test Account Service Tax - _TC",
			"cost_center": "_Test Cost Center - _TC",
			"description": "Service Tax",
			"rate": 14,
			'included_in_print_rate': 1
		})
		si.append("taxes", {
			"charge_type": "On Item Quantity",
			"account_head": "_Test Account Education Cess - _TC",
			"cost_center": "_Test Cost Center - _TC",
			"description": "CESS",
			"rate": 5,
			'included_in_print_rate': 1
		})
		si.insert()

		# with inclusive tax
		self.assertEqual(si.items[0].net_amount, 3947.368421052631)
		self.assertEqual(si.net_total, 3947.37)
		self.assertEqual(si.grand_total, 5000)

		si.reload()

		# additional discount
		si.discount_amount = 100
		si.apply_discount_on = 'Net Total'
		si.payment_schedule = []

		si.save()

		# with inclusive tax and additional discount
		self.assertEqual(si.net_total, 3847.37)
		self.assertEqual(si.grand_total, 4886)

		si.reload()

		# additional discount on grand total
		si.discount_amount = 100
		si.apply_discount_on = 'Grand Total'
		si.payment_schedule = []

		si.save()

		# with inclusive tax and additional discount
		self.assertEqual(si.net_total, 3859.65)
		self.assertEqual(si.grand_total, 4900.00)

	def test_sales_invoice_discount_amount(self):
		si = frappe.copy_doc(test_records[3])
		si.discount_amount = 104.94
		si.append("taxes", {
			"charge_type": "On Previous Row Amount",
			"account_head": "_Test Account Service Tax - _TC",
			"cost_center": "_Test Cost Center - _TC",
			"description": "Service Tax",
			"rate": 10,
			"row_id": 8,
		})
		si.insert()

		expected_values = [
			{
				"item_code": "_Test Item Home Desktop 100",
				"price_list_rate": 62.5,
				"discount_percentage": 0,
				"rate": 62.5,
				"amount": 625,
				"base_price_list_rate": 62.5,
				"base_rate": 62.5,
				"base_amount": 625,
				"net_rate": 46.54,
				"net_amount": 465.37,
				"base_net_rate": 46.54,
				"base_net_amount": 465.37
			},
			{
				"item_code": "_Test Item Home Desktop 200",
				"price_list_rate": 190.66,
				"discount_percentage": 0,
				"rate": 190.66,
				"amount": 953.3,
				"base_price_list_rate": 190.66,
				"base_rate": 190.66,
				"base_amount": 953.3,
				"net_rate": 139.62,
				"net_amount": 698.08,
				"base_net_rate": 139.62,
				"base_net_amount": 698.08
			}
		]

		# check if children are saved
		self.assertEqual(len(si.get("items")),	len(expected_values))

		# check if item values are calculated
		for i, d in enumerate(si.get("items")):
			for k, v in iteritems(expected_values[i]):
				self.assertEqual(d.get(k), v)

		# check net total
		self.assertEqual(si.base_net_total, 1163.45)
		self.assertEqual(si.total, 1578.3)

		# check tax calculation
		expected_values = {
			"keys": ["tax_amount", "tax_amount_after_discount_amount", "total"],
			"_Test Account Excise Duty - _TC": [140, 130.31, 1293.76],
			"_Test Account Education Cess - _TC": [2.8, 2.61, 1296.37],
			"_Test Account S&H Education Cess - _TC": [1.4, 1.30, 1297.67],
			"_Test Account CST - _TC": [27.88, 25.95, 1323.62],
			"_Test Account VAT - _TC": [156.25, 145.43, 1469.05],
			"_Test Account Customs Duty - _TC": [125, 116.35, 1585.40],
			"_Test Account Shipping Charges - _TC": [100, 100, 1685.40],
			"_Test Account Discount - _TC": [-180.33, -168.54, 1516.86],
			"_Test Account Service Tax - _TC": [-18.03, -16.85, 1500.01]
		}

		for d in si.get("taxes"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.account_head][i])

		self.assertEqual(si.base_grand_total, 1500)
		self.assertEqual(si.grand_total, 1500)
		self.assertEqual(si.rounding_adjustment, -0.01)

	def test_discount_amount_gl_entry(self):
		frappe.db.set_value("Company", "_Test Company", "round_off_account", "Round Off - _TC")
		si = frappe.copy_doc(test_records[3])
		si.discount_amount = 104.94
		si.append("taxes", {
			"doctype": "Sales Taxes and Charges",
			"charge_type": "On Previous Row Amount",
			"account_head": "_Test Account Service Tax - _TC",
			"cost_center": "_Test Cost Center - _TC",
			"description": "Service Tax",
			"rate": 10,
			"row_id": 8
		})
		si.insert()
		si.submit()

		gl_entries = frappe.db.sql("""select account, debit, credit
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", si.name, as_dict=1)

		self.assertTrue(gl_entries)

		expected_values = dict((d[0], d) for d in [
			[si.debit_to, 1500, 0.0],
			[test_records[3]["items"][0]["income_account"], 0.0, 1163.45],
			[test_records[3]["taxes"][0]["account_head"], 0.0, 130.31],
			[test_records[3]["taxes"][1]["account_head"], 0.0, 2.61],
			[test_records[3]["taxes"][2]["account_head"], 0.0, 1.30],
			[test_records[3]["taxes"][3]["account_head"], 0.0, 25.95],
			[test_records[3]["taxes"][4]["account_head"], 0.0, 145.43],
			[test_records[3]["taxes"][5]["account_head"], 0.0, 116.35],
			[test_records[3]["taxes"][6]["account_head"], 0.0, 100],
			[test_records[3]["taxes"][7]["account_head"], 168.54, 0.0],
			["_Test Account Service Tax - _TC", 16.85, 0.0],
			["Round Off - _TC", 0.01, 0.0]
		])

		for gle in gl_entries:
			self.assertEqual(expected_values[gle.account][0], gle.account)
			self.assertEqual(expected_values[gle.account][1], gle.debit)
			self.assertEqual(expected_values[gle.account][2], gle.credit)

		# cancel
		si.cancel()

		gle = frappe.db.sql("""select * from `tabGL Entry`
			where voucher_type='Sales Invoice' and voucher_no=%s""", si.name)

		self.assertTrue(gle)

	def test_tax_calculation_with_multiple_items(self):
		si = create_sales_invoice(qty=84, rate=4.6, do_not_save=True)
		item_row = si.get("items")[0]
		for qty in (54, 288, 144, 430):
			item_row_copy = copy.deepcopy(item_row)
			item_row_copy.qty = qty
			si.append("items", item_row_copy)

		si.append("taxes", {
			"account_head": "_Test Account VAT - _TC",
			"charge_type": "On Net Total",
			"cost_center": "_Test Cost Center - _TC",
			"description": "VAT",
			"doctype": "Sales Taxes and Charges",
			"rate": 19
		})
		si.insert()

		self.assertEqual(si.net_total, 4600)

		self.assertEqual(si.get("taxes")[0].tax_amount, 874.0)
		self.assertEqual(si.get("taxes")[0].total, 5474.0)

		self.assertEqual(si.grand_total, 5474.0)

	def test_tax_calculation_with_item_tax_template(self):
		si = create_sales_invoice(qty=84, rate=4.6, do_not_save=True)
		item_row = si.get("items")[0]

		add_items = [
			(54, '_Test Account Excise Duty @ 12'),
			(288, '_Test Account Excise Duty @ 15'),
			(144, '_Test Account Excise Duty @ 20'),
			(430, '_Test Item Tax Template 1')
		]
		for qty, item_tax_template in add_items:
			item_row_copy = copy.deepcopy(item_row)
			item_row_copy.qty = qty
			item_row_copy.item_tax_template = item_tax_template
			si.append("items", item_row_copy)

		si.append("taxes", {
			"account_head": "_Test Account Excise Duty - _TC",
			"charge_type": "On Net Total",
			"cost_center": "_Test Cost Center - _TC",
			"description": "Excise Duty",
			"doctype": "Sales Taxes and Charges",
			"rate": 11
		})
		si.append("taxes", {
			"account_head": "_Test Account Education Cess - _TC",
			"charge_type": "On Net Total",
			"cost_center": "_Test Cost Center - _TC",
			"description": "Education Cess",
			"doctype": "Sales Taxes and Charges",
			"rate": 0
		})
		si.append("taxes", {
			"account_head": "_Test Account S&H Education Cess - _TC",
			"charge_type": "On Net Total",
			"cost_center": "_Test Cost Center - _TC",
			"description": "S&H Education Cess",
			"doctype": "Sales Taxes and Charges",
			"rate": 3
		})
		si.insert()

		self.assertEqual(si.net_total, 4600)

		self.assertEqual(si.get("taxes")[0].tax_amount, 502.41)
		self.assertEqual(si.get("taxes")[0].total, 5102.41)

		self.assertEqual(si.get("taxes")[1].tax_amount, 197.80)
		self.assertEqual(si.get("taxes")[1].total, 5300.21)

		self.assertEqual(si.get("taxes")[2].tax_amount, 375.36)
		self.assertEqual(si.get("taxes")[2].total, 5675.57)

		self.assertEqual(si.grand_total, 5675.57)
		self.assertEqual(si.rounding_adjustment, 0.43)
		self.assertEqual(si.rounded_total, 5676.0)

	def test_tax_calculation_with_multiple_items_and_discount(self):
		si = create_sales_invoice(qty=1, rate=75, do_not_save=True)
		item_row = si.get("items")[0]
		for rate in (500, 200, 100, 50, 50):
			item_row_copy = copy.deepcopy(item_row)
			item_row_copy.price_list_rate = rate
			item_row_copy.rate = rate
			si.append("items", item_row_copy)

		si.apply_discount_on = "Net Total"
		si.discount_amount = 75.0

		si.append("taxes", {
			"account_head": "_Test Account VAT - _TC",
			"charge_type": "On Net Total",
			"cost_center": "_Test Cost Center - _TC",
			"description": "VAT",
			"doctype": "Sales Taxes and Charges",
			"rate": 24
		})
		si.insert()

		self.assertEqual(si.total, 975)
		self.assertEqual(si.net_total, 900)

		self.assertEqual(si.get("taxes")[0].tax_amount, 216.0)
		self.assertEqual(si.get("taxes")[0].total, 1116.0)

		self.assertEqual(si.grand_total, 1116.0)

	def test_inclusive_rate_validations(self):
		si = frappe.copy_doc(test_records[2])
		for i, tax in enumerate(si.get("taxes")):
			tax.idx = i+1

		si.get("items")[0].price_list_rate = 62.5
		si.get("items")[0].price_list_rate = 191
		for i in range(6):
			si.get("taxes")[i].included_in_print_rate = 1

		# tax type "Actual" cannot be inclusive
		self.assertRaises(frappe.ValidationError, si.insert)

		# taxes above included type 'On Previous Row Total' should also be included
		si.get("taxes")[0].included_in_print_rate = 0
		self.assertRaises(frappe.ValidationError, si.insert)

	def test_sales_invoice_calculation_base_currency_with_tax_inclusive_price(self):
		# prepare
		si = frappe.copy_doc(test_records[3])
		si.insert()

		expected_values = {
			"keys": ["price_list_rate", "discount_percentage", "rate", "amount",
				"base_price_list_rate", "base_rate", "base_amount", "net_rate", "net_amount"],
			"_Test Item Home Desktop 100": [62.5, 0, 62.5, 625.0, 62.5, 62.5, 625.0, 50, 499.97600115194473],
			"_Test Item Home Desktop 200": [190.66, 0, 190.66, 953.3, 190.66, 190.66, 953.3, 150, 749.9968530500239],
		}

		# check if children are saved
		self.assertEqual(len(si.get("items")), len(expected_values)-1)

		# check if item values are calculated
		for d in si.get("items"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.item_code][i])

		# check net total
		self.assertEqual(si.net_total, 1249.97)
		self.assertEqual(si.total, 1578.3)

		# check tax calculation
		expected_values = {
			"keys": ["tax_amount", "total"],
			"_Test Account Excise Duty - _TC": [140, 1389.97],
			"_Test Account Education Cess - _TC": [2.8, 1392.77],
			"_Test Account S&H Education Cess - _TC": [1.4, 1394.17],
			"_Test Account CST - _TC": [27.88, 1422.05],
			"_Test Account VAT - _TC": [156.25, 1578.30],
			"_Test Account Customs Duty - _TC": [125, 1703.30],
			"_Test Account Shipping Charges - _TC": [100, 1803.30],
			"_Test Account Discount - _TC": [-180.33, 1622.97]
		}

		for d in si.get("taxes"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.account_head][i])

		self.assertEqual(si.base_grand_total, 1622.97)
		self.assertEqual(si.grand_total, 1622.97)

	def test_sales_invoice_calculation_export_currency_with_tax_inclusive_price(self):
		# prepare
		si = frappe.copy_doc(test_records[3])
		si.currency = "USD"
		si.conversion_rate = 50
		si.get("items")[0].price_list_rate = 55.56
		si.get("items")[0].discount_percentage = 10
		si.get("items")[1].price_list_rate = 187.5
		si.get("items")[1].discount_percentage = 20

		# change shipping to $2
		si.get("taxes")[6].tax_amount = 2

		si.insert()

		expected_values = [
			{
				"item_code": "_Test Item Home Desktop 100",
				"price_list_rate": 55.56,
				"discount_percentage": 10,
				"rate": 50,
				"amount": 500,
				"base_price_list_rate": 2778,
				"base_rate": 2500,
				"base_amount": 25000,
				"net_rate": 40,
				"net_amount": 399.9808009215558,
				"base_net_rate": 2000,
				"base_net_amount": 19999
			},
			{
				"item_code": "_Test Item Home Desktop 200",
				"price_list_rate": 187.5,
				"discount_percentage": 20,
				"rate": 150,
				"amount": 750,
				"base_price_list_rate": 9375,
				"base_rate": 7500,
				"base_amount": 37500,
				"net_rate": 118.01,
				"net_amount": 590.0531205155963,
				"base_net_rate": 5900.5,
				"base_net_amount": 29502.5
			}
		]

		# check if children are saved
		self.assertEqual(len(si.get("items")), len(expected_values))

		# check if item values are calculated
		for i, d in enumerate(si.get("items")):
			for key, val in iteritems(expected_values[i]):
				self.assertEqual(d.get(key), val)

		# check net total
		self.assertEqual(si.base_net_total, 49501.5)
		self.assertEqual(si.net_total, 990.03)
		self.assertEqual(si.total, 1250)

		# check tax calculation
		expected_values = {
			"keys": ["base_tax_amount", "base_total", "tax_amount", "total"],
			"_Test Account Excise Duty - _TC": [5540.0, 55041.5, 110.80, 1100.83],
			"_Test Account Education Cess - _TC": [111, 55152.5, 2.22, 1103.05],
			"_Test Account S&H Education Cess - _TC": [55.5, 55208.0, 1.11, 1104.16],
			"_Test Account CST - _TC": [1104, 56312.0, 22.08, 1126.24],
			"_Test Account VAT - _TC": [6187.5, 62499.5, 123.75, 1249.99],
			"_Test Account Customs Duty - _TC": [4950.0, 67449.5, 99.0, 1348.99],
			"_Test Account Shipping Charges - _TC": [ 100, 67549.5, 2, 1350.99],
			"_Test Account Discount - _TC": [ -6755, 60794.5, -135.10, 1215.89]
		}

		for d in si.get("taxes"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.account_head][i])

		self.assertEqual(si.base_grand_total, 60795)
		self.assertEqual(si.grand_total, 1215.90)
		self.assertEqual(si.rounding_adjustment, 0.01)
		self.assertEqual(si.base_rounding_adjustment, 0.50)


	def test_outstanding(self):
		w = self.make()
		self.assertEqual(w.outstanding_amount, w.base_rounded_total)

	def test_payment(self):
		w = self.make()

		from erpnext.accounts.doctype.journal_entry.test_journal_entry \
			import test_records as jv_test_records

		jv = frappe.get_doc(frappe.copy_doc(jv_test_records[0]))
		jv.get("accounts")[0].reference_type = w.doctype
		jv.get("accounts")[0].reference_name = w.name
		jv.insert()
		jv.submit()

		self.assertEqual(frappe.db.get_value("Sales Invoice", w.name, "outstanding_amount"), 162.0)

		link_data = get_dynamic_link_map().get('Sales Invoice', [])
		link_doctypes = [d.parent for d in link_data]

		# test case for dynamic link order
		self.assertTrue(link_doctypes.index('GL Entry') > link_doctypes.index('Journal Entry Account'))

		jv.cancel()
		self.assertEqual(frappe.db.get_value("Sales Invoice", w.name, "outstanding_amount"), 562.0)

	def test_sales_invoice_gl_entry_without_perpetual_inventory(self):
		si = frappe.copy_doc(test_records[1])
		set_perpetual_inventory(0, si.company)
		si.insert()
		si.submit()

		gl_entries = frappe.db.sql("""select account, debit, credit
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", si.name, as_dict=1)

		self.assertTrue(gl_entries)

		expected_values = dict((d[0], d) for d in [
			[si.debit_to, 630.0, 0.0],
			[test_records[1]["items"][0]["income_account"], 0.0, 500.0],
			[test_records[1]["taxes"][0]["account_head"], 0.0, 80.0],
			[test_records[1]["taxes"][1]["account_head"], 0.0, 50.0],
		])

		for i, gle in enumerate(gl_entries):
			self.assertEqual(expected_values[gle.account][0], gle.account)
			self.assertEqual(expected_values[gle.account][1], gle.debit)
			self.assertEqual(expected_values[gle.account][2], gle.credit)

		# cancel
		si.cancel()

		gle = frappe.db.sql("""select * from `tabGL Entry`
			where voucher_type='Sales Invoice' and voucher_no=%s""", si.name)

		self.assertTrue(gle)

	def test_pos_gl_entry_with_perpetual_inventory(self):
		make_pos_profile()

		pr = make_purchase_receipt(company= "_Test Company with perpetual inventory", item_code= "_Test FG Item",warehouse= "Stores - TCP1",cost_center= "Main - TCP1")

		pos = create_sales_invoice(company= "_Test Company with perpetual inventory", debit_to="Debtors - TCP1", item_code= "_Test FG Item", warehouse="Stores - TCP1",
			income_account = "Sales - TCP1", expense_account = "Cost of Goods Sold - TCP1", cost_center = "Main - TCP1", do_not_save=True)

		pos.is_pos = 1
		pos.update_stock = 1

		pos.append("payments", {'mode_of_payment': 'Bank Draft', 'account': '_Test Bank - TCP1', 'amount': 50})
		pos.append("payments", {'mode_of_payment': 'Cash', 'account': 'Cash - TCP1', 'amount': 50})

		taxes = get_taxes_and_charges()
		pos.taxes = []
		for tax in taxes:
			pos.append("taxes", tax)

		si = frappe.copy_doc(pos)
		si.insert()
		si.submit()
		self.assertEqual(si.paid_amount, 100.0)

		self.pos_gl_entry(si, pos, 50)

	def test_pos_returns_with_repayment(self):
		from erpnext.accounts.doctype.sales_invoice.sales_invoice import make_sales_return

		pos_profile = make_pos_profile()

		pos_profile.payments = []
		pos_profile.append('payments', {
			'default': 1,
			'mode_of_payment': 'Cash'
		})

		pos_profile.save()

		pos = create_sales_invoice(qty = 10, do_not_save=True)

		pos.is_pos = 1
		pos.pos_profile = pos_profile.name

		pos.append("payments", {'mode_of_payment': 'Bank Draft', 'account': '_Test Bank - _TC', 'amount': 500})
		pos.append("payments", {'mode_of_payment': 'Cash', 'account': 'Cash - _TC', 'amount': 500})
		pos.insert()
		pos.submit()

		pos_return = make_sales_return(pos.name)

		pos_return.insert()
		pos_return.submit()

		self.assertEqual(pos_return.get('payments')[0].amount, -1000)

	def test_pos_change_amount(self):
		make_pos_profile()

		pr = make_purchase_receipt(company= "_Test Company with perpetual inventory",
			item_code= "_Test FG Item",warehouse= "Stores - TCP1", cost_center= "Main - TCP1")

		pos = create_sales_invoice(company= "_Test Company with perpetual inventory",
			debit_to="Debtors - TCP1", item_code= "_Test FG Item", warehouse="Stores - TCP1",
			income_account = "Sales - TCP1", expense_account = "Cost of Goods Sold - TCP1",
			cost_center = "Main - TCP1", do_not_save=True)

		pos.is_pos = 1
		pos.update_stock = 1

		pos.append("payments", {'mode_of_payment': 'Bank Draft', 'account': '_Test Bank - TCP1', 'amount': 50})
		pos.append("payments", {'mode_of_payment': 'Cash', 'account': 'Cash - TCP1', 'amount': 60})

		pos.change_amount = 5.0
		pos.insert()
		pos.submit()

		self.assertEqual(pos.grand_total, 100.0)
		self.assertEqual(pos.write_off_amount, -5)

	def pos_gl_entry(self, si, pos, cash_amount):
		# check stock ledger entries
		sle = frappe.db.sql("""select * from `tabStock Ledger Entry`
			where voucher_type = 'Sales Invoice' and voucher_no = %s""",
			si.name, as_dict=1)[0]
		self.assertTrue(sle)
		self.assertEqual([sle.item_code, sle.warehouse, sle.actual_qty],
			['_Test FG Item', 'Stores - TCP1', -1.0])

		# check gl entries
		gl_entries = frappe.db.sql("""select account, debit, credit
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc, debit asc, credit asc""", si.name, as_dict=1)
		self.assertTrue(gl_entries)

		stock_in_hand = get_inventory_account('_Test Company with perpetual inventory')
		expected_gl_entries = sorted([
			[si.debit_to, 100.0, 0.0],
			[pos.items[0].income_account, 0.0, 89.09],
			['Round Off - TCP1', 0.0, 0.01],
			[pos.taxes[0].account_head, 0.0, 10.69],
			[pos.taxes[1].account_head, 0.0, 0.21],
			[stock_in_hand, 0.0, abs(sle.stock_value_difference)],
			[pos.items[0].expense_account, abs(sle.stock_value_difference), 0.0],
			[si.debit_to, 0.0, 50.0],
			[si.debit_to, 0.0, cash_amount],
			["_Test Bank - TCP1", 50, 0.0],
			["Cash - TCP1", cash_amount, 0.0]
		])

		for i, gle in enumerate(sorted(gl_entries, key=lambda gle: gle.account)):
			self.assertEqual(expected_gl_entries[i][0], gle.account)
			self.assertEqual(expected_gl_entries[i][1], gle.debit)
			self.assertEqual(expected_gl_entries[i][2], gle.credit)

		si.cancel()
		gle = frappe.db.sql("""select * from `tabGL Entry`
			where voucher_type='Sales Invoice' and voucher_no=%s""", si.name)

		self.assertTrue(gle)

		frappe.db.sql("delete from `tabPOS Profile`")

	def test_pos_si_without_payment(self):
		set_perpetual_inventory()
		make_pos_profile()

		pos = copy.deepcopy(test_records[1])
		pos["is_pos"] = 1
		pos["update_stock"] = 1

		si = frappe.copy_doc(pos)
		si.insert()

		# Check that the invoice cannot be submitted without payments
		self.assertRaises(frappe.ValidationError, si.submit)

	def test_sales_invoice_gl_entry_with_perpetual_inventory_no_item_code(self):
		set_perpetual_inventory()

		si = frappe.get_doc(test_records[1])
		si.get("items")[0].item_code = None
		si.insert()
		si.submit()

		gl_entries = frappe.db.sql("""select account, debit, credit
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", si.name, as_dict=1)
		self.assertTrue(gl_entries)

		expected_values = dict((d[0], d) for d in [
			[si.debit_to, 630.0, 0.0],
			[test_records[1]["items"][0]["income_account"], 0.0, 500.0],
			[test_records[1]["taxes"][0]["account_head"], 0.0, 80.0],
			[test_records[1]["taxes"][1]["account_head"], 0.0, 50.0],
		])
		for i, gle in enumerate(gl_entries):
			self.assertEqual(expected_values[gle.account][0], gle.account)
			self.assertEqual(expected_values[gle.account][1], gle.debit)
			self.assertEqual(expected_values[gle.account][2], gle.credit)

		set_perpetual_inventory(0)

	def test_sales_invoice_gl_entry_with_perpetual_inventory_non_stock_item(self):
		set_perpetual_inventory()
		si = frappe.get_doc(test_records[1])
		si.get("items")[0].item_code = "_Test Non Stock Item"
		si.insert()
		si.submit()

		gl_entries = frappe.db.sql("""select account, debit, credit
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", si.name, as_dict=1)
		self.assertTrue(gl_entries)

		expected_values = dict((d[0], d) for d in [
			[si.debit_to, 630.0, 0.0],
			[test_records[1]["items"][0]["income_account"], 0.0, 500.0],
			[test_records[1]["taxes"][0]["account_head"], 0.0, 80.0],
			[test_records[1]["taxes"][1]["account_head"], 0.0, 50.0],
		])
		for i, gle in enumerate(gl_entries):
			self.assertEqual(expected_values[gle.account][0], gle.account)
			self.assertEqual(expected_values[gle.account][1], gle.debit)
			self.assertEqual(expected_values[gle.account][2], gle.credit)

		set_perpetual_inventory(0)

	def _insert_purchase_receipt(self):
		from erpnext.stock.doctype.purchase_receipt.test_purchase_receipt import test_records \
			as pr_test_records
		pr = frappe.copy_doc(pr_test_records[0])
		pr.naming_series = "_T-Purchase Receipt-"
		pr.insert()
		pr.submit()

	def _insert_delivery_note(self):
		from erpnext.stock.doctype.delivery_note.test_delivery_note import test_records \
			as dn_test_records
		dn = frappe.copy_doc(dn_test_records[0])
		dn.naming_series = "_T-Delivery Note-"
		dn.insert()
		dn.submit()
		return dn

	def test_sales_invoice_with_advance(self):
		from erpnext.accounts.doctype.journal_entry.test_journal_entry \
			import test_records as jv_test_records

		jv = frappe.copy_doc(jv_test_records[0])
		jv.insert()
		jv.submit()

		si = frappe.copy_doc(test_records[0])
		si.allocate_advances_automatically = 0
		si.append("advances", {
			"doctype": "Sales Invoice Advance",
			"reference_type": "Journal Entry",
			"reference_name": jv.name,
			"reference_row": jv.get("accounts")[0].name,
			"advance_amount": 400,
			"allocated_amount": 300,
			"remarks": jv.remark
		})
		si.insert()
		si.submit()
		si.load_from_db()

		self.assertTrue(frappe.db.sql("""select name from `tabJournal Entry Account`
			where reference_name=%s""", si.name))

		self.assertTrue(frappe.db.sql("""select name from `tabJournal Entry Account`
			where reference_name=%s and credit_in_account_currency=300""", si.name))

		self.assertEqual(si.outstanding_amount, 262.0)

		si.cancel()

	def test_serialized(self):
		from erpnext.stock.doctype.stock_entry.test_stock_entry import make_serialized_item
		from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos

		se = make_serialized_item()
		serial_nos = get_serial_nos(se.get("items")[0].serial_no)

		si = frappe.copy_doc(test_records[0])
		si.update_stock = 1
		si.get("items")[0].item_code = "_Test Serialized Item With Series"
		si.get("items")[0].qty = 1
		si.get("items")[0].serial_no = serial_nos[0]
		si.insert()
		si.submit()

		self.assertFalse(frappe.db.get_value("Serial No", serial_nos[0], "warehouse"))
		self.assertEqual(frappe.db.get_value("Serial No", serial_nos[0],
			"delivery_document_no"), si.name)
		self.assertEqual(frappe.db.get_value("Serial No", serial_nos[0], "sales_invoice"),
			si.name)

		# check if the serial number is already linked with any other Sales Invoice
		_si = frappe.copy_doc(si.as_dict())
		self.assertRaises(frappe.ValidationError, _si.insert)

		return si

	def test_serialized_cancel(self):
		from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
		si = self.test_serialized()
		si.cancel()

		serial_nos = get_serial_nos(si.get("items")[0].serial_no)

		self.assertEqual(frappe.db.get_value("Serial No", serial_nos[0], "warehouse"), "_Test Warehouse - _TC")
		self.assertFalse(frappe.db.get_value("Serial No", serial_nos[0],
			"delivery_document_no"))
		self.assertFalse(frappe.db.get_value("Serial No", serial_nos[0], "sales_invoice"))

	def test_serialize_status(self):
		serial_no = frappe.get_doc({
			"doctype": "Serial No",
			"item_code": "_Test Serialized Item With Series",
			"serial_no": make_autoname("SR", "Serial No")
		})
		serial_no.save()

		si = frappe.copy_doc(test_records[0])
		si.update_stock = 1
		si.get("items")[0].item_code = "_Test Serialized Item With Series"
		si.get("items")[0].qty = 1
		si.get("items")[0].serial_no = serial_no.name
		si.insert()

		self.assertRaises(SerialNoWarehouseError, si.submit)

	def test_serial_numbers_against_delivery_note(self):
		"""
			check if the sales invoice item serial numbers and the delivery note items
			serial numbers are same
		"""
		from erpnext.stock.doctype.stock_entry.test_stock_entry import make_serialized_item
		from erpnext.stock.doctype.delivery_note.test_delivery_note import create_delivery_note
		from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos

		se = make_serialized_item()
		serial_nos = get_serial_nos(se.get("items")[0].serial_no)

		dn = create_delivery_note(item=se.get("items")[0].item_code, serial_no=serial_nos[0])
		dn.submit()

		si = make_sales_invoice(dn.name)
		si.save()

		self.assertEqual(si.get("items")[0].serial_no, dn.get("items")[0].serial_no)

	def test_return_sales_invoice(self):
		make_stock_entry(item_code="_Test Item", target="Stores - TCP1", qty=50, basic_rate=100)

		actual_qty_0 = get_qty_after_transaction(item_code = "_Test Item", warehouse = "Stores - TCP1")

		si = create_sales_invoice(qty = 5, rate=500, update_stock=1, company= "_Test Company with perpetual inventory", debit_to="Debtors - TCP1", item_code= "_Test Item", warehouse="Stores - TCP1", income_account = "Sales - TCP1", expense_account = "Cost of Goods Sold - TCP1", cost_center = "Main - TCP1")


		actual_qty_1 = get_qty_after_transaction(item_code = "_Test Item", warehouse = "Stores - TCP1")

		frappe.db.commit()

		self.assertEqual(actual_qty_0 - 5, actual_qty_1)

		# outgoing_rate
		outgoing_rate = frappe.db.get_value("Stock Ledger Entry", {"voucher_type": "Sales Invoice",
			"voucher_no": si.name}, "stock_value_difference") / 5

		# return entry
		si1 = create_sales_invoice(is_return=1, return_against=si.name, qty=-2, rate=500, update_stock=1, company= "_Test Company with perpetual inventory", debit_to="Debtors - TCP1", item_code= "_Test Item", warehouse="Stores - TCP1", income_account = "Sales - TCP1", expense_account = "Cost of Goods Sold - TCP1", cost_center = "Main - TCP1")

		actual_qty_2 = get_qty_after_transaction(item_code = "_Test Item", warehouse = "Stores - TCP1")
		self.assertEqual(actual_qty_1 + 2, actual_qty_2)

		incoming_rate, stock_value_difference = frappe.db.get_value("Stock Ledger Entry",
			{"voucher_type": "Sales Invoice", "voucher_no": si1.name},
			["incoming_rate", "stock_value_difference"])

		self.assertEqual(flt(incoming_rate, 3), abs(flt(outgoing_rate, 3)))
		stock_in_hand_account = get_inventory_account('_Test Company with perpetual inventory', si1.items[0].warehouse)

		# Check gl entry
		gle_warehouse_amount = frappe.db.get_value("GL Entry", {"voucher_type": "Sales Invoice",
			"voucher_no": si1.name, "account": stock_in_hand_account}, "debit")

		self.assertEqual(gle_warehouse_amount, stock_value_difference)

		party_credited = frappe.db.get_value("GL Entry", {"voucher_type": "Sales Invoice",
			"voucher_no": si1.name, "account": "Debtors - TCP1", "party": "_Test Customer"}, "credit")

		self.assertEqual(party_credited, 1000)

		# Check outstanding amount
		self.assertFalse(si1.outstanding_amount)
		self.assertEqual(frappe.db.get_value("Sales Invoice", si.name, "outstanding_amount"), 1500)


	def test_discount_on_net_total(self):
		si = frappe.copy_doc(test_records[2])
		si.apply_discount_on = "Net Total"
		si.discount_amount = 625
		si.insert()

		expected_values = {
			"keys": ["price_list_rate", "discount_percentage", "rate", "amount",
				"base_price_list_rate", "base_rate", "base_amount",
				"net_rate", "base_net_rate", "net_amount", "base_net_amount"],
			"_Test Item Home Desktop 100": [50, 0, 50, 500, 50, 50, 500, 25, 25, 250, 250],
			"_Test Item Home Desktop 200": [150, 0, 150, 750, 150, 150, 750, 75, 75, 375, 375],
		}

		# check if children are saved
		self.assertEqual(len(si.get("items")),
			len(expected_values)-1)

		# check if item values are calculated
		for d in si.get("items"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.item_code][i])

		# check net total
		self.assertEqual(si.base_total, 1250)
		self.assertEqual(si.total, 1250)
		self.assertEqual(si.base_net_total, 625)
		self.assertEqual(si.net_total, 625)

		# check tax calculation
		expected_values = {
			"keys": ["tax_amount", "tax_amount_after_discount_amount",
				"base_tax_amount_after_discount_amount"],
			"_Test Account Shipping Charges - _TC": [100, 100, 100],
			"_Test Account Customs Duty - _TC": [62.5, 62.5, 62.5],
			"_Test Account Excise Duty - _TC": [70, 70, 70],
			"_Test Account Education Cess - _TC": [1.4, 1.4, 1.4],
			"_Test Account S&H Education Cess - _TC": [.7, 0.7, 0.7],
			"_Test Account CST - _TC": [17.19, 17.19, 17.19],
			"_Test Account VAT - _TC": [78.13, 78.13, 78.13],
			"_Test Account Discount - _TC": [-95.49, -95.49, -95.49]
		}

		for d in si.get("taxes"):
			for i, k in enumerate(expected_values["keys"]):
				if expected_values.get(d.account_head):
					self.assertEqual(d.get(k), expected_values[d.account_head][i])


		self.assertEqual(si.total_taxes_and_charges, 234.43)
		self.assertEqual(si.base_grand_total, 859.43)
		self.assertEqual(si.grand_total, 859.43)

	def test_multi_currency_gle(self):
		set_perpetual_inventory(0)
		si = create_sales_invoice(customer="_Test Customer USD", debit_to="_Test Receivable USD - _TC",
			currency="USD", conversion_rate=50)

		gl_entries = frappe.db.sql("""select account, account_currency, debit, credit,
			debit_in_account_currency, credit_in_account_currency
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", si.name, as_dict=1)

		self.assertTrue(gl_entries)

		expected_values = {
			"_Test Receivable USD - _TC": {
				"account_currency": "USD",
				"debit": 5000,
				"debit_in_account_currency": 100,
				"credit": 0,
				"credit_in_account_currency": 0
			},
			"Sales - _TC": {
				"account_currency": "INR",
				"debit": 0,
				"debit_in_account_currency": 0,
				"credit": 5000,
				"credit_in_account_currency": 5000
			}
		}

		for field in ("account_currency", "debit", "debit_in_account_currency", "credit", "credit_in_account_currency"):
			for i, gle in enumerate(gl_entries):
				self.assertEqual(expected_values[gle.account][field], gle[field])

		# cancel
		si.cancel()

		gle = frappe.db.sql("""select name from `tabGL Entry`
			where voucher_type='Sales Invoice' and voucher_no=%s""", si.name)

		self.assertTrue(gle)

	def test_invalid_currency(self):
		# Customer currency = USD

		# Transaction currency cannot be INR
		si1 = create_sales_invoice(customer="_Test Customer USD", debit_to="_Test Receivable USD - _TC",
			do_not_save=True)

		self.assertRaises(InvalidCurrency, si1.save)

		# Transaction currency cannot be EUR
		si2 = create_sales_invoice(customer="_Test Customer USD", debit_to="_Test Receivable USD - _TC",
			currency="EUR", conversion_rate=80, do_not_save=True)

		self.assertRaises(InvalidCurrency, si2.save)

		# Transaction currency only allowed in USD
		si3 = create_sales_invoice(customer="_Test Customer USD", debit_to="_Test Receivable USD - _TC",
			currency="USD", conversion_rate=50)

		# Party Account currency must be in USD, as there is existing GLE with USD
		si4 = create_sales_invoice(customer="_Test Customer USD", debit_to="_Test Receivable - _TC",
			currency="USD", conversion_rate=50, do_not_submit=True)

		self.assertRaises(InvalidAccountCurrency, si4.submit)

		# Party Account currency must be in USD, force customer currency as there is no GLE

		si3.cancel()
		si5 = create_sales_invoice(customer="_Test Customer USD", debit_to="_Test Receivable - _TC",
			currency="USD", conversion_rate=50, do_not_submit=True)

		self.assertRaises(InvalidAccountCurrency, si5.submit)

	def test_create_so_with_margin(self):
		si = create_sales_invoice(item_code="_Test Item", qty=1, do_not_submit=True)
		price_list_rate = 100
		si.items[0].price_list_rate = price_list_rate
		si.items[0].margin_type = 'Percentage'
		si.items[0].margin_rate_or_amount = 25
		si.save()
		self.assertEqual(si.get("items")[0].rate, flt((price_list_rate*25)/100 + price_list_rate))

	def test_outstanding_amount_after_advance_jv_cancelation(self):
		from erpnext.accounts.doctype.journal_entry.test_journal_entry \
			import test_records as jv_test_records

		jv = frappe.copy_doc(jv_test_records[0])
		jv.accounts[0].is_advance = 'Yes'
		jv.insert()
		jv.submit()

		si = frappe.copy_doc(test_records[0])
		si.append("advances", {
			"doctype": "Sales Invoice Advance",
			"reference_type": "Journal Entry",
			"reference_name": jv.name,
			"reference_row": jv.get("accounts")[0].name,
			"advance_amount": 400,
			"allocated_amount": 300,
			"remarks": jv.remark
		})
		si.insert()
		si.submit()
		si.load_from_db()

		#check outstanding after advance allocation
		self.assertEqual(flt(si.outstanding_amount),
			flt(si.rounded_total - si.total_advance, si.precision("outstanding_amount")))

		#added to avoid Document has been modified exception
		jv = frappe.get_doc("Journal Entry", jv.name)
		jv.cancel()

		si.load_from_db()
		#check outstanding after advance cancellation
		self.assertEqual(flt(si.outstanding_amount),
			flt(si.rounded_total + si.total_advance, si.precision("outstanding_amount")))

	def test_outstanding_amount_after_advance_payment_entry_cancelation(self):
		pe = frappe.get_doc({
			"doctype": "Payment Entry",
			"payment_type": "Receive",
			"party_type": "Customer",
			"party": "_Test Customer",
			"company": "_Test Company",
			"paid_from_account_currency": "INR",
			"paid_to_account_currency": "INR",
			"source_exchange_rate": 1,
			"target_exchange_rate": 1,
			"reference_no": "1",
			"reference_date": nowdate(),
			"received_amount": 300,
			"paid_amount": 300,
			"paid_from": "_Test Receivable - _TC",
			"paid_to": "_Test Cash - _TC"
		})
		pe.insert()
		pe.submit()

		si = frappe.copy_doc(test_records[0])
		si.is_pos = 0
		si.append("advances", {
			"doctype": "Sales Invoice Advance",
			"reference_type": "Payment Entry",
			"reference_name": pe.name,
			"advance_amount": 300,
			"allocated_amount": 300,
			"remarks": pe.remarks
		})
		si.insert()
		si.submit()

		si.load_from_db()

		#check outstanding after advance allocation
		self.assertEqual(flt(si.outstanding_amount),
			flt(si.rounded_total - si.total_advance, si.precision("outstanding_amount")))

		#added to avoid Document has been modified exception
		pe = frappe.get_doc("Payment Entry", pe.name)
		pe.cancel()

		si.load_from_db()
		#check outstanding after advance cancellation
		self.assertEqual(flt(si.outstanding_amount),
			flt(si.rounded_total + si.total_advance, si.precision("outstanding_amount")))

	def test_multiple_uom_in_selling(self):
		frappe.db.sql("""delete from `tabItem Price`
			where price_list='_Test Price List' and item_code='_Test Item'""")
		item_price = frappe.new_doc("Item Price")
		item_price.price_list = "_Test Price List"
		item_price.item_code = "_Test Item"
		item_price.price_list_rate = 100
		item_price.insert()

		si = frappe.copy_doc(test_records[1])
		si.items[0].uom = "_Test UOM 1"
		si.items[0].conversion_factor = None
		si.items[0].price_list_rate = None
		si.save()

		expected_values = {
			"keys": ["price_list_rate", "stock_uom", "uom", "conversion_factor", "rate", "amount",
				"base_price_list_rate", "base_rate", "base_amount"],
			"_Test Item": [1000, "_Test UOM", "_Test UOM 1", 10.0, 1000, 1000, 1000, 1000, 1000]
		}

		# check if the conversion_factor and price_list_rate is calculated according to uom
		for d in si.get("items"):
			for i, k in enumerate(expected_values["keys"]):
				self.assertEqual(d.get(k), expected_values[d.item_code][i])

	def test_item_wise_tax_breakup_india(self):
		frappe.flags.country = "India"

		si = self.create_si_to_test_tax_breakup()
		itemised_tax, itemised_taxable_amount = get_itemised_tax_breakup_data(si)

		expected_itemised_tax = {
			"999800": {
				"Service Tax": {
					"tax_rate": 10.0,
					"tax_amount": 1500.0
				}
			}
		}
		expected_itemised_taxable_amount = {
			"999800": 15000.0
		}

		self.assertEqual(itemised_tax, expected_itemised_tax)
		self.assertEqual(itemised_taxable_amount, expected_itemised_taxable_amount)

		frappe.flags.country = None

	def test_item_wise_tax_breakup_outside_india(self):
		frappe.flags.country = "United States"

		si = self.create_si_to_test_tax_breakup()

		itemised_tax, itemised_taxable_amount = get_itemised_tax_breakup_data(si)

		expected_itemised_tax = {
			"_Test Item": {
				"Service Tax": {
					"tax_rate": 10.0,
					"tax_amount": 1000.0
				}
			},
			"_Test Item 2": {
				"Service Tax": {
					"tax_rate": 10.0,
					"tax_amount": 500.0
				}
			}
		}
		expected_itemised_taxable_amount = {
			"_Test Item": 10000.0,
			"_Test Item 2": 5000.0
		}

		self.assertEqual(itemised_tax, expected_itemised_tax)
		self.assertEqual(itemised_taxable_amount, expected_itemised_taxable_amount)

		frappe.flags.country = None

	def create_si_to_test_tax_breakup(self):
		si = create_sales_invoice(qty=100, rate=50, do_not_save=True)
		si.append("items", {
			"item_code": "_Test Item",
			"gst_hsn_code": "999800",
			"warehouse": "_Test Warehouse - _TC",
			"qty": 100,
			"rate": 50,
			"income_account": "Sales - _TC",
			"expense_account": "Cost of Goods Sold - _TC",
			"cost_center": "_Test Cost Center - _TC"
		})
		si.append("items", {
			"item_code": "_Test Item 2",
			"gst_hsn_code": "999800",
			"warehouse": "_Test Warehouse - _TC",
			"qty": 100,
			"rate": 50,
			"income_account": "Sales - _TC",
			"expense_account": "Cost of Goods Sold - _TC",
			"cost_center": "_Test Cost Center - _TC"
		})

		si.append("taxes", {
			"charge_type": "On Net Total",
			"account_head": "_Test Account Service Tax - _TC",
			"cost_center": "_Test Cost Center - _TC",
			"description": "Service Tax",
			"rate": 10
		})
		si.insert()
		return si

	def test_company_monthly_sales(self):
		existing_current_month_sales = frappe.get_cached_value('Company',  "_Test Company",  "total_monthly_sales")

		si = create_sales_invoice()
		current_month_sales = frappe.get_cached_value('Company',  "_Test Company",  "total_monthly_sales")
		self.assertEqual(current_month_sales, existing_current_month_sales + si.base_grand_total)

		si.cancel()
		current_month_sales = frappe.get_cached_value('Company',  "_Test Company",  "total_monthly_sales")
		self.assertEqual(current_month_sales, existing_current_month_sales)

	def test_rounding_adjustment(self):
		si = create_sales_invoice(rate=24900, do_not_save=True)
		for tax in ["Tax 1", "Tax2"]:
			si.append("taxes", {
				"charge_type": "On Net Total",
				"account_head": "_Test Account Service Tax - _TC",
				"description": tax,
				"rate": 14,
				"cost_center": "_Test Cost Center - _TC",
				"included_in_print_rate": 1
			})
		si.save()
		si.submit()
		self.assertEqual(si.net_total, 19453.13)
		self.assertEqual(si.grand_total, 24900)
		self.assertEqual(si.total_taxes_and_charges, 5446.88)
		self.assertEqual(si.rounding_adjustment, -0.01)

		expected_values = dict((d[0], d) for d in [
			[si.debit_to, 24900, 0.0],
			["_Test Account Service Tax - _TC", 0.0, 5446.88],
			["Sales - _TC", 0.0, 19453.13],
			["Round Off - _TC", 0.01, 0.0]
		])

		gl_entries = frappe.db.sql("""select account, debit, credit
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", si.name, as_dict=1)

		for gle in gl_entries:
			self.assertEqual(expected_values[gle.account][0], gle.account)
			self.assertEqual(expected_values[gle.account][1], gle.debit)
			self.assertEqual(expected_values[gle.account][2], gle.credit)

	def test_rounding_adjustment_2(self):
		si = create_sales_invoice(rate=400, do_not_save=True)
		for rate in [400, 600, 100]:
			si.append("items", {
				"item_code": "_Test Item",
				"gst_hsn_code": "999800",
				"warehouse": "_Test Warehouse - _TC",
				"qty": 1,
				"rate": rate,
				"income_account": "Sales - _TC",
				"cost_center": "_Test Cost Center - _TC"
			})
		for tax_account in ["_Test Account VAT - _TC", "_Test Account Service Tax - _TC"]:
			si.append("taxes", {
				"charge_type": "On Net Total",
				"account_head": tax_account,
				"description": tax_account,
				"rate": 9,
				"cost_center": "_Test Cost Center - _TC",
				"included_in_print_rate": 1
			})
		si.save()
		si.submit()
		self.assertEqual(si.net_total, 1271.19)
		self.assertEqual(si.grand_total, 1500)
		self.assertEqual(si.total_taxes_and_charges, 228.82)
		self.assertEqual(si.rounding_adjustment, -0.01)

		expected_values = dict((d[0], d) for d in [
			[si.debit_to, 1500, 0.0],
			["_Test Account Service Tax - _TC", 0.0, 114.41],
			["_Test Account VAT - _TC", 0.0, 114.41],
			["Sales - _TC", 0.0, 1271.18]
		])

		gl_entries = frappe.db.sql("""select account, debit, credit
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", si.name, as_dict=1)

		for gle in gl_entries:
			self.assertEqual(expected_values[gle.account][0], gle.account)
			self.assertEqual(expected_values[gle.account][1], gle.debit)
			self.assertEqual(expected_values[gle.account][2], gle.credit)

	def test_sales_invoice_with_shipping_rule(self):
		from erpnext.accounts.doctype.shipping_rule.test_shipping_rule \
			import create_shipping_rule

		shipping_rule = create_shipping_rule(shipping_rule_type = "Selling", shipping_rule_name = "Shipping Rule - Sales Invoice Test")

		si = frappe.copy_doc(test_records[2])

		si.shipping_rule = shipping_rule.name
		si.insert()

		shipping_amount = 0.0
		for condition in shipping_rule.get("conditions"):
			if not condition.to_value or (flt(condition.from_value) <= si.net_total <= flt(condition.to_value)):
				shipping_amount = condition.shipping_amount

		shipping_charge = {
			"doctype": "Sales Taxes and Charges",
			"category": "Valuation and Total",
			"charge_type": "Actual",
			"account_head": shipping_rule.account,
			"cost_center": shipping_rule.cost_center,
			"tax_amount": shipping_amount,
			"description": shipping_rule.name
		}
		si.append("taxes", shipping_charge)
		si.save()

		self.assertEqual(si.net_total, 1250)

		self.assertEqual(si.total_taxes_and_charges, 577.05)
		self.assertEqual(si.grand_total, 1827.05)



	def test_create_invoice_without_terms(self):
		si = create_sales_invoice(do_not_save=1)
		self.assertFalse(si.get('payment_schedule'))

		si.insert()
		self.assertTrue(si.get('payment_schedule'))

	def test_duplicate_due_date_in_terms(self):
		si = create_sales_invoice(do_not_save=1)
		si.append('payment_schedule', dict(due_date='2017-01-01', invoice_portion=50.00, payment_amount=50))
		si.append('payment_schedule', dict(due_date='2017-01-01', invoice_portion=50.00, payment_amount=50))

		self.assertRaises(frappe.ValidationError, si.insert)

	def test_credit_note(self):
		from erpnext.accounts.doctype.payment_entry.test_payment_entry import get_payment_entry
		si = create_sales_invoice(item_code = "_Test Item", qty = (5 * -1), rate=500, is_return = 1)

		outstanding_amount = get_outstanding_amount(si.doctype,
			si.name, "Debtors - _TC", si.customer, "Customer")

		self.assertEqual(si.outstanding_amount, outstanding_amount)

		pe = get_payment_entry("Sales Invoice", si.name, bank_account="_Test Bank - _TC")
		pe.reference_no = "1"
		pe.reference_date = nowdate()
		pe.paid_from_account_currency = si.currency
		pe.paid_to_account_currency = si.currency
		pe.source_exchange_rate = 1
		pe.target_exchange_rate = 1
		pe.paid_amount = si.grand_total * -1
		pe.insert()
		pe.submit()

		si_doc = frappe.get_doc('Sales Invoice', si.name)
		self.assertEqual(si_doc.outstanding_amount, 0)

	def test_sales_invoice_with_cost_center(self):
		from erpnext.accounts.doctype.cost_center.test_cost_center import create_cost_center
		cost_center = "_Test Cost Center for BS Account - _TC"
		create_cost_center(cost_center_name="_Test Cost Center for BS Account", company="_Test Company")

		si =  create_sales_invoice_against_cost_center(cost_center=cost_center, debit_to="Debtors - _TC")
		self.assertEqual(si.cost_center, cost_center)

		expected_values = {
			"Debtors - _TC": {
				"cost_center": cost_center
			},
			"Sales - _TC": {
				"cost_center": cost_center
			}
		}

		gl_entries = frappe.db.sql("""select account, cost_center, account_currency, debit, credit,
			debit_in_account_currency, credit_in_account_currency
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", si.name, as_dict=1)

		self.assertTrue(gl_entries)

		for gle in gl_entries:
			self.assertEqual(expected_values[gle.account]["cost_center"], gle.cost_center)
	
	def test_sales_invoice_with_project_link(self):
		from erpnext.projects.doctype.project.test_project import make_project

		project = make_project({
			'project_name': 'Sales Invoice Project',
			'project_template_name': 'Test Project Template',
			'start_date': '2020-01-01'
		})
		item_project = make_project({
			'project_name': 'Sales Invoice Item Project',
			'project_template_name': 'Test Project Template',
			'start_date': '2019-06-01'
		})

		sales_invoice = create_sales_invoice(do_not_save=1)
		sales_invoice.items[0].project = item_project.project_name
		sales_invoice.project = project.project_name

		sales_invoice.submit()

		expected_values = {
			"Debtors - _TC": {
				"project": project.project_name
			},
			"Sales - _TC": {
				"project": item_project.project_name
			}
		}

		gl_entries = frappe.db.sql("""select account, cost_center, project, account_currency, debit, credit,
			debit_in_account_currency, credit_in_account_currency
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", sales_invoice.name, as_dict=1)
		
		self.assertTrue(gl_entries)
		
		for gle in gl_entries:
			self.assertEqual(expected_values[gle.account]["project"], gle.project)

	def test_sales_invoice_without_cost_center(self):
		cost_center = "_Test Cost Center - _TC"
		si =  create_sales_invoice(debit_to="Debtors - _TC")

		expected_values = {
			"Debtors - _TC": {
				"cost_center": None
			},
			"Sales - _TC": {
				"cost_center": cost_center
			}
		}

		gl_entries = frappe.db.sql("""select account, cost_center, account_currency, debit, credit,
			debit_in_account_currency, credit_in_account_currency
			from `tabGL Entry` where voucher_type='Sales Invoice' and voucher_no=%s
			order by account asc""", si.name, as_dict=1)

		self.assertTrue(gl_entries)

		for gle in gl_entries:
			self.assertEqual(expected_values[gle.account]["cost_center"], gle.cost_center)

	def test_deferred_revenue(self):
		deferred_account = create_account(account_name="Deferred Revenue",
			parent_account="Current Liabilities - _TC", company="_Test Company")

		item = create_item("_Test Item for Deferred Accounting")
		item.enable_deferred_revenue = 1
		item.deferred_revenue_account = deferred_account
		item.no_of_months = 12
		item.save()

		si = create_sales_invoice(item=item.name, posting_date="2019-01-10", do_not_submit=True)
		si.items[0].enable_deferred_revenue = 1
		si.items[0].service_start_date = "2019-01-10"
		si.items[0].service_end_date = "2019-03-15"
		si.items[0].deferred_revenue_account = deferred_account
		si.save()
		si.submit()

		pda1 = frappe.get_doc(dict(
			doctype='Process Deferred Accounting',
			posting_date=nowdate(),
			start_date="2019-01-01",
			end_date="2019-03-31",
			type="Income",
			company="_Test Company"
		))

		pda1.insert()
		pda1.submit()

		expected_gle = [
			[deferred_account, 33.85, 0.0, "2019-01-31"],
			["Sales - _TC", 0.0, 33.85, "2019-01-31"],
			[deferred_account, 43.08, 0.0, "2019-02-28"],
			["Sales - _TC", 0.0, 43.08, "2019-02-28"],
			[deferred_account, 23.07, 0.0, "2019-03-15"],
			["Sales - _TC", 0.0, 23.07, "2019-03-15"]
		]

		check_gl_entries(self, si.name, expected_gle, "2019-01-30")

	def test_fixed_deferred_revenue(self):
		deferred_account = create_account(account_name="Deferred Revenue",
			parent_account="Current Liabilities - _TC", company="_Test Company")

		acc_settings = frappe.get_doc('Accounts Settings', 'Accounts Settings')
		acc_settings.book_deferred_entries_based_on = 'Months'
		acc_settings.save()

		item = create_item("_Test Item for Deferred Accounting")
		item.enable_deferred_revenue = 1
		item.deferred_revenue_account = deferred_account
		item.no_of_months = 12
		item.save()

		si = create_sales_invoice(item=item.name, posting_date="2019-01-16", rate=50000, do_not_submit=True)
		si.items[0].enable_deferred_revenue = 1
		si.items[0].service_start_date = "2019-01-16"
		si.items[0].service_end_date = "2019-03-31"
		si.items[0].deferred_revenue_account = deferred_account
		si.save()
		si.submit()

		pda1 = frappe.get_doc(dict(
			doctype='Process Deferred Accounting',
			posting_date='2019-03-31',
			start_date="2019-01-01",
			end_date="2019-03-31",
			type="Income",
			company="_Test Company"
		))

		pda1.insert()
		pda1.submit()

		expected_gle = [
			[deferred_account, 10000.0, 0.0, "2019-01-31"],
			["Sales - _TC", 0.0, 10000.0, "2019-01-31"],
			[deferred_account, 20000.0, 0.0, "2019-02-28"],
			["Sales - _TC", 0.0, 20000.0, "2019-02-28"],
			[deferred_account, 20000.0, 0.0, "2019-03-31"],
			["Sales - _TC", 0.0, 20000.0, "2019-03-31"]
		]

		check_gl_entries(self, si.name, expected_gle, "2019-01-30")

		acc_settings = frappe.get_doc('Accounts Settings', 'Accounts Settings')
		acc_settings.book_deferred_entries_based_on = 'Days'
		acc_settings.save()

	def test_inter_company_transaction(self):

		if not frappe.db.exists("Customer", "_Test Internal Customer"):
			customer = frappe.get_doc({
				"customer_group": "_Test Customer Group",
				"customer_name": "_Test Internal Customer",
				"customer_type": "Individual",
				"doctype": "Customer",
				"territory": "_Test Territory",
				"is_internal_customer": 1,
				"represents_company": "_Test Company 1"
			})

			customer.append("companies", {
				"company": "Wind Power LLC"
			})

			customer.insert()

		if not frappe.db.exists("Supplier", "_Test Internal Supplier"):
			supplier = frappe.get_doc({
				"supplier_group": "_Test Supplier Group",
				"supplier_name": "_Test Internal Supplier",
				"doctype": "Supplier",
				"is_internal_supplier": 1,
				"represents_company": "Wind Power LLC"
			})

			supplier.append("companies", {
				"company": "_Test Company 1"
			})

			supplier.insert()

		si = create_sales_invoice(
			company = "Wind Power LLC",
			customer = "_Test Internal Customer",
			debit_to = "Debtors - WP",
			warehouse = "Stores - WP",
			income_account = "Sales - WP",
			expense_account = "Cost of Goods Sold - WP",
			cost_center = "Main - WP",
			currency = "USD",
			do_not_save = 1
		)

		si.selling_price_list = "_Test Price List Rest of the World"
		si.submit()

		target_doc = make_inter_company_transaction("Sales Invoice", si.name)
		target_doc.submit()

		self.assertEqual(target_doc.company, "_Test Company 1")
		self.assertEqual(target_doc.supplier, "_Test Internal Supplier")

	def test_eway_bill_json(self):
		if not frappe.db.exists('Address', '_Test Address for Eway bill-Billing'):
			address = frappe.get_doc({
				"address_line1": "_Test Address Line 1",
				"address_title": "_Test Address for Eway bill",
				"address_type": "Billing",
				"city": "_Test City",
				"state": "Test State",
				"country": "India",
				"doctype": "Address",
				"is_primary_address": 1,
				"phone": "+91 0000000000",
				"gstin": "27AAECE4835E1ZR",
				"gst_state": "Maharashtra",
				"gst_state_number": "27",
				"pincode": "401108"
			}).insert()

			address.append("links", {
				"link_doctype": "Company",
				"link_name": "_Test Company"
			})

			address.save()

		if not frappe.db.exists('Address', '_Test Customer-Address for Eway bill-Shipping'):
			address = frappe.get_doc({
				"address_line1": "_Test Address Line 1",
				"address_title": "_Test Customer-Address for Eway bill",
				"address_type": "Shipping",
				"city": "_Test City",
				"state": "Test State",
				"country": "India",
				"doctype": "Address",
				"is_primary_address": 1,
				"phone": "+91 0000000000",
				"gst_state": "Maharashtra",
				"gst_state_number": "27",
				"pincode": "410038"
			}).insert()

			address.append("links", {
				"link_doctype": "Customer",
				"link_name": "_Test Customer"
			})

			address.save()

		gst_settings = frappe.get_doc("GST Settings")

		gst_account = frappe.get_all(
			"GST Account",
			fields=["cgst_account", "sgst_account", "igst_account"],
			filters = {"company": "_Test Company"})

		if not gst_account:
			gst_settings.append("gst_accounts", {
				"company": "_Test Company",
				"cgst_account": "CGST - _TC",
				"sgst_account": "SGST - _TC",
				"igst_account": "IGST - _TC",
			})

		gst_settings.save()

		si = create_sales_invoice(do_not_save =1, rate = '60000')

		si.distance = 2000
		si.company_address = "_Test Address for Eway bill-Billing"
		si.customer_address = "_Test Customer-Address for Eway bill-Shipping"
		si.vehicle_no = "KA12KA1234"
		si.gst_category = "Registered Regular"

		si.append("taxes", {
			"charge_type": "On Net Total",
			"account_head": "CGST - _TC",
			"cost_center": "Main - _TC",
			"description": "CGST @ 9.0",
			"rate": 9
		})

		si.append("taxes", {
			"charge_type": "On Net Total",
			"account_head": "SGST - _TC",
			"cost_center": "Main - _TC",
			"description": "SGST @ 9.0",
			"rate": 9
		})

		si.submit()

		data = get_ewb_data("Sales Invoice", [si.name])

		self.assertEqual(data['version'], '1.0.1118')
		self.assertEqual(data['billLists'][0]['fromGstin'], '27AAECE4835E1ZR')
		self.assertEqual(data['billLists'][0]['fromTrdName'], '_Test Company')
		self.assertEqual(data['billLists'][0]['toTrdName'], '_Test Customer')
		self.assertEqual(data['billLists'][0]['vehicleType'], 'R')
		self.assertEqual(data['billLists'][0]['totalValue'], 60000)
		self.assertEqual(data['billLists'][0]['cgstValue'], 5400)
		self.assertEqual(data['billLists'][0]['sgstValue'], 5400)
		self.assertEqual(data['billLists'][0]['vehicleNo'], 'KA12KA1234')
		self.assertEqual(data['billLists'][0]['itemList'][0]['taxableAmount'], 60000)

def check_gl_entries(doc, voucher_no, expected_gle, posting_date):
	gl_entries = frappe.db.sql("""select account, debit, credit, posting_date
		from `tabGL Entry`
		where voucher_type='Sales Invoice' and voucher_no=%s and posting_date > %s
		order by posting_date asc, account asc""", (voucher_no, posting_date), as_dict=1)

	for i, gle in enumerate(gl_entries):
		doc.assertEqual(expected_gle[i][0], gle.account)
		doc.assertEqual(expected_gle[i][1], gle.debit)
		doc.assertEqual(expected_gle[i][2], gle.credit)
		doc.assertEqual(getdate(expected_gle[i][3]), gle.posting_date)

	def test_item_tax_validity(self):
		item = frappe.get_doc("Item", "_Test Item 2")

		if item.taxes:
			item.taxes = []
			item.save()

		item.append("taxes", {
			"item_tax_template": "_Test Item Tax Template 1",
			"valid_from": add_days(nowdate(), 1)
		})

		item.save()

		sales_invoice = create_sales_invoice(item = "_Test Item 2", do_not_save=1)
		sales_invoice.items[0].item_tax_template = "_Test Item Tax Template 1"
		self.assertRaises(frappe.ValidationError, sales_invoice.save)

		item.taxes = []
		item.save()

def create_sales_invoice(**args):
	si = frappe.new_doc("Sales Invoice")
	args = frappe._dict(args)
	if args.posting_date:
		si.set_posting_time = 1
	si.posting_date = args.posting_date or nowdate()

	si.company = args.company or "_Test Company"
	si.customer = args.customer or "_Test Customer"
	si.debit_to = args.debit_to or "Debtors - _TC"
	si.update_stock = args.update_stock
	si.is_pos = args.is_pos
	si.is_return = args.is_return
	si.return_against = args.return_against
	si.currency=args.currency or "INR"
	si.conversion_rate = args.conversion_rate or 1

	si.append("items", {
		"item_code": args.item or args.item_code or "_Test Item",
		"gst_hsn_code": "999800",
		"warehouse": args.warehouse or "_Test Warehouse - _TC",
		"qty": args.qty or 1,
		"rate": args.rate if args.get("rate") is not None else 100,
		"income_account": args.income_account or "Sales - _TC",
		"expense_account": args.expense_account or "Cost of Goods Sold - _TC",
		"cost_center": args.cost_center or "_Test Cost Center - _TC",
		"serial_no": args.serial_no
	})

	if not args.do_not_save:
		si.insert()
		if not args.do_not_submit:
			si.submit()
		else:
			si.payment_schedule = []
	else:
		si.payment_schedule = []

	return si

def create_sales_invoice_against_cost_center(**args):
	si = frappe.new_doc("Sales Invoice")
	args = frappe._dict(args)
	if args.posting_date:
		si.set_posting_time = 1
	si.posting_date = args.posting_date or nowdate()

	si.company = args.company or "_Test Company"
	si.cost_center = args.cost_center or "_Test Cost Center - _TC"
	si.customer = args.customer or "_Test Customer"
	si.debit_to = args.debit_to or "Debtors - _TC"
	si.update_stock = args.update_stock
	si.is_pos = args.is_pos
	si.is_return = args.is_return
	si.return_against = args.return_against
	si.currency=args.currency or "INR"
	si.conversion_rate = args.conversion_rate or 1

	si.append("items", {
		"item_code": args.item or args.item_code or "_Test Item",
		"gst_hsn_code": "999800",
		"warehouse": args.warehouse or "_Test Warehouse - _TC",
		"qty": args.qty or 1,
		"rate": args.rate or 100,
		"income_account": "Sales - _TC",
		"expense_account": "Cost of Goods Sold - _TC",
		"cost_center": args.cost_center or "_Test Cost Center - _TC",
		"serial_no": args.serial_no
	})

	if not args.do_not_save:
		si.insert()
		if not args.do_not_submit:
			si.submit()
		else:
			si.payment_schedule = []
	else:
		si.payment_schedule = []

	return si


test_dependencies = ["Journal Entry", "Contact", "Address"]
test_records = frappe.get_test_records('Sales Invoice')

def get_outstanding_amount(against_voucher_type, against_voucher, account, party, party_type):
	bal = flt(frappe.db.sql("""
		select sum(debit_in_account_currency) - sum(credit_in_account_currency)
		from `tabGL Entry`
		where against_voucher_type=%s and against_voucher=%s
		and account = %s and party = %s and party_type = %s""",
		(against_voucher_type, against_voucher, account, party, party_type))[0][0] or 0.0)

	if against_voucher_type == 'Purchase Invoice':
		bal = bal * -1

	return bal

def get_taxes_and_charges():
	return [{
	"account_head": "_Test Account Excise Duty - TCP1",
	"charge_type": "On Net Total",
	"cost_center": "Main - TCP1",
	"description": "Excise Duty",
	"doctype": "Sales Taxes and Charges",
	"idx": 1,
	"included_in_print_rate": 1,
	"parentfield": "taxes",
	"rate": 12
	},
	{
	"account_head": "_Test Account Education Cess - TCP1",
	"charge_type": "On Previous Row Amount",
	"cost_center": "Main - TCP1",
	"description": "Education Cess",
	"doctype": "Sales Taxes and Charges",
	"idx": 2,
	"included_in_print_rate": 1,
	"parentfield": "taxes",
	"rate": 2,
	"row_id": 1
   }]