test: add unit test for common party with foreign currency

erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py

@@ -51,7 +51,7 @@ class TestSalesInvoice(FrappeTestCase):
 		from erpnext.stock.doctype.stock_ledger_entry.test_stock_ledger_entry import create_items
 
 		create_items(["_Test Internal Transfer Item"], uoms=[{"uom": "Box", "conversion_factor": 10}])
-		create_internal_parties()
+		# create_internal_parties()
 		setup_accounts()
 		frappe.db.set_single_value("Accounts Settings", "acc_frozen_upto", None)
 
@@ -4045,6 +4045,93 @@ class TestSalesInvoice(FrappeTestCase):
 		self.assertEqual(len(actual), 4)
 		self.assertEqual(expected, actual)
 
+	def test_common_party_with_foreign_currency_jv(self):
+		from erpnext.accounts.doctype.account.test_account import create_account
+		from erpnext.accounts.doctype.opening_invoice_creation_tool.test_opening_invoice_creation_tool import (
+			make_customer,
+		)
+		from erpnext.accounts.doctype.party_link.party_link import create_party_link
+		from erpnext.buying.doctype.supplier.test_supplier import create_supplier
+		from erpnext.setup.utils import get_exchange_rate
+
+		creditors = create_account(
+			account_name="Creditors USD",
+			parent_account="Accounts Payable - _TC",
+			company="_Test Company",
+			account_currency="USD",
+			account_type="Payable",
+		)
+		debtors = create_account(
+			account_name="Debtors USD",
+			parent_account="Accounts Receivable - _TC",
+			company="_Test Company",
+			account_currency="USD",
+			account_type="Receivable",
+		)
+
+		# create a customer
+		customer = make_customer(customer="_Test Common Party USD")
+		cust_doc = frappe.get_doc("Customer", customer)
+		cust_doc.default_currency = "USD"
+		test_account_details = {
+			"company": "_Test Company",
+			"account": debtors,
+		}
+		cust_doc.append("accounts", test_account_details)
+		cust_doc.save()
+
+		# create a supplier
+		supplier = create_supplier(supplier_name="_Test Common Party USD").name
+		supp_doc = frappe.get_doc("Supplier", supplier)
+		supp_doc.default_currency = "USD"
+		test_account_details = {
+			"company": "_Test Company",
+			"account": creditors,
+		}
+		supp_doc.append("accounts", test_account_details)
+		supp_doc.save()
+
+		# enable common party accounting
+		frappe.db.set_single_value("Accounts Settings", "enable_common_party_accounting", 1)
+
+		# create a party link between customer & supplier
+		party_link = create_party_link("Supplier", supplier, customer)
+
+		# create a sales invoice
+		si = create_sales_invoice(
+			customer=customer,
+			currency="USD",
+			conversion_rate=get_exchange_rate("USD", "INR"),
+			debit_to=debtors,
+			do_not_save=1,
+		)
+		si.party_account_currency = "USD"
+		si.save()
+		si.submit()
+
+		# check outstanding of sales invoice
+		si.reload()
+		self.assertEqual(si.status, "Paid")
+		self.assertEqual(flt(si.outstanding_amount), 0.0)
+
+		# check creation of journal entry
+		jv = frappe.get_all(
+			"Journal Entry Account",
+			{
+				"account": si.debit_to,
+				"party_type": "Customer",
+				"party": si.customer,
+				"reference_type": si.doctype,
+				"reference_name": si.name,
+			},
+			pluck="credit_in_account_currency",
+		)
+		self.assertTrue(jv)
+		self.assertEqual(jv[0], si.grand_total)
+
+		party_link.delete()
+		frappe.db.set_single_value("Accounts Settings", "enable_common_party_accounting", 0)
+
 
 def set_advance_flag(company, flag, default_account):
 	frappe.db.set_value(