test: assert total debit and credit for trx currency

erpnext/accounts/doctype/purchase_invoice/test_purchase_invoice.py

@@ -2656,6 +2656,36 @@ class TestPurchaseInvoice(IntegrationTestCase, StockTestMixin):
 			"Buying Settings", "bill_for_rejected_quantity_in_purchase_invoice", original_value
 		)
 
+	def test_trx_currency_debit_credit_for_high_precision(self):
+		exc_rate = 0.737517516
+		pi = make_purchase_invoice(
+			currency="USD", conversion_rate=exc_rate, qty=1, rate=2000, do_not_save=True
+		)
+		pi.supplier = "_Test Supplier USD"
+		pi.save().submit()
+
+		expected = (
+			("_Test Account Cost for Goods Sold - _TC", 1475.04, 0.0, 2000.0, 0.0, "USD", exc_rate),
+			("_Test Payable USD - _TC", 0.0, 1475.04, 0.0, 2000.0, "USD", exc_rate),
+		)
+
+		actual = frappe.db.get_all(
+			"GL Entry",
+			filters={"voucher_no": pi.name},
+			fields=[
+				"account",
+				"debit",
+				"credit",
+				"debit_in_transaction_currency",
+				"credit_in_transaction_currency",
+				"transaction_currency",
+				"transaction_exchange_rate",
+			],
+			order_by="account",
+			as_list=1,
+		)
+		self.assertEqual(actual, expected)
+
 
 def set_advance_flag(company, flag, default_account):
 	frappe.db.set_value(