Merge pull request #56716 from frappe/chore/test-voucher-wise-balance

test: Voucher-wise Balance report coverage

erpnext/accounts/report/voucher_wise_balance/test_voucher_wise_balance.py

@@ -0,0 +1,63 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+import frappe
+
+from erpnext.accounts.doctype.journal_entry.test_journal_entry import make_journal_entry
+from erpnext.accounts.report.voucher_wise_balance.voucher_wise_balance import execute
+from erpnext.tests.utils import ERPNextTestSuite
+
+
+class TestVoucherWiseBalance(ERPNextTestSuite):
+	def run_report(self, **extra):
+		filters = frappe._dict(
+			{
+				"company": "_Test Company",
+				"from_date": "2026-01-01",
+				"to_date": "2026-12-31",
+			}
+		)
+		filters.update(extra)
+		return execute(filters)[1]
+
+	def find_row(self, data, voucher_no):
+		for row in data:
+			if row.get("voucher_no") == voucher_no:
+				return row
+		return None
+
+	def test_balanced_voucher_not_flagged(self):
+		jv = make_journal_entry(
+			"Sales - _TC", "_Test Bank - _TC", 1000, submit=True, posting_date="2026-06-01"
+		)
+
+		data = self.run_report()
+		self.assertIsNone(
+			self.find_row(data, jv.name),
+			msg="A balanced voucher (debit == credit) must not be flagged.",
+		)
+
+	def test_imbalanced_voucher_flagged(self):
+		jv = make_journal_entry(
+			"Sales - _TC", "_Test Bank - _TC", 1000, submit=True, posting_date="2026-06-01"
+		)
+
+		# Tamper one GL Entry: drop the debit side so debit != credit for this voucher.
+		gle_name = frappe.db.get_value(
+			"GL Entry",
+			{"voucher_no": jv.name, "is_cancelled": 0, "debit": [">", 0]},
+			"name",
+		)
+		self.assertIsNotNone(gle_name, msg="Expected a debit GL Entry for the journal entry.")
+		frappe.db.set_value("GL Entry", gle_name, {"debit": 400, "debit_in_account_currency": 400})
+
+		data = self.run_report()
+		row = self.find_row(data, jv.name)
+		self.assertIsNotNone(row, msg="An imbalanced voucher must be flagged by the report.")
+
+		self.assertEqual(row.get("voucher_type"), "Journal Entry")
+		self.assertEqual(row.get("credit"), 1000)
+		self.assertEqual(row.get("debit"), 400)
+		self.assertNotEqual(
+			row.get("debit"), row.get("credit"), msg="Flagged rows must have debit != credit."
+		)