From 196482348d487da0fe4d47219b6abaafe66715f5 Mon Sep 17 00:00:00 2001
From: Nabin Hait <nabinhait@gmail.com>
Date: Wed, 1 Jul 2026 21:07:31 +0530
Subject: [PATCH] test: add coverage for Delivered Items To Be Billed report

---
 .../test_delivered_items_to_be_billed.py      | 89 +++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 erpnext/accounts/report/delivered_items_to_be_billed/test_delivered_items_to_be_billed.py

diff --git a/erpnext/accounts/report/delivered_items_to_be_billed/test_delivered_items_to_be_billed.py b/erpnext/accounts/report/delivered_items_to_be_billed/test_delivered_items_to_be_billed.py
new file mode 100644
index 00000000000..acdce19c105
--- /dev/null
+++ b/erpnext/accounts/report/delivered_items_to_be_billed/test_delivered_items_to_be_billed.py
@@ -0,0 +1,89 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+import frappe
+
+from erpnext.accounts.report.delivered_items_to_be_billed.delivered_items_to_be_billed import execute
+from erpnext.stock.doctype.delivery_note.mapper import make_sales_invoice
+from erpnext.stock.doctype.delivery_note.test_delivery_note import create_delivery_note
+from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
+from erpnext.tests.utils import ERPNextTestSuite
+
+
+class TestDeliveredItemsToBeBilled(ERPNextTestSuite):
+	def run_report(self, **extra):
+		filters = frappe._dict(
+			{
+				"company": "_Test Company",
+				"posting_date": "2026-06-30",
+			}
+		)
+		filters.update(extra)
+		return execute(filters)[1]
+
+	def stock_up_item(self):
+		make_stock_entry(
+			item_code="_Test Item",
+			target="Stores - _TC",
+			qty=20,
+			basic_rate=100,
+			posting_date="2026-05-25",
+		)
+
+	def test_unbilled_delivery_note_appears(self):
+		self.stock_up_item()
+		dn = create_delivery_note(
+			item_code="_Test Item",
+			warehouse="Stores - _TC",
+			qty=5,
+			rate=300,
+			customer="_Test Customer",
+			posting_date="2026-06-01",
+		)
+
+		rows = self.run_report(delivery_note=dn.name)
+		self.assertEqual(len(rows), 1)
+
+		row = rows[0]
+		self.assertEqual(row.name, dn.name)
+		self.assertEqual(row.customer, "_Test Customer")
+		self.assertEqual(row.item_code, "_Test Item")
+		self.assertEqual(row.amount, 1500)
+		self.assertEqual(row.billed_amount, 0)
+		self.assertEqual(row.returned_amount, 0)
+		self.assertEqual(row.pending_amount, 1500)
+
+	def test_fully_billed_delivery_note_drops_out(self):
+		self.stock_up_item()
+		dn = create_delivery_note(
+			item_code="_Test Item",
+			warehouse="Stores - _TC",
+			qty=5,
+			rate=300,
+			customer="_Test Customer",
+			posting_date="2026-06-01",
+		)
+
+		self.assertEqual(len(self.run_report(delivery_note=dn.name)), 1)
+
+		si = make_sales_invoice(dn.name)
+		si.posting_date = "2026-06-02"
+		si.set_posting_time = 1
+		si.insert()
+		si.submit()
+
+		self.assertEqual(self.run_report(delivery_note=dn.name), [])
+
+	def test_date_filter_excludes_later_delivery_notes(self):
+		self.stock_up_item()
+		dn = create_delivery_note(
+			item_code="_Test Item",
+			warehouse="Stores - _TC",
+			qty=5,
+			rate=300,
+			customer="_Test Customer",
+			posting_date="2026-07-15",
+		)
+
+		rows = self.run_report(delivery_note=dn.name, posting_date="2026-06-30")
+		self.assertEqual(rows, [])