test: add coverage for BOM Search report

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

erpnext/stock/report/bom_search/test_bom_search.py

@@ -0,0 +1,28 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+import frappe
+
+from erpnext.stock.doctype.item.test_item import make_item
+from erpnext.stock.report.bom_search.bom_search import execute
+from erpnext.tests.utils import ERPNextTestSuite
+
+
+class TestBomSearch(ERPNextTestSuite):
+	def run_report(self, **extra):
+		filters = frappe._dict({"search_sub_assemblies": 0})
+		filters.update(extra)
+		return execute(filters)[1]
+
+	def test_bom_found_by_contained_item(self):
+		raw_material = make_item(properties={"is_stock_item": 1}).name
+		finished_good = make_item(properties={"is_stock_item": 1}).name
+
+		bom = frappe.get_doc(doctype="BOM", item=finished_good, company="_Test Company", currency="INR")
+		bom.append("items", {"item_code": raw_material, "qty": 1})
+		bom.insert()
+		bom.submit()
+
+		rows = self.run_report(item1=raw_material)
+		bom_names = [row[0] for row in rows]
+		self.assertIn(bom.name, bom_names)