diff --git a/erpnext/manufacturing/report/job_card_summary/test_job_card_summary.py b/erpnext/manufacturing/report/job_card_summary/test_job_card_summary.py
new file mode 100644
index 00000000000..81af722ad50
--- /dev/null
+++ b/erpnext/manufacturing/report/job_card_summary/test_job_card_summary.py
@@ -0,0 +1,76 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+
+import frappe
+from frappe.utils import add_days, today
+
+from erpnext.manufacturing.doctype.work_order.test_work_order import make_wo_order_test_record
+from erpnext.manufacturing.report.job_card_summary.job_card_summary import execute
+from erpnext.tests.utils import ERPNextTestSuite
+
+
+class TestJobCardSummary(ERPNextTestSuite):
+	def setUp(self):
+		# `_Test FG Item 2` has a default active BOM with operations, so submitting a
+		# Work Order for it auto-creates Job Cards (one per operation).
+		self.work_order = make_wo_order_test_record(item="_Test FG Item 2", qty=2)
+		self.job_cards = frappe.get_all(
+			"Job Card",
+			filters={"work_order": self.work_order.name},
+			fields=["name", "operation", "workstation", "production_item", "status"],
+		)
+
+	def run_report(self, **extra):
+		filters = frappe._dict(
+			{
+				"company": "_Test Company",
+				"from_date": add_days(today(), -1),
+				"to_date": add_days(today(), 1),
+			}
+		)
+		filters.update(extra)
+		return execute(filters)[1]
+
+	def rows_for_work_order(self, rows):
+		return [row for row in rows if row.get("work_order") == self.work_order.name]
+
+	def test_job_cards_are_listed(self):
+		self.assertTrue(self.job_cards, "Work Order did not produce any Job Cards")
+
+		rows = self.rows_for_work_order(self.run_report())
+		self.assertEqual(len(rows), len(self.job_cards))
+
+		reported_names = {row.get("name") for row in rows}
+		self.assertEqual(reported_names, {jc.name for jc in self.job_cards})
+
+		# Fresh (unsubmitted) job cards are reported as Open, and each row carries the
+		# operation / workstation / production item pulled from the Job Card.
+		for jc in self.job_cards:
+			row = next(row for row in rows if row.get("name") == jc.name)
+			self.assertEqual(row.get("status"), "Open")
+			self.assertEqual(row.get("operation"), jc.operation)
+			self.assertEqual(row.get("workstation"), jc.workstation)
+			self.assertEqual(row.get("production_item"), jc.production_item)
+
+	def test_operation_filter_scopes_rows(self):
+		operation = self.job_cards[0].operation
+		matching = {jc.name for jc in self.job_cards if jc.operation == operation}
+
+		rows = self.rows_for_work_order(self.run_report(operation=operation))
+		self.assertEqual({row.get("name") for row in rows}, matching)
+
+	def test_status_filter(self):
+		open_rows = self.rows_for_work_order(self.run_report(status="Open"))
+		self.assertEqual({row.get("name") for row in open_rows}, {jc.name for jc in self.job_cards})
+
+		# None of the freshly created job cards are Completed yet.
+		completed_rows = self.rows_for_work_order(self.run_report(status="Completed"))
+		self.assertEqual(completed_rows, [])
+
+	def test_date_filter_excludes_out_of_range(self):
+		# Job Card posting_date defaults to today; a past-only window should exclude them.
+		rows = self.rows_for_work_order(
+			self.run_report(from_date=add_days(today(), -10), to_date=add_days(today(), -5))
+		)
+		self.assertEqual(rows, [])