diff --git a/erpnext/hr/doctype/job_opening/test_job_opening.py b/erpnext/hr/doctype/job_opening/test_job_opening.py
index a72a6eb..e991054 100644
--- a/erpnext/hr/doctype/job_opening/test_job_opening.py
+++ b/erpnext/hr/doctype/job_opening/test_job_opening.py
@@ -3,8 +3,77 @@
 
 import unittest
 
-# test_records = frappe.get_test_records('Job Opening')
+import frappe
+from frappe.tests.utils import FrappeTestCase
+from frappe.utils import add_days, getdate
+
+from erpnext.hr.doctype.employee.test_employee import make_employee
+from erpnext.hr.doctype.staffing_plan.test_staffing_plan import make_company
 
 
-class TestJobOpening(unittest.TestCase):
-	pass
+class TestJobOpening(FrappeTestCase):
+	def setUp(self):
+		frappe.db.delete("Staffing Plan")
+		frappe.db.delete("Staffing Plan Detail")
+		frappe.db.delete("Job Opening")
+
+		make_company("_Test Opening Company", "_TOC")
+		frappe.db.delete("Employee", {"company": "_Test Opening Company"})
+
+	def test_vacancies_fulfilled(self):
+		make_employee(
+			"test_job_opening@example.com", company="_Test Opening Company", designation="Designer"
+		)
+
+		staffing_plan = frappe.get_doc(
+			{
+				"doctype": "Staffing Plan",
+				"company": "_Test Opening Company",
+				"name": "Test",
+				"from_date": getdate(),
+				"to_date": add_days(getdate(), 10),
+			}
+		)
+
+		staffing_plan.append(
+			"staffing_details",
+			{"designation": "Designer", "vacancies": 1, "estimated_cost_per_position": 50000},
+		)
+		staffing_plan.insert()
+		staffing_plan.submit()
+
+		self.assertEqual(staffing_plan.staffing_details[0].number_of_positions, 2)
+
+		# allows creating 1 job opening as per vacancy
+		opening_1 = get_job_opening()
+		opening_1.insert()
+
+		# vacancies as per staffing plan already fulfilled via job opening and existing employee count
+		opening_2 = get_job_opening(job_title="Designer New")
+		self.assertRaises(frappe.ValidationError, opening_2.insert)
+
+		# allows updating existing job opening
+		opening_1.status = "Closed"
+		opening_1.save()
+
+
+def get_job_opening(**args):
+	args = frappe._dict(args)
+
+	opening = frappe.db.exists("Job Opening", {"job_title": args.job_title or "Designer"})
+	if opening:
+		return frappe.get_doc("Job Opening", opening)
+
+	opening = frappe.get_doc(
+		{
+			"doctype": "Job Opening",
+			"job_title": "Designer",
+			"designation": "Designer",
+			"company": "_Test Opening Company",
+			"status": "Open",
+		}
+	)
+
+	opening.update(args)
+
+	return opening
diff --git a/erpnext/hr/doctype/staffing_plan/test_staffing_plan.py b/erpnext/hr/doctype/staffing_plan/test_staffing_plan.py
index a3adbbd..ac69c21 100644
--- a/erpnext/hr/doctype/staffing_plan/test_staffing_plan.py
+++ b/erpnext/hr/doctype/staffing_plan/test_staffing_plan.py
@@ -85,13 +85,16 @@
 	make_company()
 
 
-def make_company():
-	if frappe.db.exists("Company", "_Test Company 10"):
+def make_company(name=None, abbr=None):
+	if not name:
+		name = "_Test Company 10"
+
+	if frappe.db.exists("Company", name):
 		return
 
 	company = frappe.new_doc("Company")
-	company.company_name = "_Test Company 10"
-	company.abbr = "_TC10"
+	company.company_name = name
+	company.abbr = abbr or "_TC10"
 	company.parent_company = "_Test Company 3"
 	company.default_currency = "INR"
 	company.country = "Pakistan"