test: Added test for monthly attendance report (#29989)

Co-authored-by: Rucha Mahabal <ruchamahabal2@gmail.com>

erpnext/hr/report/monthly_attendance_sheet/test_monthly_attendance_sheet.py

@@ -0,0 +1,45 @@
+import frappe
+from dateutil.relativedelta import relativedelta
+
+from frappe.tests.utils import FrappeTestCase
+from frappe.utils import now_datetime
+
+from erpnext.hr.doctype.attendance.attendance import mark_attendance
+from erpnext.hr.doctype.employee.test_employee import make_employee
+from erpnext.hr.report.monthly_attendance_sheet.monthly_attendance_sheet import execute
+
+
+class TestMonthlyAttendanceSheet(FrappeTestCase):
+	def setUp(self):
+		self.employee = make_employee("test_employee@example.com")
+		frappe.db.delete('Attendance', {'employee': self.employee})
+
+	def test_monthly_attendance_sheet_report(self):
+		now = now_datetime()
+		previous_month = now.month - 1
+		previous_month_first = now.replace(day=1).replace(month=previous_month).date()
+
+		company = frappe.db.get_value('Employee', self.employee, 'company')
+
+		# mark different attendance status on first 3 days of previous month
+		mark_attendance(self.employee, previous_month_first, 'Absent')
+		mark_attendance(self.employee, previous_month_first + relativedelta(days=1), 'Present')
+		mark_attendance(self.employee, previous_month_first + relativedelta(days=2), 'On Leave')
+
+		filters = frappe._dict({
+			'month': previous_month,
+			'year': now.year,
+			'company': company,
+		})
+		report = execute(filters=filters)
+		employees = report[1][0]
+		datasets = report[3]['data']['datasets']
+		absent = datasets[0]['values']
+		present = datasets[1]['values']
+		leaves = datasets[2]['values']
+
+		# ensure correct attendance is reflect on the report
+		self.assertIn(self.employee, employees)
+		self.assertEqual(absent[0], 1)
+		self.assertEqual(present[1], 1)
+		self.assertEqual(leaves[2], 1)