diff --git a/erpnext/hr/doctype/attendance/test_attendance.py b/erpnext/hr/doctype/attendance/test_attendance.py
index 118cc987efb..c74967d213e 100644
--- a/erpnext/hr/doctype/attendance/test_attendance.py
+++ b/erpnext/hr/doctype/attendance/test_attendance.py
@@ -1,10 +1,9 @@
 # Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors and Contributors
 # See license.txt
 
-import unittest
-
 import frappe
-from frappe.utils import add_days, get_first_day, getdate, nowdate
+from frappe.tests.utils import FrappeTestCase
+from frappe.utils import add_days, get_first_day, getdate, now_datetime, nowdate
 
 from erpnext.hr.doctype.attendance.attendance import (
 	get_month_map,
@@ -16,7 +15,7 @@ from erpnext.hr.doctype.leave_application.test_leave_application import get_firs
 
 test_records = frappe.get_test_records('Attendance')
 
-class TestAttendance(unittest.TestCase):
+class TestAttendance(FrappeTestCase):
 	def test_mark_absent(self):
 		employee = make_employee("test_mark_absent@example.com")
 		date = nowdate()
@@ -74,12 +73,14 @@ class TestAttendance(unittest.TestCase):
 		self.assertNotIn(first_sunday, unmarked_days)
 
 	def test_unmarked_days_as_per_joining_and_relieving_dates(self):
-		first_day = get_first_day(getdate())
+		now = now_datetime()
+		previous_month = now.month - 1
+		first_day = now.replace(day=1).replace(month=previous_month).date()
 
 		doj = add_days(first_day, 1)
 		relieving_date = add_days(first_day, 5)
 		employee = make_employee('test_unmarked_days_as_per_doj@example.com', date_of_joining=doj,
-			date_of_relieving=relieving_date)
+			relieving_date=relieving_date)
 		frappe.db.delete('Attendance', {'employee': employee})
 
 		attendance_date = add_days(first_day, 2)
@@ -104,4 +105,4 @@ def get_month_name(date):
 	month_number = date.month
 	for month, number in get_month_map().items():
 		if number == month_number:
-			return month
\ No newline at end of file
+			return month
diff --git a/erpnext/hr/doctype/leave_application/test_leave_application.py b/erpnext/hr/doctype/leave_application/test_leave_application.py
index 39356bdcf18..38b8eef0c9b 100644
--- a/erpnext/hr/doctype/leave_application/test_leave_application.py
+++ b/erpnext/hr/doctype/leave_application/test_leave_application.py
@@ -791,4 +791,4 @@ def get_first_sunday(holiday_list):
 		order by holiday_date
 	""", (holiday_list, month_start_date, month_end_date))[0][0]
 
-	return first_sunday
\ No newline at end of file
+	return first_sunday
diff --git a/erpnext/projects/report/project_profitability/test_project_profitability.py b/erpnext/projects/report/project_profitability/test_project_profitability.py
index 3396a2193cf..c80f301962c 100644
--- a/erpnext/projects/report/project_profitability/test_project_profitability.py
+++ b/erpnext/projects/report/project_profitability/test_project_profitability.py
@@ -2,6 +2,7 @@
 import unittest
 
 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
@@ -13,7 +14,7 @@ from erpnext.projects.doctype.timesheet.timesheet import make_salary_slip, make_
 from erpnext.projects.report.project_profitability.project_profitability import execute
 
 
-class TestProjectProfitability(unittest.TestCase):
+class TestProjectProfitability(FrappeTestCase):
 	def setUp(self):
 		frappe.db.sql('delete from `tabTimesheet`')
 		emp = make_employee('test_employee_9@salary.com', company='_Test Company')
@@ -68,6 +69,3 @@ class TestProjectProfitability(unittest.TestCase):
 
 		fractional_cost = self.salary_slip.base_gross_pay * utilization
 		self.assertEqual(fractional_cost, row.fractional_cost)
-
-	def tearDown(self):
-		frappe.db.rollback()