diff --git a/administration/tests.py b/administration/tests.py
index 6ba9e50b788c568dd4ce4661922f25283005647b..cc7b72df30e9b727df09ed8e055755dd5751577f 100644
--- a/administration/tests.py
+++ b/administration/tests.py
@@ -10,7 +10,9 @@ from app.models import Category, Materi, LaporanMateri
 from authentication.models import User
 from bs4 import BeautifulSoup
 
-from datetime import datetime
+from datetime import datetime, timedelta
+
+from .forms import PeriodForm
 
 EDIT_ENDPOINT = "/edit"
 ERROR_403_MESSAGE = 'Kamu harus login untuk mengakses halaman ini'
@@ -1659,3 +1661,50 @@ class EditKontributorStatusTests(TestCase):
         self.assertEqual(response.status_code, 403)
 
 
+class PeriodFormTests(TestCase):
+
+    def test_validation_error_when_start_date_is_none(self):
+        data = {
+            'start_date': None,
+            'end_date': datetime.now(),
+        }
+        form = PeriodForm(data)
+        self.assertFalse(form.is_valid())
+        self.assertEqual(
+            form["start_date"].errors,
+            ['masukan waktu mulai']
+        )
+
+    def test_validation_error_when_end_date_is_none(self):
+        data = {
+            'start_date': datetime.now(),
+            'end_date': None,
+        }
+        form = PeriodForm(data)
+        self.assertFalse(form.is_valid())
+        self.assertEqual(
+            form["end_date"].errors,
+            ['masukan waktu selesai']
+        )
+
+    def test_validation_error_when_start_date_greater_than_end_date(self):
+        current_time = datetime.now()
+        data = {
+            'start_date': current_time + timedelta(days = 1),
+            'end_date': current_time,
+        }
+        form = PeriodForm(data)
+        self.assertFalse(form.is_valid())
+        self.assertEqual(
+            form["end_date"].errors,
+            ['waktu selesai sebelum waktu mulai']
+        )
+
+    def test_form_valid_when_data_valid(self):
+        current_time = datetime.now()
+        data = {
+            'start_date': current_time - timedelta(days = 1),
+            'end_date': current_time,
+        }
+        form = PeriodForm(data)
+        self.assertTrue(form.is_valid())
diff --git a/digipus/__pycache__/settings.cpython-36.pyc b/digipus/__pycache__/settings.cpython-36.pyc
index 1cf78ac5dc695e4dca1c09a4b10db034aec54534..43d2d1c4169e7113ebfa287197b9840fd637a652 100644
Binary files a/digipus/__pycache__/settings.cpython-36.pyc and b/digipus/__pycache__/settings.cpython-36.pyc differ