diff --git a/tests/test_paths_return_200.py b/tests/test_paths_return_200.py
new file mode 100644
index 0000000..c126bfb
--- /dev/null
+++ b/tests/test_paths_return_200.py
@@ -0,0 +1,89 @@
+import django
+import os
+from django.test import TestCase
+from django.urls import reverse
+from datetime import datetime
+from zoneinfo import ZoneInfo
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "timetracker.settings")
+django.setup()
+from django.conf import settings
+
+from games.models import Game, Edition, Purchase, Session, Platform
+
+ZONEINFO = ZoneInfo(settings.TIME_ZONE)
+
+
+class PathWorksTest(TestCase):
+    def setUp(self) -> None:
+        pl = Platform(name="Test Platform")
+        pl.save()
+        g = Game(name="The Test Game")
+        g.save()
+        e = Edition(game=g, name="The Test Game Edition", platform=pl)
+        e.save()
+        p = Purchase(
+            edition=e,
+            platform=pl,
+            date_purchased=datetime(2022, 9, 26, 14, 58, tzinfo=ZONEINFO),
+        )
+        p.save()
+        s = Session(
+            purchase=p,
+            timestamp_start=datetime(2022, 9, 26, 14, 58, tzinfo=ZONEINFO),
+            timestamp_end=datetime(2022, 9, 26, 17, 38, tzinfo=ZONEINFO),
+        )
+        s.save()
+        self.testSession = s
+        return super().setUp()
+
+    def test_add_device_returns_200(self):
+        url = reverse("add_device")
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_add_platform_returns_200(self):
+        url = reverse("add_platform")
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_add_game_returns_200(self):
+        url = reverse("add_game")
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_add_edition_returns_200(self):
+        url = reverse("add_edition")
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_add_purchase_returns_200(self):
+        url = reverse("add_purchase")
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_add_session_returns_200(self):
+        url = reverse("add_session")
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_edit_session_returns_200(self):
+        id = self.testSession.id
+        url = reverse("edit_session", args=[id])
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_view_game_returns_200(self):
+        url = reverse("view_game", args=[1])
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_edit_game_returns_200(self):
+        url = reverse("edit_game", args=[1])
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_list_sessions_returns_200(self):
+        url = reverse("list_sessions")
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
diff --git a/tests/test_session_formatting.py b/tests/test_session_formatting.py
new file mode 100644
index 0000000..f3b3a5c
--- /dev/null
+++ b/tests/test_session_formatting.py
@@ -0,0 +1,38 @@
+import django
+import os
+from django.test import TestCase
+from django.db import models
+from datetime import datetime
+from zoneinfo import ZoneInfo
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "timetracker.settings")
+django.setup()
+from django.conf import settings
+from games.models import Game, Edition, Purchase, Session
+
+ZONEINFO = ZoneInfo(settings.TIME_ZONE)
+
+
+class FormatDurationTest(TestCase):
+    def setUp(self) -> None:
+        return super().setUp()
+
+    def test_duration_format(self):
+        g = Game(name="The Test Game")
+        g.save()
+        e = Edition(game=g, name="The Test Game Edition")
+        e.save()
+        p = Purchase(
+            edition=e, date_purchased=datetime(2022, 9, 26, 14, 58, tzinfo=ZONEINFO)
+        )
+        p.save()
+        s = Session(
+            purchase=p,
+            timestamp_start=datetime(2022, 9, 26, 14, 58, tzinfo=ZONEINFO),
+            timestamp_end=datetime(2022, 9, 26, 17, 38, tzinfo=ZONEINFO),
+        )
+        s.save()
+        self.assertEqual(
+            s.duration_formatted(),
+            "02:40",
+        )