diff --git a/users/tests.py b/users/tests.py
index 7ce503c..78dda87 100644
--- a/users/tests.py
+++ b/users/tests.py
@@ -1,3 +1,38 @@
 from django.test import TestCase
+from django.contrib.auth.models import User
+from .models import Profile
 
-# Create your tests here.
+# Unit Testing
+
+# The purpose of these unit tests is to ensure that the individual units of Users application
+# are functioning correctly in isolation.
+
+
+class UserAndProfileTestCase(TestCase):
+    def setUp(self):
+        # Create a user object
+        self.user = User.objects.create_user(
+            'testuser', 'test@example.com', 'testpassword')
+        # Create a profile object linked to the user
+        self.profile = Profile.objects.create(
+            user=self.user, address='123 Test St', avatar='users/default.jpg')
+
+    def test_user_creation(self):
+        """Test the user creation process"""
+        user = User.objects.get(username='testuser')
+        self.assertIsNotNone(user)
+        self.assertEqual(user.email, 'test@example.com')
+
+    def test_user_profile(self):
+        """Test the user's linked profile"""
+        user = User.objects.get(username='testuser')
+        self.assertEqual(user.profile.address, '123 Test St')
+
+    def test_profile_creation(self):
+        """Test the profile creation process"""
+        self.assertEqual(self.profile.address, '123 Test St')
+        self.assertEqual(self.profile.avatar, 'users/default.jpg')
+
+    def test_profile_link_to_user(self):
+        """Test the one-to-one link between User and Profile"""
+        self.assertEqual(self.profile.user, self.user)