diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 3c22927..48bf223 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -42,3 +42,5 @@ jobs:
         coverage run -m pytest
         coverage report
 
+
+
diff --git a/hello.py b/hello.py
deleted file mode 100644
index c36df38..0000000
--- a/hello.py
+++ /dev/null
@@ -1,12 +0,0 @@
-# hello.py
-from flask import Flask
-
-app = Flask(__name__)
-
-@app.route('/')
-def hello():
-    return 'Hello, World!'
-
-
-if __name__ == '__main__':
-    app.run()
\ No newline at end of file
diff --git a/test_hello.py b/test_hello.py
index 22ef81e..cf183e9 100644
--- a/test_hello.py
+++ b/test_hello.py
@@ -1,8 +1,18 @@
-# test_hello.py
-from hello import app
+import unittest
 
-def test_hello():
-    response = app.test_client().get('/')
+def add(a, b):
+    return a + b
 
-    assert response.status_code == 200
-    assert response.data == b'Hello, World!'
\ No newline at end of file
+class TestAddFunction(unittest.TestCase):
+    def test_add_positive_numbers(self):
+        self.assertEqual(add(1, 2), 3)
+
+    def test_add_negative_numbers(self):
+        self.assertEqual(add(-1, -2), -3)
+
+    def test_add_mixed_numbers(self):
+        self.assertEqual(add(1, -2), -1)
+        self.assertEqual(add(-1, 2), 1)
+
+if __name__ == '__main__':
+    unittest.main()