Refactor test_add.py to simplify tests

Removed unittest framework and added basic arithmetic tests.

Author: ADIL8590

test_add.py

@@ -1,25 +1,12 @@
+#writing test python code for testing conda yml
+def test_addition():
+    assert 1 + 1 == 2
 
-# sum of numbers
-import unittest
-def addition(a,b):
-    return a+b
+def test_subtraction():
+    assert 5 - 3 == 2
 
-
-print(addition(2,3))  # Expected output: 
-# sum of numbers
-def addition(a, b):
-    """Return the sum of a and b."""
-    return a + b
-
-class TestAddition(unittest.TestCase):
-    def test_basic(self):
-        self.assertEqual(addition(2, 3), 5)
-        self.assertEqual(addition(-1, 1), 0)
-        self.assertEqual(addition(0, 0), 0)
-
-if __name__ == "__main__":
-    # Run the tests
-    unittest.main()
+def test_multiplication():
+    assert 5 * 2 == 10