diff --git a/src/iterative_sorting/test_iterative.py b/src/iterative_sorting/test_iterative.py
index df11b648..8ce99670 100644
--- a/src/iterative_sorting/test_iterative.py
+++ b/src/iterative_sorting/test_iterative.py
@@ -13,7 +13,8 @@ def test_selection_sort(self):
         self.assertEqual(selection_sort(arr2), [])
         self.assertEqual(selection_sort(arr3), [0,1,2,3,4,5])
         self.assertEqual(selection_sort(arr4), sorted(arr4))
-
+ 
+# this is a test for sort function 
     def test_bubble_sort(self):
         arr1 = [1, 5, 8, 4, 2, 9, 6, 0, 3, 7]
         arr2 = []
diff --git a/src/recursive_sorting/test_recursive.py b/src/recursive_sorting/test_recursive.py
index 576d3c87..ba5df968 100644
--- a/src/recursive_sorting/test_recursive.py
+++ b/src/recursive_sorting/test_recursive.py
@@ -1,7 +1,7 @@
 import unittest
 import random
 from recursive_sorting import *
-
+#test case 1
 class RecursiveSortingTests(unittest.TestCase):
     def test_merge_sort(self):
         arr1 = [1, 5, 8, 4, 2, 9, 6, 0, 3, 7]
@@ -39,4 +39,4 @@ def test_merge_sort(self):
 
 
 if __name__ == '__main__':
-    unittest.main()
\ No newline at end of file
+    unittest.main()