Add function-to-be-test and the corresponding unit test

Author: fungss

funcs/func.py

@@ -1,2 +1,7 @@
 def sum(x: float, y: float) -> float:
-    return x + y
+    return x + y
+
+def misformatted_func(
+var1, var2, var3
+):
+    print(var1, var2, var3)

tests/test_func.py

@@ -1,10 +1,16 @@
 import unittest
+from unittest.mock import patch
 from funcs import func
 
 class Test(unittest.TestCase):
 
     def test_sum(self):
         self.assertEqual(func.sum(2,3), 5)
 
+    @patch('funcs.func.misformatted_func')
+    def test_misformatted_func(self, mock_misformatted_func):
+        func.misformatted_func("one", "two", "three")
+        mock_misformatted_func.assert_called_with("one", "two", "three")
+
 if __name__ == "__main__":
     unittest.main()