added testcase 3

Author: pyBlockDev

faculty_test.py

@@ -10,6 +10,8 @@ def test1(self):
         self.assertEqual(my_faculty(1), 1)
     def test1(self):
         self.assertEqual(my_faculty(2), 2)
+    def test1(self):
+        self.assertEqual(my_faculty(3), 6)
     def testEnviron(self):
         self.assertEqual(my_faculty("NFAK"), 1)