def test_returns_correct_object(self):
     self.assertEquals(type(gh.remove_last_char("string,")), str)
 def test_returns_correct_value(self):
     self.assertEquals(gh.remove_last_char("string,"), "string")
     self.assertEquals(gh.remove_last_char("string."), "string")
     self.assertEquals(gh.remove_last_char("string"), "string")