'Helper method to create and verify and update based on the message.
Arguments:
message (str): Message to add to the update.'

def _create_and_verify_update(self, message):

    self.course_updates_page.visit()
    self.assertTrue(self.course_updates_page.is_new_update_button_present())
    self.course_updates_page.click_new_update_button()
    self.course_updates_page.submit_update(message)
    self.assertTrue(self.course_updates_page.is_first_update_message(message))
