def test_teacher_change_an_open_event_162186(self):
        self.ps.test_updates['name'] = 'tutor_event_teacher' \
                                       + inspect.currentframe().f_code.co_name[4:]
        self.ps.test_updates['tags'] = ['tutor', 'event', 'teacher',
                                        '162186']
        self.ps.test_updates['passed'] = False

        # Test steps and verification assertions
        assignment_name = 'event_015_%s' % randint(100, 500)
        assignment = Assignment()

        today = datetime.date.today()
        finish = randint(1, 5)
        begin = today.strftime('%m/%d/%Y')
        end = (today + datetime.timedelta(days=finish)) \
            .strftime('%m/%d/%Y')

        # Create an open assignment
        self.teacher.add_assignment(
            assignment='event',
            args={
                'title': assignment_name,
                'description': 'description',
                'periods': {'all': (begin, end)},
                'status': 'publish',
            }
        )

        # Find the open Event on the calendar
        self.teacher.wait.until(
            expect.presence_of_element_located(
                (By.CLASS_NAME, 'month-wrapper')
            )
        )
        self.teacher.find(
            By.XPATH,
            '//label[contains(text(),"{0}")]'.format(assignment_name)
        ).click()
        self.teacher.wait.until(
            expect.element_to_be_clickable(
                (By.ID, 'edit-assignment-button')
            )
        ).click()

        # Change the title
        self.teacher.find(
            By.ID, "reading-title"
        ).send_keys("changed")

        # Change the description
        self.teacher.find(
            By.CSS_SELECTOR, ".assignment-description>.form-control"
        ).send_keys("changed")

        # Set new due dates
        end = randint(1, 5)
        closes_on = (today + datetime.timedelta(days=end)) \
            .strftime('%m/%d/%Y')
        assignment.assign_date(
            driver=self.teacher.driver, date=closes_on, is_all=True,
            target='due'
        )

        # Publish
        self.teacher.find(
            By.XPATH, '//button[contains(@class,"-publish")]'
        ).click()
        sleep(1)

        # Find the new title on the calendar
        try:
            self.teacher.find(
                By.XPATH,
                '//label[contains(text(),"{0}")]'.format(
                    assignment_name + 'changed')
            )
        except NoSuchElementException:
            self.teacher.find(
                By.XPATH,
                '//a[contains(@class,"header-control next")]'
            ).click()
            self.teacher.find(
                By.XPATH,
                '//label[contains(text(),"{0}")]'.format(
                    assignment_name + 'changed')
            )

        self.ps.test_updates['passed'] = True