问在appium中，如何使用一个测试作为对另一个测试的依赖，而不是一直运行它？

EN

import os, unittest, time
from appium import webdriver
from time import sleep

class Tests(unittest.TestCase):
    def setUp(self):
        desired_caps = {}
        desired_caps['platformName'] = 'Android'
        desired_caps['platformVersion'] = '5.1'
        desired_caps['deviceName'] = '0429058934'
        desired_caps['app'] = os.path.abspath(os.path.join(os.path.dirname(__file__),'mypath'))
        desired_caps['appPackage'] = ''
        desired_caps['appActivity'] = '.MainActivity'
        desired_caps['fullReset'] = True
        self.driver = webdriver.Remote('http://localhost:4723/wd/hub', desired_caps)
        self.driver.implicitly_wait(30)

    def tearDown(self):
        self.driver.quit()

    def first_run(self):
        self.driver.find_element_by_id("p_agreement_btn").click()
        next = self.driver.find_element_by_id("next_text")
        next.click()
        next.click()
        next.click()
        next.click()
        self.driver.find_element_by_id("btn_ok").click()

    def test_optimization(self):
        self.driver.find_element_by_id("new_powerpro_tab_view_text").click()
        self.driver.find_element_by_id("optimization_button").click()       

if __name__ == '__main__':
    suite = unittest.TestLoader().loadTestsFromTestCase(Tests)
    unittest.TextTestRunner(verbosity=2).run(suite)