Appium-Python随机进行n次i位数字四则运算

import os
import sys
import random
import unittest
from time import sleep
from appium import webdriver

class hh (unittest.TestCase):
    def test_addContent(self):
        desire_caps={}
        desire_caps['platformName']='Android'
        desire_caps['platformVersioin']='7.1.1'
        desire_caps['appPackage']='com.android.calculator2'
        desire_caps['appActivity']='.Calculator'
        desire_caps['deviceName']='ZY223MPGDF'

        driver = webdriver.Remote("http://127.0.0.1:4723/wd/hub",desire_caps)

        #随机进行n次四则运算
        num=[]
        num=['0','1','2','3','4','5','6','7','8','9']
        numEx='com.android.calculator2:id/digit_'
        operator=['com.android.calculator2:id/op_add','com.android.calculator2:id/op_sub',
                    'com.android.calculator2:id/op_mul','com.android.calculator2:id/op_div']
        clearButton='com.android.calculator2:id/clr'
        equalButton='com.android.calculator2:id/eq'

        i=random.randint(10,15)
        while i>=5:
            ii=random.randint(3,6)
            while ii>=3:
                randNum=random.randint(0,9)
                numClick=driver.find_element_by_id(numEx+num[randNum]).click()
                ii=ii-1
            randOP=random.randint(0,3)
            operaClick=driver.find_element_by_id(operator[randOP]).click()
            ii=random.randint(3,6)
            while ii>=3:
                randNum=random.randint(0,9)
                numClick=driver.find_element_by_id(numEx+num[randNum]).click()
                ii=ii-1
            equalClick=driver.find_element_by_id(equalButton).click()
            clearClick=driver.find_element_by_id(clearButton).click()
            sleep(1)
            i=i-1
        
        driver.quit()
if __name__ == "__main__":
    suite = unittest.TestLoader().loadTestsFromTestCase(hh)
    unittest.TextTestRunner(verbosity=2).run(suite)