Python+Appium自动化测试(13)-toast定位

一,前言

在app自动化测试的过程中经常会遇到需要对toast进行定位,最常见的就是定位toast或者获取toast的文案进行断言,如下图,通过定位"登录成功"的toast就可以断言今日头条登录用例是否通过。但toast区别于控件元素,无法获取焦点,不能通过uiautomatorviewer.bat、appium、weditor等工具定位,因此我们就需要通过别的方法来定位。

Python+Appium自动化测试(13)-toast定位

二,环境

  • windows 10
  • Android 10
  • appium 1.18.0 (desktop)
  • selenium 3.141.0
  • jdk 1.8

三,toast定位准备与定位方法

1,准备

注意:网上大量的博客都说定位toast需要使用uiautomator2,且需要安装appium-uiautomator2-driver。但我在以上环境定位toast时是不需要uiautomator2,也无需安装appium-uiautomator2-driver,且能定位成功!!!大家可以尝试,如果报错的话就老实按照下面步骤进行吧。

1.1,在Capablity里新增参数使用uiautomator2:

desired_caps['automationName'] = 'uiautomator2',

1.2,再安装appium-uiautomator2-driver,命令如下:

cnpm install appium-uiautomator2-driver

安装成功后在C:\Users\xxx\node_modules会出现如下文件:

_appium-uiautomator2-driver@1.12.0@appium-uiautomator2-driver
_appium-uiautomator2-server@1.10.0@appium-uiautomator2-server

2,定位方法

toast需使用xpath的方式进行定位

2.1,根据toast的文本内容定位toast

driver.find_element_by_xpath('//*[@text="xxxxxx"]')

这种方式一般用于判断或断言是否出现文本为"xxxxxx"的toast,因此我们可以封装如下:

# -*- coding:utf-8 -*-
# @author: 给你一页白纸 from selenium.webdriver.support import expected_conditions as ec
from selenium.webdriver.support.ui import WebDriverWait
from appium.webdriver.common.mobileby import MobileBy as By def is_toast_exist(driver, text, timeout=20, poll_frequency=0.1):
'''
判断toast是否存在,是则返回True,否则返回False
:param driver: driver实例对象
:param text: toast文本
:param timeout: 定位超时时间
:param poll_frequency: 查询频率
:return: True or False
'''
try:
toast_loc = (By.XPATH, ".//*[contains(@text, %s)]" % text)
WebDriverWait(driver, timeout, poll_frequency).until(
ec.presence_of_element_located(toast_loc)
)
return True
except:
return False

2.2,根据toast的属性className定位toast

toast的className值为:android.widget.Toast

driver.find_element_by_xpath('//*[@class="android.widget.Toast"]')

这种方式一般用于获取toast的文本内容,封装如下:

# -*- coding:utf-8 -*-
# @author: 给你一页白纸 def get_toast_text(driver, timeout=20, poll_frequency=0.1):
'''
定位toast元素,获取text属性
:param driver: driver实例对象
:param timeout: 元素定位超时时间
:param poll_frequency: 查询频率
:return: toast文本内容
'''
toast_loc = (By.XPATH, '//*[@class="android.widget.Toast"]')
try:
toast = WebDriverWait(driver, timeout, poll_frequency).until(
ec.presence_of_element_located(toast_loc)
)
toast_text = toast.get_attribute('text')
return toast_text
except Exception as e:
return e

注意

  • 等待方式只能用presence_of_element_located(),即只能等待其存在,而不能等待其可见。

  • 如果初始化构造driver时已经使用了隐式等待implicitly_wait(),则timeout参数可以不写。

四,示例代码

定位今日头条app账号密码登录成功后的 "登录成功"toast

注意:我这里是将desired_caps里的Uiautomator2参数注释掉了,且未安装appium-uiautomator2-driver,也同样能定位到,大家可在与我相同的环境下进行尝试。

# -*- coding:utf-8 -*-
# @author: 给你一页白纸 from appium import webdriver
from selenium.webdriver.support import expected_conditions as ec
from selenium.webdriver.support.ui import WebDriverWait
from appium.webdriver.common.mobileby import MobileBy as By def android_driver():
desired_caps = {
"platformName": "Android",
"platformVersion": "10",
"deviceName": "PCT_AL10",
"appPackage": "com.ss.android.article.news",
"appActivity": ".activity.MainActivity",
# "automationName": "UiAutomator2",
"unicodeKeyboard": True,
"resetKeyboard": True,
"noReset": True,
}
# 启动app
driver = webdriver.Remote('http://127.0.0.1:4723/wd/hub', desired_caps)
return driver def is_toast_exist(driver, text, timeout=20, poll_frequency=0.1):
'''
判断toast是否存在,是则返回True,否则返回False
'''
try:
toast_loc = (By.XPATH, ".//*[contains(@text, %s)]" % text)
WebDriverWait(driver, timeout, poll_frequency).until(
ec.presence_of_element_located(toast_loc)
)
return True
except:
return False def get_toast_text(driver, timeout=20, poll_frequency=0.1):
'''
定位toast元素,获取text属性
'''
toast_loc = (By.XPATH, '//*[@class="android.widget.Toast"]')
try:
toast = WebDriverWait(driver, timeout, poll_frequency).until(
ec.presence_of_element_located(toast_loc)
)
toast_text = toast.get_attribute('text')
return toast_text
except Exception as e:
return e def login_opera(driver):
'''登录今日头条操作'''
try:
# driver.find_element_by_id("com.ss.android.article.news:id/cji").click() # 点击【同意】
driver.find_element_by_id("com.ss.android.article.news:id/cji").click() # 点击【我知道了】
driver.find_element_by_id("android:id/button1").click() # 点击权限管理-确定按钮
driver.find_element_by_xpath("//android.widget.TabWidget/android.widget.RelativeLayout[@index=3]").click() # 点击未登录
driver.find_element_by_id("com.ss.android.article.news:id/a10").click() # 未登录页点击登录按钮
driver.find_element_by_id("com.ss.android.article.news:id/bgh").click() # 登录页点击“。。。”
driver.find_element_by_xpath("//android.widget.LinearLayout[@index=4]").click() # 选择密码登录
driver.find_element_by_id("com.ss.android.article.news:id/bu").send_keys("xxxxxxxx") # 输入账号
driver.find_element_by_id("com.ss.android.article.news:id/c5").send_keys("xxxxxxxx") # 输入密码
driver.find_element_by_id("com.ss.android.article.news:id/a2o").click() # 点击登录
except Exception as e:
print("登录错误,原因为:{}".format(e))
# 报错时截图
driver.get_screenshot_as_file(r'E:\blog\blog_script\images\test_login_error_01.png')
else:
toast_text = get_toast_text(driver)
print(toast_text)
toast_el = is_toast_exist(driver, "登录成功")
print(toast_el) if __name__ == '__main__':
driver = android_driver()
login_opera(driver)

运行结果如下,说明定位该toast成功:

C:\Users\xiaoqq\AppData\Local\Programs\Python\Python37\python.exe E:/blog/blog_script/login_jrtt.py
登录成功
True Process finished with exit code 0
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