【Mac + Python3.6 + ATX基于facebook-wda】之IOS自动化（二）：安装facebook-wda库并编写简易自动化测试脚本

上一篇介绍完如何安装WDA，接下来开始正式安装开发库并编写自动化脚本。

目录：

• 一、安装facebook-wda库

• 二、通过WEditor定位元素

• 三、附录：学习资料

一、安装facebook-wda库

运行命令行安装：

pip install --pre facebook-wda

或者使用pycharm中，Preferences->Project->Project Interpreter->【+】(加号), 搜索：facebook-wda，并安装

举个栗子，页面元素定位，如下图，class、name一一展示：

通过“ideviceinstaller -l ”或者其他工具查找到APP软件的bundleId

$ ideviceinstaller -l
Total: 5 apps
com.ysr.scancode - 二维码扫描器 3
com.apple.test.WebDriverAgentRunner-Runner - WebDriverAgentRunner-Runner 1
com.sogou.sogouinput - 搜狗输入法 142709
com.netease.cloudmusic - 网易云音乐 1044
com.leqimea.recorderAudio - PP助手 10000

但是，会一直报错Could not connect to lockdownd. Exiting.

痛苦了大半天，终于找到了解决办法：

参考：《IOS 执行ideviceinstaller -l ,结果报错Could not connect to lockdownd. Exiting.》

上代码：

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2018/10/16 11:42
# @Author  : zc
# @File    : test.py

import unittest
import wda

wda.DEBUG = False # default False
wda.HTTP_TIMEOUT = 10.0 # default 60.0 seconds

bundle_id = "com.chen.CityMineSafetyOne"  （通过上面获得）
c = wda.Client('http://localhost:8100')

# 启动应用
s = c.session(bundle_id)

class Test_safety(unittest.TestCase):

    def setUp(self):
        print("=======start!=======")
        pass

    def tearDown(self):
        print("=======stop!=======")
        pass

    def test1(self):
　　　　　# class、name定位参考网易图所示，这里只是举个栗子，并不是网易代码
        s(name='home btn newtask',className='Button').tap()

if __name__ == '__main__':
    unittest.main()

运行成功！！！！

二、通过WEditor定位元素　　　　　　    返回目录

之前做uiautomator2-Android自动化时，用到了这个进行定位元素，非常方便，facebook-wda-IOS自动化也可以通过这个进行定位元素。

首先，启动weditor

python -m weditor

有时候会报错：OSError: [Errno 48] Address already in use

提示您地址已经被占用，所以我们可以查看weditor的17310端口，看看哪些软件占用了此端口：

# 查看端口使用情况
lsof -i tcp:17310

COMMAND    PID   USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
Google     396 zhan  156u  IPv6 0x9b9eee3e3dae5dfb      0t0  TCP localhost:58732->localhost:17310 (ESTABLISHED)
python3.6 8244 zhan    4u  IPv6 0x9b9eee3e34507f3b      0t0  TCP *:17310 (LISTEN)

# 其中谷歌和py3.6占用了端口，选择杀死进程
kill 396
kill 8244

接着再启动weditor，发现还是报错：

ModuleNotFoundError: No module named 'atx'

需要安装atx：

pip install atx==1.1.2.dev18

$ pip install atx==1.1.2.dev18
Collecting atx==1.1.2.dev18
  Downloading https://files.pythonhosted.org/packages/16/75/f47630ae898e61900f0c32165916330bce718aa048e4abd1ce8408cef9ff/atx-1.1.2.dev18-py3-none-any.whl (2.2MB)
    100% |████████████████████████████████| 2.2MB 600kB/s
Collecting imageio==1.5 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/e8/b7/8d78cb388c1aa8648c65601572fb4c50cc36f5eff6b22f0ec69ef0d63ecc/imageio-1.5.zip (3.3MB)
    100% |████████████████████████████████| 3.3MB 444kB/s
Requirement already satisfied: Pillow>=2.7.0 in /Users/zhan/.pyenv/versions/3.6.1/lib/python3.6/site-packages (from atx==1.1.2.dev18)
Collecting PyYAML==3.11 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/75/5e/b84feba55e20f8da46ead76f14a3943c8cb722d40360702b2365b91dec00/PyYAML-3.11.tar.gz (248kB)
    100% |████████████████████████████████| 256kB 3.7MB/s
Collecting colorama==0.3.7 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/b7/8e/ddb32ddaabd431813e180ca224e844bab8ad42fbb47ee07553f0ec44cd86/colorama-0.3.7-py2.py3-none-any.whl
Collecting numpy>=1.11.0 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/0a/2b/726b7d4e4ba844d4805c52b8e05299a5f49bc16c69ca0fa8e1964c0871fe/numpy-1.15.2-cp36-cp36m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (24.5MB)
    100% |████████████████████████████████| 24.5MB 60kB/s
Collecting tqdm==4.5.0 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/83/4f/50d87b628eeae681eb9b5217840a215808ce3cf42c0d72752be286b1bfdf/tqdm-4.5.0-py2.py3-none-any.whl
Collecting facebook-wda==0.1.1.dev1 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/4b/01/fbe44ad81ef016f1cc4fb149ce684da1cff163464a6168a7b87c4bd4597d/facebook_wda-0.1.1.dev1-py3-none-any.whl
Requirement already satisfied: requests>=2.9.1 in /Users/zhan/.pyenv/versions/3.6.1/lib/python3.6/site-packages (from atx==1.1.2.dev18)
Collecting futures==3.0.5 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/55/db/97c1ca37edab586a1ae03d6892b6633d8eaa23b23ac40c7e5bbc55423c78/futures-3.0.5.tar.gz
Collecting maproxy==0.0.12 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/2e/12/41e87a13b3e64373f73029ad1e826084afa64d4cdfa17baadc3ccde2ee02/maproxy-0.0.12.zip
Collecting atx-uiautomator==0.2.12.dev6 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/42/40/bde514f5eb29d267cc06ab2bf890e972edf46345e24ebdae44d79b0f87e1/atx_uiautomator-0.2.12.dev6-py3-none-any.whl (2.9MB)
    100% |████████████████████████████████| 2.9MB 514kB/s
Collecting AxmlParserPY==0.0.2 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/38/2b/50f92036bd6d46cdb7b581f4a0a4c5c0081ccc1235e0db96b640ed0fdcba/AxmlParserPY-0.0.2.tar.gz
Requirement already satisfied: tornado>=4.4 in /Users/zhan/.pyenv/versions/3.6.1/lib/python3.6/site-packages (from atx==1.1.2.dev18)
Collecting aircv==1.4.5 (from atx==1.1.2.dev18)
  Downloading https://files.pythonhosted.org/packages/66/5e/e58fd28a7a96e23a87cecf61f5d57acbae88812f22192afcbdbbb6015499/aircv-1.4.5.tar.gz (4.0MB)
    100% |████████████████████████████████| 4.0MB 402kB/s
Requirement already satisfied: six>=1.10.0 in /Users/zhan/.pyenv/versions/3.6.1/lib/python3.6/site-packages (from facebook-wda==0.1.1.dev1->atx==1.1.2.dev18)
Requirement already satisfied: idna<2.8,>=2.5 in /Users/zhan/.pyenv/versions/3.6.1/lib/python3.6/site-packages (from requests>=2.9.1->atx==1.1.2.dev18)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in /Users/zhan/.pyenv/versions/3.6.1/lib/python3.6/site-packages (from requests>=2.9.1->atx==1.1.2.dev18)
Requirement already satisfied: certifi>=2017.4.17 in /Users/zhan/.pyenv/versions/3.6.1/lib/python3.6/site-packages (from requests>=2.9.1->atx==1.1.2.dev18)
Requirement already satisfied: urllib3<1.24,>=1.21.1 in /Users/zhan/.pyenv/versions/3.6.1/lib/python3.6/site-packages (from requests>=2.9.1->atx==1.1.2.dev18)
Installing collected packages: imageio, PyYAML, colorama, numpy, tqdm, facebook-wda, futures, maproxy, atx-uiautomator, AxmlParserPY, aircv, atx
  Running setup.py install for imageio ... done
  Running setup.py install for PyYAML ... done
  Found existing installation: facebook-wda 0.2.1
    Uninstalling facebook-wda-0.2.1:
      Successfully uninstalled facebook-wda-0.2.1
  Running setup.py install for futures ... done
  Running setup.py install for maproxy ... done
  Running setup.py install for AxmlParserPY ... done
  Running setup.py install for aircv ... done
Successfully installed AxmlParserPY-0.0.2 PyYAML-3.11 aircv-1.4.5 atx-1.1.2.dev18 atx-uiautomator-0.2.12.dev6 colorama-0.3.7 facebook-wda-0.1.1.dev1 futures-3.0.5 imageio-1.5 maproxy-0.0.12 numpy-1.15.2 tqdm-4.5.0
You are using pip version 9.0.1, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

在安装cv2，作用是读取图像相关的：

 pip install opencv-python

再次运行weditor，又发生错误：

from atx import ioskit
File "/Users/zhangc/.pyenv/versions/3.6.1/lib/python3.6/site-packages/atx/ioskit.py", line 199
print dev.screenshot('i.png')
^
SyntaxError: invalid syntax

语法错误，经过大神调试得知原来是，atx版本问题，升级atx版本。

# 查看pip下各个库的版本
pip list

# 得知
atx (1.1.2.dev18)
pip (9.0.1)

# 升级pip
pip install --upgrade pip

# 升级atx
pip install -U atx

# 再查看pip下各个库版本
    Package       Version
--------------- -----------
     atx           1.2.0
     pip           18.1  

# 最后再运行weditor
python -m weditor

weditor终于启动成功！！！！！

浏览器自动打开weditor，选择IOS，输入地址：http://localhost:8100，点击【Connect】连接，出现小绿叶