come from APP Android Notes for beginners of end-to-end automated testing , What's wrong? Please give me more advice
One 、 start-up appium The server
1. Start a single... From a command line window appium The server
appium -- Directly open the default 4723 Port number
appium -p 4723 -- Use -p To start the fixed port number appium The server
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2. Start multiple... From the command line window appium The server
appium -p 4723
appium -p 4726
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Two 、 Start multiple devices
1. stay yaml File configuration Capability Parameters
desired_caps.yaml
platformName: Android
platformVersion: '9'
deviceName: U4AIUKFAL7W4MJLR
appPackage: com.sina.weibo
appActivity: com.sina.weibo.SplashActivity
automationName: UiAutomator2
autoGrantPermissions: True
noReset: True
url: 127.0.0.1
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Be careful ：
The mobile phone system version number is in string format , Need to add ’' quotes
url by appium The address of the server
Starting multiple devices requires starting multiple devices appium service , So the port number is not set here
2. Code implementation
from time import ctime
import yaml
from appium import webdriver
devices_list = ['U4AIUKFAL7W4MJLR', 'U4AIUKFAL7W4MHUHUDS']
with open(r"E:\\study\\Fork\\WeiboDemo\\Weibo\\config\\desired_caps.yaml", 'r') as file:
data = yaml.load(file, Loader=yaml.FullLoader)
def multi_app_start(udid, port):
desired_caps = {
'platformName': data['platformName'],
'platformVersion': data['platformVersion'],
'deviceName': data['deviceName'],
'udid': udid,
'appPackage': data['appPackage'],
'appActivity': data['appActivity'],
'automationName': data['automationName'],
'autoGrantPermissions': data['autoGrantPermissions'],
'noReset': data['noReset']
}
print('appium port:%s start run %s at %s' % (port, udid, ctime()))
driver = webdriver.Remote('http://' + str(data['url']) + ':' + str(port) + '/wd/hub', desired_caps)
driver.implicitly_wait(10)
return driver
# Test functions , In the actual operation process, you can comment
if __name__ == '__main__':
multi_app_start(devices_list[0], 4723)
multi_app_start(devices_list[1], 4725)
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Be careful ：
You need to turn on two appium service , And the port number cannot be the same
The connected equipment is mainly based on udid Connect , Not based on yaml In the document deviceName, So in yaml In the document deviceName It can be set at will
ctime() Indicates the current time
The above is that only after one is successfully started can another be started , Not start two devices synchronously
The final result is ：
Encapsulate the above code into classes ：
class MultiDevices:
driver: webdriver = None
devices_list = ['U4AIUKFAL7W4MJLR', 'U4AIUKFAL7W4MHUHUDS']
def appium_desire(self, udid, port):
with open(r"E:\study\Fork\WeiboDemo\Weibo\config\desired_caps.yaml", 'r') as file:
data = yaml.load(file, Loader=yaml.FullLoader)
desired_caps = {
'platformName': data['platformName'],
'platformVersion': data['platformVersion'],
'deviceName': data['deviceName'],
'udid': udid,
'appPackage': data['appPackage'],
'appActivity': data['appActivity'],
'automationName': data['automationName'],
'autoGrantPermissions': data['autoGrantPermissions'],
'noReset': data['noReset']
}
print('appium port:%s start run %s at %s' % (port, udid, ctime()))
self.driver = webdriver.Remote('http://' + str(data['url']) + ':' + str(port) + '/wd/hub', desired_caps)
self.driver.implicitly_wait(10)
return self.driver
# Test functions , In actual operation, you can comment
if __name__ == '__main__':
mas1 = MultiDevices()
mas2 = MultiDevices()
mas1.appium_desire(MultiDevices.devices_list[0], 4723)
mas2.appium_desire(MultiDevices.devices_list[1], 4725)
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Multi process , The same variable , A copy of each exists in each process , They don't influence each other
In a multithreaded , All variables are shared by all threads , Any one can be modified by any thread , therefore , The biggest danger of sharing data among threads is that multiple threads change a variable at the same time , It's easy to mess up the content
So I use a multi process concurrent startup device
yaml Document ibid , The code implementation is as follows ：
import multiprocessing
from time import ctime
import yaml
from appium import webdriver
devices_list = ['U4AIUKFAL7W4MJLR', 'U4AIUKFAL7W4MHUHUDS']
with open(r"E:\\study\\Fork\\WeiboDemo\\Weibo\\config\\desired_caps.yaml", 'r') as file:
data = yaml.load(file, Loader=yaml.FullLoader)
def multi_app_start(udid, port):
desired_caps = {
'platformName': data['platformName'],
'platformVersion': data['platformVersion'],
'deviceName': data['deviceName'],
'udid': udid,
'appPackage': data['appPackage'],
'appActivity': data['appActivity'],
'automationName': data['automationName'],
'autoGrantPermissions': data['autoGrantPermissions'],
'noReset': data['noReset']
}
print('appium port:%s start run %s at %s' % (port, udid, ctime()))
driver = webdriver.Remote('http://' + str(data['url']) + ':' + str(port) + '/wd/hub', desired_caps)
driver.implicitly_wait(10)
return driver
# structure desired Process group
desired_process = []
# load desired process
for i in range(len(devices_list)):
port = 4723 + 2 * i
# target=" Method called ",args=" Incoming parameter "
desired = multiprocessing.Process(target=multi_app_start, args=(devices_list[i], port))
desired_process.append(desired)
if __name__ == '__main__':
# Start multiple devices to perform tests
for desired in desired_process:
desired.start()
# When all processes are finished, close
for desired in desired_process:
desired.join()
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The same as above , But start at the same time , The time in the log output from the console is consistent
Encapsulate the above code into classes
class MultiDevicesSync:
driver: webdriver = None
devices_list = ['U4AIUKFAL7W4MJLR', 'U4AIUKFAL7W4MHUHUDS']
def multi_devices_sync(udid, port):
with open(r"E:\study\Fork\WeiboDemo\Weibo\config\desired_caps.yaml", 'r') as file:
data = yaml.load(file, Loader=yaml.FullLoader)
desired_caps = {
'platformName': data['platformName'],
'platformVersion': data['platformVersion'],
'deviceName': data['deviceName'],
'udid': udid,
'appPackage': data['appPackage'],
'appActivity': data['appActivity'],
'automationName': data['automationName'],
'autoGrantPermissions': data['autoGrantPermissions'],
'noReset': data['noReset']
}
print('appium port:%s start run %s at %s' % (port, udid, ctime()))
driver = webdriver.Remote('http://' + str(data['url']) + ':' + str(port) + '/wd/hub', desired_caps)
driver.implicitly_wait(10)
return driver
# structure desired Process group
desired_process = []
# load desired process
for i in range(len(devices_list)):
port = 4723 + 2 * i
# target=" Method called ",args=" Incoming parameter "
desired = multiprocessing.Process(target=multi_devices_sync, args=(devices_list[i], port))
desired_process.append(desired)
if __name__ == '__main__':
multi_devices_sync = MultiDevicesSync()
# Start multiple devices to perform tests
for desired in multi_devices_sync.desired_process:
desired.start()
# When all processes are finished, close
for desired in multi_devices_sync.desired_process:
desired.join()
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Add ：
1. Difference between process and thread ？
A process is a running activity of a program on a data set in a computer , Is the system resource allocation and scheduling of the basic unit , Is the foundation of the operating system architecture .
Threads are sometimes referred to as lightweight processes , Is the smallest unit of program execution flow . A thread is an entity in a process , A process can contain multiple threads , But a thread cannot contain multiple processes . Thread does not own system resources , Running multiple threads at the same time in a single program to complete different work , Become multithreaded .
difference ：
Allocation of data space , Child processes and parent processes have different code and data spaces , Multiple threads share data space , Each thread has its own execution stack and program counter for its execution context .
You can think of a process as a factory , Multiple processes are multiple factories ; Think of a thread as a pipeline in a factory , A factory can have multiple production lines at the same time .
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