为了进行测试,我在不同端口上本地运行网格和节点。
java -jar /usr/bin/selenium-server.jar -port 4444 -role hub java -jar /usr/bin/selenium-server.jar -role node -hub http://127.0.0.1:4444/grid/register -port 5556
因此,网格在4444上运行,而节点在5556上运行。
在我的测试中,如果我以
driver = webdriver.Remote(command_executor='http://127.0.0.1:4444/wd/hub', desired_capabilities=desired_capabilities)
然后测试失败,但出现异常
response = {'status': 500, 'value': '{"status":13,"value":{"class":"java.lang.NullPointerException","stackTrace":[{"fileName":"Ha...n","lineNumber":590},{"fileName":"Thread.java","className":"java.lang.Thread","methodName":"run","lineNumber":745}]}}'}
如果我在节点端口5555而不是集线器端口4444上运行测试,则测试通过,如下所示
driver = webdriver.Remote(command_executor='http://127.0.0.1:5555/wd/hub', desired_capabilities=desired_capabilities)
我认为,我们应该在集线器端口上运行测试,在本例中为4444,而不是5555。
如果我错了,请纠正我。
如果你打算使用 Selenium 在 Grid 通过配置 Hub 和 Node 配置,我会建议你使用最新的 selenium-server-standalone-3.6.0 罐子如下:
Selenium
Grid
Hub
Node
selenium-server-standalone-3.6.0
启动 Selenium Grid Hub (默认情况下在端口4444上):
Selenium Grid Hub
java -jar selenium-server-standalone-3.6.0.jar -role hub
确认 Selenium Grid Hub 已启动:
16:06:29.891 INFO - Nodes should register to http://192.168.1.48:4444/grid/register/
16:06:29.891 INFO - Selenium Grid hub is up and running
访问 Selenium Grid Hub Console 并确保 Selenium Grid Hub 启动并正在运行:
Selenium Grid Hub Console
http://localhost:4444/grid/console
启动 Selenium Grid Node Mozilla / GeckoDriver的(默认情况下,在端口5555上):
Selenium Grid Node
java -Dwebdriver.gecko.driver=geckodriver.exe -jar selenium-server-standalone-3.6.0.jar -role node -hub http://localhost:4444/grid/register
确认 Selenium Grid Node 已注册并启动:
16:15:54.696 INFO - Selenium Grid node is up and ready to register to the hub
16:15:54.742 INFO - Starting auto registration thread. Will try to register every 5000 ms. 16:15:54.742 INFO - Registering the node to the hub: http://localhost:4444/grid/register 16:15:54.975 INFO - The node is registered to the hub and ready to use
与执行 Testcase 具有 DesiredCapabilities 如下:
Testcase
DesiredCapabilities
self.driver = webdriver.Remote(command_executor='http://127.0.0.1:4444/wd/hub', desired_capabilities=caps)
成功执行以下命令时,请观察控制台日志,并以以下结尾 Testcase :
16:23:50.590 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@37ff9771
16:23:50.590 INFO - Handler thread for session 31a1dcb0-8bed-40fb-acdb-d5be19f03ba2 (firefox): Executing DELETE on /session/31a1dcb0-8bed-40fb-acdb-d5be19f03ba2 (handler: ServicedSession) 1506941630595 Marionette INFO New connections will no longer be accepted