Edge 特定功能
微软Edge是用Chromium实现的,最早支持版本是v79. 与Chrome类似, Edge驱动的主版本号必须与Edge浏览器的主要版本匹配.
在 Chrome 页面 上找到的所有capabilities和选项也适用于Edge.
选项
Capabilities common to all browsers are described on the Options page.
Capabilities unique to Chromium are documented at Google’s page for Capabilities & ChromeOptions
使用基本定义的选项启动 Edge 会话如下所示:
driver.quit()
@driver = Selenium::WebDriver.for :edge, options: options
end
let options = new edge.Options();
driver = await env.builder()
.setEdgeOptions(options)
.setEdgeService(new edge.ServiceBuilder(edgedriver.binPath()))
.build();
Arguments
The args
parameter is for a list of command line switches to be used when starting the browser.
There are two excellent resources for investigating these arguments:
Commonly used args include --start-maximized
and --headless=new
and --user-data-dir=...
Add an argument to options:
driver.quit()
.build();
Start browser in a specified location
The binary
parameter takes the path of an alternate location of browser to use. With this parameter you can
use chromedriver to drive various Chromium based browsers.
Add a browser location to options:
Add extensions
The extensions
parameter accepts crx files. As for unpacked directories,
please use the load-extension
argument instead, as mentioned in
this post.
Add an extension to options:
Keeping browser open
Setting the detach
parameter to true will keep the browser open after the process has ended,
so long as the quit command is not sent to the driver.
Note: This is already the default behavior in Java.
Note: This is already the default behavior in .NET.
.build();
Excluding arguments
MSEdgedriver has several default arguments it uses to start the browser.
If you do not want those arguments added, pass them into excludeSwitches
.
A common example is to turn the popup blocker back on. A full list of default arguments
can be parsed from the
Chromium Source Code
Set excluded arguments on options:
.build();
Service
Examples for creating a default Service object, and for setting driver location and port can be found on the Driver Service page.
Log output
Getting driver logs can be helpful for debugging issues. The Service class lets you direct where the logs will go. Logging output is ignored unless the user directs it somewhere.
File output
To change the logging output to save to a specific file:
.withAppendLog(true)
Note: Java also allows setting file output by System Property:
Property key: EdgeDriverService.EDGE_DRIVER_LOG_PROPERTY
Property value: String representing path to log file
driver = webdriver.Edge(service=service)
expect(File.readlines(file_name).grep(/\[DEBUG\]:/).any?).to eq true
Console output
To change the logging output to display in the console as STDOUT:
System.setProperty(EdgeDriverService.EDGE_DRIVER_LOG_PROPERTY,
Note: Java also allows setting console output by System Property;
Property key: EdgeDriverService.EDGE_DRIVER_LOG_PROPERTY
Property value: DriverService.LOG_STDOUT
or DriverService.LOG_STDERR
Log level
There are 6 available log levels: ALL
, DEBUG
, INFO
, WARNING
, SEVERE
, and OFF
.
Note that --verbose
is equivalent to --log-level=ALL
and --silent
is equivalent to --log-level=OFF
,
so this example is just setting the log level generically:
Assertions.assertTrue(fileContent.contains(expected));
}
Note: Java also allows setting log level by System Property:
Property key: EdgeDriverService.EDGE_DRIVER_LOG_LEVEL_PROPERTY
Property value: String representation of ChromiumDriverLogLevel
enum
driver = webdriver.Edge(service=service)
@driver = Selenium::WebDriver.for :edge, service: service
Log file features
There are 2 features that are only available when logging to a file:
- append log
- readable timestamps
To use them, you need to also explicitly specify the log path and log level. The log output will be managed by the driver, not the process, so minor differences may be seen.
Note: Java also allows toggling these features by System Property:
Property keys: EdgeDriverService.EDGE_DRIVER_APPEND_LOG_PROPERTY
and EdgeDriverService.EDGE_DRIVER_READABLE_TIMESTAMP
Property value: "true"
or "false"
Disabling build check
Edge browser and msedgedriver versions should match, and if they don’t the driver will error. If you disable the build check, you can force the driver to be used with any version of Edge. Note that this is an unsupported feature, and bugs will not be investigated.
Note: Java also allows disabling build checks by System Property:
Property key: EdgeDriverService.EDGE_DRIVER_DISABLE_BUILD_CHECK
Property value: "true"
or "false"
Internet Explorer 兼容模式
微软Edge可以被"Internet Explorer兼容模式"驱动, 该模式使用Internet Explorer驱动类与微软Edge结合使用. 阅读 Internet Explorer 页面 了解更多详情.
Special Features
Some browsers have implemented additional features that are unique to them.
Casting
You can drive Chrome Cast devices with Edge, including sharing tabs
Network conditions
You can simulate various network conditions.
Logs
Permissions
DevTools
See the [Chrome DevTools] section for more information about using DevTools in Edge