无法使用 Robot Framework 的 --Variable 为不同的浏览器运行

Question

In the Keywords.robot i have specified the Browser as variable and assigned to chrome, but when i tried to run from the terminal using the below command

C:\Users\rajre\PycharmProjects\Automation>robot --variable Browser:firefox TestCases\LoginTest.robot

throws error as "SessionNotCreatedException: Message: Unable to find a matching set of capabilities "

Note: I have kept the geckodriver.exe at location C:\Users\rajre\PycharmProjects\Automation\venv\Scripts

LoginKeywords.robot:

 *** Settings *** Library Selenium2Library Variables../PageObjects/Locaters.py *** Variables *** ${AppUrl} https://xxxxxxxxxxxxx ${Browser} chrome *** Keywords *** Open my Browser [Arguments] ${AppUrl} ${Browser} open browser ${AppUrl} ${Browser} maximize browser window Input UserName [Arguments] ${Username} input text ${txt_loginUserName} ${Username} Input Pwd [Arguments] ${Password} input text ${txt_loginPassword} ${Password} Click Login Button click button ${btn_Login} Verify Message should contain Password cannot be empty Password cannot be empty should contain Username cannot be empty Username cannot be empty should contain Invalid credentials Invalid credentials should contain Dashboard Dashboard

LoginTest.robot

 *** Settings *** Library Selenium2Library Resource../Resources/LoginKeywords.robot Library DataDriver../TestData/LoginTestData.xlsx Suite Setup Open my Browser ${AppUrl} ${Browser} Suite Teardown Close Browser Test Template Login Validation *** Test Cases *** LoginTest Login Validation *** Keywords *** Login Validation [Arguments] ${Username} ${Password} Input UserName ${Username} sleep 1 Input Pwd ${Password} sleep 1 Click Login Button sleep 1 Verify Message

LoginTest.robot

I have tried this way too, but no luck

Suite Setup Open my Browser ${AppUrl} browser=${Browser}

C:\Users\rajre\PycharmProjects\Automation>robot --variable browser:firefox TestCases\LoginTest.robot

Answer 1

Open Browser keyword will find a browser driver on your environment variables, you may add your drivers there. Or, you can use its optional parameter "executable-path"

So it goes like this for Chrome

Open Browser    https://www.google.com/   Chrome  executable_path=C:/chromedriver.exe

For Firefox

Open Browser    https://www.google.com/   Firefox  executable_path=C:/geckodriver.exe

You can have different keywords for that or just also pass the executable_path on your [Arguments]

Answer 2

The geckodriver is only used for Firefox Browser, and you have specified the Browser as variable and assigned to Chrome, This will definitely not work. Download the latest chromedriver from here

Hope this helps!