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Lee_M's avatar
Lee_M
Community Hero
7 months ago
Solved

If Object exists - Script and Keyword

HI,   The IF Object in either script or Keywords tests is not reliable for me.   When using ".Exists" or KW equivalent the code will execute and may bring back the correct results but the iss...
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  • rraghvani's avatar
    rraghvani
    7 months ago

    I've always found this annoying and confusing. When using Exists, we're checking the objects property value is either true or false (the object must not be null). But to validate the object state, you may need to check if the object exists in the system. Using the appropriate WaitNNN method, such as WaitChild method, gets around this problem.

     

    Here's an example, using WaitChild to find a button which doesn't exist. 

    It's not possible to use,

     

    if (btn !== null)
// or
if (btn != null)

     

    because WaitChild method is returning a stub object, btn will not be null.

rraghvani's avatar
rraghvani
Champion Level 3
7 months ago

The documentation of FindElement, mentions for Return Value - "If no matching object was found, the method returns an empty value (null in JavaScript, JScript, C#Script, and C++Script, None in Python, Nothing in VBScript, nil in DelphiScript) and posts an error message to the test log". 

 

This doesn't work,

because it's return a stub object!