How to convert String to Integer which is to be used in test activity

[KishoreReddy]

ex: I have '12345' as a string and I have to compare that with a number. Please provide me the solution how to convert the string to number.

I have tried using ToInteger('12345') and ToInt64('12345') in the test activity but I am getting the error like "XTK-170007 Unknown function 'ToInt64'."

Thanks in Advance.