Error while incrementing the value in Robot Framework - robotframework

Question

*** Settings ***
Library DateTime
*** Test Cases ***
Test title
${TIME}= get current date result_format=%H
RUN KEYWORD IF
... int(${TIME})%2==0
... ${TIME}= catenate SEPARATOR= ${TIME} :00
... ELSE
... ${TIME}= Evaluate int(${TIME})+1
... ${TIME}= catenate SEPARATOR= ${TIME} :00
log to console ${TIME}
I'm getting the following error:
No keyword with name '11=' found.

Answer 1

You cannot have a variable assignment inside Run Keyword If - as its name goes it's only for running keyword, and doesn't support assignments (it treats the variable as another keyword it has to run). Thus the error - the framework substituted ${TIME} with its value (11), and tried executing that.
In version 4.0 it supports proper IF/ELSE blocks, where this restriction doesn't apply:
Test title
${TIME}= get current date result_format=%H
IF int(${TIME})%2==0
${TIME}= catenate SEPARATOR= ${TIME} :00
ELSE
${TIME}= Evaluate int(${TIME})+1
${TIME}= catenate SEPARATOR= ${TIME} :00
END
log to console ${TIME}
In the mean time, you can solve it with another approach - using Set Variable If. It's sumilar to Run Keyword If that it's conditional, but takes only values.
There's a functionality in the framework that you can do calculations in place (strictly speaking - calling methods), that we'll employ - increment the value with 1:
Test title
${TIME}= get current date result_format=%H
${TIME}= Convert To Integer ${TIME} # to be sure it's type is this, I haven't checked what the keyword returns
${TIME}= Set Variable If ${TIME}%2==0 ${TIME}:00
... ${TIME + 1}:00 # this is the ELSE block
log to console ${TIME}