increase value of variable in iteration of for loop robot framework

Question

I need to increase ${success_num} test case variable in For Loop: But it is always 0, even after I add 1 to it. It's like it's been reset after each iteration. How can I increase its value?

*** Test Cases ***
    ...
    ...
    Set Test Variable    ${success_num}    ${0}
    App For Port    ${actual_app}
    ...
    ...

*** Keywords ***
App For Port    [Arguments]    ${app}
    : FOR    ${port_num}    IN    1    2
    \    ${PorF}    ${message}    Run Keyword And Ignore Error    applicationcontrol.Launch application    ${app}    ${port_num}
    \    Continue For Loop If    '${PorF}'=='FALSE'
    \    ${status}    Run Keyword And Return Status    Check launching status    ${app}    ${port_num}
    \    Continue For Loop If    '${status}'=='False'
    \    Run Keyword If    '${status}'=='True'   Add Success
    \    Exit For Loop

Add Success
    ${success_num}    Set Variable    ${success_num+1}

Laurent Bristiel · Accepted Answer · 2016-12-07 22:56:27Z

3

You don't have to call a keyword to increase success_num:

App For Port    [Arguments]    ${app}
    : FOR    ${port_num}    IN    1    2
    \    ${PorF}    ${message}    Run Keyword And Ignore Error    applicationcontrol.Launch application    ${app}    ${port_num}
    \    Continue For Loop If    '${PorF}'=='FALSE'
    \    ${status}    Run Keyword And Return Status    Check launching status    ${app}    ${port_num}
    \    Continue For Loop If    '${status}'=='False'
    \    ${success_num} =  Run Keyword If    ${status}    Set Variable  ${success_num}+1    ELSE    Set Variable    ${success_num}
    \    ${temp} =  Run Keyword If    ${status}    Evaluate  ${success_num}+1    ELSE    Evaluate    ${success_num}
    \    Set Test Variable  ${success_num}  ${temp}
    \    Exit For Loop

edited Dec 7, 2016 at 22:56

answered Dec 7, 2016 at 1:40

Laurent Bristiel

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3 Comments

Henry Over a year ago

This is not working. It shows INFO ${success_num} = 0+1, yet it's always 0

Henry Over a year ago

I changed your code to this:

Run Keyword If    ${status}    Set Test Variable    ${success_num}    ${success_num}+1    ELSE    Set Test Variable    ${success_num}    ${success_num}

and ran it. then it shows ${success_num} = 0+1 in the 1st iteration and ${success_num} = 0+1+1 in the 2nd iteration. and when I finally do ${fail_num} = BuiltIn . Evaluate ${total_num} - ${success_num} it gives me 7. this is ridiculous

Laurent Bristiel Over a year ago

@henry oh yes, I should have used "evaluate" instead of "Set Variable" (like you show in the other answer). I updated my answer accordingly.

Henry · Accepted Answer · 2016-12-06 20:39:23Z

1

Change the keyword Add Success to:

Add Success
    ${temp}    Evaluate    ${success_num} + 1
    Set Test Variable    ${success_num}    ${temp}

answered Dec 6, 2016 at 20:39

Henry

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Comments

SC_Adams · Accepted Answer · 2021-04-26 13:26:46Z

0

I recommend creating a Python function:

def Increment_Variable(p_num):
    return  int(p_num) + 1

and calling it as

${counter}=  Increment Variable  ${counter}

answered Apr 26, 2021 at 13:26

SC_Adams

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