Test a python function in Robot Framework

Question

I am a new user and I didn't find a solution for a doubt about the execution of my script, wrote in python, in Robot Framework.

The script works when I execute it on python compiler but when I execute the test case on Robot Framework, this error is showed:

===========================================================================
TestProvaPower
===========================================================================
TestPowerAngelo                                                    | FAIL |
No keyword with name 'power' found.
---------------------------------------------------------------------------
TestProvaPower                                                     | FAIL |
1 critical test, 0 passed, 1 failed
1 test total, 0 passed, 1 failed
===========================================================================
Output:  c:\users\user\appdata\local\temp\RIDEjtznzw.d\output.xml

I think that this error is shown because it is necessary to pass the arguments and parameters.

Please, how can I pass these values in Robot Framework?

The test suite is:

** Settings **
Library           ../../../../../Users/User/workspace/TestAngelo18.09/TestProva22.py

** Test Cases **
TestPowerAngelo
    power    base    exponent
    push    ${base}    ${exponent}

While my Python script is:

base = input("Insert base")
exponent =input("Insert exponent")

def power(base,exponent):
    result=base**exponent
    print "%d to the power of %d is %d" %(base,exponent,result)

power (base,exponent)

Could you add your TestProvaPower suite to the question? It looks like you didn't import your python module correctly. — mr2ert
– mr2ert, Commented Sep 20, 2013 at 16:32
you should remove everything except the function from the library. the first, second and last line are only called only when the library is imported. — kontulai
– kontulai, Commented Oct 2, 2013 at 14:58

ombre42 · Accepted Answer · 2013-10-02 17:11:22Z

3

As part of your module definition, you are getting input from the user. When a module is being imported, you cannot use the standard input stream so an EOFError occurs. Below is a modified version of your library that is still testable via direct execution.

def power(base, exponent):
    result = base**exponent
    return result

if __name__ == '__main__':
    base = input("Insert base")
    exponent = input("Insert exponent")
    result = power(base,exponent)
    print "%d to the power of %d is %d" %(base, exponent, result)

answered Oct 2, 2013 at 17:11

ombre42

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kontulai · Accepted Answer · 2013-10-02 14:56:25Z

1

Instead of using complex path in the Library import try setting python path with pybot e.g.

pybot --pythonpath /path/to/libs/where/py/file/is

And in the test suite file import it using just the name e.g. without the .py suffix.

Library    TestProva22

answered Oct 2, 2013 at 14:56

kontulai

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1 Comment

Ngiulino Over a year ago

Thanks guys, I deleted the input for base and exponent variables because I use Robotframework.

MarkHu · Accepted Answer · 2016-08-16 17:31:04Z

1

RF treats arguments as strings by default. For literals, you can surround them with ${} or variables use Convert To Integer first. Something like this should work:

${result} =  power   ${2}  ${4}
Should Be Equal As Integers  ${result}  16

answered Aug 16, 2016 at 17:31

MarkHu

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