Python - Pass a variable in a module to a function in another module

Question

I have some code in multiple files like so:

A main module:

import TC1
import TC2

Some test case modules, which look like:

testcase = "Test Case 1"
successmessage = "Specific Success Message for Test Case 1"
errormessage = "Specific Error Message for Test Case 1"

# Run test
if pageLoaded == pageExpected:
    testresult = 0
    logresults()
else:
    testresult = 1
    logresults()

And a log results module:

def logresults():
    print("Test Results for", testcase,)
        if testresult == 0
            print(testcase, "Passed with", successmessage)
        else:
            print(testcase, "Failed with", errormessage)

How can I pass variables from each test case to logresults, and have it print the results of each test case as it is run?

Did you try... importing the log results module, from the test cases (where it's needed); writing logresults to have parameters that accept the value that need to be passed in; and then using arguments in the calls to logresults in order to pass that information? It works the same way as if the functions were in the same module. — Karl Knechtel
– Karl Knechtel, Commented Oct 15, 2022 at 6:24

Eli Stouraitis · Accepted Answer · 2022-10-15 00:54:32Z

1

I see two issues with your code.

First, if you import a module with a function that works on globals, it will search for globals that share a namespace. For example, if you have a logresultsmodule with a function logresults and you import it, it will only run on variables that look like this: logresultsmodule.variable

To fix this problem, you will have to change the signature of the function to

def logresults(testresult, testcase, successmessage, errormessage): ...

and pass the corresponding variables.

The second problem is you call logresults inside a conditional where there is a chance that the testresult variable hasn't been defined yet.

First evaluate the conditional, and then call logresults.

from logresultsmodule import logresults
{code that defines testcase, successmessage, errormessage}

if pageLoaded == pageExpected: 
    testresult = 0
else:
    testresult = 1
logresults(testresult, testcase, successmessage, errormessage)

So now whenever you import a testcase, the code will run automatically and print the result message.

answered Oct 15, 2022 at 0:54

Eli Stouraitis

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1 Comment

Squoggle Over a year ago

This is the concept I was missing. Thanks!

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