[Avocado-devel] Wrapping a simple test into an instrumented one

[Lukáš Doktor]

Dne 11. 07. 19 v 17:09 Alan Martinovic napsal(a):
> Hi,
> I have a standalone executable written as a form of test which accepts
> cli parameters. In it's core it's executed as  `./test  -c parameter`
> 
> I'd like to wrap that with some python code so that it becomes an instrumented
> test. That way it can benefit from the the standardized way of passing parameters.
> 
> I've dedicated a directory for both files:
> ```
> wrapper_tests
>     |--test
>     `--wrapper-test.py
> ```
> 
> The wrapper is executing test with:
> ```
>     subprocess.check_output("./test")
> ```
> 
> As I try to run it with avocado by passing the wrapper_tests as a parameter two 
> errors seem to happen:
> * subprocess.check_output can't find ./test 
> * ./test itself is detected as a standalone test to run
> 
> Is there a best practice for this situation?
> 
> (even though names seem to be the same, this isn't a use case 
> for the wrapper plugin)
> 
> Be Well,
> Alan

Hello Alan,

it looks like you are executing the test from a different location, therefor "./" means a different directory. You can double-check by running the `avocado run wrapper-test.py` from the `wrapper_test` directory, it should pass. Anyway to address this you need to correctly specify the full address, for examply by using `__file__`:

    subprocess.check_output(os.path.join(os.path.dirname(__file__), "test"))

Regards,
Lukáš

PS: I'm sorry the response took so long, I was on a different project for a while and only noticed this email when processing emails after Christmas.

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