Implemented test for irca feature

[zaqbez39me]

Test for Impact Ratio by Commit Authors (IRCA) in #226

[zaqbez39me]

@yegor256 please, check this test out

[yegor256]

@zaqbez39me looks good, but make fails (see above). Also, to disable a test, it's better to do exit 0 at the beginning of the script, instead of commenting it all out

[zaqbez39me]

@yegor256 fixed the test disabling method. Please, check my reasoning about make in #259

[zaqbez39me]

@yegor256 after providing access for execution for test-irca.sh and adding the stub irca.sh, I met with another error that is not directly connected with my part. Maybe, this error in pipline was before in master branch

[yegor256]

@zaqbez39me the master branch has a clean build: https://github.com/yegor256/cam/actions/workflows/make.yml

[zaqbez39me]

@yegor256 as I see this error occurs because of my stub and test-measure-file.sh conflict. If I make my stub return "IRCA 0.000" then the test-measure-file.sh fails with the error 'Exactly 52 metrics were expected, but 53 were actually collected' because of hardcoded 52 constant in it.

[zaqbez39me]

I had to add stub because of another test that checks following:
If test exists then the script also must exist

[yegor256]

@zaqbez39me maybe you should change the number in the test-measure-file.sh?

[zaqbez39me]

@yegor256 maybe, I should better fix the hardcoded value with calculated in separate pull request and then rerun all the pipelines again?

[yegor256]

@zaqbez39me sounds good!

[zaqbez39me]

@yegor256 please, check it out. Now everything works fine

[yegor256]

@zaqbez39me thanks!