Tests: Add unit tests for Common::prepareForOutput()

[MatmaRex]

This function has different behavior on Windows and on other systems, therefore add two tests, only one of which runs.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
  • This change is only breaking for integrators, not for external standards or end-users.
• Documentation improvement

PR checklist

• I have checked there is no other PR open for the same change.
• I have read the Contribution Guidelines.
• I grant the project the right to include and distribute the code under the BSD-3-Clause license (and I have the right to grant these rights).
• I have added tests to cover my changes.
• I have verified that the code complies with the projects coding standards.
• [Required for new sniffs] I have added XML documentation for the sniff.

[jrfnl]

@MatmaRex This is great ! Thank you for adding these tests.

I've left a few small comments to have a look at.

Other than that, maybe there should also be a test case which doesn't do any replacements, not on Windows, nor on Linux. Something like this maybe ?

            'No replacements' => [
                'content'     => 'nothing-should-be-replaced',
                'exclude'     => [],
                'expected'    => 'nothing-should-be-replaced',
                'expectedWin' => 'nothing-should-be-replaced',
            ],

If you rebase the PR, you can remove the @author tag.

Once that's done, I'll add an extra commit to the PR to enable running the tests on Windows in GH Actions.

[MatmaRex]

Thank you for the review, addressed all comments.

[jrfnl]

@MatmaRex Thank you for making those updates! I've now added that extra commit to enable running the tests on Windows. 🤞🏻

Once the build has run (and passed), I'll merge this PR.

[jrfnl]

Sorry for the commit noise, just tweaking a step to (hopefully) get code coverage running on Windows too.

[jrfnl]

Again, sorry for the commit noise. Looks like I've finally got it working correctly. I'm going to squash the CI commits now. Once the build has finished once again, I'll merge this.

[MatmaRex]

Thanks!