Test infrastructure maintainability: refactor FixtureManipulatorTest into more test methods, add extra validation

Should update this test now after 📌 Update FixtureManipulator to work with InstalledPackagesList, real composer show command Fixed to not confirm FixtureManipulator works by inspecting the installed.json and installed.php file? We no longer edit these file directly

We could run actually composer show command and confirm the packages are correct.

+1 to everything you said!

But I think we should do as part of 📌 Remove our runtime dependency on composer/composer: remove ComposerUtility Fixed .

Ahmed Aziz ABBASSI → made their first commit to this issue’s fork.

looks good, nice work .

reviewing

I fixed a few things and then made few more comments

reviewing

@yash.rode looks good.

I assigning to @phenaproxima for final review since also work on this

@Wim Leers could also review this so I will unassign

Conflicts with 🐛 In some situations, pass JSON_THROW_ON_ERROR when decoding JSON Postponed: needs info .

Fixed merge conflict.