[BUGFIX] Fix handling of InstalledPackagesTrait

[eliashaeussler]

This PR is a follow-up to #1. It includes:

• Use of $resolvedPackages instead of serialized $installedPackages
• Fix of test cases for InstalledPackagesTrait

Usage of correct property

With #1, var_export() was replaced by serialize(). Therefore the BundleDescriber class property $installedPackages does no longer contain an array, but rather its serialized representation. This leads to the fact that in case one uses the InstalledPackagesTrait to access this property, it needs to be resolved first (using unserialize() on first access – this was already handled with #1) and should then return the resolved values from $resolvedPackages.

With #1, this was only partially implemented and has now been streamlined. Since the InstalledPackagesTraitTest was currently not included in the test execution workflow, those problems have not been discovered.

Fix of InstalledPackagesTraitTest

The Unit test class for InstalledPackagesTrait was currently not registered at the expected directory tests/Unit. This has now been streamlined and the tests have been adapted to the previous mentioned modifications in InstalledPackagesTrait.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

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100.0% Coverage
0.0% Duplication