[autobackport: sssd-2-9] tests: reorganize infopipe tests by interface

[sssd-bot]

This is an automatic backport of PR#8451 tests: reorganize infopipe tests by interface to branch sssd-2-9, created by @aborah-sudo.

Please make sure this backport is correct.

Note

The commits were cherry-picked without conflicts.

You can push changes to this pull request

git remote add sssd-bot git@github.com:sssd-bot/sssd.git
git fetch sssd-bot refs/heads/SSSD-sssd-backport-pr8451-to-sssd-2-9
git checkout SSSD-sssd-backport-pr8451-to-sssd-2-9
git push sssd-bot SSSD-sssd-backport-pr8451-to-sssd-2-9 --force

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Original commits
1571946 - tests: reorganize infopipe tests by interface

Backported commits

• 836c54c - tests: reorganize infopipe tests by interface

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Original Pull Request Body

Group the infopipe tests into logical sections based on the D-Bus interface they exercise:

• Infopipe (root object)
• Domains
• Users
• Groups
• Mixed/Combined interfaces

This is a pure reorganization with no logic changes to improve test maintainability and readability.

[gemini-code-assist]

Code Review

This pull request reorganizes the infopipe tests into logical sections based on the D-Bus interface they exercise. The changes are a pure reorganization with no logic changes, which improves test maintainability and readability as intended. The new structure is clear and the new tests for basic D-Bus functionality are well-written. I find no issues with this backport.

[sssd-bot]

The pull request was accepted by @alexey-tikhonov with the following PR CI status:

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🟢 CodeQL (success)
🟢 rpm-build:centos-stream-9-x86_64:upstream (success)
🟢 ci / prepare (success)
🟢 ci / system (centos-9) (success)
🟢 Static code analysis / codeql (success)
🟢 Static code analysis / pre-commit (success)
🟢 Static code analysis / python-system-tests (success)

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