[autobackport: sssd-2-9-4] tests: Add tests for AD Forest multidomain and gpo tests

[sssd-bot]

This is an automatic backport of PR#9045 tests: Add tests for AD Forest multidomain and gpo tests to branch sssd-2-9-4, created by @jakub-vavra-cz.

Caution

@jakub-vavra-cz The patches did not apply cleanly. It is necessary to resolve conflicts before merging this pull request. Commits that introduced conflict are marked with CONFLICT!.

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-pr9045-to-sssd-2-9-4
git checkout SSSD-sssd-backport-pr9045-to-sssd-2-9-4
git push sssd-bot SSSD-sssd-backport-pr9045-to-sssd-2-9-4 --force

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Original commits
be221ad - tests: add AD forest multidomain system tests
c611c78 - tests: Align AD forest test names and grouping

Backported commits

• fcf5161 - CONFLICT! tests: add AD forest multidomain system tests
• fab3747 - tests: Align AD forest test names and grouping

Conflicting Files Information (check for deleted and re-added files)

• CONFLICT! tests: add AD forest multidomain system tests

On branch SSSD-sssd-backport-pr9045-to-sssd-2-9-4
You are currently cherry-picking commit be221ad82.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   src/tests/system/conftest.py
	new file:   src/tests/system/tests/__init__.py
	new file:   src/tests/system/tests/adforest_fixtures.py
	new file:   src/tests/system/tests/test_adforest.py
	new file:   src/tests/system/tests/test_adforest_gpo.py

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   src/tests/system/tests/readme.rst

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Original Pull Request Body

Re-design and rewrite of legacy sssd-qe ad_forest and admultidomain suites into test_adforest.py and test_adforest_gpo.py. Covers lookup, auth, simple access, ad_access_filter, join other DC scenarios.

These suites are downstream (idmci) only.

Deprecates:
sssd-qe/client/ad_provider/ad_forest
sssd-qe/client/ad_provider/ad_gpo_hbac_multidomain
sssd/src/tests/multihost/admultidomain/test_multidomain.py

Not covered (different topology):
sssd/src/tests/multihost/admultidomain/test_multiforest.py

Depends on SSSD/sssd-test-framework#263

[jakub-vavra-cz]

Dropped the conflicting src/tests/system/tests/readme.rst from the PR.

[sssd-bot]

The pull request was accepted by @jakub-vavra-cz with the following PR CI status:

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🟢 CodeQL (success)
🟢 ci / prepare (success)
⚪ ci / system (centos-8) (cancelled)
🟢 Static code analysis / codeql (success)
🟢 Static code analysis / files-changed (success)
🟢 Static code analysis / pre-commit (success)
🟢 Static code analysis / python-system-tests (success)

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