feat: added Client.check_switchers for smoke testing (local)

[petruki]

This pull request introduces support for local switcher validation in addition to remote validation, enhancing the flexibility of the Client.check_switchers method. It adds a new LocalSwitcherError exception and implements logic to check for switcher existence in local snapshots. Comprehensive tests are included to verify the new local validation behavior and error handling.

Local switcher validation:

• Added check_switchers function in snapshot_loader.py to verify switcher keys in a local snapshot, raising LocalSwitcherError if any are missing. (switcher_client/lib/snapshot_loader.py, switcher_client/lib/snapshot_loader.pyR61-R77)
• Introduced LocalSwitcherError exception for missing local switchers and updated the error exports. (switcher_client/errors/__init__.py, [1] [2]

Client logic changes:

• Modified Client.check_switchers to call local validation when running in local mode, otherwise defaulting to remote validation. (switcher_client/client.py, switcher_client/client.pyR174-R176)
• Updated imports to include check_switchers and LocalSwitcherError. (switcher_client/client.py, [1]; switcher_client/lib/snapshot_loader.py, [2]

Testing:

• Added and updated tests in test_client_check_switchers.py to cover local switcher validation, including scenarios for missing switchers and no snapshot loaded. (tests/test_client_check_switchers.py, [1] [2]

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

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