tests: runtime: Adopt the test config path for Windows and others

[cosmo0920]

Without this patch, one of the runtime test cases is failing:

flb-rt-in_calyptia_fleet_test ....................***Failed    0.08 sec
Test in_calyptia_fleet_format...                [ OK ]
Test in_calyptia_fleet_timestamped_config_format... [ FAILED ]
  in_calyptia_fleet_test.c:146: Check value && strcmp(value, expectedValue) == 0... failed
  in_calyptia_fleet_test.c:159: Check value && strcmp(value, expectedValue) == 0... failed
FAILED: 1 of 2 unit tests has failed.

Fixed the Windows path expectations in in_calyptia_fleet_test.c. Both cases now use TEST_FLEET_CONFIG_DIR and PATH_SEPARATOR.

Verification:

• Focused target rebuilt successfully.
• Exact timestamped test: passed, all assertions.
• ctest --test-dir build -R "^flb-rt-in_calyptia_fleet_test$" --output-on-failure: passed, 1/1.
• Valgrind was not run because it is unavailable on Windows; no corresponding Python integration scenario exists.

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Testing
Before we can approve your change; please submit the following in a comment:

• Example configuration file for the change
• Debug log output from testing the change

• Attached Valgrind output that shows no leaks or memory corruption was found

If this is a change to packaging of containers or native binaries then please confirm it works for all targets.

• Run local packaging test showing all targets (including any new ones) build.
• Set ok-package-test label to test for all targets (requires maintainer to do).

Documentation

• Documentation required for this feature

Backporting

• Backport to latest stable release.

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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

Summary by CodeRabbit

• Bug Fixes
  • Improved fleet configuration path handling across platforms.
  • Updated validation for timestamped legacy .conf and YAML configuration files.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 0d77d6d6-7056-4bd0-b07a-441ae7d75346

📥 Commits

Reviewing files that changed from the base of the PR and between cf50b7e and 75fac0f.

📒 Files selected for processing (1)

• tests/runtime/in_calyptia_fleet_test.c

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📝 Walkthrough

Walkthrough

The runtime fleet tests now build expected legacy and YAML timestamped configuration paths with TEST_FLEET_CONFIG_DIR and the platform-specific PATH_SEPARATOR.

Changes

Fleet configuration test paths

Layer / File(s)	Summary
Update timestamped path expectations tests/runtime/in_calyptia_fleet_test.c	The legacy and YAML path expectations now use TEST_FLEET_CONFIG_DIR and PATH_SEPARATOR instead of hardcoded path components.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• fluent/fluent-bit#11962: Introduced and exercised the timestamped fleet configuration filename changes covered by these tests.

Suggested reviewers: edsiper

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the runtime test configuration path changes for Windows and other platforms.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch cosmo0920-fix-failing-test-cases-on-windows

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