# Description of Changes
Updated test files to use fixed string identifiers and timestamps
instead of random UUIDs and system-dependent times. These changes make
the tests more deterministic and easier to debug.
**Test determinism and clarity improvements:**
* Replaced randomly generated UUIDs with fixed string identifiers in
test cases for `FileStorageTest.java` and `TaskManagerTest.java` to
ensure predictable test data.
* Changed usages of `System.currentTimeMillis()` and `Instant.now()` to
fixed values in tests for `TempFileCleanupServiceTest.java`,
`FileMonitorTest.java`, and `TextFinderTest.java` to avoid flakiness due
to timing issues.
* Improved code clarity by adding explanatory comments for time offsets
and by using direct string comparisons instead of `equals()` where
appropriate.
* Refactored a timeout simulation in `JobExecutorServiceTest.java` to
use busy-waiting instead of `Thread.sleep`, reducing test flakiness and
improving reliability.
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## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
---------
Signed-off-by: Balázs Szücs <bszucs1209@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
