Optimized cache handler

[petruki]

This pull request introduces several updates across the codebase, including dependency upgrades, enhancements to the Cache class, and minor adjustments to test files for consistency. Below is a summary of the most important changes grouped by theme:

Dependency Updates

• Upgraded mongoose to version 8.16.1, switcher-client to version 4.3.0, eslint to version 9.30.1, and jest to version 30.0.4 in package.json. These upgrades improve compatibility and address potential bugs.

Enhancements to the Cache Class

• Refactored the Cache class to use a singleton pattern with a private #instance property. This ensures a single shared instance of the cache throughout the application.
• Modified methods in the Cache class (#set, get, getAll) to use the private #instance property instead of a public cache property. This improves encapsulation and data security.

Test File Updates

• Standardized comments in test files by changing comment prefixes (e.g., // Given, // Test) to lowercase (// given, // test, // mock) for consistency across all test cases. This change affects multiple test files, including client-api.test.js, component.test.js, relay.test.js, and unit-test/client/relay.test.js. [1] [2] [3] [4]
• Updated unit tests for the Cache class to use the singleton instance (Cache.getInstance()) and added assertions to validate cache initialization.

These changes collectively improve the maintainability, consistency, and functionality of the codebase.

[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

See analysis details on SonarQube Cloud