test(utils): Add comprehensive unit tests for format-utils module

[mitsuki31]

Overview

This pull request introduces comprehensive unit tests for the format-utils module. The goal is to ensure that all utility functions and methods are thoroughly tested, covering a wide range of scenarios and edge cases to improve the module's reliability and maintainability.

Changes Made

Tests for DateFormatter Methods

• constructor:
  • Valid and invalid inputs.
• fromMicroseconds:
  • Valid and invalid inputs.
• Conversion Methods:
  • toMicroseconds, micros, toMilliseconds, and millis.
• Formatting Methods:
  • toISOString, toISO, toDateObject, toString, and toLocaleString with various locales.

Tests for FormatUtils Methods

• Utility Methods:
  • parseFormatObject (valid and invalid inputs).
  • sortThumbnailsByResolution (valid and invalid inputs).
• Thumbnail Handling:
  • getAuthorThumbnails (various scenarios).
  • getVideoThumbnails (various scenarios).
  • getAllThumbnails (various scenarios).
  • getThumbnailByResolution (various scenarios).
  • getThumbnail (various scenarios).
• Media Presence Check
  • hasVideo and hasAudio with formats containing or lacking video/audio.

Test Assets

• Several assets added for testing purposes:
  • test/assets/json/formats.json: Simulates video format data.
  • test/assets/json/videoThumbnails.json: Provides video thumbnail examples.
  • test/assets/json/authorThumbnails.json: Provides author thumbnail examples.

Impact

• Ensures proper validation of inputs for all utility methods.
• Enhances test coverage, making the module more robust against regressions.
• Validates edge cases and various scenarios, such as missing or malformed inputs.
• Provides a solid foundation for future updates or refactoring of the format-utils module.

Summary

These tests significantly improve the quality and maintainability of the format-utils module by:

• Validating critical utility methods.
• Handling a variety of input cases and scenarios.
• Supporting ongoing development with robust and reusable test assets.

This PR sets a higher standard for testing practices within the codebase.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.33%. Comparing base (b212902) to head (67a668d).
Report is 12 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #86      +/-   ##
==========================================
+ Coverage   77.52%   80.33%   +2.80%     
==========================================
  Files           9       10       +1     
  Lines         525      600      +75     
==========================================
+ Hits          407      482      +75     
  Misses        118      118              

Flag	Coverage Δ
Ubuntu	80.33% <ø> (+2.80%)	⬆️
Windows	80.00% <ø> (?)
all	80.33% <ø> (+2.80%)	⬆️
macOS	80.33% <ø> (+2.80%)	⬆️

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[mitsuki31]

Covered #84 and #85.