🧪 [testing improvement] Add unit test for IconManager::supports_themes with empty manager

[bearice]

🎯 What: The testing gap addressed

Added a unit test for IconManager::supports_themes when using an empty IconManager.

📊 Coverage: What scenarios are now tested

• Verifies that supports_themes returns false for any icon name when the manager is newly initialized.
• Covers scenarios with valid icon names ("cat", "parrot") and an empty string.

✨ Result: The improvement in test coverage

Introduced the first automated unit test to the project, establishing a pattern for testing IconManager functionality without external dependencies.

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PR created automatically by Jules for task 432283218453623839 started by @bearice

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[gemini-code-assist]

Summary of Changes

Hello @bearice, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the project's test suite by introducing a new unit test for the IconManager component. The test specifically validates the supports_themes method's behavior when the manager is in an empty state, confirming its correct response for various icon name inputs. This addition improves code robustness and establishes a foundational testing pattern for IconManager's core functionalities.

Highlights

• Unit Test Addition: A new unit test has been added to src/icon_manager.rs.
• Targeted Functionality: The test specifically targets the supports_themes method of the IconManager.
• Empty Manager Scenario: It verifies the behavior of supports_themes when the IconManager is empty, ensuring it returns false for any icon name.
• Test Coverage Improvement: This is the first automated unit test for IconManager functionality, establishing a pattern for future testing without external dependencies.

Changelog

• src/icon_manager.rs
  • Added a new #[cfg(test)] module containing a unit test for IconManager::supports_themes.

Activity

• The pull request was automatically generated by Jules based on a task initiated by @bearice.

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[gemini-code-assist]

Code Review

This pull request adds the first unit test to the project, targeting IconManager::supports_themes with an empty manager. This is a great improvement. The test is logical and correctly verifies the behavior. I've made one suggestion to use assert_eq! for more descriptive failure messages, which is a common Rust testing practice that enhances maintainability.

[gemini-code-assist]

For better test failure diagnostics, it's recommended to use assert_eq! instead of assert!(!...). When an assert_eq! fails, it shows the values of the left and right sides of the comparison, which makes debugging easier. For example, if manager.supports_themes("cat") were to return true, the error message would clearly state assertion failed: (left == right)left:true, right: false``, which is more informative than a generic assertion failure.

Suggested change

	assert!(!manager.supports_themes("cat"));
	assert!(!manager.supports_themes("parrot"));
	assert!(!manager.supports_themes(""));
	assert_eq!(manager.supports_themes("cat"), false);
	assert_eq!(manager.supports_themes("parrot"), false);
	assert_eq!(manager.supports_themes(""), false);