zig-testing

To write unit tests in Zig, you define test blocks using the built-in test runner and execute them with `zig test`. This Skill generates native Zig test code that aligns with your build setup and validates runtime behavior without external frameworks.

You use `testing.allocator` in Zig tests to detect memory leaks in allocation-heavy code. This Skill generates allocator-safe unit tests that instruct the use of this built-in tool to ensure proper memory management during verification.

You test error cases in Zig by using `expectError` to assert that specific errors occur. This Skill generates deterministic verification for failures, applying `expectError` and clear stop conditions to validate error handling safely.

Yes, you can test comptime logic in Zig natively without external tools. This Skill generates tests for compile-time logic using Zig's built-in test framework, ensuring your comptime code is validated correctly alongside runtime behavior.

The best way to diagnose failing Zig tests is to generate targeted test code that isolates the failure. This Skill diagnoses failing tests by applying correct Zig test constructs like `testing.expect*` and clear execution strategies to verify the code-under-test.

You need Zig test blocks when adding coverage, diagnosing failures, or improving reliability for utilities and systems code. This Skill applies when you explicitly request Zig testing for a codebase with identifiable code-under-test that exposes testable behavior.