Refactor code to extract pure logic and isolate I/O for testability.
npx skills add https://github.com/multicam/ikigai-rev --skill testability-multicam
Please help me install this Agent Skill. Skill: testability Source: https://github.com/multicam/ikigai-rev/tree/main/.claude-i/library/testability Command: npx skills add https://github.com/multicam/ikigai-rev --skill testability-multicam
Code that's hard to test signals design weaknesses. This Skill helps identify and apply refactoring patterns to make logic more testable and maintainable.
Identify hard-to-test modules, extract pure logic, convert side-effectful wrappers, and run tests to verify improved test coverage.
High-intent search queries and answers about installing and using this skill.
To improve testability, you extract pure logic from I/O operations and apply structured refactoring patterns. This separates side effects from core logic, enabling deterministic tests and clearer failure modes across modules.
Mocking vendor calls requires wrapping external dependencies in controlled interfaces. By applying wrapper-based testing patterns around vendor calls, you enable mocking in tests and isolate modules for deterministic verification.
Extracting pure functions involves isolating logic from side effects and I/O to create testable units. This pattern ensures observable behavior without external state changes, supporting modular and deterministic test coverage.
Applying early returns reduces conditional complexity by flattening nested logic paths. This refactoring pattern improves test coverage by making individual code branches more accessible and failure modes clearer.
Hard-to-test code signals design weaknesses because tangled logic and side effects prevent deterministic verification. Refactoring towards testability exposes these structural flaws, enforcing clean interfaces and modular behavior.
Converting infallible helpers to void-return patterns simplifies testing when helpers perform side effects without meaningful return values. This pattern removes unnecessary return value assertions, streamlining test expectations.
mgreenlyRefactor entangled code to improve testability with extraction and wrapping patterns.
joshribakoffTest pure logic and math functions in isolation using Vitest.
nounderTest Effect.ts success and failure paths with deterministic concurrency handling.
CarGDevRefactor code incrementally using SOLID principles and design patterns.
