test-dedup

Audit test suites and remove duplicate or redundant tests.

2|Updated Jan 24, 2026
One-click install
npx skills add https://github.com/ahrav/scratch-scanner-rs --skill test-dedup
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: test-dedup
Source: https://github.com/ahrav/scratch-scanner-rs/tree/main/.claude/skills/test-dedup
Command: npx skills add https://github.com/ahrav/scratch-scanner-rs --skill test-dedup

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps eliminate redundant, duplicate, or low-value tests within a codebase, particularly focusing on reducing noise from unit tests that are already covered by more robust property-based tests.

Core Features & Use Cases

  • Test Auditing: Analyzes test modules to identify and flag redundant test cases.
  • Redundancy Identification: Differentiates between truly unique tests and those subsumed by property-based or simulation tests.
  • Use Case: After implementing property-based tests for a module, use this Skill to identify and remove the now-redundant unit tests, leading to a cleaner, more efficient test suite.

Quick Start

Review the test suite for the encoding module to identify and remove redundant tests.

Frequently Asked Questions about test-dedup

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I remove redundant unit tests after adding property-based tests?

Remove redundant unit tests by auditing your test modules to identify cases already covered by property-based tests, then eliminating the duplicates to retain only tests that provide unique regression catching value.

What is test deduplication in a Rust codebase?

Test deduplication in a Rust codebase analyzes test modules to flag and remove duplicate or redundant test cases, prioritizing robust property-based tests over overlapping unit tests to reduce noise.

How do I audit a test suite to identify low-value tests?

Audit a test suite by analyzing test modules to identify low-value tests subsumed by property-based or simulation tests, ensuring each remaining test provides distinct coverage or documentation.

When should I prioritize property-based tests over unit tests?

Prioritize property-based tests over unit tests when coverage overlaps, keeping the property-based test as the primary signal and removing the redundant unit test to streamline the test suite.

Does test deduplication work for any module with overlapping test coverage?

Test deduplication works for any module where you need to analyze test modules to eliminate noise from overlapping coverage, ensuring each test provides unique value through documentation or regression catching.

Why are my unit tests considered redundant noise in my test suite?

Unit tests become redundant noise when their specific scenarios are already subsumed by broader property-based tests, meaning they no longer provide unique signal or distinct coverage for the module.