Test Quality

by decebals

Test Quality is a Quality skill for Claude Code, published by decebals in claude-code-java.

714 stars142 forkson decebals/claude-code-javaAdded 2026/08/23+1% in starsRepository updated 2026/02/08

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ai-assisted-developmentclaude-codeclaude-code-skillsdeveloper-toolsjava

Install in seconds

Install Test Quality

Copy Test Quality into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/decebals/claude-code-java/tree/main/.claude/skills/test-quality ~/.claude/skills/test-quality

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/decebals/claude-code-java.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: .claude/skills/test-quality/SKILL.md in decebals/claude-code-java
Installs to: ~/.claude/skills/test-quality
Collection: One of 18 skills cataloged from this repository
Category: Quality — 1354 skills

What Test Quality does

Test Quality writes maintainable Java tests with JUnit 5 and AssertJ. Use it when adding tests, improving coverage, or reviewing test classes for better structure and assertions.

Test Quality is cataloged under Quality on DirSkills. Test Quality comes from a repository tagged ai-assisted-development, claude-code, claude-code-skills, developer-tools and java.

Documentation

README

Excerpt

Test Quality Skill (JUnit 5 + AssertJ)

Write high-quality, maintainable tests for Java projects using modern best practices.

When to Use

Writing new test classes
Reviewing/improving existing tests
User asks to "add tests" / "improve test coverage"
Code review mentions missing tests

Framework Preferences

JUnit 5 (Jupiter)

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Nested;
import static org.assertj.core.api.Assertions.*;

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Test Quality

What else does decebals publish alongside Test Quality?
Test Quality is one of 18 skills that DirSkills catalogs from decebals/claude-code-java, the repository it ships in. Its siblings there include API Contract Review, Architecture Review and Changelog Generator. Each one is a separate skill with its own page in this directory, installs the same way Test Quality does, and is maintained by decebals in that same repository. The rest of the collection is listed on the decebals/claude-code-java page.
How does Test Quality compare to other Quality skills?
Test Quality ranks #1041 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Test Quality against them. Open each page to compare what they document and how they install.