A guide to software testing methods, covering unit tests for small pieces of code, integration tests for connected parts, and end-to-end tests for complete user flows.

Use it when planning test coverage, selecting test types, setting up test automation, or reviewing assertions and quality measures.

It helps choose a balanced test plan and keep tests reliable, isolated, understandable, and useful in automated builds.

test — Skill for Claude Code and Codex by DongDuong2001: A guide to software testing methods, covering unit tests…

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add skills/dongduong2001/pudo-code-system/test

Any agent

npx skills add DongDuong2001/pudo-code-system --skill test

Clone the repo

git clone --depth 1 https://github.com/DongDuong2001/pudo-code-system

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/dongduong2001/pudo-code-system/test.svg)](https://agentmods.dev/skills/dongduong2001/pudo-code-system/test)

Your own site

<a href="https://agentmods.dev/skills/dongduong2001/pudo-code-system/test"><img src="https://agentmods.dev/badge/skills/dongduong2001/pudo-code-system/test.svg" alt="Measured on agentmods" height="20"></a>

Per session 9 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 147 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5	$0.00009	$0.00147
Opus 5	$0.00005	$0.00073
Sonnet 5	$0.00002	$0.00029
Haiku 4.5	$0.00001	$0.00015

Measured 4d ago against content hash 43d24b0c54de, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

test scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/test/SKILL.md · 20 lines

What it actually says

Test Skill

This skill encompasses the general testing strategies, focusing on ensuring quality, reliability, and correctness of software.

When to use this skill

When defining a testing strategy for a project.
When determining the right mix of unit, integration, and E2e tests.
When setting up test automation and CI/CD pipelines for tests.
When dealing with code coverage and quality metrics.

Guidelines

Follow the Testing Pyramid: Many unit tests, fewer integration tests, and even fewer E2E tests.
Tests should be deterministic, fast, and isolated.
Ensure clear assertions in every test (Arrange, Act, Assert).

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

4d ago First seen · 20 lines · 9 tokens per session scan A 43d24b0c54de

Subscribe to this mod's changes

test is a skill published in the GitHub repository DongDuong2001/pudo-code-system (5 stars, last pushed 28d ago), licensed MIT. It adds 9 tokens to every session and 147 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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