Handsontable Unit Testing
handsontable/handsontable
Conventions for Handsontable's Jest unit and TypeScript type tests: where files go, how to run them, mocking limits and when to write an E2E test instead.
Testing patterns for Jest and Playwright. An agent skill from bybren-llc/safe-agentic-workflow.
Install Testing Patterns
$ npx skills add bybren-llc/safe-agentic-workflow --skill testing-patterns -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install bybren-llc/safe-agentic-workflow testing-patterns --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/bybren-llc/safe-agentic-workflow.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.gemini/skills/testing-patterns .claude/skills/testing-patterns && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "testing-patterns" agent skill from https://github.com/bybren-llc/safe-agentic-workflow/tree/main/.gemini/skills/testing-patterns into .claude/skills/testing-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-patterns", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/bybren-llc/safe-agentic-workflow/tree/main/.gemini/skills/testing-patternsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add bybren-llc/safe-agentic-workflow --skill testing-patterns -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install bybren-llc/safe-agentic-workflow testing-patterns --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bybren-llc/safe-agentic-workflow.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.gemini/skills/testing-patterns .agents/skills/testing-patterns && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "testing-patterns" agent skill from https://github.com/bybren-llc/safe-agentic-workflow/tree/main/.gemini/skills/testing-patterns into .agents/skills/testing-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-patterns", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add bybren-llc/safe-agentic-workflow --skill testing-patterns -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install bybren-llc/safe-agentic-workflow testing-patterns --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bybren-llc/safe-agentic-workflow.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.gemini/skills/testing-patterns .cursor/skills/testing-patterns && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "testing-patterns" agent skill from https://github.com/bybren-llc/safe-agentic-workflow/tree/main/.gemini/skills/testing-patterns into .cursor/skills/testing-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-patterns", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/bybren-llc/safe-agentic-workflow.git --path .gemini/skills/testing-patterns--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add bybren-llc/safe-agentic-workflow --skill testing-patterns -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install bybren-llc/safe-agentic-workflow testing-patterns --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bybren-llc/safe-agentic-workflow.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.gemini/skills/testing-patterns .gemini/skills/testing-patterns && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "testing-patterns" agent skill from https://github.com/bybren-llc/safe-agentic-workflow/tree/main/.gemini/skills/testing-patterns into .gemini/skills/testing-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-patterns", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install bybren-llc/safe-agentic-workflow testing-patternsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add bybren-llc/safe-agentic-workflow --skill testing-patterns -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/bybren-llc/safe-agentic-workflow.git skills-src && mkdir -p .github/skills && cp -r skills-src/.gemini/skills/testing-patterns .github/skills/testing-patterns && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "testing-patterns" agent skill from https://github.com/bybren-llc/safe-agentic-workflow/tree/main/.gemini/skills/testing-patterns into .github/skills/testing-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-patterns", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add bybren-llc/safe-agentic-workflow --skill testing-patterns -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install bybren-llc/safe-agentic-workflow testing-patterns --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bybren-llc/safe-agentic-workflow.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.gemini/skills/testing-patterns .opencode/skills/testing-patterns && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "testing-patterns" agent skill from https://github.com/bybren-llc/safe-agentic-workflow/tree/main/.gemini/skills/testing-patterns into .opencode/skills/testing-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing-patterns", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
testing-patterns- GitHub stars
- 421
- Token cost
- ~478 tokens
- SKILL.md length
- 50 words
- Files
- 2
- Skills in repo
- 42
- Repo updated
- First seen
- Licence
- MIT
At a glance
Testing patterns for Jest and Playwright. An agent skill from bybren-llc/safe-agentic-workflow.
- Setting up test fixtures
- SKILL.md covers Purpose, When This Skill Applies, Critical Rules and Test Commands, plus 2 more sections
- Calls yarn
- Validating RLS enforcement
What it does
Testing Patterns is an agent skill from bybren-llc/safe-agentic-workflow. Testing patterns for Jest and Playwright. Use when writing tests, setting up test fixtures, or validating RLS enforcement. Routes to existing test conventions.
Its SKILL.md is about 480 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `README.md`).
It sits in Testing & QA, covering Test strategy, Unit testing and Test data and fixtures. It works with Jest and Playwright. The repository describes itself as: SAW — SAFe Agentic Workflow AI Agent Harness for Multi-Agent Team Workflows Built on SAFe methodology (Scaled Agile Framework), adapted for AI agent teams (Now With AI-DLC!)… The licence is MIT.
When your agent uses it
- Setting up test fixtures
- Validating RLS enforcement
Example prompts
- “/testing-patterns”
What it can do on your machine
Read from SKILL.md and the folder at commit 26ca58b. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
yarn
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use yarn, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Testing Patterns loads about 478 tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 50 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from bybren-llc/safe-agentic-workflow at commit 26ca58b, republished under its MIT licence (© bybren-llc). 50 words, ~478 tokens.
Download SKILL.mdSave it as
.claude/skills/testing-patterns/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- testing-patterns
- description
- Testing patterns for Jest and Playwright. Use when writing tests, setting up test fixtures, or validating RLS enforcement. Routes to existing test conventions.
Testing Patterns Skill
Purpose
Guide consistent and effective testing. Routes to existing test patterns and provides evidence templates.
When This Skill Applies
- Writing unit or integration tests
- Setting up test fixtures with RLS
- Running test suites
- Packaging test evidence
Critical Rules
❌ FORBIDDEN
// Direct Prisma calls bypass RLS
const user = await prisma.user.findUnique({ where: { user_id } });
// Shared test state causes flaky tests
let sharedUser: User;
beforeAll(() => { sharedUser = createUser(); });✅ CORRECT
// Use RLS context helpers
const user = await withSystemContext(prisma, "test", async (client) => {
return client.user.findUnique({ where: { user_id } });
});
// Isolated test state
beforeEach(() => {
const testUser = createTestUser();
});
// Unique identifiers
const userId = `user-${crypto.randomUUID()}`;Test Commands
yarn test:unit # Unit tests
yarn test:integration # Integration tests
yarn test:e2e # E2E tests (Playwright)
yarn ci:validate # Full validationTest Directory Structure
__tests__/
├── unit/ # Fast, isolated tests
├── integration/ # API and database tests
├── e2e/ # End-to-end tests
└── setup.ts # Global setupEvidence Template
**Test Execution Evidence**
**Test Suite**: [unit/integration/e2e]
**Files Changed**: [list files]
**Test Results:**
- Total Tests: [X]
- Passed: [X]
- Failed: [0]
**Commands Run:**
```bash
yarn test:unit --coverage
## Reference
- **Jest Config**: `jest.config.js`
- **RLS Context**: `lib/rls-context.ts`© bybren-llc, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file in .gemini/skills/testing-patterns of bybren-llc/safe-agentic-workflow.
- SKILL.md
- README.md
Open the folder on GitHubat commit 26ca58b
Compare with similar skills
Testing Patterns next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Testing Patterns this skillbybren-llc/safe-agentic-workflow | 421 | — | ~478 | Automated safety check: Pass | MIT | |
| Handsontable Unit Testinghandsontable/handsontable | 22k | — | ~1.2k | Automated safety check: Pass | Custom licence | |
| Testing FundamentalsDanielPodolsky/ownyourcode | 290 | 1 repos | ~1.5k | Automated safety check: Pass | MIT | |
| Senior QAalirezarezvani/claude-skills | 28k | 1 repos | ~2.1k | Automated safety check: Pass | MIT | |
| Frontmcp Testingagentfront/frontmcp | 146 | — | ~10k | Automated safety check: Notes | Apache-2.0 | |
| Testing Patternssoftspark/ai-toolkit | 179 | — | ~1.6k | Automated safety check: Pass | Apache-2.0 |
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Related
Works with
Categories
Questions about Testing Patterns
What does Testing Patterns do?
Testing patterns for Jest and Playwright. An agent skill from bybren-llc/safe-agentic-workflow. Testing Patterns is an agent skill from bybren-llc/safe-agentic-workflow. Testing patterns for Jest and Playwright.
When should I use Testing Patterns?
Testing Patterns fits situations like: setting up test fixtures; validating RLS enforcement.
How do I install Testing Patterns in Claude Code?
Run `npx skills add bybren-llc/safe-agentic-workflow --skill testing-patterns -a claude-code`. Or copy the skill folder (.gemini/skills/testing-patterns in bybren-llc/safe-agentic-workflow) into .claude/skills/testing-patterns in your project. Claude Code loads it when a task matches its description.
How do I install Testing Patterns in Codex?
Run `npx skills add bybren-llc/safe-agentic-workflow --skill testing-patterns -a codex`. Or copy the skill folder (.gemini/skills/testing-patterns in bybren-llc/safe-agentic-workflow) into .agents/skills/testing-patterns in your project. Codex loads it when a task matches its description.
Can I use Testing Patterns in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add bybren-llc/safe-agentic-workflow --skill testing-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/testing-patterns, .gemini/skills/testing-patterns, .github/skills/testing-patterns and .opencode/skills/testing-patterns in your project.
What does Testing Patterns need to run?
Going by SKILL.md and its folder, Testing Patterns needs the command-line tools its instructions call (yarn).
Does Testing Patterns access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Testing Patterns safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Testing Patterns use?
Testing Patterns is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Testing Patterns use?
About 478 tokens (SKILL.md is roughly 1.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Testing Patterns?
Skills that share tags, products or a category with Testing Patterns: Handsontable Unit Testing (handsontable/handsontable, 22k stars), Testing Fundamentals (DanielPodolsky/ownyourcode, 290 stars), Senior QA (alirezarezvani/claude-skills, 28k stars) and Frontmcp Testing (agentfront/frontmcp, 146 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Testing Patterns?
bybren-llc (a GitHub organization) maintains it in bybren-llc/safe-agentic-workflow, which has 421 GitHub stars. The repository holds 42 skills in this directory. The repository was last updated on July 20, 2026.
Source: bybren-llc/safe-agentic-workflow on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.