Jest Testing Patterns
ChrisWiles/claude-code-showcase
Jest patterns for React Native style tests: TDD discipline, mock factory functions, module and GraphQL hook mocking, custom render helpers and anti-patterns to avoid.
Researcher for converting unit tests to browser tests for Project Bedrock.
Install Test Conversion Researcher
$ npx skills add nwjs/chromium.src --skill test-conversion-researcher -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nwjs/chromium.src test-conversion-researcher --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/nwjs/chromium.src.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agents/projects/bedrock/test-conversion-researcher .claude/skills/test-conversion-researcher && 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 "test-conversion-researcher" agent skill from https://github.com/nwjs/chromium.src/tree/main/agents/projects/bedrock/test-conversion-researcher into .claude/skills/test-conversion-researcher/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-conversion-researcher", 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/nwjs/chromium.src/tree/main/agents/projects/bedrock/test-conversion-researcherType 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 nwjs/chromium.src --skill test-conversion-researcher -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nwjs/chromium.src test-conversion-researcher --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwjs/chromium.src.git skills-src && mkdir -p .agents/skills && cp -r skills-src/agents/projects/bedrock/test-conversion-researcher .agents/skills/test-conversion-researcher && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "test-conversion-researcher" agent skill from https://github.com/nwjs/chromium.src/tree/main/agents/projects/bedrock/test-conversion-researcher into .agents/skills/test-conversion-researcher/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-conversion-researcher", 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 nwjs/chromium.src --skill test-conversion-researcher -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nwjs/chromium.src test-conversion-researcher --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwjs/chromium.src.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/agents/projects/bedrock/test-conversion-researcher .cursor/skills/test-conversion-researcher && 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 "test-conversion-researcher" agent skill from https://github.com/nwjs/chromium.src/tree/main/agents/projects/bedrock/test-conversion-researcher into .cursor/skills/test-conversion-researcher/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-conversion-researcher", 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/nwjs/chromium.src.git --path agents/projects/bedrock/test-conversion-researcher--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 nwjs/chromium.src --skill test-conversion-researcher -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nwjs/chromium.src test-conversion-researcher --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwjs/chromium.src.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/agents/projects/bedrock/test-conversion-researcher .gemini/skills/test-conversion-researcher && 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 "test-conversion-researcher" agent skill from https://github.com/nwjs/chromium.src/tree/main/agents/projects/bedrock/test-conversion-researcher into .gemini/skills/test-conversion-researcher/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-conversion-researcher", 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 nwjs/chromium.src test-conversion-researcherInstalls 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 nwjs/chromium.src --skill test-conversion-researcher -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nwjs/chromium.src.git skills-src && mkdir -p .github/skills && cp -r skills-src/agents/projects/bedrock/test-conversion-researcher .github/skills/test-conversion-researcher && 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 "test-conversion-researcher" agent skill from https://github.com/nwjs/chromium.src/tree/main/agents/projects/bedrock/test-conversion-researcher into .github/skills/test-conversion-researcher/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-conversion-researcher", 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 nwjs/chromium.src --skill test-conversion-researcher -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install nwjs/chromium.src test-conversion-researcher --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwjs/chromium.src.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/agents/projects/bedrock/test-conversion-researcher .opencode/skills/test-conversion-researcher && 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 "test-conversion-researcher" agent skill from https://github.com/nwjs/chromium.src/tree/main/agents/projects/bedrock/test-conversion-researcher into .opencode/skills/test-conversion-researcher/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-conversion-researcher", 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
test-conversion-researcher- GitHub stars
- 160
- Token cost
- ~433 tokens
- SKILL.md length
- 209 words
- Files
- 1
- Skills in repo
- 64
- Repo updated
- First seen
- Licence
- BSD-3-Clause
At a glance
Researcher for converting unit tests to browser tests for Project Bedrock.
- Needs to understand the current codebase behavior while removing complex Browser dependencies from tests
- SKILL.md covers Goal and Instructions
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve Unit testing
What it does
Test Conversion Researcher is an agent skill from nwjs/chromium.src. Researcher for converting unit tests to browser tests for Project Bedrock. Invoke this when the user needs to understand the current codebase behavior while removing complex Browser dependencies from tests.
Its SKILL.md is about 430 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Testing & QA, covering Unit testing. The repository describes itself as: Chromium codebase with NW.js modifications. Based on https://chromium.googlesource.com/chromium/src.git. The licence is BSD-3-Clause.
When your agent uses it
- Needs to understand the current codebase behavior while removing complex Browser dependencies from tests
- Tasks that involve Unit testing
Example prompts
- “/test-conversion-researcher”
What it can do on your machine
Read from SKILL.md and the folder at commit a9e8946. 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
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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
Test Conversion Researcher loads about 433 tokens when it runs. Until then it costs about 58 tokens; SKILL.md has 209 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 nwjs/chromium.src at commit a9e8946, republished under its BSD-3-Clause licence (© nwjs). 209 words, ~433 tokens.
Download SKILL.mdSave it as
.claude/skills/test-conversion-researcher/SKILL.md (or your agent's skills folder).- name
- test-conversion-researcher
- description
- Researcher for converting unit tests to browser tests for Project Bedrock. Invoke this when the user needs to understand the current codebase behavior while removing complex Browser dependencies from tests.
Role
You are a General Purpose Researcher for Chromium. Your goal is to analyze a coding problem, perform code search, and read the filesystem to figure out a good approach or solution.
Goal
Your job is to research a given problem by searching the codebase and reading relevant files. You must synthesize your findings and write a detailed execution plan into the target file path provided in your inputs (which will be in the artifacts directory).
Instructions
- Use code search tools to find relevant code patterns.
- Use file reading tools to understand implementation details.
- Analyze the findings and synthesize them into a coherent recommendation.
- Create and write your plan to the specified target path using the
write_to_file tool with
IsArtifact: true. Do NOT modify any existing codebase files.
Common Browser Test Pitfalls to Consider in Plan
- Un-navigated WebContents: Remind in plan that creating a
WebContentswithout navigating it can leave the process ID uninitialized, causing crashes on bots. - ChromeOS Window Management: Remind in plan that creating
AppWindowelements on ChromeOS requires full initialization (likeInit()) to avoid segmentation faults inMultiUserWindowManager. - Safe Teardown: Remind in plan that UI elements on ChromeOS should be
closed via their native widgets (e.g.,
GetBaseWindow()->Close()) rather than direct destruction methods to avoid observer crashes.
© nwjs, BSD-3-Clause. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in agents/projects/bedrock/test-conversion-researcher of nwjs/chromium.src.
Open the folder on GitHubat commit a9e8946
Compare with similar skills
Test Conversion Researcher 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 |
|---|---|---|---|---|---|---|
| Test Conversion Researcher this skillnwjs/chromium.src | 160 | — | ~433 | Automated safety check: Pass | BSD-3-Clause | |
| Jest Testing PatternsChrisWiles/claude-code-showcase | 6.1k | 7 repos | ~1.5k | Automated safety check: Pass | None | |
| Rust TDD Workflowrtk-ai/rtk | 83k | — | ~753 | Automated safety check: Notes | Apache-2.0 | |
| Test Writing WorkflowiOfficeAI/AionUi | 33k | 1 repos | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| Adk Verify Snippetsgoogle/adk-python | 22k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| RTK Filter TDD in Rustrtk-ai/rtk | 83k | — | ~1.9k | Automated safety check: Notes | Apache-2.0 |
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Test Writing Workflow
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Questions about Test Conversion Researcher
What does Test Conversion Researcher do?
Researcher for converting unit tests to browser tests for Project Bedrock. src. Researcher for converting unit tests to browser tests for Project Bedrock.
When should I use Test Conversion Researcher?
Test Conversion Researcher fits situations like: needs to understand the current codebase behavior while removing complex Browser dependencies from tests; tasks that involve Unit testing.
How do I install Test Conversion Researcher in Claude Code?
Run `npx skills add nwjs/chromium.src --skill test-conversion-researcher -a claude-code`. Or copy the skill folder (agents/projects/bedrock/test-conversion-researcher in nwjs/chromium.src) into .claude/skills/test-conversion-researcher in your project. Claude Code loads it when a task matches its description.
How do I install Test Conversion Researcher in Codex?
Run `npx skills add nwjs/chromium.src --skill test-conversion-researcher -a codex`. Or copy the skill folder (agents/projects/bedrock/test-conversion-researcher in nwjs/chromium.src) into .agents/skills/test-conversion-researcher in your project. Codex loads it when a task matches its description.
Can I use Test Conversion Researcher 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 nwjs/chromium.src --skill test-conversion-researcher -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/test-conversion-researcher, .gemini/skills/test-conversion-researcher, .github/skills/test-conversion-researcher and .opencode/skills/test-conversion-researcher in your project.
What does Test Conversion Researcher need to run?
SKILL.md names no scripts, command-line tools or credentials: Test Conversion Researcher is instructions for the agent only.
Does Test Conversion Researcher 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 Test Conversion Researcher 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 Test Conversion Researcher use?
Test Conversion Researcher is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Test Conversion Researcher use?
About 433 tokens (SKILL.md is roughly 1.7k 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 Test Conversion Researcher?
Skills that share tags, products or a category with Test Conversion Researcher: Jest Testing Patterns (ChrisWiles/claude-code-showcase, 6.1k stars), Rust TDD Workflow (rtk-ai/rtk, 83k stars), Test Writing Workflow (iOfficeAI/AionUi, 33k stars) and Adk Verify Snippets (google/adk-python, 22k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Test Conversion Researcher?
nwjs (a GitHub organization) maintains it in nwjs/chromium.src, which has 160 GitHub stars. The repository holds 64 skills in this directory. The repository was last updated on October 3, 2026.
Source: nwjs/chromium.src on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.