Managing Snapshot Tests

This skill empowers Claude to efficiently manage snapshot tests by analyzing differences, selectively updating snapshots based on intentional changes, and identifying potential regressions. It provides a streamlined approach to maintain snapshot test suites across various JavaScript testing frameworks.

Testing & QA Plugin marketplace

Install

Claude Code plugin
/plugin marketplace add jeremylongshore/claude-code-plugins-plus-skills
/plugin install snapshot-test-manager@claude-code-plugins-plus

Run these inside Claude Code. The skill comes with its plugin.

What this skill does

This skill enables Claude to manage and update snapshot tests using intelligent diff analysis and selective updates. It is triggered when the user asks to analyze snapshot failures, update snapshots, or manage snapshot tests in general. It helps distinguish intentional changes from regressions, selectively update snapshots, and validate snapshot integrity. Use this when the user mentions "snapshot tests", "update snapshots", "snapshot failures", or requests to run "/snapshot-manager" or "/sm". It supports Jest, Vitest, Playwright, and Storybook frameworks.

Trigger phrases

Claude loads this skill automatically when you say things like:

“snapshot tests”“update snapshots”“snapshot failures”“/snapshot-manager”“/sm”

How it works

  1. Selective Updating: Updates specific snapshots that reflect intentional UI or code changes, while preserving snapshots that have caught regressions.
  2. Batch Processing: Allows for batch updating of related snapshots to streamline the update process.

When to use it

  • Analyze snapshot test failures after code changes.
  • Update snapshot tests to reflect intentional UI changes.
  • Identify and preserve snapshots that are catching regressions.

Best practices

  • Framework Awareness: Specify the testing framework (Jest, Vitest, etc.) if known for more accurate analysis.
  • Selective Updates: Avoid blindly updating all snapshots. Focus on intentional changes and investigate unexpected diffs.

Details

Skill name
managing-snapshot-tests
Plugin
snapshot-test-manager

FAQ

What does the Managing Snapshot Tests skill do?

This skill enables Claude to manage and update snapshot tests using intelligent diff analysis and selective updates. It is triggered when the user asks to analyze snapshot failures, update snapshots, or manage snapshot tests in general. It helps distinguish intentional changes from regressions, selectively update snapshots, and validate snapshot integrity. Use this when the user mentions "snapshot tests", "update snapshots", "snapshot failures", or requests to run "/snapshot-manager" or "/sm". It supports Jest, Vitest, Playwright, and Storybook frameworks.

How do I install the Managing Snapshot Tests skill?

Claude Code plugin: /plugin marketplace add jeremylongshore/claude-code-plugins-plus-skills then /plugin install snapshot-test-manager@claude-code-plugins-plus. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

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