CLI Snapshot Tester

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Set up snapshot testing for CLI output with update workflows and diff reporting.

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Details

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CLI Snapshot TesterStart free

What this skill tells your AI

The instructions your AI receives, as published by a5c-ai/babysitter in library/specializations/cli-mcp-development/skills/cli-snapshot-tester/SKILL.md and read by Ahel’s review.

Set up snapshot testing for CLI output.

Generated Patterns

import { execSync } from 'child_process';
import fs from 'fs';
import path from 'path';

export function runCliSnapshot(cmd: string, name: string): void {
  const output = execSync(cmd, { encoding: 'utf-8' });
  const snapshotPath = path.join('__snapshots__', `${name}.txt`);

  if (process.env.UPDATE_SNAPSHOTS) {
    fs.mkdirSync(path.dirname(snapshotPath), { recursive: true });
    fs.writeFileSync(snapshotPath, output);
    return;
  }

  const expected = fs.readFileSync(snapshotPath, 'utf-8');
  expect(output).toBe(expected);
}

Target Processes

cli-unit-integration-testing
cli-documentation-generation

Signals

GitHub stars: 2k
Forks: 113
Last commit: Sep 2026

Advanced

Item type: skill
Key: cli-snapshot-tester
Source: github.com/a5c-ai/babysitter

github.com/a5c-ai/babysitter