Babysitter cli-mock-stdin

Name: cli-mock-stdin
Author: a5c-ai

Create mock stdin utilities for interactive CLI testing.

install

source · Clone the upstream repo

git clone https://github.com/a5c-ai/babysitter

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/a5c-ai/babysitter "$T" && mkdir -p ~/.claude/skills && cp -r "$T/library/specializations/cli-mcp-development/skills/cli-mock-stdin" ~/.claude/skills/a5c-ai-babysitter-cli-mock-stdin && rm -rf "$T"

manifest: library/specializations/cli-mcp-development/skills/cli-mock-stdin/SKILL.md

CLI Mock Stdin

Create mock stdin utilities for testing.

Generated Patterns

import { Readable } from 'stream';

export function mockStdin(inputs: string[]): Readable {
  let index = 0;
  return new Readable({
    read() {
      if (index < inputs.length) {
        setTimeout(() => {
          this.push(inputs[index++] + '\n');
        }, 10);
      } else {
        this.push(null);
      }
    },
  });
}

export async function runWithStdin(
  cmd: () => Promise<void>,
  inputs: string[]
): Promise<void> {
  const originalStdin = process.stdin;
  Object.defineProperty(process, 'stdin', { value: mockStdin(inputs) });
  try {
    await cmd();
  } finally {
    Object.defineProperty(process, 'stdin', { value: originalStdin });
  }
}

Target Processes

cli-unit-integration-testing
interactive-prompt-system