Function withMountedReplEnv

src/ink/replFlickerOracle.test.tsx:52–73

(fn: () => Promise<T>)

})

async function withMountedReplEnv<T>(fn: () => Promise<T>): Promise<T> {
  const prevNoFlicker = process.env.CLAUDE_CODE_NO_FLICKER
  const prevApiKey = process.env.ANTHROPIC_API_KEY
  process.env.CLAUDE_CODE_NO_FLICKER = '1'
  process.env.ANTHROPIC_API_KEY = 'test-key'

  try {
    return await fn()
  } finally {
    if (prevNoFlicker === undefined) {
      delete process.env.CLAUDE_CODE_NO_FLICKER
    } else {
      process.env.CLAUDE_CODE_NO_FLICKER = prevNoFlicker
    }

    if (prevApiKey === undefined) {
      delete process.env.ANTHROPIC_API_KEY
    } else {
      process.env.ANTHROPIC_API_KEY = prevApiKey
    }
  }
}

function readFrameMetrics(frame: FrameEvent): InteractionFrameMetrics {
  return {