Function createMockFs

sdk/src/__tests__/read-files.test.ts:20–69

(config: {
  files?: Record<string, { content: string; size?: number }>
  errors?: Record<string, { code?: string; message?: string }>
})

// Helper to create a mock filesystem
function createMockFs(config: {
  files?: Record<string, { content: string; size?: number }>
  errors?: Record<string, { code?: string; message?: string }>
}): CodebuffFileSystem {
  const { files = {}, errors = {} } = config

  return {
    readFile: async (filePath: PathLike) => {
      const pathStr = String(filePath)
      if (errors[pathStr]) {
        throw createNodeError(
          errors[pathStr].message || 'Unknown error',
          errors[pathStr].code || 'UNKNOWN',
        )
      }
      if (files[pathStr]) {
        return files[pathStr].content
      }
      throw createNodeError(
        `ENOENT: no such file or directory: ${pathStr}`,
        'ENOENT',
      )
    },
    stat: async (filePath: PathLike) => {
      const pathStr = String(filePath)
      if (errors[pathStr]) {
        throw createNodeError(
          errors[pathStr].message || 'Unknown error',
          errors[pathStr].code || 'UNKNOWN',
        )
      }
      if (files[pathStr]) {
        return {
          size: files[pathStr].size ?? files[pathStr].content.length,
          isDirectory: () => false,
          isFile: () => true,
          atimeMs: Date.now(),
          mtimeMs: Date.now(),
        }
      }
      throw createNodeError(
        `ENOENT: no such file or directory: ${pathStr}`,
        'ENOENT',
      )
    },
    readdir: async () => [],
    mkdir: async () => undefined,
    writeFile: async () => undefined,
  } as unknown as CodebuffFileSystem
}

describe('getFiles', () => {
  let isFileIgnoredSpy: ReturnType<typeof spyOn>