Function ensureDirExists

packages/compiler-cli/test/test_support.ts:78–88

(absolutePathToDir: string)

  };

  function ensureDirExists(absolutePathToDir: string) {
    if (fs.existsSync(absolutePathToDir)) {
      if (!fs.statSync(absolutePathToDir).isDirectory()) {
        throw new Error(`'${absolutePathToDir}' exists and is not a directory.`);
      }
    } else {
      const parentDir = path.dirname(absolutePathToDir);
      ensureDirExists(parentDir);
      fs.mkdirSync(absolutePathToDir);
    }
  }

  function write(fileName: string, content: string) {
    const absolutePathToFile = path.resolve(basePath, fileName);