node/test/parallel/test-fs-promises-file-handle-op-errors.js

'use strict';
// Flags: --expose-internals

const common = require('../common');
const tmpdir = require('../common/tmpdir');

// The following tests validate aggregate errors are thrown correctly
// when both an operation and close throw.

const path = require('path');
const {
  readFile,
  writeFile,
  truncate,
  lchmod,
} = require('fs/promises');
const {
  FileHandle,
} = require('internal/fs/promises');

const assert = require('assert');
const originalFd = Object.getOwnPropertyDescriptor(FileHandle.prototype, 'fd');

let count = 0;
async function createFile() {
  const filePath = path.join(tmpdir.path, `op_errors_${++count}.txt`);
  await writeFile(filePath, 'content');
  return filePath;
}

async function checkOperationError(op) {
  try {
    const filePath = await createFile();
    Object.defineProperty(FileHandle.prototype, 'fd', {
      get: function() {
        // Verify that close is called when an error is thrown
        this.close = common.mustCall(this.close);
        const opError = new Error('INTERNAL_ERROR');
        opError.code = 123;
        throw opError;
      }
    });

    await assert.rejects(op(filePath), {
      name: 'Error',
      message: 'INTERNAL_ERROR',
      code: 123,
    });
  } finally {
    Object.defineProperty(FileHandle.prototype, 'fd', originalFd);
  }
}
(async function() {
  tmpdir.refresh();
  await checkOperationError((filePath) => truncate(filePath));
  await checkOperationError((filePath) => readFile(filePath));
  await checkOperationError((filePath) => writeFile(filePath, '123'));
  if (common.isOSX) {
    await checkOperationError((filePath) => lchmod(filePath, 0o777));
  }
})().then(common.mustCall());