filesystem-spec.js

'use strict';

const assert = require('assert');
const fs = require('../lib/wrapped-fs').default;
const path = require('path');
const rimraf = require('rimraf');

const Filesystem = require('../lib/filesystem').Filesystem;

describe('filesystem', function () {
  beforeEach(() => {
    rimraf.sync(path.join(__dirname, '..', 'tmp'), fs);
  });

  it('should does not throw an error when the src path includes a symbol link', async () => {
    /**
     * Directory structure:
     * tmp
     * ├── private
     * │   └── var
     * │       ├── app
     * │       │   └── file.txt -> ../file.txt
     * │       └── file.txt
     * └── var -> private/var
     */
    const tmpPath = path.join(__dirname, '..', 'tmp');
    const privateVarPath = path.join(tmpPath, 'private', 'var');
    const varPath = path.join(tmpPath, 'var');
    fs.mkdirSync(privateVarPath, { recursive: true });
    fs.symlinkSync(path.relative(tmpPath, privateVarPath), varPath);

    const originFilePath = path.join(varPath, 'file.txt');
    fs.writeFileSync(originFilePath, 'hello world');
    const appPath = path.join(varPath, 'app');
    fs.mkdirpSync(appPath);
    fs.symlinkSync('../file.txt', path.join(appPath, 'file.txt'));

    const filesystem = new Filesystem(varPath);
    assert.doesNotThrow(() => {
      filesystem.insertLink(path.join(appPath, 'file.txt'));
    });
  });
});