node/test/parallel/test-fs-symlink-dir-junction.js

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'use strict';
const common = require('../common');
const fixtures = require('../common/fixtures');
const assert = require('assert');
const fs = require('fs');

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

// Test creating and reading symbolic link
const linkData = fixtures.path('cycles/');
const linkPath = tmpdir.resolve('cycles_link');

tmpdir.refresh();

fs.symlink(linkData, linkPath, 'junction', common.mustSucceed(() => {
  fs.lstat(linkPath, common.mustSucceed((stats) => {
    assert.ok(stats.isSymbolicLink());

    fs.readlink(linkPath, common.mustSucceed((destination) => {
      assert.strictEqual(destination, linkData);

      fs.unlink(linkPath, common.mustSucceed(() => {
        assert(!fs.existsSync(linkPath));
        assert(fs.existsSync(linkData));
      }));
    }));
  }));
}));

// Test invalid symlink
{
  const linkData = fixtures.path('/not/exists/dir');
  const linkPath = tmpdir.resolve('invalid_junction_link');

  fs.symlink(linkData, linkPath, 'junction', common.mustSucceed(() => {
    assert(!fs.existsSync(linkPath));

    fs.unlink(linkPath, common.mustSucceed(() => {
      assert(!fs.existsSync(linkPath));
    }));
  }));
}