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node_modules/resolve/test/symlinks.js 1.83 KB
aaac7fed   liuqimichale   add
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  var path = require('path');
  var fs = require('fs');
  var test = require('tape');
  var resolve = require('../');
  
  var symlinkDir = path.join(__dirname, 'resolver', 'symlinked', 'symlink');
  try {
      fs.unlinkSync(symlinkDir);
  } catch (err) {}
  try {
      fs.symlinkSync('./_/symlink_target', symlinkDir, 'dir');
  } catch (err) {
      // if fails then it is probably on Windows and lets try to create a junction
      fs.symlinkSync(path.join(__dirname, 'resolver', 'symlinked', '_', 'symlink_target') + '\\', symlinkDir, 'junction');
  }
  
  test('symlink', function (t) {
      t.plan(1);
  
      resolve('foo', { basedir: symlinkDir, preserveSymlinks: false }, function (err, res, pkg) {
          if (err) t.fail(err);
          t.equal(res, path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js'));
      });
  });
  
  test('sync symlink when preserveSymlinks = true', function (t) {
      t.plan(4);
  
      resolve('foo', { basedir: symlinkDir }, function (err, res, pkg) {
          t.ok(err, 'there is an error');
          t.notOk(res, 'no result');
  
          t.equal(err && err.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
          t.equal(
              err && err.message,
              'Cannot find module \'foo\' from \'' + symlinkDir + '\'',
              'can not find nonexistent module'
          );
      });
  });
  
  test('sync symlink', function (t) {
      var start = new Date();
      t.doesNotThrow(function () {
          t.equal(resolve.sync('foo', { basedir: symlinkDir, preserveSymlinks: false }), path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js'));
      });
      t.ok(new Date() - start < 50, 'resolve.sync timedout');
      t.end();
  });
  
  test('sync symlink when preserveSymlinks = true', function (t) {
      t.throws(function () {
          resolve.sync('foo', { basedir: symlinkDir });
      }, /Cannot find module 'foo'/);
      t.end();
  });