text: 'use strict'
  var path = require('path')
  var test = require('tap').test
  var Tacks = require('tacks')
  var File = Tacks.File
  var Symlink = Tacks.Symlink
  var Dir = Tacks.Dir
  var common = require('../common-tap.js')
  var mr = require('npm-registry-mock')
  var extend = Object.assign || require('util')._extend
  
  var testdir = path.join(__dirname, path.basename(__filename, '.js'))
  var bugdir = path.join(testdir, 'modules', 'bug')
  
  // This is an absolutely minimal version of the optimist included with
  // npm-registry-mock.
  var optimist = Dir({
    'package.json': File({
      dependencies: {
        minimist: '~0.0.1',
        wordwrap: '~0.0.2'
      },
      name: 'optimist',
      version: '0.6.0'
    }),
    node_modules: Dir({
      minimist: Dir({
        'package.json': File({
          _shasum: 'd7aa327bcecf518f9106ac6b8f003fa3bcea8566',
          name: 'minimist',
          version: '0.0.5'
        })
      }),
      wordwrap: Dir({
        'package.json': File({
          _shasum: 'b79669bb42ecb409f83d583cad52ca17eaa1643f',
          name: 'wordwrap',
          version: '0.0.2'
        })
      })
    })
  })
  
  var fixture = new Tacks(
    Dir({
      cache: Dir({}),
      global: Dir({
        lib: Dir({
          node_modules: Dir({
            linked1: Symlink('../../../modules/linked1/'),
            linked2: Symlink('../../../modules/linked2/')
          })
        })
      }),
      modules: Dir({
        bug: Dir({
          node_modules: Dir({
            linked1: Symlink('../../../global/lib/node_modules/linked1'),
            linked2: Symlink('../../../global/lib/node_modules/linked2')
          }),
          'package.json': File({
            name: 'bug',
            version: '10800.0.0',
            devDependencies: {
              optimist: '0.6.0',
              linked1: '^1.0.0',
              linked2: '^1.0.0'
            }
          })
        }),
        linked1: Dir({
          'package.json': File({
            name: 'linked1',
            version: '1.0.0',
            devDependencies: {
              optimist: '0.6.0'
            }
          }),
          node_modules: Dir({
            optimist: optimist
          })
        }),
        linked2: Dir({
          'package.json': File({
            name: 'linked2',
            version: '1.0.0',
            devDependencies: {
              optimist: '0.6.0',
              linked1: '^1.0.0'
            }
          }),
          node_modules: Dir({
            linked1: Symlink('../../../global/lib/node_modules/linked1'),
            optimist: optimist
          })
        })
      })
    })
  )
  
  function setup () {
    cleanup()
    fixture.create(testdir)
  }
  
  function cleanup () {
    fixture.remove(testdir)
  }
  
  var server
  test('setup', function (t) {
    setup()
    mr({port: common.port}, function (er, s) {
      t.ifError(er)
      server = s
      t.end()
    })
  })
  
  test('shared-linked', function (t) {
    var options = {
      cwd: bugdir,
      env: extend(extend({}, process.env), {
        npm_config_prefix: path.join(testdir, 'global')
      })
    }
    var config = [
      '--cache', path.join(testdir, 'cache'),
      '--registry', common.registry,
      '--unicode', 'false'
    ]
  
    common.npm(config.concat(['install', '--dry-run']), options, function (err, code, stdout, stderr) {
      if (err) throw err
      t.is(code, 0)
      var got = stdout.trim().replace(/\s+\n/g, '\n')
      var expected =
        'bug@10800.0.0 ' + bugdir + '\n' +
        '`-- optimist@0.6.0\n' +
        '  +-- minimist@0.0.5\n' +
        '  `-- wordwrap@0.0.2'
      t.is(got, expected, 'just an optimist install please')
      server.done()
      t.end()
    })
  })
  
  test('cleanup', function (t) {
    if (server) server.close()
    cleanup()
    t.end()
  })
  