text: 'use strict'
  var fs = require('fs')
  var path = require('path')
  
  var test = require('tap').test
  var mkdirp = require('mkdirp')
  var rimraf = require('rimraf')
  
  var common = require('../common-tap')
  
  var pkg = common.pkg
  var pathModA = path.join(pkg, 'node_modules', 'moduleA')
  var pathModB = path.join(pkg, 'node_modules', 'moduleB')
  
  var modA = {
    name: 'moduleA',
    version: '1.0.0',
    _requiredBy: [ '#USER', '/moduleB' ],
    dependencies: {
      moduleB: '1.0.0'
    }
  }
  var modB = {
    name: 'moduleB',
    version: '1.0.0',
    _requiredBy: [ '/moduleA' ],
    dependencies: {
      moduleA: '1.0.0'
    }
  }
  
  function setup () {
    mkdirp.sync(pathModA)
    fs.writeFileSync(
      path.join(pathModA, 'package.json'),
      JSON.stringify(modA, null, 2)
    )
    mkdirp.sync(pathModB)
    fs.writeFileSync(
      path.join(pathModB, 'package.json'),
      JSON.stringify(modB, null, 2)
    )
  }
  
  function cleanup () {
    rimraf.sync(pkg)
  }
  
  test('setup', function (t) {
    cleanup()
    setup()
    t.end()
  })
  
  var expected = pkg + '\n' +
                 '└─┬ moduleA@1.0.0\n' +
                 '  └─┬ moduleB@1.0.0\n' +
                 '    └── moduleA@1.0.0 deduped\n\n'
  
  test('extraneous-dep-cycle', function (t) {
    common.npm(['ls', '--unicode=true'], {cwd: pkg}, function (er, code, stdout, stderr) {
      t.ifErr(er, 'install finished successfully')
      t.is(stdout, expected, 'ls output shows module')
      t.end()
    })
  })
  
  test('cleanup', function (t) {
    cleanup()
    t.end()
  })
  