text: var path = require('path')
  var fs = require('graceful-fs')
  var test = require('tap').test
  var mkdirp = require('mkdirp')
  var rimraf = require('rimraf')
  
  var common = require('../common-tap.js')
  
  var testdir = path.join(__dirname, path.basename(__filename, '.js'))
  var pkg = path.join(testdir, 'gently-rm-overeager')
  var dep = path.join(testdir, 'test-whoops')
  
  var EXEC_OPTS = { cwd: pkg }
  
  var fixture = {
    name: '@test/whoops',
    version: '1.0.0',
    scripts: {
      postinstall: 'echo \'nope\' && exit 1'
    }
  }
  
  test('setup', function (t) {
    cleanup()
    setup()
  
    return common.npm(['pack', 'file:test-whoops'], {cwd: testdir, stdio: 'inherit'}).spread((code) => {
      t.is(code, 0, 'pack')
    })
  })
  
  test('cache add', function (t) {
    common.npm(['install', '--no-save', '../test-whoops-1.0.0.tgz'], EXEC_OPTS, function (er, c) {
      t.ifError(er, "test-whoops install didn't explode")
      t.ok(c, 'test-whoops install also failed')
      fs.readdir(pkg, function (er, files) {
        t.ifError(er, 'package directory is still there')
        t.deepEqual(files, [], 'no files remain')
        t.end()
      })
    })
  })
  
  test('cleanup', function (t) {
    cleanup()
  
    t.end()
  })
  
  function cleanup () {
    rimraf.sync(testdir)
  }
  
  function setup () {
    mkdirp.sync(pkg)
    // so it doesn't try to install into npm's own node_modules
    mkdirp.sync(path.join(pkg, 'node_modules'))
    mkdirp.sync(dep)
    fs.writeFileSync(path.join(dep, 'package.json'), JSON.stringify(fixture))
  }
  