update packages to latest version

node_modules/npm/test/tap/dedupe.js

@@ -0,0 +1,86 @@
+var fs = require('graceful-fs')
+var path = require('path')
+var existsSync = fs.existsSync || path.existsSync
+
+var mkdirp = require('mkdirp')
+var mr = require('npm-registry-mock')
+var rimraf = require('rimraf')
+var test = require('tap').test
+
+var common = require('../common-tap.js')
+var server
+
+var pkg = path.join(__dirname, 'dedupe')
+
+var EXEC_OPTS = { cwd: pkg }
+
+var json = {
+  author: 'Dedupe tester',
+  name: 'dedupe',
+  version: '0.0.0',
+  dependencies: {
+    optimist: '0.6.0',
+    clean: '2.1.6'
+  }
+}
+
+test('setup', function (t) {
+  t.comment('test for https://github.com/npm/npm/issues/4675')
+  setup(function () {
+    t.end()
+  })
+})
+
+test('dedupe finds the common module and moves it up one level', function (t) {
+  common.npm(
+  [
+    '--registry', common.registry,
+    'install', '.'
+  ],
+  EXEC_OPTS,
+  function (err, code) {
+    t.ifError(err, 'successfully installed directory')
+    t.equal(code, 0, 'npm install exited with code')
+    common.npm(
+      [
+        'dedupe'
+      ],
+      EXEC_OPTS,
+      function (err, code) {
+        t.ifError(err, 'successfully deduped against previous install')
+        t.notOk(code, 'npm dedupe exited with code')
+
+        t.ok(existsSync(path.join(pkg, 'node_modules', 'minimist')))
+        t.notOk(existsSync(path.join(pkg, 'node_modules', 'checker')))
+
+        t.end()
+      }
+    )
+  })
+})
+
+test('cleanup', function (t) {
+  server.close()
+  cleanup()
+
+  t.end()
+})
+
+function cleanup () {
+  rimraf.sync(pkg)
+}
+
+function setup (cb) {
+  cleanup()
+  mkdirp.sync(path.join(pkg, 'node_modules'))
+  fs.writeFileSync(
+    path.join(pkg, 'package.json'),
+    JSON.stringify(json, null, 2)
+  )
+  process.chdir(pkg)
+
+  mr({ port: common.port }, function (er, s) {
+    server = s
+    cb()
+  })
+}