add tests to raise message for regenerate of lockfile or shrinkwrap w…

…hen a dependency has an empty object value; make lint fixes

lib/install/inflate-shrinkwrap.js

@@ -54,12 +54,12 @@ function inflateShrinkwrap (topPath, tree, swdeps, opts) {
     const dependencies = sw.dependencies || {}
     const requested = realizeShrinkwrapSpecifier(name, sw, topPath)
 
-    // if (Object.keys(sw).length === 0) {
-    //   let message = `Object for dependency "${name}" is empty.\n`
-    //   message += 'Something went wrong. Regenerate the package-lock.json with "npm install".\n'
-    //   message += 'If using a shrinkwrap, regenerate with "npm shrinkwrap".'
-    //   return errorHandler(message)
-    // }
+    if (Object.keys(sw).length === 0) {
+      let message = `Object for dependency "${name}" is empty.\n`
+      message += 'Something went wrong. Regenerate the package-lock.json with "npm install".\n'
+      message += 'If using a shrinkwrap, regenerate with "npm shrinkwrap".'
+      return errorHandler(message)
+    }
 
     return inflatableChild(
       onDisk[name], name, topPath, tree, sw, requested, opts

test/tap/lockfile-empty-dep-value.js

@@ -0,0 +1,68 @@
+'use strict'
+
+const common = require('../common-tap.js')
+const path = require('path')
+const test = require('tap').test
+
+const Tacks = require('tacks')
+const File = Tacks.File
+const Dir = Tacks.Dir
+
+const basedir = common.pkg
+const testdir = path.join(basedir, 'testdir')
+
+const fixture = new Tacks(Dir({
+  cache: Dir(),
+  global: Dir(),
+  tmp: Dir(),
+  testdir: Dir({
+    'package-lock.json': File({
+      name: 'http-locks',
+      version: '1.0.0',
+      lockfileVersion: 1,
+      requires: true,
+      dependencies: {
+        minimist: {}
+      }
+    }),
+    'package.json': File({
+      name: 'http-locks',
+      version: '1.0.0',
+      dependencies: {
+        minimist: common.registry + '/minimist/-/minimist-0.0.5.tgz'
+      }
+    })
+  })
+}))
+
+function setup () {
+  cleanup()
+  fixture.create(basedir)
+}
+
+function cleanup () {
+  fixture.remove(basedir)
+}
+
+test('setup', function (t) {
+  setup()
+  t.done()
+})
+
+test('raises error to regenerate the lock file', function (t) {
+  common.npm(['install'], {cwd: testdir}, function (err, code, stdout, stderr) {
+    if (err) throw err
+    t.match(
+      stderr,
+      'npm ERR! Something went wrong. Regenerate the package-lock.json with "npm install".',
+      'returns message to regenerate package-lock'
+    )
+
+    t.done()
+  })
+})
+
+test('cleanup', function (t) {
+  cleanup()
+  t.done()
+})

test/tap/shrinkwrap-empty-dep-value.js

@@ -0,0 +1,66 @@
+'use strict'
+
+const common = require('../common-tap.js')
+const path = require('path')
+const test = require('tap').test
+
+const Tacks = require('tacks')
+const File = Tacks.File
+const Dir = Tacks.Dir
+
+const basedir = common.pkg
+const testdir = path.join(basedir, 'testdir')
+
+const fixture = new Tacks(Dir({
+  cache: Dir(),
+  global: Dir(),
+  tmp: Dir(),
+  testdir: Dir({
+    'npm-shrinkwrap.json': File({
+      name: 'http-locks',
+      version: '0.0.0',
+      dependencies: {
+        minimist: {}
+      }
+    }),
+    'package.json': File({
+      name: 'http-locks',
+      version: '1.0.0',
+      dependencies: {
+        minimist: common.registry + '/minimist/-/minimist-0.0.5.tgz'
+      }
+    })
+  })
+}))
+
+function setup () {
+  cleanup()
+  fixture.create(basedir)
+}
+
+function cleanup () {
+  fixture.remove(basedir)
+}
+
+test('setup', function (t) {
+  setup()
+  t.done()
+})
+
+test('raises error to regenerate the shrinkwrap', function (t) {
+  common.npm(['install'], {cwd: testdir}, function (err, code, stdout, stderr) {
+    if (err) throw err
+    t.match(
+      stderr,
+      'npm ERR! If using a shrinkwrap, regenerate with "npm shrinkwrap".',
+      'returns message to regenerate shrinkwrap'
+    )
+
+    t.done()
+  })
+})
+
+test('cleanup', function (t) {
+  cleanup()
+  t.done()
+})