style: use es6 in tests

tests/lib/commit-to-version-test.js

@@ -1,34 +1,32 @@
-'use strict'
+const fs = require('fs')
+const exec = require('child_process').exec
 
-var fs = require('fs')
-var exec = require('child_process').exec
-
-var nixt = require('nixt')
+const nixt = require('nixt')
 
 module.exports = function (t, message, version, code, name, cwd) {
-  t.test(name, function (t) {
+  t.test(name, (t) => {
     t.plan(3)
 
     nixt()
       .cwd(cwd)
       .env('CI', true)
       .env('npm_config_registry', 'http://127.0.0.1:4873/')
-      .exec('git commit --allow-empty -m "' + message + '"')
+      .exec(`git commit --allow-empty -m "${message}"`)
       .run('npm run prepublish')
       .code(code)
       .stdout(/semantic-release.js pre\n\nDetermining new version\n/m)
-      .end(function (err) {
+      .end((err) => {
         t.error(err, 'nixt')
 
-        var pkg = JSON.parse(fs.readFileSync(cwd + '/package.json'))
+        const pkg = JSON.parse(fs.readFileSync(`${cwd}/package.json`))
         t.is(pkg.version, version, 'version')
 
         if (code === 1) {
           return t.error(null, 'no publish')
         }
 
-        exec('npm publish --ignore-scripts', {cwd: cwd}, function (err) {
-          setTimeout(function () {
+        exec('npm publish --ignore-scripts', {cwd}, (err) => {
+          setTimeout(() => {
             t.error(err, 'publish')
           }, 300)
         })

tests/lib/create-module.js

@@ -1,16 +1,14 @@
-'use strict'
+const exec = require('child_process').exec
+const join = require('path').join
 
-var exec = require('child_process').exec
-var join = require('path').join
-
-var efh = require('error-first-handler')
-var defaults = require('lodash.defaults')
-var uid = require('nano-uid')()
+const efh = require('error-first-handler')
+const defaults = require('lodash.defaults')
+const uid = require('nano-uid')()
 
 module.exports = function (input) {
-  var cb = Array.prototype.pop.call(arguments)
-  uid.generate(5, efh(cb)(function (id) {
-    var pkg = defaults((typeof input === 'object' ? input : {}), {
+  const cb = Array.prototype.pop.call(arguments)
+  uid.generate(5, efh(cb)((id) => {
+    const pkg = defaults((typeof input === 'object' ? input : {}), {
       name: id,
       version: '0.0.0',
       scripts: {
@@ -23,18 +21,18 @@ module.exports = function (input) {
     })
 
     id = pkg.name
-    var cwd = join(__dirname, '../../.tmp/modules', id)
+    const cwd = join(__dirname, '../../.tmp/modules', id)
 
     exec(
-      'mkdir ' + cwd + ' && ' +
-      'cd ' + cwd + ' && ' +
-      'git init && ' +
-      'echo \'' + JSON.stringify(pkg, null, 2) + '\' >> package.json && ' +
-      'git add . && ' +
-      'git config user.email "integration@test" && ' +
-      'git config user.name "Integration Test" && ' +
-      'git commit -m "initial"'
-    , efh(cb)(function (stdout) {
+      `mkdir ${cwd} &&
+      cd ${cwd} &&
+      git init &&
+      echo '${JSON.stringify(pkg, null, 2)}' >> package.json &&
+      git add . &&
+      git config user.email "integration@test" &&
+      git config user.name "Integration Test" &&
+      git commit -m "initial"`
+    , efh(cb)((stdout) => {
       cb(null, id, cwd)
     }))
   }))

tests/lib/custom-analyzer.js

@@ -1,9 +1,7 @@
-'use strict'
-
 module.exports = function (commits) {
-  var type = null
+  let type = null
 
-  commits.every(function (commit) {
+  commits.every((commit) => {
     if (/FOO/.test(commit.message)) {
       type = 'major'
       return false

tests/lib/custom-release-notes.js

@@ -1,5 +1,3 @@
-'use strict'
-
 module.exports = function (cb) {
   cb(null, 'custom log')
 }

tests/lib/custom-verification.js

@@ -1,5 +1,3 @@
-'use strict'
-
 module.exports = function (opts, cb) {
   cb(null, !(opts.commits.length % 2))
 }