cd ~
git clone https://github.com/creationix/nvm.git ~/.nvm
source ~/.nvm/nvm.sh
nvm install v8.9.3
nvm alias default v8.9.3

vim ~/.bash_profile 

## 下記の設定を追記する
[[ -s ~/.nvm/nvm.sh ]] && . ~/.nvm/nvm.sh
nvm use default
npm_dir=${NVM_PATH}_modules
export NODE_PATH=$npm_dir

## 追記した内容を反映
source ~/.bash_profile

npm install -g gulp karma

npm install browser-sync gulp gulp-concat gulp-uglify-es jasmine jasmine-core karma karma-chrome-launcher karma-coverage karma-firefox-launcher karma-jasmine karma-spec-reporter --save-dev

vargulp=require("gulp");varbrowser=require("browser-sync").create();varconcat=require("gulp-concat");varuglify=require("gulp-uglify-es");varServer=require("karma").Server;/**
 * server setting
 */gulp.task("server",function(){browser.init({server:{baseDir:"./",index:"index.html"}});});/**
 * browser reload
 */gulp.task("reload",function(){browser.reload();});/**
 * output js file
 */gulp.task("output",function(){returngulp.src(["src/**/*.js"]).pipe(concat("output.js"))// 複数のJSを一個にまとめる.pipe(uglify())// 圧縮.pipe(gulp.dest("."));// 圧縮したファイルを出力});/**
 * default setting
 */gulp.task("default",["server"],function(){gulp.watch(["src/**/*.js"],["tdd"]);gulp.watch(["output.js"],["reload"]);});/**
 * test-driven development
 */gulp.task("tdd",function(done){newServer({configFile:__dirname+"/karma.conf.js",singleRun:false},done).on("run_complete",function(browsers,results){if(results.failed){thrownewError("failed");}gulp.start.apply(gulp,["output"]);}).on("error",function(err){done(err);}).start();});/**
 * Run test once and exit
 */gulp.task("test",function(done){newServer({configFile:__dirname+"/karma.conf.js",singleRun:true},done).start();});

// Karma configuration// Generated on Wed Sep 06 2017 20:07:29 GMT+0900 (JST)module.exports=function(config){config.set({// base path that will be used to resolve all patterns (eg. files, exclude)basePath:'',// frameworks to use// available frameworks: https://npmjs.org/browse/keyword/karma-adapterframeworks:['jasmine'],// list of files / patterns to load in the browserfiles:["src/**/*.js","test/**/*.js"],// list of files to excludeexclude:[],// preprocess matching files before serving them to the browser// available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessorpreprocessors:{'src/**/*.js':['coverage']},// test results reporter to use// possible values: 'dots', 'progress'// available reporters: https://npmjs.org/browse/keyword/karma-reporterreporters:['spec','coverage'],coverageReporter:{type:'html',dir:'coverage/'},// web server portport:9876,// enable / disable colors in the output (reporters and logs)colors:true,// level of logging// possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUGlogLevel:config.LOG_INFO,// enable / disable watching file and executing tests whenever any file changesautoWatch:true,// start these browsers// available browser launchers: https://npmjs.org/browse/keyword/karma-launcherbrowsers:['ChromeHeadless','FirefoxHeadless'],// Continuous Integration mode// if true, Karma captures browsers, runs the tests and exitssingleRun:false,// Concurrency level// how many browser should be started simultaneousconcurrency:Infinity});};

gulp

gulp test