Karma 오류 : cannot find module 'typescript'

28 02 2019 03:11:04.528:ERROR [plugin]: Error during loading "D:\workspace\HyperCube\node_modules/karma-typescript" plugin:

  Cannot find module 'typescript'

28 02 2019 03:11:04.649:ERROR [preprocess]: Can not load "karma-typescript", it is not registered!

  Perhaps you are missing some plugin?

28 02 2019 03:11:04.654:ERROR [karma-server]: Server start failed on port 9876: Error: No provider for "framework:karma-typescript"! (Resolving: framework:karma-typescript)

npm ERR! Test failed.  See above for more details.

Typescript 를 테스트하기 위해서, karma 와 mocha 를 사용하는 환경을 구성하고 테스트를 실행해보았는데 위와 같은 에러를 받았다. 

나의 경우에 해결법은

karma-typescript 모듈을 global 하게 설치함으로써 solve 되었다.

npm install -g karma-typescript

karma.config.js

// Karma configuration

// Generated on Tue Feb 26 2019 21:17:12 GMT+0900 (GMT+09:00)

module.exports = function(config) {

config.set({

// base path that will be used to resolve all patterns (eg. files, exclude)

basePath: '',

plugins : [

'karma-typescript'

],

// frameworks to use

// available frameworks: https://npmjs.org/browse/keyword/karma-adapter

frameworks: ['mocha', 'requirejs','chai','karma-typescript'],

// list of files / patterns to load in the browser

files: [

'test-main.js',

{pattern : 'test/**/*.ts',included:true},

{pattern : 'test/*.ts',included:false}

],

karmaTypescriptConfig : {

compilerOptions : {

module : "commonjs"

},

tsconfig : "./tsconfig.json",

},

// list of files / patterns to exclude

exclude: [

],

// preprocess matching files before serving them to the browser

// available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor

preprocessors: {

"**/*.ts":"karma-typescript"

},

// test results reporter to use

// possible values: 'dots', 'progress'

// available reporters: https://npmjs.org/browse/keyword/karma-reporter

reporters: ['progress','karma-typescript'],

// web server port

port: 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_DEBUG

logLevel: config.LOG_INFO,

// enable / disable watching file and executing tests whenever any file changes

autoWatch: true,

// start these browsers

// available browser launchers: https://npmjs.org/browse/keyword/karma-launcher

browsers: ['PhantomJS'],

// Continuous Integration mode

// if true, Karma captures browsers, runs the tests and exits

singleRun: false,

// Concurrency level

// how many browser should be started simultaneous

concurrency: Infinity

})

}