3rd Party library testing angular 2 webpack - unit-testing

I am working on a project using angular 2 and a 3rd party library for making charts (AmCharts). I figured out how to use it along angular 2, but I'm getting a error when I try to make a unit test for the chart component:
Error: Error in ./ChartsComponent class ChartsComponent - inline template:1:2 caused by: AmCharts is not defined
ReferenceError: AmCharts is not defined
This project has been created using angular-cli and we've recently upgraded angular to version 2.2.1.
Here is angular-cli.json and karma.conf.js:
angular-cli.json
{
"project": {
"version": "1.0.0-beta.21",
"name": "cli-crud-webpack"
},
"apps": [
{
"root": "src",
"outDir": "dist",
"assets": [
"assets",
"favicon.ico"
],
"index": "index.html",
"main": "main.ts",
"test": "test.ts",
"tsconfig": "tsconfig.json",
"prefix": "gov",
"mobile": false,
"styles": [
"styles.scss",
"../public/assets/css/agate.css",
"../public/assets/css/bootstrap.min.css"
],
"scripts": [
"../public/assets/js/highlight.pack.js",
"../node_modules/amcharts3/amcharts/amcharts.js",
"../node_modules/amcharts3/amcharts/xy.js",
"../node_modules/amcharts3/amcharts/gauge.js",
"../node_modules/amcharts3/amcharts/serial.js",
"../node_modules/amcharts3/amcharts/pie.js",
"../node_modules/amcharts3/amcharts/themes/light.js",
"../node_modules/amcharts3/amcharts/themes/dark.js",
"../node_modules/amcharts3/amcharts/themes/black.js",
"../node_modules/amcharts3/amcharts/plugins/responsive/responsive.min.js"
],
"environments": {
"source": "environments/environment.ts",
"dev": "environments/environment.ts",
"prod": "environments/environment.prod.ts"
}
}
],
"addons": [],
"packages": [],
"e2e": {
"protractor": {
"config": "./protractor.conf.js"
}
},
"test": {
"karma": {
"config": "./karma.conf.js"
}
},
"defaults": {
"styleExt": "scss",
"prefixInterfaces": false,
"inline": {
"style": false,
"template": false
},
"spec": {
"class": false,
"component": true,
"directive": true,
"module": false,
"pipe": true,
"service": true
}
}
}
karma.conf.js
module.exports = function (config) {
config.set({
basePath: '',
frameworks: ['jasmine', 'angular-cli'],
plugins: [
require('karma-jasmine'),
require('karma-chrome-launcher'),
require('karma-remap-istanbul'),
require('angular-cli/plugins/karma')
],
files: [
{ pattern: './src/test.ts', watched: false }
],
preprocessors: {
'./src/test.ts': ['angular-cli']
},
mime: {
'text/x-typescript': ['ts','tsx']
},
remapIstanbulReporter: {
reports: {
html: 'coverage',
lcovonly: './coverage/coverage.lcov'
}
},
angularCli: {
config: './angular-cli.json',
environment: 'dev'
},
reporters: config.angularCli && config.angularCli.codeCoverage
? ['progress', 'karma-remap-istanbul']
: ['progress'],
port: 9876,
colors: true,
logLevel: config.LOG_INFO,
autoWatch: true,
browsers: ['Chrome'],
singleRun: false
});
};

I just found out I have to declare amcharts in karma configuration file, like this:
module.exports = function (config) {
config.set({
basePath: '',
frameworks: ['jasmine', 'angular-cli'],
plugins: [
require('karma-jasmine'),
require('karma-chrome-launcher'),
require('karma-remap-istanbul'),
require('angular-cli/plugins/karma')
],
files: [
{ pattern: './src/test.ts', watched: false },
"./public/assets/js/highlight.pack.js",
"./node_modules/amcharts3/amcharts/amcharts.js",
"./node_modules/amcharts3/amcharts/xy.js",
"./node_modules/amcharts3/amcharts/gauge.js",
"./node_modules/amcharts3/amcharts/serial.js",
"./node_modules/amcharts3/amcharts/pie.js",
"./node_modules/amcharts3/amcharts/themes/light.js",
"./node_modules/amcharts3/amcharts/themes/dark.js",
"./node_modules/amcharts3/amcharts/themes/black.js",
"./node_modules/amcharts3/amcharts/plugins/responsive/responsive.min.js"
],
preprocessors: {
'./src/test.ts': ['angular-cli']
},
mime: {
'text/x-typescript': ['ts','tsx']
},
remapIstanbulReporter: {
reports: {
html: 'coverage',
lcovonly: './coverage/coverage.lcov'
}
},
angularCli: {
config: './angular-cli.json',
environment: 'dev'
},
reporters: config.angularCli && config.angularCli.codeCoverage
? ['progress', 'karma-remap-istanbul']
: ['progress'],
port: 9876,
colors: true,
logLevel: config.LOG_INFO,
autoWatch: true,
browsers: ['Chrome'],
singleRun: false
});
};

Related

Angular v12 - Unit Test - [ERROR] No specs found

After developing my Angular application I would like to run unit tests with Karma and Jasmine.
I haven't written any unit-tests yet, but trying to run the default ones, with the 'ng test' command, I notice that the .spec files are not recognized by Karma-Jasmine.
Inside the browser, Karma gives the following message: "Incomplete, no specs found", in the terminal "Executed 0 of 0 SUCCESS".
I tried to generate a new application with the Angular CLI and to run the unit test. And it works.
Within my application, the Karma configuration files have not been touched, they are the same as those of the test application, and I don't understand why the .spec files are not recognized.
angular.json
{
"$schema": "./node_modules/#angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"dibfibo": {
"projectType": "application",
"schematics": {
"#schematics/angular:component": {
"style": "scss"
},
"#schematics/angular:application": {
"strict": true
}
},
"root": "",
"sourceRoot": "src",
"prefix": "app",
"architect": {
"build": {
"builder": "#angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/dibfibo",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.app.json",
"inlineStyleLanguage": "scss",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/styles.scss"
],
"scripts": []
},
"configurations": {
"production": {
"budgets": [
{
"type": "initial",
"maximumWarning": "500kb",
"maximumError": "1mb"
},
{
"type": "anyComponentStyle",
"maximumWarning": "2kb",
"maximumError": "4kb"
}
],
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"outputHashing": "all"
},
"development": {
"buildOptimizer": false,
"optimization": false,
"vendorChunk": true,
"extractLicenses": false,
"sourceMap": true,
"namedChunks": true
}
},
"defaultConfiguration": "production"
},
"serve": {
"builder": "#angular-devkit/build-angular:dev-server",
"configurations": {
"production": {
"browserTarget": "dibfibo:build:production"
},
"development": {
"browserTarget": "dibfibo:build:development"
}
},
"defaultConfiguration": "development"
},
"extract-i18n": {
"builder": "#angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "dibfibo:build"
}
},
"test": {
"builder": "#angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.spec.json",
"karmaConfig": "karma.conf.js",
"inlineStyleLanguage": "scss",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/styles.scss"
],
"scripts": []
}
}
}
}
},
"defaultProject": "dibfibo"
}
karma.conf.js
// Karma configuration file, see link for more information
// https://karma-runner.github.io/1.0/config/configuration-file.html
module.exports = function (config) {
config.set({
basePath: '',
frameworks: ['jasmine', '#angular-devkit/build-angular'],
plugins: [
require('karma-jasmine'),
require('karma-chrome-launcher'),
require('karma-jasmine-html-reporter'),
require('karma-coverage'),
require('#angular-devkit/build-angular/plugins/karma')
],
client: {
jasmine: {
// you can add configuration options for Jasmine here
// the possible options are listed at https://jasmine.github.io/api/edge/Configuration.html
// for example, you can disable the random execution with `random: false`
// or set a specific seed with `seed: 4321`
},
clearContext: false // leave Jasmine Spec Runner output visible in browser
},
jasmineHtmlReporter: {
suppressAll: true // removes the duplicated traces
},
coverageReporter: {
dir: require('path').join(__dirname, './coverage/dibfibo'),
subdir: '.',
reporters: [
{ type: 'html' },
{ type: 'text-summary' }
]
},
reporters: ['progress', 'kjhtml'],
port: 9876,
colors: true,
logLevel: config.LOG_INFO,
autoWatch: true,
browsers: ['Chrome'],
singleRun: false,
restartOnFileChange: true
});
};

Nuxt Fatal Error Error: [VuetifyLoaderPlugin Error] No matching rule for vue-loader found

After running npm run build, I get an error: Error: [VuetifyLoaderPlugin Error] No matching rule for vue-loader found.Make sure there is at least one root-level rule that uses vue-loader and VuetifyLoaderPlugin is applied after VueLoaderPlugin.
package.json
{
"name": "client",
"version": "1.0.0",
"private": true,
"scripts": {
"dev": "nuxt",
"build": "nuxt build",
"start": "nuxt start",
"generate": "nuxt generate"
},
"dependencies": {
"#nuxtjs/axios": "^5.13.6",
"core-js": "^3.15.1",
"dotenv": "^10.0.0",
"nuxt": "^2.15.7",
"nuxt-i18n": "^6.27.3",
"nuxt-mail": "^3.0.10",
"vuetify": "^2.5.5"
},
"devDependencies": {
"#fortawesome/fontawesome-free": "^5.15.3",
"#fortawesome/fontawesome-svg-core": "^1.2.35",
"#fortawesome/free-brands-svg-icons": "^5.15.3",
"#fortawesome/free-solid-svg-icons": "^5.15.3",
"#fortawesome/vue-fontawesome": "^2.0.2",
"#mdi/font": "^5.9.55",
"#nuxtjs/fontawesome": "^1.1.2",
"#nuxtjs/vuetify": "^1.12.1",
"eslint-config-prettier": "^8.3.0",
"font-awesome": "^4.7.0",
"material-design-icons-iconfont": "^6.1.0",
"prettier": "^2.3.2"
}
}
Here is my config nuxt.config.js file:
import colors from 'vuetify/es5/util/colors'
import i18n from './config/i18n'
export default {
// Global page headers: https://go.nuxtjs.dev/config-head
head: {
titleTemplate: '%s - client',
title: 'client',
htmlAttrs: {
lang: 'en'
},
meta: [
{ charset: 'utf-8' },
{ name: 'viewport', content: 'width=device-width, initial-scale=1' },
{ hid: 'description', name: 'description', content: '' },
{ name: 'format-detection', content: 'telephone=no' }
],
link: [
{ rel: 'icon', type: 'image/x-icon', href: '/favicon.ico' }
]
},
// Global CSS: https://go.nuxtjs.dev/config-css
css: [
],
// Plugins to run before rendering page: https://go.nuxtjs.dev/config-plugins
plugins: [
],
// Auto import components: https://go.nuxtjs.dev/config-components
components: true,
// Modules for dev and build (recommended): https://go.nuxtjs.dev/config-modules
buildModules: [
[
'nuxt-i18n',
{
vueI18nLoader: true,
defaultLocale: 'hr',
locales: [
{
code: 'en',
name: 'Eng'
},
{
code: 'hr',
name: 'Hrv'
}
],
vueI18n: i18n
}
],
'#nuxtjs/vuetify',
'#nuxtjs/fontawesome'
],
fontawesome: {
icons: {
solid: true,
brands: true
}
},
// Modules: https://go.nuxtjs.dev/config-modules
modules: [
// https://go.nuxtjs.dev/axios
'#nuxtjs/axios',
'#nuxtjs/vuetify',
'nuxt-i18n',
['nuxt-mail', {
message: {
to: 'mislav0508#hotmail.com',
},
smtp: {
host: "smtp-mail.outlook.com",
port: 587,
secure: false, // true for 465, false for other ports
auth: {
user: "mislav0508#hotmail.com",
pass: process.env.EMAIL_PASS,
},
tls: {
rejectUnauthorized:false
}
},
}],
],
// Axios module configuration: https://go.nuxtjs.dev/config-axios
axios: {},
i18n: {
i18n: {
locales: ['hr', 'en'],
defaultLocale: 'hr',
vueI18n: {
fallbackLocale: 'hr',
messages: {
hr: {
welcome: 'Dobrodošli'
},
en: {
welcome: 'Welcome'
}
}
}
}
},
// Vuetify module configuration: https://go.nuxtjs.dev/config-vuetify
vuetify: {
customVariables: ['~/assets/variables.scss'],
theme: {
dark: false,
themes: {
dark: {
primary: colors.blue.darken2,
accent: colors.grey.darken3,
secondary: colors.amber.darken3,
info: colors.teal.lighten1,
warning: colors.amber.base,
error: colors.deepOrange.accent4,
success: colors.green.accent3
}
}
}
},
// Build Configuration: https://go.nuxtjs.dev/config-build
build: {
}
}
I've tried installing vuetify-loader and vue-loader and adding them to the nuxt.config.js file. However after that I get another error:
TypeError: loaderContext.emitError is not a function
Please help.

Unable to generate code coverage report for all ts files using Karma, Webpack, remap coverage

I am able to set up Unit test framework using Karma, Webpack and karma-remap-coverage for code coverage. But I don't understand why coverage is not coming for all the files(components, directives, services). I have around, supposed 100 files, but it's generating coverage report only for 40-50 files.
Here I am sharing my configuration files:
Karma.conf.js
var webpackConfig = require('./webpack/webpack.test');
var path = require('path');
module.exports = function (config) {
var _config = {
basePath: '',
frameworks: ['jasmine'],
files: [
{ pattern: './webpack/karma-test-shim.js', watched: false },
{ pattern: './node_modules/#angular/material/prebuilt-themes/indigo-pink.css', included: true, watched: false }
],
preprocessors: {
'./webpack/karma-test-shim.js': ['webpack', 'sourcemap'],
},
webpack: webpackConfig,
webpackMiddleware: {
stats: 'errors-only'
},
webpackServer: {
noInfo: true
},
coverageReporter: {
includeAllSources: true,
type: 'html',
dir: 'coverage/'
},
// coverageIstanbulReporter: {
// reports: ['html', 'lcovonly'],
// fixWebpackSourcePaths: true
// },
// reporters: ['progress', 'coverage-istanbul'],
coverageReporter: {
type: 'in-memory'
},
remapCoverageReporter: {
'text-summary': null,
json: './coverage/coverage.json',
html: './coverage/html',
cobertura: './coverage/cobertura.xml'
},
reporters: ['progress', 'coverage', 'remap-coverage'],
port: 9876,
colors: true,
logLevel: config.LOG_INFO,
autoWatch: false,
browsers: ['Chrome'],
singleRun: true,
browserNoActivityTimeout: 20000
};
config.set(_config);
};
Webpack.test.js
var webpack = require('webpack');
var helpers = require('./helpers');
var path = require('path');
module.exports = {
devtool: 'inline-source-map',
resolve: {
extensions: ['.ts', '.js']
},
module: {
rules: [
{
test: /\.ts$/,
loaders: [
{
loader: 'awesome-typescript-loader?sourceMap=false,inlineSourceMap=true',
options: { configFileName: 'tsconfig.json' }
}, 'angular2-template-loader'
]
},
{
test: /\.html$/,
loader: 'html-loader'
},
{
test: /\.(png|jpe?g|gif|svg|woff|woff2|ttf|eot|ico)$/,
loader: 'null-loader'
},
{
test: /\.css$/,
exclude: helpers.root('app'),
loader: 'null-loader'
},
{
test: /\.css$/,
include: helpers.root('app'),
loader: 'raw-loader'
},
{
enforce: 'post',
test: /\.ts$/,
loader: 'istanbul-instrumenter-loader',
include: helpers.root('app'),
exclude: /(node_modules|\.spec\.ts)/
}
]
}
}
Karma-test-shim.js
Error.stackTraceLimit = Infinity;
require('core-js/es6');
require('core-js/es7/reflect');
require('zone.js/dist/zone');
require('zone.js/dist/long-stack-trace-zone');
require('zone.js/dist/proxy');
require('zone.js/dist/sync-test');
require('zone.js/dist/jasmine-patch');
require('zone.js/dist/async-test');
require('zone.js/dist/fake-async-test');
var appContext = require.context('../testing/specs', true, /\.spec\.ts/);
appContext.keys().forEach(appContext);
var testing = require('#angular/core/testing');
var browser = require('#angular/platform-browser-dynamic/testing');
testing.TestBed.initTestEnvironment(browser.BrowserDynamicTestingModule, browser.platformBrowserDynamicTesting());
NPM dependencies used:
"karma": "^1.2.0",
"karma-chrome-launcher": "^2.0.0",
"karma-cli": "~1.0.1",
"karma-coverage": "^1.1.1",
"istanbul-instrumenter-loader": "2.0.0",
"karma-html-reporter": "^0.2.7",
"karma-jasmine": "^1.0.2",
"karma-jasmine-html-reporter": "^0.2.2",
"karma-mocha-reporter": "^2.2.3",
"karma-remap-coverage": "^0.1.2",
"karma-sourcemap-loader": "^0.3.7",
"karma-webpack": "^2.0.1",
Any help is really appreciated!

Angular2 2.4.3 with Angular-CLI 1.0.0-beta.25.5, after upgrade unit tests with karma/jasmine stops working

Recently I updated Angular from 2.0.3 to 2.4.3 and Angular-CLI from 1.0.0-beta.21 to 1.0.0-beta.25.5
After upgrade my unit tests stop working. Below you can find test file, configuration files and test results. Do you have any idea what can be wrong with it? Thanks
test result
$ npm test -- --watch=false
> portal#0.0.0 test /Users/artur/Sites/portal
> ng test "--watch=false"
19 01 2017 08:22:52.703:WARN [karma]: Port 9879 in use
19 01 2017 08:22:52.705:INFO [karma]: Karma v1.4.0 server started at http://0.0.0.0:9880/
19 01 2017 08:22:52.705:INFO [launcher]: Launching browser Chrome with unlimited concurrency
19 01 2017 08:22:52.726:INFO [launcher]: Starting browser Chrome
19 01 2017 08:22:55.619:INFO [Chrome 55.0.2883 (Mac OS X 10.12.2)]: Connected on socket XIi2HWa92rY4uvNvAAAA with id 35735618
Chrome 55.0.2883 (Mac OS X 10.12.2): Executed 0 of 0 ERROR (0.004 secs / 0 secs)
npm ERR! Test failed. See above for more details.
banner.component.spec.ts
/* tslint:disable:no-unused-variable */
import { Component } from '#angular/core';
import { TestBed, async } from '#angular/core/testing';
import { BannerComponent } from './banner.component';
import { RouterTestingModule } from '#angular/router/testing';
#Component({
template: ''
})
class DummyComponent {}
describe('Component: Banner', () => {
beforeEach(() => {
TestBed.configureTestingModule({
declarations: [
DummyComponent,
BannerComponent
],
imports: [
RouterTestingModule.withRoutes([
{ path: '', component: DummyComponent }
])
],
providers: []
});
});
it('should create an instance', async(() => {
let fixture = TestBed.createComponent(BannerComponent);
let component = fixture.debugElement.componentInstance;
expect(component).toBeTruthy();
}));
});
banner.component.ts
import { Component, OnInit } from '#angular/core';
#Component({
selector: 'app-banner',
templateUrl: './banner.component.html',
styleUrls: ['./banner.component.scss'],
styles: [".banner >>> lp-svg svg path { fill: #fcfcfc; }"]
})
export class BannerComponent {}
package.json
{
"name": "portal",
"version": "0.0.0",
"license": "MIT",
"angular-cli": {},
"scripts": {
"ngc": "./node_modules/.bin/ngc -p ./src",
"start": "./node_modules/.bin/ng serve --host 0.0.0.0 --port 4000",
"build.dev": "./node_modules/.bin/ng build --bh /portal/",
"build.dev.watch": "./node_modules/.bin/ng build --bh /portal/ --watch true",
"build.prod": "./node_modules/.bin/ng build --bh /portal/ --prod --env=prod",
"build.prod.watch": "./node_modules/.bin/ng build --bh /portal/ --prod --env=prod",
"serve.prod": "node lp-server.js",
"lint": "tslint \"src/**/*.ts\"",
"test": "./node_modules/.bin/ng test",
"e2e": "./protractor.sh",
"copy.support-page": "./node_modules/.bin/copyfiles -u 1 ./src/support.html ./dist"
},
"private": true,
"dependencies": {
"#angular/common": "^2.4.3",
"#angular/compiler": "^2.4.3",
"#angular/compiler-cli": "^2.4.3",
"#angular/core": "^2.4.3",
"#angular/forms": "^2.4.3",
"#angular/http": "^2.4.3",
"#angular/platform-browser": "^2.4.3",
"#angular/platform-browser-dynamic": "^2.4.3",
"#angular/platform-server": "^2.4.3",
"#angular/router": "^3.4.3",
"copyfiles": "1.0.0",
"core-js": "2.4.1",
"jquery": "2.2.3",
"perfect-scrollbar": "~0.6.10",
"rxjs": "^5.0.3",
"ts-helpers": "1.1.1",
"typescript": "2.0.2",
"underscore": "1.8.3",
"zone.js": "0.6.23"
},
"devDependencies": {
"#types/jasmine": "^2.5.41",
"angular-cli": "^1.0.0-beta.25.5",
"codelyzer": "^2.0.0-beta.4",
"jasmine-core": "^2.5.2",
"jasmine-spec-reporter": "^3.2.0",
"karma": "^1.4.0",
"karma-chrome-launcher": "^2.0.0",
"karma-cli": "^1.0.1",
"karma-jasmine": "^1.1.0",
"karma-mocha-reporter": "^2.2.1",
"karma-phantomjs-launcher": "^1.0.2",
"karma-remap-istanbul": "^0.4.0",
"live-server": "1.1.0",
"protractor": "^5.0.0",
"ts-node": "1.2.1",
"tslint": "3.13.0"
}
}
karma.conf.js
// Karma configuration file, see link for more information
// https://karma-runner.github.io/0.13/config/configuration-file.html
module.exports = function (config) {
config.set({
basePath: '',
frameworks: ['jasmine', 'angular-cli'],
plugins: [
require('karma-jasmine'),
require('karma-chrome-launcher'),
require('karma-phantomjs-launcher'),
require('karma-remap-istanbul'),
require('angular-cli/plugins/karma'),
require('karma-mocha-reporter')
],
files: [
{ pattern: 'src/test.ts', watched: false },
{ pattern: 'src/assets/img/*', watched: false, included: false, served: true, nocache: false }
],
proxies: {
'/portal/assets/img/': '/base/src/assets/img/'
},
preprocessors: {
'./src/test.ts': ['angular-cli']
},
remapIstanbulReporter: {
reports: {
html: 'coverage',
lcovonly: './coverage/coverage.lcov'
}
},
angularCli: {
config: './angular-cli.json',
environment: 'dev'
},
reporters: config.angularCli && config.angularCli.codeCoverage
? ['progress', 'karma-remap-istanbul']
: ['progress'],
port: 9879,
colors: true,
logLevel: config.LOG_INFO,
autoWatch: true,
browsers: ['Chrome'],
singleRun: false,
browserConsoleLogOptions: {
level: 'debug',
format: '%b %T: %m',
terminal: true
},
customLaunchers: {
'PhantomJS_custom': {
base: 'PhantomJS',
options: {
windowName: 'my-window',
settings: {
webSecurityEnabled: false
},
},
flags: ['--load-images=true'],
debug: true
}
},
phantomjsLauncher: {
// Have phantomjs exit if a ResourceError is encountered (useful if karma exits without killing phantom)
exitOnResourceError: true
}
});
};
angular-cli.json
{
"project": {
"version": "1.0.0-beta.25.5",
"name": "ui-lender-portal-v2"
},
"apps": [
{
"root": "src",
"outDir": "dist",
"assets": ["assets"],
"index": "index.html",
"main": "main.ts",
"test": "test.ts",
"tsconfig": "tsconfig.json",
"prefix": "lp",
"mobile": false,
"styles": [
"styles.scss",
"../node_modules/perfect-scrollbar/dist/css/perfect-scrollbar.min.css"
],
"scripts": [
"../node_modules/underscore/underscore.js",
"../node_modules/jquery/dist/jquery.min.js",
"../node_modules/perfect-scrollbar/dist/js/perfect-scrollbar.js",
"./libs/jquery-ui/jquery-ui.min.js",
"./libs/jquery-mobile/jquery.mobile.custom.min.js",
"./libs/slick/slick.js"
],
"environments": {
"source": "environments/environment.ts",
"dev": "environments/environment.ts",
"prod": "environments/environment.prod.ts"
}
}
],
"addons": [],
"packages": [],
"e2e": {
"protractor": {
"config": "./protractor.conf.js"
}
},
"test": {
"karma": {
"config": "./karma.conf.js"
}
},
"defaults": {
"styleExt": "scss",
"prefixInterfaces": false,
"inline": {
"style": false,
"template": false
},
"spec": {
"class": false,
"component": true,
"directive": true,
"module": false,
"pipe": true,
"service": true
}
}
}
Finally I created new project with Angular-CLI and copied source files from my project. This helps.

Setting up unit test code coverage on Angular 2.1.0 Webpack

I am Following this tutorial on setting up a Webpack Angular 2 project.
I can run unit tests just fine with the setup, but I have tried adding code coverage to the project using karma-coverage and remap-istanbul, but it seems that karma-coverage is not outputting anything in the coverage-final.json.
What do I need to add to the karma config to get the test config to work?
Here is my current config:
var webpackConfig = require('./webpack.test');
module.exports = function (config) {
var _config = {
basePath: '',
frameworks: ['jasmine'],
files: [
{pattern: './config/karma-test-shim.js', watched: false}
],
preprocessors: {
'./config/karma-test-shim.js': ['webpack', 'sourcemap']
},
webpack: webpackConfig,
webpackMiddleware: {
stats: 'errors-only'
},
webpackServer: {
noInfo: true
},
reporters: ['progress'],
port: 9876,
colors: true,
logLevel: config.LOG_INFO,
autoWatch: false,
browsers: ['PhantomJS'],
singleRun: true
};
config.set(_config);
};
You have two options, the easiest way is to use angular-cli. The hardest way is based on that tutorial make the changes needed for code coverage, which are a lot. One of the main things that you will be forced is to change to Webpack 2, I wasn't able to make awesome-typescript-loader work with karma using Webpack 1. The code coverage was always empty. I got some inspiration from angular-cli and from angular2-webpack-starter here are the changes:
karma.conf.js: add this:
remapIstanbulReporter: {
reports: {
html: 'coverage',
lcovonly: './coverage/coverage.lcov'
}
},
And change this:
reporters: ['progress'],
to this:
reporters: ['progress', 'karma-remap-istanbul'],
There are a lot of changes to the webpack configs so I'm just going to paste the entire config files, it's easier:
webpack.common.js:
var webpack = require('webpack');
var HtmlWebpackPlugin = require('html-webpack-plugin');
var ExtractTextPlugin = require('extract-text-webpack-plugin');
var helpers = require('./helpers');
module.exports = {
entry: {
'polyfills': './src/polyfills.ts',
'vendor': './src/vendor.ts',
'app': './src/main.ts'
},
resolve: {
extensions: ['.ts', '.js']
},
module: {
rules: [
{
test: /\.ts$/,
loaders: ['awesome-typescript-loader', 'angular2-template-loader'],
exclude: [/\.(spec|e2e)\.ts$/]
},
{
test: /\.html$/,
loader: 'html'
},
{
test: /\.(png|jpe?g|gif|svg|woff|woff2|ttf|eot|ico)$/,
loader: 'file?name=assets/[name].[hash].[ext]'
},
{
test: /\.css$/,
exclude: helpers.root('src', 'app'),
loader: ExtractTextPlugin.extract({
fallbackLoader: 'style-loader',
loader: 'css-loader'
})
},
{
test: /\.css$/,
include: helpers.root('src', 'app'),
loader: 'raw'
}
]
},
plugins: [
new webpack.optimize.CommonsChunkPlugin({
// Optimizing ensures loading order in index.html
name: ['polyfills', 'vendor', 'app'].reverse()
}),
new webpack.optimize.CommonsChunkPlugin({
minChunks: Infinity,
name: 'inline',
filename: 'inline.js',
sourceMapFilename: 'inline.map'
}),
new HtmlWebpackPlugin({
template: 'src/index.html'
})
]
};
webpack.dev.js
var webpack = require('webpack');
var webpackMerge = require('webpack-merge');
var ExtractTextPlugin = require('extract-text-webpack-plugin');
var commonConfig = require('./webpack.common.js');
var helpers = require('./helpers');
module.exports = webpackMerge(commonConfig, {
devtool: 'cheap-module-eval-source-map',
output: {
path: helpers.root('dist'),
filename: '[name].js',
chunkFilename: '[id].chunk.js',
sourceMapFilename: '[name].map',
library: 'ac_[name]',
libraryTarget: 'var'
},
plugins: [
new webpack.LoaderOptionsPlugin({
options: {
tslint: {
emitErrors: false,
failOnHint: false,
resourcePath: 'src'
},
}
}),
new ExtractTextPlugin('[name].css')
],
devServer: {
historyApiFallback: true,
stats: 'minimal',
watchOptions: {
aggregateTimeout: 300,
poll: 1000
},
outputPath: helpers.root('dist')
},
node: {
global: true,
crypto: 'empty',
process: true,
module: false,
clearImmediate: false,
setImmediate: false
}
});
webpack.prod.js:
var webpack = require('webpack');
var webpackMerge = require('webpack-merge');
var WebpackMd5Hash = require('webpack-md5-hash');
var ExtractTextPlugin = require('extract-text-webpack-plugin');
var commonConfig = require('./webpack.common.js');
var helpers = require('./helpers');
const ENV = process.env.NODE_ENV = process.env.ENV = 'production';
module.exports = webpackMerge(commonConfig, {
devtool: 'source-map',
output: {
path: helpers.root('dist'),
filename: '[name].[chunkhash].js',
sourceMapFilename: '[name].[chunkhash].bundle.map',
chunkFilename: '[id].[chunkhash].chunk.js'
},
plugins: [
new WebpackMd5Hash(),
new webpack.NoErrorsPlugin(),
new webpack.optimize.UglifyJsPlugin({
mangle: { screw_ie8: true },
compress: { screw_ie8: true }
}),
new ExtractTextPlugin('[name].[hash].css'),
new webpack.DefinePlugin({
'process.env': {
'ENV': JSON.stringify(ENV)
}
}),
new webpack.LoaderOptionsPlugin({
options: {
tslint: {
emitErrors: true,
failOnHint: true,
resourcePath: helpers.root('src')
},
htmlLoader: {
minimize: true,
removeAttributeQuotes: false,
caseSensitive: true,
customAttrSurround: [
[/#/, /(?:)/],
[/\*/, /(?:)/],
[/\[?\(?/, /(?:)/]
],
customAttrAssign: [/\)?\]?=/]
}
}
}),
new webpack.ContextReplacementPlugin(
/angular(\\|\/)core(\\|\/)(esm(\\|\/)src|src)(\\|\/)linker/,
helpers.root('src')
)
],
node: {
fs: 'empty',
global: true,
crypto: 'empty',
process: true,
module: false,
clearImmediate: false,
setImmediate: false
}
});
webpack.test.js:
var helpers = require('./helpers');
var path = require('path');
var atl = require('awesome-typescript-loader');
var webpack = require('webpack');
module.exports = {
devtool: 'inline-source-map',
context: path.resolve(__dirname, './'),
resolve: {
extensions: ['.ts', '.js'],
plugins: [
new atl.TsConfigPathsPlugin({
tsconfig: helpers.root('tsconfig.json')
})
]
},
entry: {
test: helpers.root('config/karma-test-shim')
},
output: {
path: './dist.test',
filename: '[name].bundle.js'
},
module: {
rules: [
{
test: /\.ts$/,
enforce: 'pre',
loader: 'tslint-loader',
exclude: [
helpers.root('node_modules')
]
},
{
test: /\.js$/,
enforce: 'pre',
loader: 'source-map-loader',
exclude: [
helpers.root('node_modules/rxjs'),
helpers.root('node_modules/#angular')
]
},
{
test: /\.ts$/,
loaders: [
{
loader: 'awesome-typescript-loader',
query: {
tsconfig: helpers.root('tsconfig.json'),
module: 'commonjs',
target: 'es5',
useForkChecker: true
}
},
{
loader: 'angular2-template-loader'
}
],
exclude: [/\.e2e\.ts$/]
},
{
test: /\.html$/,
loader: 'html'
},
{
test: /\.(png|jpe?g|gif|svg|woff|woff2|ttf|eot|ico)$/,
loader: 'null'
},
{
test: /\.css$/,
exclude: helpers.root('src', 'app'),
loader: 'null'
},
{
test: /\.css$/,
include: helpers.root('src', 'app'),
loader: 'raw'
},
{
test: /\.(js|ts)$/, loader: 'sourcemap-istanbul-instrumenter-loader',
enforce: 'post',
exclude: [
/\.(e2e|spec)\.ts$/,
/node_modules/
],
query: { 'force-sourcemap': true }
},
]
},
plugins: [
new webpack.SourceMapDevToolPlugin({
filename: null, // if no value is provided the sourcemap is inlined
test: /\.(ts|js)($|\?)/i // process .js and .ts files only
}),
new webpack.LoaderOptionsPlugin({
options: {
tslint: {
emitErrors: false,
failOnHint: false,
resourcePath: `./src`
}
}
}),
new webpack.ContextReplacementPlugin(
/angular(\\|\/)core(\\|\/)(esm(\\|\/)src|src)(\\|\/)linker/,
helpers.root('src')
)
],
node: {
fs: 'empty',
global: true,
process: false,
crypto: 'empty',
module: false,
clearImmediate: false,
setImmediate: false
}
}
package.json:
You will need to install new packages and update your start script to this:
"start": "webpack-dev-server --config config/webpack.dev.js --profile --watch --content-base src/",
And install these packages:
npm i -D extract-text-webpack-plugin#2.0.0-beta.4 karma-remap-istanbul source-map-loader sourcemap-istanbul-instrumenter-loader tslint tslint-loader webpack#2.1.0-beta.25 webpack-dev-server#2.1.0-beta.3 webpack-md5-hash
Last but not least we just need to do some changes on the tsconfig.json and since we are now using tslint we add the a tslint.json file.
tsconfig.json:
{
"compilerOptions": {
"buildOnSave": false,
"compileOnSave": false,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"module": "commonjs",
"moduleResolution": "node",
"outDir": "dist/out-tsc",
"noImplicitAny": true,
"removeComments": false,
"sourceMap": true,
"suppressImplicitAnyIndexErrors": true,
"target": "es5"
}
}
tslint.json:
{
"rules": {
"member-access": false,
"member-ordering": [
true,
"public-before-private",
"static-before-instance",
"variables-before-functions"
],
"no-any": false,
"no-inferrable-types": false,
"no-internal-module": true,
"no-var-requires": false,
"typedef": false,
"typedef-whitespace": [
true,
{
"call-signature": "nospace",
"index-signature": "nospace",
"parameter": "nospace",
"property-declaration": "nospace",
"variable-declaration": "nospace"
},
{
"call-signature": "space",
"index-signature": "space",
"parameter": "space",
"property-declaration": "space",
"variable-declaration": "space"
}
],
"ban": false,
"curly": false,
"forin": true,
"label-position": true,
"label-undefined": true,
"no-arg": true,
"no-bitwise": true,
"no-conditional-assignment": true,
"no-console": [
true,
"debug",
"info",
"time",
"timeEnd",
"trace"
],
"no-construct": true,
"no-debugger": true,
"no-duplicate-variable": true,
"no-empty": false,
"no-eval": true,
"no-null-keyword": false,
"no-shadowed-variable": true,
"no-string-literal": false,
"no-switch-case-fall-through": true,
"no-unreachable": true,
"no-unused-expression": true,
"no-unused-variable": false,
"no-use-before-declare": true,
"no-var-keyword": true,
"radix": true,
"switch-default": true,
"triple-equals": [
true,
"allow-null-check"
],
"use-strict": [
true,
"check-module"
],
"eofline": true,
"indent": [
true,
"spaces"
],
"max-line-length": [
true,
100
],
"no-require-imports": false,
"no-trailing-whitespace": true,
"object-literal-sort-keys": false,
"trailing-comma": [
true,
{
"multiline": false,
"singleline": "never"
}
],
"align": false,
"class-name": true,
"comment-format": [
true,
"check-space"
],
"interface-name": false,
"jsdoc-format": true,
"no-consecutive-blank-lines": false,
"no-constructor-vars": false,
"one-line": [
true,
"check-open-brace",
"check-catch",
"check-else",
"check-finally",
"check-whitespace"
],
"quotemark": [
true,
"single",
"avoid-escape"
],
"semicolon": [true, "always"],
"variable-name": [
true,
"check-format",
"allow-leading-underscore",
"ban-keywords"
],
"whitespace": [
true,
"check-branch",
"check-decl",
"check-operator",
"check-separator",
"check-type"
]
}
}
If you want you can check the differences between the Angular.io setup (on the left) and the changes I made to make coverage work (on the right) here