讓Karma使用SystemJS，Angular2和Typescript的問題

Question

我正面臨着讓Karma使用SystemJS，Angular2和Typescript的問題。

這是我的karma.conf.js：

'use strict';
module.exports = function (config) {
    config.set({

        // base path, that will be used to resolve files and exclude
        basePath: '.',

        // frameworks to use
        frameworks: ['systemjs', 'jasmine'],

        plugins: ['karma-systemjs', 'karma-jasmine', 'karma-phantomjs-launcher'],

        files: [
            'node_modules/reflect-metadata/Reflect.js',
            'app/**/*.spec.ts',
            //'jspm_packages/system-polyfills.js',
            'karma-test-shim.js'
        ],

        systemjs: {
            configFile: "systemjs.config.js",
            config: {
                //baseURL: ".",
                transpiler: "typescript",
                paths: {
                    "systemjs": "jspm_packages/system.js",
                    "system-polyfills": "jspm_packages/system-polyfills.js",
                    "typescript": "node_modules/typescript/lib/typescript.js"
                },
                packages: {
                    'app': {
                        defaultExtension: 'ts'
                    }
                }
            },
            includeFiles: [
                'node_modules/reflect-metadata/Reflect.js'
            ],
            serveFiles: [
                'app/**/*.ts',
                'main-bundle.js'
            ]
        },


        // proxied base paths
        proxies: {
            // required for component assets fetched by Angular's compiler
            "/app/": "/base/app/",
            "/jspm_packages/": "/base/jspm_packages/",
            "/node_modules/": "/base/node_modules/"
        },


        // list of files to exclude
        exclude: [],


        // 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_DEBUG,


        // enable / disable watching file and executing tests whenever any file changes
        autoWatch: false,


        // Start these browsers, currently available:
        // - Chrome
        // - ChromeCanary
        // - Firefox
        // - Opera
        // - Safari (only Mac)
        // - PhantomJS
        // - IE (only Windows)
        browsers: ['PhantomJS'],


        // If browser does not capture in given timeout [ms], kill it
        captureTimeout: 60000,


        // Continuous Integration mode
        // if true, it capture browsers, run tests and exit
        singleRun: true
    });
};

我的業力測試-shim.js：

/*global jasmine, __karma__, window*/
Error.stackTraceLimit = Infinity;
jasmine.DEFAULT_TIMEOUT_INTERVAL = 1000;

__karma__.loaded = function () {
};


function isJsFile(path) {
    return path.slice(-3) == '.js';
}

function isSpecFile(path) {
    return path.slice(-8) == '.spec.js';
}

function isBuiltFile(path) {
    var builtPath = '/base/app/';
    return isJsFile(path) && (path.substr(0, builtPath.length) == builtPath);
}

var allSpecFiles = Object.keys(window.__karma__.files)
    .filter(isSpecFile)
    .filter(isBuiltFile);

// Load our SystemJS configuration.
System.config({
    baseURL: '/base'
});

System.config(
    {
        map: {
            'rxjs': 'node_modules/rxjs',
            '@angular': 'node_modules/@angular',
            'app': 'app'
        },
        packages: {
            'app': {
                main: 'main.js',
                defaultExtension: 'js'
            },
            '@angular/core': {
                main: 'index.js',
                defaultExtension: 'js'
            },
            '@angular/compiler': {
                main: 'index.js',
                defaultExtension: 'js'
            },
            '@angular/common': {
                main: 'index.js',
                defaultExtension: 'js'
            },
            '@angular/platform-browser': {
                main: 'index.js',
                defaultExtension: 'js'
            },
            '@angular/platform-browser-dynamic': {
                main: 'index.js',
                defaultExtension: 'js'
            },
            'rxjs': {
                defaultExtension: 'js'
            }
        }
    });

Promise.all([
    System.import('@angular/core/testing'),
    System.import('@angular/platform-browser-dynamic/testing')
]).then(function (providers) {
    var testing = providers[0];
    var testingBrowser = providers[1];

    testing.setBaseTestProviders(testingBrowser.TEST_BROWSER_DYNAMIC_PLATFORM_PROVIDERS,
        testingBrowser.TEST_BROWSER_DYNAMIC_APPLICATION_PROVIDERS);

}).then(function() {
    // Finally, load all spec files.
    // This will run the tests directly.
    return Promise.all(
        allSpecFiles.map(function (moduleName) {
            return System.import(moduleName);
        }));
}).then(__karma__.start, __karma__.error);

我的systemjs.config.js：

(function (global) {

    // map tells the System loader where to look for things
    var map = {
        'app': 'app', // 'dist',
        'rxjs': 'node_modules/rxjs',
        'angular2-in-memory-web-api': 'node_modules/angular2-in-memory-web-api',
        '@angular': 'node_modules/@angular',
        'crypto': '@empty'// this fixed my last issue
    };

    // packages tells the System loader how to load when no filename and/or no extension
    var packages = {
        'app': {main: 'main.js', defaultExtension: 'js'},
        'rxjs': {defaultExtension: 'js'},
        'angular2-in-memory-web-api': {defaultExtension: 'js'}
    };

    var packageNames = [
        '@angular/common',
        '@angular/compiler',
        '@angular/core',
        '@angular/http',
        '@angular/platform-browser',
        '@angular/platform-browser-dynamic',
        '@angular/router',
        '@angular/upgrade'
    ];

    // add package entries for angular packages in the form '@angular/common': { main: 'index.js', defaultExtension: 'js' }
    packageNames.forEach(function (pkgName) {
        packages[pkgName] = {main: 'index.js', defaultExtension: 'js'};
    });

    var config = {
        map: map,
        packages: packages
    };

    // filterSystemConfig - index.html's chance to modify config before we register it.
    if (global.filterSystemConfig) {
        global.filterSystemConfig(config);
    }

    System.config(config);

})(this);

當我用karma start karma.conf.js運行我的測試時karma start karma.conf.js並且我的測試位於主ts文件旁邊。

我收到此錯誤：

11 05 2016 17:02:24.306:DEBUG [web-server]: serving (cached): /Users/julien/Documents/projects/bignibou/bignibou-site/bignibou-client/node_modules/typescript/lib/typescript.js
PhantomJS 2.1.1 (Mac OS X 0.0.0) ERROR
  Error: eval code
    eval@[native code]
    F@/Users/julien/Documents/projects/bignibou/bignibou-site/bignibou-client/jspm_packages/system-polyfills.js:4:12217
    H@/Users/julien/Documents/projects/bignibou/bignibou-site/bignibou-client/jspm_packages/system-polyfills.js:4:11846
    when@/Users/julien/Documents/projects/bignibou/bignibou-site/bignibou-client/jspm_packages/system-polyfills.js:4:15520
    run@/Users/julien/Documents/projects/bignibou/bignibou-site/bignibou-client/jspm_packages/system-polyfills.js:4:14559
    _drain@/Users/julien/Documents/projects/bignibou/bignibou-site/bignibou-client/jspm_packages/system-polyfills.js:4:3250
    drain@/Users/julien/Documents/projects/bignibou/bignibou-site/bignibou-client/jspm_packages/system-polyfills.js:4:1667
    Evaluating /Users/julien/Documents/projects/bignibou/bignibou-site/bignibou-client/karma-test-shim.js
    Error loading /Users/julien/Documents/projects/bignibou/bignibou-site/bignibou-client/karma-test-shim.js


11 05 2016 17:02:24.316:DEBUG [karma]: Run complete, exiting.
11 05 2016 17:02:24.316:DEBUG [launcher]: Disconnecting all browsers
11 05 2016 17:02:24.324:DEBUG [launcher]: Process PhantomJS exited with code 0
11 05 2016 17:02:24.324:DEBUG [temp-dir]: Cleaning temp dir /var/folders/1p/pcqq7s0x58l_s7ds52gxt_fw0000gp/T/karma-62098834
11 05 2016 17:02:24.329:DEBUG [launcher]: Finished all browsers
npm ERR! Test failed.  See above for more details.

有人可以幫忙嗎？

Answer 1

我花了幾天時間查看所有不同的A2種子/ clis，其中90％使用舊的A2代碼，我發現很難將它們解釋為最新的A2代碼。

我終於找到了這個。 https://github.com/juliemr/ng2-test-seed

這使我的業力測試與systemjs一起運行。 這是一個非常好的非常簡單的項目，它可以獲得基礎知識並且不會給你帶來額外的垃圾。

您需要更改一些文件網址以匹配您正在使用的任何內容。 使用它作為我的指導，我能夠使用typescript和systemjs運行單元測試。

Answer 2

我可以看到你所做的幾個問題。

首先我認為你配置了兩次SystemJS：

• 一次在test-shim-karma.js文件中
• 一旦進入karma.conf.js可以通過SystemJS karma插件。

然后，您不配置將在規范文件中使用的源模塊：

packages['base/app'] = {
  defaultExtension: 'js',
  format: 'cjs',
  map: Object.keys(window.__karma__.files).filter(onlyAppFiles).reduce(createPathRecords, {})
};

您多次調用System.config方法。

我還會在你的karma.conf.js文件的files部分添加一些條目：

files: [
  // Paths loaded by Karma
  {pattern: 'node_modules/es6-shim/es6-shim.min.js', included: true, watched: true},
  {pattern: 'node_modules/reflect-metadata/Reflect.js', included: true, watched: true},
  {pattern: 'node_modules/zone.js/dist/zone.js', included: true, watched: true},
  {pattern: 'node_modules/zone.js/dist/async-test.js', included: true, watched: true},
  {pattern: 'node_modules/systemjs/dist/system-polyfills.js', included: true, watched: true},
  {pattern: 'node_modules/systemjs/dist/system.src.js', included: true, watched: true},
  {pattern: 'node_modules/rxjs/**/*.js', included: false, watched: false},
  {pattern: 'node_modules/@angular/**/*.js', included: false, watched: false},
  {pattern: 'karma-test-shim.js', included: true, watched: true},

  // Paths loaded via module imports
  {pattern: 'app/**/*.js', included: false, watched: true},

  // Paths to support debugging with source maps in dev tools
  {pattern: 'app/**/*.ts', included: false, watched: true},
  {pattern: 'app/**/*.js.map', included: false, watched: false}
],

你可以看看這個項目是否有使用Angular2 RC1和TypeScript的Karma的工作配置：

• https://github.com/templth/geo-open-data-viz/tree/v2