可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):
问题:
I've been fighting the last few days with getting coverage reports working and I've hit an issue I haven't been able to resolve. The stack trace I'm receiving, with a couple of lines of surrounding debug code, is
15 07 2016 14:41:53.413:DEBUG [middleware:source-files]: Requesting /jspm_packages/npm/process@0.11.5/browser.js /
15 07 2016 14:41:53.413:DEBUG [middleware:source-files]: Fetching /jspm_packages/npm/process@0.11.5/browser.js
15 07 2016 14:41:53.415:DEBUG [proxy]: proxying request - /jspm_packages/npm/process@0.11.5/browser.js to localhost:9876
15 07 2016 14:41:53.417:DEBUG [middleware:source-files]: Requesting /base/jspm_packages/npm/process@0.11.5/browser.js /
15 07 2016 14:41:53.417:DEBUG [middleware:source-files]: Fetching /home/administrator/assist-2.0/client/jspm_packages/npm/process@0.11.5/browser.js
15 07 2016 14:41:53.419:DEBUG [web-server]: serving: /home/administrator/assist-2.0/client/jspm_packages/npm/process@0.11.5/browser.js
PhantomJS 2.1.1 (Linux 0.0.0) ERROR
Error: (SystemJS) /home/administrator/assist-2.0/client/jspm_packages/system.src.js:3047:137
/home/administrator/assist-2.0/client/jspm_packages/system.src.js:3756:33
/home/administrator/assist-2.0/client/jspm_packages/system.src.js:4251:37
/home/administrator/assist-2.0/client/jspm_packages/system.src.js:1508:27
/home/administrator/assist-2.0/client/jspm_packages/system.src.js:2738:28
register@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:2998:23
eval code
eval@[native code]
__exec@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:1544:18
execute@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:3723:20
linkDynamicModule@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:3281:36
link@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:3124:28
execute@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:3491:17
doDynamicExecute@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:774:32
link@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:972:36
doLink@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:631:11
updateLinkSetOnLoad@/home/administrator/assist-2.0/client/jspm_packages/system.src.js:677:24
/home/administrator/assist-2.0/client/jspm_packages/system.src.js:493:30
invoke@/home/administrator/assist-2.0/client/node_modules/zone.js/dist/zone.js:323:34
runGuarded@/home/administrator/assist-2.0/client/node_modules/zone.js/dist/zone.js:230:54
/home/administrator/assist-2.0/client/node_modules/zone.js/dist/zone.js:206:40
Evaluating http://localhost:9876/dist/src/components/widgets/nested-table/nested-table.component.js
Error loading http://localhost:9876/dist/tests/unit/components/nested-table.spec.js
PhantomJS 2.1.1 (Linux 0.0.0): Executed 0 of 0 ERROR (1.095 secs / 0 secs)
15 07 2016 14:41:53.436:DEBUG [karma]: Run complete, exiting.
15 07 2016 14:41:53.437:DEBUG [launcher]: Disconnecting all browsers
15 07 2016 14:41:53.441:DEBUG [launcher]: Process PhantomJS2 exited with code 0
15 07 2016 14:41:53.442:DEBUG [temp-dir]: Cleaning temp dir /tmp/karma-88547336
15 07 2016 14:41:53.449:DEBUG [launcher]: Finished all browsers
karma.conf.js
module.exports = function(config) {
config.set({
frameworks: ['jspm', 'jasmine'],
basePath: '.',
files: [
'node_modules/zone.js/dist/zone.js',
'node_modules/zone.js/dist/jasmine-patch.js',
'node_modules/reflect-metadata/Reflect.js',
'node_modules/es6-shim/es6-shim.js',
'jspm_packages/system-polyfills.js'
],
jspm: {
loadFiles: [
'dist/tests/**/*.js',
],
serveFiles: [
'dist/src/**/*.js',
// 'src/**/*.ts'
]
},
proxies: {
// '/src/': '/base/src/',
'/dist/src/': '/base/dist/src/',
'/dist/tests/': '/base/dist/tests/',
'/jspm_packages/': '/base/jspm_packages/',
},
port: 9876,
logLevel: config.LOG_INFO,
colors: true,
autoWatch: true,
browsers: [
// 'PhantomJS',
'PhantomJS2',
],
plugins: [
'karma-jasmine',
'karma-jspm',
'karma-phantomjs-launcher',
'karma-phantomjs2-launcher',
'karma-junit-reporter',
'karma-coverage',
'karma-sourcemap-loader',
// 'karma-typescript-preprocessor'
],
reporters: [
'coverage',
'junit',
'dots',
],
junitReporter: {
outputDir: '.',
outputFile: "./reports/client-test-results.xml",
useBrowserName: false
},
preprocessors: {
'dist/src/**/!(*.spec).js!(.map)': [
'sourcemap',
// 'typescript',
'coverage'
],
// 'src/**/*.ts': [
// 'sourcemap',
// 'typescript',
// 'coverage',
// ],
},
coverageReporter: {
dir: 'reports',
subdir: 'coverage',
includeAllSources: true,
reporters: [
{
type: 'json',
file: 'coverage.json'
},
// {
// type: 'cobertura',
// file: 'coverage.xml'
// },
// {
// type: 'html',
// subdir: 'coverage/html'
// }
],
instrumenterOptions: {
istanbul: {
noCompact: true
}
}
},
// typescriptPreprocessor: {
// options: {
// inlineSourceMap: true,
// inlineSources: true,
// "target": "es5",
// "module": "system",
// "sourceMap": true,
// "emitDecoratorMetadata": true,
// "experimentalDecorators": true,
// "removeComments": false,
// "noImplicitAny": false,
// },
// transformPath: function(path) {
// return path.replace(/\.ts$/, '.js');
// }
// },
singleRun: true
})
};
nested-table.spec.ts
import {NestedTableComponent} from '../../../src/components/widgets/nested-table/nested-table.component';
import {beforeEach, describe, expect, it} from '@angular/core/testing';
import {DEBUG_VIEW_TEST_DATA, DEBUG_VIEW_TEST_HEADERS} from '../../../src/db/mockdata';
import { ImmutableMatchers } from '../helpers/jasmine-immutable-matchers';
describe('Nested Table Component', () => {
let ntable, data, headers;
beforeEach(function() {
jasmine.addMatchers(ImmutableMatchers);
ntable = new NestedTableComponent();
data = DEBUG_VIEW_TEST_DATA[0].data;
headers = DEBUG_VIEW_TEST_HEADERS[0].headers;
});
it('should return an array of keys', () => {
expect(ntable.keys(data)).toEqualImmutable(data.keySeq());
});
it('should calculate the widths of columns', () => {
let expected = {
"Element Property": 4,
"Key": 2,
"Property Value": 2,
"Last Refresh": 2,
"Element Definition": 2
}
expect(ntable.getColWidths(headers)).toEqual(expected);
});
});
When I change the preprocessors to
preprocessors: {
'dist/src/!(*.spec).js!(.map)': [
'sourcemap',
// 'typescript',
'coverage'
],
// 'src/**/*.ts': [
// 'sourcemap',
// 'typescript',
// 'coverage',
// ],
},
I don't receive the stack trace, and it gives me coverage, but obviously not on my other components and such. This appears to be a problem with SystemJS module loading, but I can not figure out what's going on, or if that's even the actual problem.
The tests pass fine when I remove coverage from the reporter list.
I also attempted to use karma-typescript-preprocessor (refer to the commented out bits of code in karma.conf.js), and I was getting a coverage report, but the sourcemap files would not map correctly, which I also could not figure out.
Has anyone experienced anything similar and found a way to overcome the issue?
回答1:
I wish I can answer your question directly, but I too struggled to get a project running that has code coverage. I finally broke down and refactored karma-jspm to explicitly includes code coverage.
To see a sample, I created a seed project incorporating all the libraries in your question. The key component is that SystemJS is utilized for development, production, unit tests, e2e tests, and code coverage.
See angular2-jspm-typescript-seed
This project is using @uiuxengineering/karma-jspm instead of the original karma-jspm to support SystemJS code coverage and angular2.
The Karma Config looks like this:
// Karma configuration
// Generated on Wed Jul 15 2015 09:44:02 GMT+0200 (Romance Daylight Time)
'use strict';
var argv = require('yargs').argv;
module.exports = function(config) {
config.set({
// base path that will be used to resolve all patterns (eg. files, exclude)
basePath: './src/client',
// frameworks to use
// available frameworks: https://npmjs.org/browse/keyword/karma-adapter
frameworks: ['jspm', 'jasmine'],
// list of files / patterns to load in the browser
jspm: {
stripExtension: false,
/**
* main config
*/
config: 'jspm.config.js',
/**
* dev jspm config.
*/
dev: null,
/**
* node jspm config
*/
node: null,
/**
* browser jspm config.
*/
browser: null,
packages: 'jspm_packages',
/**
* Adapters do any preloading with systemJs before tests start,
* and impletent the karma.start method.
*
* 'angular2' is the only option for now.
* If not defined, a default adapter is used.
*
* @param path to adapter or 'angular2'
*/
adapter: 'angular2',
/**
* Files loaded by system js before app is loaded.
* They will load in same order provided.
*
* Default files are set for 'angular2' adapter.
* This property will override defaults if set.
*/
// preloadBySystemJS: [
// 'zone.js/dist/zone.js',
// '@angular/core/testing',
// '@angular/platform-browser-dynamic/testing',
// 'zone.js/dist/jasmine-patch.js',
// 'zone.js/dist/async-test.js',
// 'zone.js/dist/fake-async-test.js'
// ],
/**
* Files may be provided in a object to
* configure specific serve options.
*
* Files will be put in an object similar to:
*
* {
* pattern: 'someFile.js,
* included: false, // configurable
* served: true, // configurable
* nocache: false, // configurable
* watched: true // configurable
* };
*
* All options configured if provided in an object.
*
*/
loadFiles: [
'app/**/*.spec.ts',
'testing/**/*.ts'
],
/**
* Files will be put in an object EXACTLY with the options:
*
* {
* pattern: 'someFile.js,
* included: false,
* served: true,
* nocache: false,
* watched: true
* };
*/
serveFiles: [
'app/**/*!(*.spec|*.e2e-spec).ts',
'app/**/*.html',
'app/**/*.scss',
'assets/**/*.json'
]
},
// must go along with above, suppress annoying 404 warnings.
proxies: {
'/app/': '/base/app/',
'/assets/': '/base/assets/',
'/jspm_packages/': '/base/jspm_packages/',
'/scss/': '/base/scss/',
'/testing/': '/base/testing/'
},
// list of files to exclude
exclude: [],
// preprocess matching files before serving them to the browser
// available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
preprocessors: {
'app/**/!(*.spec).ts': ['jspm']
},
// test results reporter to use
// possible values: 'dots', 'progress'
// available reporters: https://npmjs.org/browse/keyword/karma-reporter
// reporters: ['junit', 'coverage', 'spec'],
reporters: ['mocha', 'jspm'],
coverageReporter: {
// map coverage to source typescript or es6 files.
remap: true,
dir: process.cwd() + '/test-reports/unit',
subdir: function(directory) {
return directory.replace(/\s/g, '_');
},
reporters: [
// will generate html report
{type: 'html'},
// will generate json report file and this report is loaded to
// make sure failed coverage cause gulp to exit non-zero
{type: 'json', file: 'coverage-final.json'},
// will generate Icov report file and this report is published to coveralls
{type: 'lcov'},
// it does not generate any file but it will print coverage to console
// a summary of the coverage
// {type: 'text-summary'},
// it does not generate any file but it will print coverage to console
// a detail report of every file
{type: 'text'}
]
},
// 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,
loggers: [{
"type": "file",
"filename": "./log_file.log",
"maxLogSize": 20480,
"backups": 3,
"category": "absolute-logger"
}],
// 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: [
'Chrome'
],
plugins: [
require('@uiuxengineering/karma-jspm'),
'karma-jasmine',
'karma-chrome-launcher',
'karma-mocha-reporter',
'karma-ie-launcher',
'karma-phantomjs-launcher'
],
customLaunchers: {
Chrome_travis_ci: {
base: 'Chrome',
flags: ['--no-sandbox']
}
},
// Continuous Integration mode
// if true, Karma captures browsers, runs the tests and exits
singleRun: false,
// Passing command line arguments to tests
client: {
files: argv.files
}
});
if (process.env.APPVEYOR) {
config.browsers = ['IE'];
config.singleRun = true;
config.browserNoActivityTimeout = 90000; // Note: default value (10000) is not enough
}
if (process.env.TRAVIS || process.env.CIRCLECI) {
config.browsers = ['Chrome_travis_ci'];
config.singleRun = true;
}
};
The Karma config is designed to run in WebStorm as well with the gulp task "test".
回答2:
I'm also struggling with a working setup for karma, systemjs and typescript. I found a working setup but it's a bit ugly and depends on remaping the coverage report through gulp, because the karma plugin for remaping doesn't work correctly inside karma but only in gulp.
I used the systemjs plugin instead of the jspm plugin, as it seams to work better.
// Karma configuration
// Generated on Sat Aug 13 2016 18:33:27 GMT+0200 (CEST)
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-adapter
frameworks: ['systemjs', 'jasmine'],
// list of files / patterns to load in the browser
files: [
'node_modules/core-js/client/shim.min.js',
'node_modules/reflect-metadata/Reflect.js',
'node_modules/zone.js/dist/zone.js',
// {pattern: 'node_modules/systemjs/dist/system.src.js', included: false, watched: false},
// {pattern: 'jspm_packages/**/*.js', included: false, watched: false},
{pattern: 'jspm_packages/npm/@angular/**/*.js', included: false, watched: false},
{pattern: 'jspm_packages/npm/rxjs@5.0.0-beta.10/**/*.js', included: false, watched: false},
'jspm_packages/npm/lodash@4.13.1/lodash.js',
'jspm_packages/npm/angular2-swiper@0.4.0/dist/ks-swiper.js',
'jspm_packages/npm/swiper@3.3.1/dist/js/swiper.js',
'jspm_packages/npm/jquery@2.2.4/dist/jquery.js',
'jspm_packages/npm/foundation-sites@6.2.3/dist/foundation.js',
'jspm_packages/npm/symbol-observable@1.0.1/index.js',
{pattern: 'jspm_packages/npm/symbol-observable@1.0.1/lib/*.js', included: false, watched: false},
{pattern: 'jspm_packages/npm/rxjs@5.0.0-beta.6/**/*.js', included: false, watched: false},
{pattern: 'jspm_packages/npm/crypto-js@3.1.6/*.js', included: false, watched: false},
{pattern: 'jspm_packages/github/**/*.js', included: false, watched: false},
{pattern: 'jspm_packages/npm/*.js', included: false, watched: false},
{pattern: 'dev/**/*.js', included: true, watched: true},
{pattern: 'test/*.spec.js', included: true, watched: true},
{pattern: 'templates/*.html', included: true, watched: true}
],
// list of files to exclude
exclude: [],
proxies: {
// '/jspm_packages/': '/base/jspm_packages/'
// '/templates/': '/base/templates/'
},
systemjs: {
configFile: 'dev/systemjs.config.js',
// serveFiles: ['test/**/*.spec.js'],
config: {
paths: {
// "github:*": "./jspm_packages/github/*",
// "npm:*": "./jspm_packages/npm/*"
},
map: {
'systemjs': 'node_modules/systemjs/dist/system.js',
'system-polyfills': 'node_modules/systemjs/dist/system-polyfills.js',
'es6-module-loader': 'node_modules/es6-module-loader/dist/es6-module-loader.js'
},
meta: {
'dev/app/*': {format: 'register'}
}
}
},
// preprocess matching files before serving them to the browser
// available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
preprocessors: {
'dev/app/**/*.js': ['coverage']
},
// test results reporter to use
// possible values: 'dots', 'progress'
// available reporters: https://npmjs.org/browse/keyword/karma-reporter
// reporters: ['spec', 'coverage', 'karma-remap-istanbul'],
reporters: ['spec', 'coverage'],
coverageReporter: {
reporters: [{
type: 'json',
subdir: '.'
}, {
type: 'text-summary'
}/*, {
type: 'html'
}*/]
},
/*
remapIstanbulReporter: {
src: 'coverage/coverage-final.json',
reports: {
html: 'coverage'
},
dest: './coverage-source'
}, */
// 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_WARN,
// 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', 'Chrome'],
// 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
})
};
This worked for me. Additionaly I have this task in my gulpfile
gulp.task('coverage', ['test'], function () {
return gulp.src('coverage/**/coverage-final.json')
.pipe(remapIstanbul({
reports: {
'json': 'reports/coverage/coverage.json',
'html': 'reports/coverage/html'
}
}))
.pipe(gulp.dest('reports/coverage/'));
});
This setup still has some issues. For example some empty or not "executed" files may break it, because SystemJS complains about registering and not executing.
Test are only included through *.spec.js because using **/*.spec.js doesn't load any tests.
I already filled a bug report for karma-remap-istanbul plugin.
https://github.com/marcules/karma-remap-istanbul/issues/21
Maybe there is a chance to get is work inside karma.
I Hope that may help to improve your setup and maybe we can even work out a better solution with everything working.
BTW: I tried to use a setup similar to your's and got the following error, I already have seen a lot of time with jspm and systemjs extension:
Module http://localhost:9876/src/common/modules/product/product.js interpreted as global module format, but called System.register.
