Executed 0 of 0 ERROR while running unit tests - karma-runner

Im getting Executed 0 of 0 ERROR error when trying to run unit test cases.
I followed few solutions that was mentioned for this problem, but still i get the same error.
Tried:
Removing the angular-scenario file
Added angular-scenario in exclusion list.
But nothing worked. I still get the same error. My karma.conf.js file is
module.exports = function(config){
config.set({
basePath : '../',
files : [
'app/lib/angular/angular.js',
'test/lib/angular/angular-mocks.js',
'app/js/*.js',
'test/unit/*.js'
],
exclude : ['test/lib/angular/angular-scenario.js'],
autoWatch : true,
frameworks: ['jasmine'],
browsers : ['Chrome'],
plugins : [
'karma-junit-reporter',
'karma-chrome-launcher',
'karma-firefox-launcher',
'karma-jasmine'
],
junitReporter : {
outputFile: 'test_out/unit.xml',
suite: 'unit'
}
})}

Make sure you path to angular-scenario.js is correct.
I used the big hammer:
// list of files to exclude
exclude: [
'**/angular-scenario.js'
],
This fixed the problem for me because angular-scenario.js was being picked up the by 'js/**/*.js' in my files section.

Angular-scenario.js is deprecated. Use Protractor for your e2e (end to end) testing, and remove all references to angular-scenario.js from the config file, above.
Protractor has some great getting started docs to help you along too.
I also suggest using the grunt/protractor plug in if you're using yeoman.
Protactor Setup
https://angular.github.io/protractor/#/
Grunt Protractor Runner - NPM (node package manager)
https://www.npmjs.com/package/grunt-protractor-runner

Related

Error : You need to include some adapter that implements __karma__.start method

I'm trying to run unit tests using karma and i'm getting the error You need to include some adapter that implements __karma__.start method!. I tried running with grunt and karma start commands. I did googling and all the solutions didn't work out. Not sure what i'm doing wrong. I included the right adapter which comes with karma-jasmine, which has the __karma__.start method, under plugins in karma.conf.js file. Here's my configuration file :-
module.exports = function(config){
config.set({
// root path location that will be used to resolve all relative paths in files and exclude sections
basePath : '../',
files : [
'bower_components/angular/angular.js',
'bower_components/angular-mocks/angular-mocks.js',
'node_modules/requirejs/require.js',
'node_modules/karma-jasmine/lib/adapter.js',
'app.js',
'mainapp/mainapp.js',
'mainapp/notes/notes.js',
'mainapp/notes/partial/create/create.js',
'mainapp/notes/partial/create/create-spec.js'
],
// files to exclude
exclude: [
'bower_components/angular/angular/*.min.js'
],
// karma has its own autoWatch feature but Grunt watch can also do this
autoWatch : false,
// testing framework, be sure to install the correct karma plugin
frameworks: ['jasmine', 'browserify', 'requirejs'],
// browsers to test against, be sure to install the correct browser launcher plugins
browsers : ['PhantomJS'],
// map of preprocessors that is used mostly for plugins
preprocessors: {
'mainapp/notes/partial/create/create-spec.js' : ['browserify']
},
reporters: ['progress'],
// list of karma plugins
plugins : [
'karma-teamcity-reporter',
'karma-chrome-launcher',
'karma-phantomjs-launcher',
'karma-babel-preprocessor',
'karma-requirejs',
'karma-jasmine',
'karma-browserify'
],
singleRun: true
})}
Using the requirejs framework turns off the automatic calling of __karma__.start. You need to create a file that a) configures RequireJS and b) calls __karma__.start to kick of the tests. Here's an example. It scans through the files that Karma is serving to find the files that contains tests. This is based on a naming convention that any file that ends with spec.js or test.js is a test file. It converts the file names to module names. It then configures RequireJS. One thing it does is pass all the test modules as deps so that all test modules are loaded right away. It sets __karma__.start as callback so that when all modules passed in deps are loaded, the tests start.
var allTestFiles = [];
var TEST_REGEXP = /(spec|test)\.js$/i;
Object.keys(window.__karma__.files).forEach(function(file) {
if (TEST_REGEXP.test(file)) {
// Normalize paths to RequireJS module names.
allTestFiles.push(file);
}
});
require.config({
baseUrl: '/base',
paths: {
'chai': 'node_modules/chai/chai',
'chai-jquery': 'node_modules/chai-jquery/chai-jquery',
'jquery': 'node_modules/jquery/dist/jquery.min',
'underscore': '//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.6.0/underscore-min',
'sn/sn-underscore': 'static/scripts/sn/sn-underscore',
'vendor/jquery-ui': '//cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min'
},
deps: allTestFiles,
callback: window.__karma__.start
});
You need to include this file in your files parameter in your karma.conf.js file. Since you use the requirejs framework, you just need to put it first in the list. For instance, if you call the file test-main.js (as suggested in Karma's documentation):
files: [
'test-main.js',
...
]
If you load RequireJS yourself by listing it in files, you need to put test-main.js after RequireJS.

jspm not loading bundles with --inject

Been experimenting with jspm and systemjs over the weekend. Everything is working fine except for the bundling jspm offers. I can load individual files, but jsmp refuses to load the bundle file (which is optimized).
I'm creating the bundle file using:
jspm bundle lib/login assets/js/1-login.js --inject
This updates the config.js file which looks like:
System.config({
baseURL: "/",
defaultJSExtensions: true,
transpiler: "babel",
babelOptions: {
"optional": [
"optimisation.modules.system"
]
},
paths: {
"github:*": "jspm_packages/github/*",
"npm:*": "jspm_packages/npm/*"
},
bundles: {
"1-login.js": [
"lib/login.js",
"lib/sample.js"
]
},
map: {....}
});
lib/login.js
import * as sample from 'lib/sample'
export function test() {
sample.testMethod();
}
lib/sample.js
import $ from 'jquery'
export function testMethod( ) {
console.log( $('body') );
}
So, according to the jsmp docs:
As soon as one of these modules is requested, the request is intercepted and the bundle is loaded dynamically first, before continuing with the module load.
It's my understanding that running
System.import('lib/login.js');
should load the bundle (and optimised file), but is doesn't - it just loads the actual file. What am I missing here? And as a bonus question, why is jquery not in the bundle list?
Well, figured out where I went wrong.
I keep all the generated assets in assets/js, but in my config.json I didn't change the baseUrl to reflect this. I did in fact have the baseUrl set correctly in package.json, which is why jspm didn't throw a lot of errors.
This was the same reason jquery wasn't loading, so problem solved :)

How to suppress output for skipped tests in Jasmine

If I have the scenario with 1000+ tests and want to run only selected portion of them I can use fdescribe.
The rest of tests are skipped which is great however they still pollute the console output. How can I suppress the console output for skipped tests?
If you're running tests via Karma, there is a spec reporter plugin that you can configure to ignore various things.
https://www.npmjs.com/package/karma-spec-reporter
https://www.npmjs.com/package/karma-spec-reporter-2
Add the following to your karma.conf.js:
...
config.set({
...
reporters: ["spec"],
specReporter: {
suppressSkipped: true, // do not print information about skipped tests
},
plugins: ["karma-spec-reporter"],
...
If you're not using Karma, then you need to find the proper Jasmine reporter and configure it, or create your own reporter.
https://www.npmjs.com/package/jasmine2-reporter
If you're using the mocha reporter:
reporters: ['mocha'],
mochaReporter: {
ignoreSkipped: true,
},

Mimosa karma configuration

Using mimosa I am trying to set the https://github.com/karma-runner/karma-ng-html2js-preprocessor in karma.conf.js using ...
files = [
JASMINE,
JASMINE_ADAPTER,
...
{pattern: "source/apps/common/partials/*.html", included: true}
]
preprocessors = {
"**/*.html": "ng-html2js"
};
But I get .. Pre-processor "Ng-html2js" is not registered
I notice in ...
\node_modules\mimosa-karma\node_modules\karma\lib\preprocessors
That there are only 4 preprocessors listed and the one I want is not there.
Does anyone know how I would get mimosa-karma to recognise this pre-processor?
Thanks
I'm not a karma person I'm afraid, but it looks like the mimosa-karma-enterprise module, a fork of mimosa-karma, includes that preprocessor?
https://github.com/dretay/mimosa-karma

How do I run only certain tests in karma?

I have karma config set up correctly, config file, running in the background, just great. As soon as I change and save a file, it reruns the tests.... all 750 of the unit tests. I want to be able to run just a few. Short of manually hacking the config file or commenting out hundreds of tests across many files, is there any easy way to do it?
E.g. when running command line server tests using say mocha, I just use regexp: mocha -g 'only tests that I want'. Makes it much easier to debug and quickly check.
So now I feel foolish. mocha supports a very narrow version of regexp matching.
This runs all tests
describe('all tests',function(){
describe('first tests',function(){
});
describe('second tests',function(){
});
});
This runs just 'first tests'
describe('all tests',function(){
describe.only('first tests',function(){
});
describe('second tests',function(){
});
});
You can also do it.only()
I should have noticed that. Sigh.
You can do that at karma startup time unfortunately, not at runtime.
If you want to change it dynamically you have to put some more effort.
Say you want to focus on a specific set/suite of tests from the beginning, on the karma-mocha plugin page there's this snippet of code to do what you want:
module.exports = function(config) {
config.set({
// karma configuration here
...
// this is a mocha configuration object
client: {
// The pattern string will be passed to mocha
args: ['--grep', '<pattern>'],
...
}
});
};
In order to make the <pattern> parametric you have to wrap the configuration file in a Configurator that will listen CLI and customize the karma configuration for you.
Have a look to this SO answer to know how to setup a very simple Configurator.
I have same question and this is my workround by a little change on karma.conf.js.
In fact, take an argument from command line and modify the pattern in "files".
I use minimist to parse the argument list.
In config file:
/* Begin */
var minimist = require('minimist');
var argv = minimist(process.argv);
var testBase="test/unit";
var testExt=".spec.js";
var unitTestPattern = testBase+'/**/*'+testExt;
if ("test" in argv){
unitTestPattern = testBase+"/"+argv["test"]+testExt;
}
/* End */
module.exports = function(config){
config.set({
//....
files : [
//....
unitTestPattern, //place here
// 'test/unit/**/*.spec.js', //replace this
//....
],
//....
});
};
run in command prompt:
karma start test/karma.conf.js --single-run --test #TEST_CASE_FILE#
a nice extension that can help here is karma-jasmine-html-reporter-livereload
https://www.npmjs.com/package/karma-jasmine-html-reporter-livereload
or karma-jasmine-html-reporter https://www.npmjs.com/package/karma-jasmine-html-reporter?__hstc=72727564.86845f057bb4d741f59d578059e30644.1443860954685.1453095135802.1453138187458.37&__hssc=72727564.1.1453138187458&__hsfp=2285154675
It creates a debug page in which you can run each test individually. very useful for large projects!
1) In your karma.conf.js get the params from the terminal:
var files = (process.env.npm_config_single_file) ? process.env.npm_config_single_file : 'test/test_index.js';
2) In order to run a single test you will need to set an option object with all your configuration (Without files and preprocessors):
var option = {
webpack: {
// webpack configuration
},
// more configuration......
};
3) Set your files path and preprocessors:
option.files = [
{pattern: files, watch: false}
];
option.preprocessors = {};
option.preprocessors[files] = [ 'webpack', 'sourcemap' ];
// call config.set function
config.set(option);
4) Run in the terminal:
npm test --single_file=**/my-specific-file-spec.js
For more information check this PR:
https://github.com/webpack/karma-webpack/pull/178
There are different ways to do it.
Use --grep option. The disadvantage of this is that all the tests are preprocessed before running the specific test suite.
Use .only method. Disadvantage same as no. 1. Using both 1 and 2 method my node process used to crash often saying out of memory.
Limit the files options for processing. This is super fast.
Limit preprocessing to certain folder like Unit or Integration folder.
For this I have used custom cli option --only and in the karma config
const modules = config.only;
and in the the files pattern
files: typeof modules === 'string ? '[`tests/**/${module}/**/*.(test|spec).js`]: 'tests/**/*.(test|spec).js'
Advantage: Developers can run only certain tests when they make a small change way faster by limiting in the preprocessing phase.
You can also use combination of no.3 and no.1 or 2.