a) È possibile passare un modello che descrive il singolo file da riga di comando argomento del comando di avvio del karma:
# build and run all tests
$ karma start
# build and run only those tests that are in this dir
$ karma start --grep app/modules/sidebar/tests
# build and run only this test file
$ karma start --grep app/modules/sidebar/tests/animation_test.js
Fonte: https://gist.github.com/KidkArolis/fd5c0da60a5b748d54b2
b) è possibile utilizzare un Gulp (o Grunt ect.) compito che avvia Karma per te. Questo ti dà più flessibilità su come eseguire il Karma. Ad esempio, è possibile passare argomenti personalizzati della riga di comando a tali attività. Questa strategia è utile anche se si desidera implementare una modalità di visualizzazione che esegue solo i test modificati. (La modalità di controllo Karma eseguirà tutti i test.) Un altro caso d'uso sarebbe di eseguire solo i test per i file con modifiche locali prima di eseguire un commit. Vedere anche esempi di Gulp di seguito.
c) Se si utilizza VisualStudio, è possibile aggiungere un comando di strumento esterno al menu di scelta rapida di Solution Explorer. In questo modo, puoi avviare il test da quel menu contestuale invece di usare la console.Vedere anche il file
How to execute custom file specific command/task in Visual Studio?
Esempio Gulp
//This gulp file is used to execute the Karma test runner
//Several tasks are available, providing different work flows
//for using Karma.
var gulp = require('gulp');
var karma = require('karma');
var KarmaServerConstructor = karma.Server;
var karmaStopper = karma.stopper;
var watch = require('gulp-watch');
var commandLineArguments = require('yargs').argv;
var svn = require('gulp-svn');
var exec = require('child_process').exec;
var fs = require('fs');
//Executes all tests, based on the specifications in karma.conf.js
//Example usage: gulp all
gulp.task('all', function (done) {
var karmaOptions = { configFile: __dirname + '/karma.conf.js' };
var karmaServer = new KarmaServerConstructor(karmaOptions, done);
karmaServer.on('browsers_change', stopServerIfAllBrowsersAreClosed); //for a full list of events see http://karma-runner.github.io/1.0/dev/public-api.html
karmaServer.start();
});
//Executes only one test which has to be passed as command line argument --filePath
//The option --browser also has to be passed as command line argument.
//Example usage: gulp single --browser="Chrome_With_Saved_DevTools_Settings" --filePath="C:\myTest.spec.js"
gulp.task('single', function (done) {
var filePath = commandLineArguments.filePath.replace(/\\/g, "/");
var karmaOptions = {
configFile: __dirname + '/karma.conf.js',
action: 'start',
browsers: [commandLineArguments.browser],
files: [
'./Leen.Managementsystem/bower_components/jquery/dist/jquery.js',
'./Leen.Managementsystem/bower_components/globalize/lib/globalize.js',
{ pattern: './Leen.Managementsystem/bower_components/**/*.js', included: false },
{ pattern: './Leen.Managementsystem.Tests/App/test/mockFactory.js', included: false },
{ pattern: './Leen.Managementsystem/App/**/*.js', included: false },
{ pattern: './Leen.Managementsystem.Tests/App/test/*.js', included: false },
{ pattern: filePath, included: false },
'./Leen.Managementsystem.Tests/App/test-main.js',
'./switchKarmaToDebugTab.js' //also see https://stackoverflow.com/questions/33023535/open-karma-debug-html-page-on-startup
]
};
var karmaServer = new KarmaServerConstructor(karmaOptions, done);
karmaServer.on('browsers_change', stopServerIfAllBrowsersAreClosed);
karmaServer.start();
});
//Starts a watch mode for all *.spec.js files. Executes a test whenever it is saved with changes.
//The original Karma watch mode would execute all tests. This watch mode only executes the changed test.
//Example usage: gulp watch
gulp.task('watch', function() {
return gulp //
.watch('Leen.Managementsystem.Tests/App/**/*.spec.js', handleFileChanged)
.on('error', handleGulpError);
function handleFileChange(vinyl) {
var pathForChangedFile = "./" + vinyl.replace(/\\/g, "/");
var karmaOptions = {
configFile: __dirname + '/karma.conf.js',
action: 'start',
browsers: ['PhantomJS'],
singleRun: true,
files: [
'./Leen.Managementsystem/bower_components/jquery/dist/jquery.js',
'./Leen.Managementsystem/bower_components/globalize/lib/globalize.js',
{ pattern: './Leen.Managementsystem/bower_components/**/*.js', included: false },
{ pattern: './Leen.Managementsystem.Tests/App/test/mockFactory.js', included: false },
{ pattern: './Leen.Managementsystem/App/**/*.js', included: false },
{ pattern: './Leen.Managementsystem.Tests/App/test/*.js', included: false },
{ pattern: pathForChangedFile, included: false },
'./Leen.Managementsystem.Tests/App/test-main.js'
]
};
var karmaServer = new KarmaServerConstructor(karmaOptions);
karmaServer.start();
}
});
//Executes only tests for files that have local changes
//The option --browser has to be passed as command line arguments.
//Example usage: gulp localChanges --browser="Chrome_With_Saved_DevTools_Settings"
gulp.task('localChanges', function (done) {
exec('svn status -u --quiet --xml', handleSvnStatusOutput);
function handleSvnStatusOutput(error, stdout, stderr) {
if (error) {
throw error;
}
var changedJsFiles = getJavaScriptFiles(stdout);
var specFiles = getSpecFiles(changedJsFiles);
if(specFiles.length>0){
console.log('--- Following tests need to be executed for changed files: ---');
specFiles.forEach(function (file) {
console.log(file);
});
console.log('--------------------------------------------------------------');
} else{
console.log('Finsihed: No modified files need to be tested.');
return;
}
var files = [
'./Leen.Managementsystem/bower_components/jquery/dist/jquery.js',
'./Leen.Managementsystem/bower_components/globalize/lib/globalize.js',
{ pattern: './Leen.Managementsystem/bower_components/**/*.js', included: false },
{ pattern: './Leen.Managementsystem.Tests/App/test/mockFactory.js', included: false },
{ pattern: './Leen.Managementsystem/App/**/*.js', included: false },
{ pattern: './Leen.Managementsystem.Tests/App/test/*.js', included: false }];
specFiles.forEach(function (file) {
var pathForChangedFile = "./" + file.replace(/\\/g, "/");
files = files.concat([{ pattern: pathForChangedFile, included: false }]);
});
files = files.concat([ //
'./Leen.Managementsystem.Tests/App/test-main.js', //
'./switchKarmaToDebugTab.js'
]);
var karmaOptions = {
configFile: __dirname + '/karma.conf.js',
action: 'start',
singleRun: false,
browsers: [commandLineArguments.browser],
files: files
};
var karmaServer = new KarmaServerConstructor(karmaOptions, done);
karmaServer.on('browsers_change', stopServerIfAllBrowsersAreClosed);
karmaServer.start();
}
});
function getJavaScriptFiles(stdout) {
var jsFiles = [];
var lines = stdout.toString().split('\n');
lines.forEach(function (line) {
if (line.includes('js">')) {
var filePath = line.substring(9, line.length - 3);
jsFiles.push(filePath);
}
});
return jsFiles;
}
function getSpecFiles(jsFiles) {
var specFiles = [];
jsFiles.forEach(function (file) {
if (file.endsWith('.spec.js')) {
specFiles.push(file);
} else {
if (file.startsWith('Leen\.Managementsystem')) {
var specFile = file.replace('Leen\.Managementsystem\\', 'Leen.Managementsystem.Tests\\').replace('\.js', '.spec.js');
if (fs.existsSync(specFile)) {
specFiles.push(specFile);
} else {
console.error('Missing test: ' + specFile);
}
}
}
});
return specFiles;
}
function stopServerIfAllBrowsersAreClosed(browsers) {
if (browsers.length === 0) {
karmaStopper.stop();
}
}
function handleGulpError(error) {
errore tiro; }
impostazioni di esempio per ExternalToolCommand in VisualStudio:
Titolo: Run Karma usando Chrome
comando: cmd.exe
Argomenti:/c sorso singolo --browser =" Chrome_With_Saved_DevTools_Settings "--filePath = $ (ItemPath)
Directory iniziale: $ (SolutionDir)
Usa finestra di output: true
Se si utilizza il gelsomino è possibile utilizzare ddescribe/IIT. –
Problema relativo al karma: https://github.com/karma-runner/karma/issues/1507#issuecomment-320383049 – Stefan