karma-test-shim.js

// Turn on full stack traces in errors to help debugging
Error.stackTraceLimit=Infinity;


jasmine.DEFAULT_TIMEOUT_INTERVAL = 1000;

// // Cancel Karma's synchronous start,
// // we will call `__karma__.start()` later, once all the specs are loaded.
__karma__.loaded = function() {};


System.config({
    packages: {
        'dist': {
            defaultExtension: false,
            format: 'register',
            map: Object.keys(window.__karma__.files).
            filter(onlyAppFiles).
            reduce(function createPathRecords(pathsMapping, appPath) {

                // creates local module name mapping to global path with karma's fingerprint in path, e.g.:
                // './hero.service': '/base/src/app/hero.service.js?f4523daf879cfb7310ef6242682ccf10b2041b3e'
                var moduleName = appPath.replace(/^\/base\/app\//, './').replace(/\.js$/, '');
                pathsMapping[moduleName] = appPath + '?' + window.__karma__.files[appPath]
                return pathsMapping;
            }, {})

        }
    }
});

System.import('angular2/src/platform/browser/browser_adapter').then(function(browser_adapter) {
    browser_adapter.BrowserDomAdapter.makeCurrent();
}).then(function() {
        return Promise.all(
            Object.keys(window.__karma__.files) // All files served by Karma.
                .filter(onlySpecFiles)
                // .map(filePath2moduleName)        // Normalize paths to module names.
                .map(function(moduleName) {
                    // loads all spec files via their global module names (e.g. 'base/src/app/hero.service.spec')
                    return System.import(moduleName);
                }));
    })
    .then(function() {
        __karma__.start();
    }, function(error) {
        __karma__.error(error.stack || error);
    });


function filePath2moduleName(filePath) {
    return filePath.
    replace(/^\//, '').              // remove / prefix
    replace(/\.\w+$/, '');           // remove suffix
}


function onlyAppFiles(filePath) {
    return /\/base\/app\/(?!.*\.spec\.js$).*\.js$/.test(filePath);
}


function onlySpecFiles(path) {
    return /spec\.js$/.test(path);
}