karma.shim.js

/**
 * This setup is based on Julie Ralph's `ng2-test-seed` project.
 * See https://github.com/juliemr/ng2-test-seed
 * Hopefully Angular2 and Karma integration will be more seamless in the future.
 * Unit tests are currently only implemented to run against the development target.
 */

/** Tun 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: {
		'base/.karma': {
			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/build/js/hero.service.js?f4523daf879cfb7310ef6242682ccf10b2041b3e'
					 */
					var moduleName = appPath
						.replace(/^\/base\/.karma\//, './')
						.replace(/\.js$/, '');

					pathsMapping[moduleName] = appPath + '?' + window.__karma__.files[appPath]

					return pathsMapping;
				}, {})
		}
	}
});

System.import('angular2/platform/browser').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(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 || String(error));
});

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

function onlyAppFiles(filePath) {
	return /^\/base\/.karma\/.*\.js$/.test(filePath);
}

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