feat(test): add testing infrastructure: karma, jasmine and chrome (#982)

config/spec-bundle.js

@@ -0,0 +1,55 @@
+/*
+ * When testing with webpack and ES6, we have to do some extra
+ * things to get testing to work right. Because we are gonna write tests
+ * in ES6 too, we have to compile those as well. That's handled in
+ * karma.conf.js with the karma-webpack plugin. This is the entry
+ * file for webpack test. Just like webpack will create a bundle.js
+ * file for our client, when we run test, it will compile and bundle them
+ * all here! Crazy huh. So we need to do some setup
+ */
+Error.stackTraceLimit = Infinity;
+
+require('core-js/es6');
+require('core-js/es7/reflect');
+
+require('zone.js/dist/zone');
+require('zone.js/dist/long-stack-trace-zone');
+require('zone.js/dist/proxy'); // since zone.js 0.6.15
+require('zone.js/dist/sync-test');
+require('zone.js/dist/jasmine-patch'); // put here since zone.js 0.6.14
+require('zone.js/dist/async-test');
+require('zone.js/dist/fake-async-test');
+
+// RxJS
+require('rxjs/Rx');
+
+var testing = require('@angular/core/testing');
+var browser = require('@angular/platform-browser-dynamic/testing');
+
+testing.TestBed.initTestEnvironment(
+  browser.BrowserDynamicTestingModule,
+  browser.platformBrowserDynamicTesting()
+);
+
+/*
+ * Ok, this is kinda crazy. We can use the context method on
+ * require that webpack created in order to tell webpack
+ * what files we actually want to require or import.
+ * Below, context will be a function/object with file names as keys.
+ * Using that regex we are saying look in ../src then find
+ * any file that ends with spec.ts and get its path. By passing in true
+ * we say do this recursively
+ */
+var testContext = require.context('../src', true, /\.spec\.ts/);
+
+/*
+ * get all the files, for each file, call the context function
+ * that will require the file and load it up here. Context will
+ * loop and require those spec files here
+ */
+function requireAll(requireContext) {
+  return requireContext.keys().map(requireContext);
+}
+
+// requires and returns all modules that match
+var modules = requireAll(testContext);