feat(package): upgrade to ng v2.3+ (#574)

scripts/test.ts

@@ -0,0 +1,37 @@
+import '../demo/src/polyfills.ts';
+
+import 'zone.js/dist/long-stack-trace-zone';
+import 'zone.js/dist/proxy.js';
+import 'zone.js/dist/sync-test';
+import 'zone.js/dist/jasmine-patch';
+import 'zone.js/dist/async-test';
+import 'zone.js/dist/fake-async-test';
+import { getTestBed } from '@angular/core/testing';
+import {
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting
+} from '@angular/platform-browser-dynamic/testing';
+
+import './matchers';
+
+// Unfortunately there's no typing for the `__karma__` variable. Just declare it as any.
+declare var __karma__: any;
+declare var require: any;
+
+// Prevent Karma from running prematurely.
+__karma__.loaded = Function.prototype;
+
+// First, initialize the Angular testing environment.
+getTestBed().initTestEnvironment(
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting()
+);
+// Then we find all the tests.
+let context = require.context('../demo/src', true, /\.spec\.ts/);
+// And load the modules.
+context.keys().map(context);
+
+let context2 = require.context('../src/spec', true, /\.spec\.ts/);
+context2.keys().map(context2);
+// Finally, start Karma to run the tests.
+__karma__.start();