fix(karma): update karma test setup

closes TrilonIO#38

Still need to implement real tests

Author: MarkPieszak

Client/karma-tests.ts

@@ -0,0 +1,32 @@
+// Load required polyfills and testing libraries
+import 'angular2-universal-polyfills';
+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 * as testing from '@angular/core/testing';
+import * as testingBrowser from '@angular/platform-browser-dynamic/testing';
+
+// 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 () {};
+
+// First, initialize the Angular testing environment
+testing.getTestBed().initTestEnvironment(
+    testingBrowser.BrowserDynamicTestingModule,
+    testingBrowser.platformBrowserDynamicTesting()
+);
+
+// Then we find all the tests
+const context = require.context('./', true, /\.spec\.ts$/);
+
+// And load the modules
+context.keys().map(context);
+
+// Finally, start Karma to run the tests
+__karma__.start();

karma.conf.js

@@ -0,0 +1,26 @@
+// Karma configuration file, see link for more information
+// https://karma-runner.github.io/0.13/config/configuration-file.html
+
+module.exports = function (config) {
+    config.set({
+        basePath: '.',
+        frameworks: ['jasmine'],
+        files: [
+            './wwwroot/dist/vendor.js',
+            './Client/karma-tests.ts'
+        ],
+        preprocessors: {
+            './Client/karma-tests.ts': ['webpack']
+        },
+        reporters: ['progress'],
+        port: 9876,
+        colors: true,
+        logLevel: config.LOG_INFO,
+        autoWatch: true,
+        browsers: ['Chrome'],
+        mime: { 'application/javascript': ['ts','tsx'] },
+        singleRun: false,
+        webpack: require('./webpack.config.js'),// .filter(config => config.target !== 'node'), // Test against client bundle, because tests run in a browser
+        webpackMiddleware: { stats: 'errors-only' }
+    });
+};