diff --git a/src/frontend/test.ts b/src/frontend/test.ts
new file mode 100644
index 00000000..ece343b9
--- /dev/null
+++ b/src/frontend/test.ts
@@ -0,0 +1,30 @@
+// This file is required by karma.conf.js and loads recursively all the .spec and framework files
+
+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';
+
+// Unfortunately there's no typing for the `__karma__` variable. Just declare it as any.
+declare const __karma__: any;
+declare const require: any;
+
+// Prevent Karma from running prematurely.
+__karma__.loaded = function () {
+};
+
+// First, initialize the Angular testing environment.
+getTestBed().initTestEnvironment(
+  BrowserDynamicTestingModule,
+  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();