Added a first simple test.

That serves as a proof-of-concept and as a template for future tests.
It's a start!

src/app/app.component.spec.ts

@@ -0,0 +1,16 @@
+import {TestBed} from "@angular/core/testing";
+import {AppComponent} from "./app.component";
+import {FormsModule} from "@angular/forms";
+
+describe('App', () => {
+    beforeEach(() => {
+        TestBed.configureTestingModule({
+            declarations: [AppComponent],
+            imports: [FormsModule]
+        });
+    });
+    it('should work', () => {
+        let fixture = TestBed.createComponent(AppComponent);
+        expect(fixture.componentInstance instanceof AppComponent).toBe(true, 'should create AppComponent');
+    });
+});

src/app/app.component.ts

@@ -4,7 +4,6 @@ import {InputComponentManagerService} from "./inputcomponentmanager.service";
 import {Converter} from "./converter/converter";
 import {NativeLibraryWrapperService} from "./nativelibrarywrapper.service";
 import {Step} from "./step";
-
 import "../assets/css/style.css";
 
 @Component({