diff --git a/src/app/app.component.spec.ts b/src/app/app.component.spec.ts
index 18d20b6..1a66e4e 100644
--- a/src/app/app.component.spec.ts
+++ b/src/app/app.component.spec.ts
@@ -1,26 +1,17 @@
 import {AppComponent} from './app.component';
 import {async, ComponentFixture, TestBed} from '@angular/core/testing';
 import {FormsModule} from '@angular/forms';
-import {InputComponentManagerService} from './input-component-manager.service';
 import {Step} from './step';
 import {VersionComponent} from './version/version.component';
 import {ConverterSelectorComponent} from './converter-selector/converter-selector.component';
 import {TextInputFieldComponent} from './text-input-field/text-input-field.component';
 import {ErrorMessageComponent} from './error-message/error-message.component';
-import createSpyObj = jasmine.createSpyObj;
 
 describe('AppComponent', () => {
   let sut: AppComponent;
   let fixture: ComponentFixture<AppComponent>;
   const firstStep: Step = new Step(0);
 
-  const inputComponentManagerServiceStub = createSpyObj(['getFirst']);
-  inputComponentManagerServiceStub.getFirst.and.returnValue(firstStep);
-
-  const converterRegistryServiceStub = createSpyObj(['getAllConverters', 'getConverter']);
-  converterRegistryServiceStub.getAllConverters.and.returnValue([]);
-  converterRegistryServiceStub.getConverter.and.returnValue(undefined);
-
   beforeEach(async(() => {
     TestBed.configureTestingModule({
       declarations: [
@@ -30,10 +21,7 @@ describe('AppComponent', () => {
         TextInputFieldComponent,
         VersionComponent
       ],
-      imports: [FormsModule],
-      providers: [
-        {provide: InputComponentManagerService, useValue: inputComponentManagerServiceStub}
-      ]
+      imports: [FormsModule]
     })
       .compileComponents();
   }));