fix: Fixed test units

src/app/admin-view/grades/grades.component.spec.ts

@@ -1,14 +1,55 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
 import { GradesComponent } from './grades.component';
+import { AdminCommService } from '../admin-comm.service';
+import { RouterModule } from '@angular/router';
+import { Component, EventEmitter, Input, Output } from '@angular/core';
+import * as moment from 'moment';
+import { MatIconModule } from '@angular/material/icon';
+import { MatFormFieldModule } from '@angular/material/form-field';
+import { of } from 'rxjs';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { MatInputModule } from '@angular/material/input';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+
+@Component({selector: "app-date-selector", template: ''})
+class DateSelectorStub {
+    @Input() date: moment.Moment = moment.utc().startOf('day');
+    @Output() dateChange = new EventEmitter<moment.Moment>();
+    @Input() filter: (date: moment.Moment | null) => boolean = () => true
+}
+
+@Component({selector: "app-room-chooser", template: ''})
+class RoomSelectorStub {
+  @Input() rooms: string[] = []
+  @Output() room: EventEmitter<string> = new EventEmitter<string>();
+}
 
 describe('GradesComponent', () => {
   let component: GradesComponent;
   let fixture: ComponentFixture<GradesComponent>;
+  let acMock
 
   beforeEach(async () => {
+    acMock = {
+      clean: {
+        getConfig: jasmine.createSpy("getConfig").and.returnValue(of())
+      }
+    }
     await TestBed.configureTestingModule({
-      imports: [GradesComponent]
+      declarations: [GradesComponent, DateSelectorStub, RoomSelectorStub],
+      providers: [
+        {provide: AdminCommService, useValue: acMock}
+      ],
+      imports: [
+        RouterModule.forRoot([]),
+        MatIconModule,
+        MatFormFieldModule,
+        FormsModule,
+        ReactiveFormsModule,
+        MatInputModule,
+        NoopAnimationsModule
+      ]
     })
     .compileComponents();