testing

client/src/app/modules/system/system.component.spec.ts

@@ -1,23 +1,54 @@
-import { ComponentFixture, TestBed } from '@angular/core/testing';
-
+import { TestBed } from '@angular/core/testing';
 import { SystemComponent } from './system.component';
+import { ApiService } from '../../shared/api.service';
+import { GridReadyEvent } from 'ag-grid-community';
+import { of } from 'rxjs';
 
-describe('SystemComponent', () => {
+describe('SystemcomponentComponent', () => {
   let component: SystemComponent;
-  let fixture: ComponentFixture<SystemComponent>;
+  let mockApiService: MockApiService;
 
   beforeEach(async () => {
+    mockApiService = new MockApiService();
     await TestBed.configureTestingModule({
-      imports: [SystemComponent]
-    })
-    .compileComponents();
-
-    fixture = TestBed.createComponent(SystemComponent);
+      imports: [SystemComponent],
+      providers: [
+        { provide: ApiService, useValue: mockApiService }
+      ]
+    }).compileComponents();
+    const fixture = TestBed.createComponent(SystemComponent);
     component = fixture.componentInstance;
     fixture.detectChanges();
   });
 
-  it('should create', () => {
+  it('should create the SystemComponent', () => {
     expect(component).toBeTruthy();
   });
+
+
+  it('should initialize gridApi and gridColumnApi on gridReady and fill data', () => {
+    // Mock des GridReadyEvent
+    let mockData = [{ id: 1, name: 'Test' }];
+    mockApiService.getSystems.mockReturnValue(of(mockData));
+    const mockGridReadyEvent: GridReadyEvent = {
+      api: { setGridOption: jest.fn() },
+      columnApi: { someColumnApiMethod: jest.fn() },
+      type: 'gridReady',
+    } as any;
+
+    // Methode aufrufen
+    component.onGridReady(mockGridReadyEvent);
+
+    // Assertions
+    expect(component.gridApi).toBe(mockGridReadyEvent.api);
+    expect(mockApiService.getSystems).toHaveBeenCalled();
+    expect(component.gridApi.setGridOption).toHaveBeenCalled();
+  });
+
+  
 });
+
+
+class MockApiService {
+  getSystems = jest.fn();
+}