src/app/standby-schedule/dialogs/calculate-dialog/calculate-dialog.component.spec.ts

/********************************************************************************
 * Copyright © 2018 Mettenmeier GmbH.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 ********************************************************************************/
import { async, ComponentFixture, TestBed } from '@angular/core/testing';

import { NgbModule, NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';

import { CalculateDialogComponent } from './calculate-dialog.component';
import { SharedModule } from '@shared/shared.module';
import { ModalTransferObject } from '@shared/model/ModalTransferObject';

describe('CalculateDialogComponent', () => {
  let component: CalculateDialogComponent;
  let fixture: ComponentFixture<CalculateDialogComponent>;

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [CalculateDialogComponent],
      imports: [
        NgbModule.forRoot(),
        SharedModule
      ],
      providers: [
        NgbActiveModal
      ]
    })
      .compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(CalculateDialogComponent);
    component = fixture.componentInstance;
    component.form.patchValue({ standbyGroupId: 1 });
    fixture.detectChanges();
  });

  it('should create', () => {
    expect(component).toBeTruthy();
  });

  it('should send calculation data to parent component if the form is valid', () => {
    component.form.patchValue({ validFrom: '2023-05-08T05:05:05.789Z', validTo: '2023-05-08T05:05:05.789Z' });
    component.calculate();
    component.modalAction.subscribe((transferData: ModalTransferObject) => {
      expect(transferData.action).toBe('calculate');
    });
  });

  describe('setDefaultDate', () => {
    it('should set validFrom to current day', () => {
      const date = new Date();
      component.setDefaultDate('validFrom');
      expect(component.form.controls.validFrom.value).toEqual({
        day: date.getDate(), month: date.getMonth() + 1, year: date.getFullYear()
      });
    });

    it('should set validTo to current day + 15 years', () => {
      const date = new Date();
      component.setDefaultDate('validTo');
      expect(component.form.controls.validTo.value).toEqual({
        day: date.getDate(), month: date.getMonth() + 1, year: date.getFullYear() + 15
      });
    });
  });

  describe('calculate()', () => {
    it('should calculate if form is valid', () => {
      component.setDefaultDate('validFrom');
      component.setDefaultDate('validTo');
      component.form.patchValue({ startIdOfUser: 1 });
      component.calculate();
    });

    it('shouldn´t calculate if form is invalid', () => {
      component.form.patchValue({ startIdOfUser: '' });
      component.calculate();
    });
  });
});