How to test router.url in Angular/Jasmine app

import { ChangeDetectionStrategy, Component } from "@angular/core";
import { SplashScreen } from "@ionic-native/splash-screen/ngx";
import { StatusBar } from "@ionic-native/status-bar/ngx";
import { Platform } from "@ionic/angular";
import { Router } from "@angular/router";

@Component({
  selector: "app-root",
  templateUrl: "app.component.html",
  styleUrls: ["app.component.scss"],
  changeDetection: ChangeDetectionStrategy.OnPush,
})
export class AppComponent {
  private TAB_ITEMS = [
    { url: "/tabs/1" },
    { url: "/tabs/2" },
    { url: "/tabs/3" },
  ];
  constructor(
    private platform: Platform,
    private splashScreen: SplashScreen,
    private statusBar: StatusBar,
    private router: Router
  ) {
    this.initializeApp();
  }

  initializeApp(): void {
    this.platform.ready().then(() => {
      this.statusBar.styleDefault();
      this.splashScreen.hide();
    });
  }

  get showMenu(): boolean {
    return !this.TAB_ITEMS.some((item) => this.router.url === item.url);
  }
}

import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
import { TestBed, waitForAsync } from '@angular/core/testing';
import { SplashScreen } from '@ionic-native/splash-screen/ngx';
import { StatusBar } from '@ionic-native/status-bar/ngx';
import { Platform } from '@ionic/angular';

import { AppComponent } from './app.component';
import { RouterTestingModule } from '@angular/router/testing';
import { Router } from '@angular/router';

describe('AppComponent', () => {
  let statusBarSpy: jasmine.SpyObj<StatusBar>;
  let splashScreenSpy: jasmine.SpyObj<SplashScreen>;
  let platformReadySpy: Promise<void>;
  let platformSpy: jasmine.SpyObj<Platform>;
  let router: Router;

  beforeEach(waitForAsync(() => {
    statusBarSpy = jasmine.createSpyObj('StatusBar', ['styleDefault']);
    splashScreenSpy = jasmine.createSpyObj('SplashScreen', ['hide']);
    platformReadySpy = Promise.resolve();
    platformSpy = jasmine.createSpyObj('Platform', { ready: platformReadySpy });

    TestBed.configureTestingModule({
      imports: [RouterTestingModule],
      declarations: [AppComponent],
      schemas: [CUSTOM_ELEMENTS_SCHEMA],
      providers: [
        { provide: StatusBar, useValue: statusBarSpy },
        { provide: SplashScreen, useValue: splashScreenSpy },
        { provide: Platform, useValue: platformSpy },
      ],
    }).compileComponents();
    router = TestBed.inject(Router);
  }));

  it('should create the app', () => {
    const fixture = TestBed.createComponent(AppComponent);
    const app = fixture.debugElement.componentInstance;

    expect(app).toBeTruthy();
  });

  it('should initialize the app', async () => {
    TestBed.createComponent(AppComponent);

    expect(platformSpy.ready).toHaveBeenCalledWith();
    await platformReadySpy;

    expect(statusBarSpy.styleDefault).toHaveBeenCalledWith();
    expect(splashScreenSpy.hide).toHaveBeenCalledWith();
  });

  it('should show menu be false', () => {
    const component = TestBed.createComponent(AppComponent);
    spyOnProperty(router, 'url', 'get').and.returnValue('/tabs/1');

    expect(component.componentInstance.showMenu).toBeFalse();
  });

  it('should show menu be true', () => {
    const component = TestBed.createComponent(AppComponent);
    spyOnProperty(router, 'url', 'get').and.returnValue('/some-page');

    expect(component.componentInstance.showMenu).toBeTruthy();
  });
});