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import { NgZone } from '@angular/core';
import { fakeAsync, TestBed, tick } from '@angular/core/testing';
import { configureTestBed } from '~/testing/unit-test-helper';
import { RefreshIntervalService } from './refresh-interval.service';
describe('RefreshIntervalService', () => {
let service: RefreshIntervalService;
configureTestBed({
providers: [RefreshIntervalService]
});
beforeEach(() => {
service = TestBed.inject(RefreshIntervalService);
});
it('should be created', () => {
expect(service).toBeTruthy();
});
it('should initial private interval time right', () => {
sessionStorage.setItem('dashboard_interval', '10000');
const ngZone = TestBed.inject(NgZone);
service = new RefreshIntervalService(ngZone);
expect(service.getRefreshInterval()).toBe(10000);
});
describe('setRefreshInterval', () => {
let notifyCount: number;
it('should send notification to component at correct interval time when interval changed', fakeAsync(() => {
service.intervalData$.subscribe(() => {
notifyCount++;
});
notifyCount = 0;
service.setRefreshInterval(10000);
tick(10000);
expect(service.getRefreshInterval()).toBe(10000);
expect(notifyCount).toBe(1);
notifyCount = 0;
service.setRefreshInterval(30000);
tick(30000);
expect(service.getRefreshInterval()).toBe(30000);
expect(notifyCount).toBe(1);
service.ngOnDestroy();
}));
});
});
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