store.spec.ts

const middlewares = [];
const mockStoreFactory = configureStore(middlewares);
const store = mockStoreFactory([]);
let discoverAssetsComponent: DashboardDiscoverAssetsWidgetComponent;

describe('select_actions', () => {
	beforeEach(() => {
		TestBed.configureTestingModule({
			imports: [...			],
			providers: [...			]
		}).compileComponents();
		fixture = TestBed.createComponent(DashboardDiscoverAssetsWidgetComponent);
		discoverAssetsComponent = fixture.debugElement.componentInstance;
		routerSpy = jest.spyOn(discoverAssetsComponent.router, 'navigate').mockImplementation((...args) => args);
		discoverAssetsComponent.dashboardFilters = MOCK_DASHBOARD_FILTERS;
		store.clearActions();
	});
	// action test
	it('Dispatches the correct action and payload', () => {
		const eventValue = {value: 2, name: 'Section 2'};
		discoverAssetsComponent.onChartClicked(eventValue);
		// so easy to get mock store actions
		const action = store.getActions()[0];
		// test actions values
		expect(action.payload.filters.length).toEqual(2); // should be 2 filters
		expect(action.payload.filters.filter(param => param.lookup === 'gte').length).toEqual(1);
		expect(action.payload.filters.filter(param => param.fieldName === 'class_type').length).toEqual(1);
		// test navigation to the right page
		expect(routerSpy).toHaveBeenCalledWith(['/the-new-page']);
	});
});