Notes

import { TestBed, ComponentFixture } from '@angular/core/testing';
import { DebugElement, Component } from '@angular/core';
import { By } from '@angular/platform-browser';
import { RpsImpersonationDirective } from './rps-impersonation.directive';
import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';
import { RouterTestingModule } from '@angular/router/testing';

class MockWindow {
public location = { href: '' };
}

@Component({
selector: 'spec-impersonation-host',
template: `<a rpsImpersonationDirective>test</a>`
})
class TestRpsImpersonationComponent {}

describe('RpsImpersonationDirective', () => {
let component: TestRpsImpersonationComponent;
let fixture: ComponentFixture<TestRpsImpersonationComponent>;
let inputEl: DebugElement;
let httpMock: HttpTestingController;
let directiveInstance: RpsImpersonationDirective;

beforeEach(async () => {
await TestBed.configureTestingModule({
imports: [RouterTestingModule.withRoutes([]), HttpClientTestingModule],
declarations: [RpsImpersonationDirective, TestRpsImpersonationComponent]
}).compileComponents();

fixture = TestBed.createComponent(TestRpsImpersonationComponent);
component = fixture.componentInstance; // <-- set component
fixture.detectChanges();

inputEl = fixture.debugElement.query(By.css('a')); // <-- set inputEl
directiveInstance = inputEl.injector.get(RpsImpersonationDirective); // <-- instance, not prototype
httpMock = TestBed.inject(HttpTestingController);
});

afterEach(() => {
// ensure no leftover http expectations
httpMock.verify({ ignoreCancelled: true });
});

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

it('should call sponsor when sponsor logout clicked', () => {
const sponsorSpy = spyOn(directiveInstance as any, 'sponsorLogout').and.callThrough();
const e = jasmine.createSpyObj('e', ['preventDefault']);

directiveInstance.linkId = 'sponsorLogout';
directiveInstance.url = '';

inputEl.triggerEventHandler('click', e);

expect(sponsorSpy).toHaveBeenCalled();
});

it('should call participant impersonation logout when participant logout is clicked', () => {
const partSpy = spyOn(directiveInstance as any, 'partImpersonationLogout').and.callThrough();
const sponsorSpy = spyOn(directiveInstance as any, 'sponsorLogout');
// use the real method name casing from the directive:
const clearParticipantSessionSpy = spyOn(directiveInstance as any, 'clearParticipantSession').and.stub();

const e = jasmine.createSpyObj('e', ['preventDefault']);
spyOn(directiveInstance as any, 'getParentWindow').and.returnValue(window);

directiveInstance.linkId = 'partImpersonationLogout';
directiveInstance.url = 'test';

inputEl.triggerEventHandler('click', e);

expect(partSpy).toHaveBeenCalled();
expect(sponsorSpy).not.toHaveBeenCalled();
expect(clearParticipantSessionSpy).toHaveBeenCalled();
});

it('should call sponsor logout and on SUCCESS clear session then set parent window href and close', () => {
const mockWindow = new MockWindow();
const ptpLogoutUrl = '/Net2/Stateless/ParticipantLogout.aspx/ClearParticipantSession';

directiveInstance.linkId = 'sponsorLogout';
directiveInstance.url = 'http://test.schwab.com';

spyOn(directiveInstance as any, 'getParentWindow').and.returnValue(mockWindow);
const windowCloseSpy = spyOn(window, 'close');

const e = jasmine.createSpyObj('e', ['preventDefault']);
inputEl.triggerEventHandler('click', e);

const req = httpMock.expectOne(ptpLogoutUrl);
expect(req.request.method).toBe('GET');
req.flush(''); // success

expect(mockWindow.location.href).toBe('http://test.schwab.com');
expect(windowCloseSpy).toHaveBeenCalled();
});

it('should call sponsor logout and on FAILURE still set parent window href and close', () => {
const mockWindow = new MockWindow();
const ptpLogoutUrl = '/Net2/Stateless/ParticipantLogout.aspx/ClearParticipantSession';

directiveInstance.linkId = 'sponsorLogout';
directiveInstance.url = 'http://test.schwab.com';

spyOn(directiveInstance as any, 'getParentWindow').and.returnValue(mockWindow);
const windowCloseSpy = spyOn(window, 'close');

const e = jasmine.createSpyObj('e', ['preventDefault']);
inputEl.triggerEventHandler('click', e);

const req = httpMock.expectOne(ptpLogoutUrl);
expect(req.request.method).toBe('GET');
req.flush('', { status: 400, statusText: 'Bad Request' });

expect(mockWindow.location.href).toBe('http://test.schwab.com');
expect(windowCloseSpy).toHaveBeenCalled();
});
});