ng2-tree-hackaday/test/menu/node-menu.service.spec.ts

angular2 component for visualizing data that can be naturally represented as a tree

import { TestBed } from '@angular/core/testing';
import { NodeMenuService } from '../../src/menu/node-menu.service';
import { Subject } from 'rxjs/Rx';
import { ElementRef } from '@angular/core';
import { NodeMenuEvent, NodeMenuAction } from '../../src/menu/menu.events';

let nodeMenuService;

describe('NodeMenuService', () => {
  beforeEach(() => {
    TestBed.configureTestingModule({
      providers: [NodeMenuService]
    });

    nodeMenuService = TestBed.get(NodeMenuService);
  });

  it('should be created by angular', () => {
    expect(nodeMenuService).not.toBeNull();
    expect(nodeMenuService.nodeMenuEvents$ instanceof Subject).toBe(true);
  });

  it('should fire close menu events', done => {
    const elementRef = new ElementRef({});
    elementRef.nativeElement = {};

    const initiatorElementRef = new ElementRef({});
    initiatorElementRef.nativeElement = {};

    nodeMenuService.hideMenuStream(elementRef)
      .subscribe((e: NodeMenuEvent) => {
        expect(e.sender).toBe(initiatorElementRef.nativeElement);
        expect(e.action).toBe(NodeMenuAction.Close);
        done();
      });

    nodeMenuService.hideMenuForAllNodesExcept(initiatorElementRef);
  });
});