clr-angular-static-fix/forms/common/if-error/if-error.service.spec.ts

1. Install Clarity Icons package through npm:

/*
 * Copyright (c) 2016-2018 VMware, Inc. All Rights Reserved.
 * This software is released under MIT license.
 * The full license information can be found in LICENSE in the root directory of this project.
 */
import { FormControl } from '@angular/forms';

import { NgControlService } from '../providers/ng-control.service';

import { IfErrorService } from './if-error.service';

export default function(): void {
  describe('IfErrorService', function() {
    let service, ngControlService, testControl;

    beforeEach(() => {
      testControl = new FormControl(true);
      ngControlService = new NgControlService();
      service = new IfErrorService(ngControlService);
    });

    it('subscribes to the statusChanges when the control is emitted', () => {
      spyOn(testControl.statusChanges, 'subscribe').and.callThrough();
      ngControlService.setControl(testControl);
      expect(testControl.statusChanges.subscribe).toHaveBeenCalled();
    });

    it('provides observable for statusChanges, passing the control', () => {
      const cb = jasmine.createSpy('cb');
      const sub = service.statusChanges.subscribe(control => cb(control));
      ngControlService.setControl(testControl);
      // Change the state of the input to trigger statusChange
      testControl.markAsTouched();
      testControl.updateValueAndValidity();
      expect(cb).toHaveBeenCalled();
      expect(cb).toHaveBeenCalledWith(testControl);
      sub.unsubscribe();
    });

    it('should allow a manual trigger of status observable', () => {
      const cb = jasmine.createSpy('cb');
      const sub = service.statusChanges.subscribe(control => cb(control));
      ngControlService.setControl(testControl);
      // Manually trigger status check
      service.triggerStatusChange();
      expect(cb).toHaveBeenCalled();
      expect(cb).toHaveBeenCalledWith(testControl);
      sub.unsubscribe();
    });

    it('should not fire status changes if control is untouched', () => {
      const cb = jasmine.createSpy('cb');
      const sub = service.statusChanges.subscribe(control => cb(control));
      ngControlService.setControl(testControl);
      // Change state of the input, should only fire when touched
      testControl.markAsDirty();
      testControl.updateValueAndValidity();
      expect(cb).not.toHaveBeenCalled();
      sub.unsubscribe();
    });
  });
}