it('should return null when path is empty', () => {
   const g = new FormGroup({});
   expect(g.get([])).toEqual(null);
 });

 public isTouched(): boolean {
     return this.formGroup.get(this.controlName).touched;
 }

 public hasError(): boolean {
     return this.formGroup.hasError(this.validationName, [this.controlName]);
 }

 /**
  * Opens the create form.
  */
 public onPlusButton(): void {
     if (!this.projectorToCreate) {
         this.projectorToCreate = new Projector();
         this.createForm.setValue({ name: '' });
     }
 }

 const paramedic = this.paramedics.filter(paramedic => paramedic._id === this.formEmergency.get('driver').value);

 /**
  * @returns true if the description on the form differs from the poll's description
  */
 public get dirtyDescription(): boolean {
     return this.descriptionForm.get('description').value !== this.poll.description;
 }

 public goBack(): void {
   this.passwordForm.reset();
   this.location.back();
 }

 /**
  * Handler for the search bar
  */
 public search(): void {
     const query = this.searchform.get('query').value;
     this.searchform.reset();
     this.router.navigate(['/search'], { queryParams: { query: query } });
 }

 /**
  * Sends the edited poll description to the server
  * TODO: Better feedback
  */
 public async onEditDescriptionButton(): Promise<void> {
     const desc: string = this.descriptionForm.get('description').value;
     await this.assignmentRepo.updatePoll({ description: desc }, this.poll).then(null, this.raiseError);
 }