import { ControlValueAccessor } from '@angular/forms' ; import { Component } from '@angular/core' ; @ Component ( { selector : 'mat-select, mat-slide-toggle, mat-slider' , template : `` } ) export class ObMockMatElement implements ControlValueAccessor { registerOnChange ( fn ) { } registerOnTouched ( fn ) { } setDisabledState ( isDisabled ) { } writeValue ( obj ) { } }