test(*): final fixes for new option

Author: ChronosSF

projects/igniteui-angular/src/lib/directives/input/input.directive.spec.ts

@@ -722,6 +722,9 @@ describe('IgxInput', () => {
 
         // 3) Check if the input group's --invalid and --required classes are removed when validator is dynamically cleared
         fix.componentInstance.removeValidators(formGroup);
+        // the component cannot both take required on the input and validators. If validators write required, their removal
+        // cannot cause required to be removed as it may have been part of the initial setup
+        input.nativeElement.removeAttribute('required');
         fix.detectChanges();
         tick();
 

projects/igniteui-angular/src/lib/simple-combo/simple-combo.component.spec.ts

@@ -2276,7 +2276,6 @@ describe('IgxSimpleCombo', () => {
 
                 expect(combo.valid).toEqual(IgxInputState.INITIAL);
                 expect(combo.comboInput.valid).toEqual(IgxInputState.INITIAL);
-                expect(combo.comboInput.nativeElement.attributes['required']).toBeDefined();
 
                 // empty string
                 combo.open();