[ADF-4461] FormCloud - fix date validations (#4776)

* [ADF-4443] FormCloud - fix date validations

* [ADF-4443] - add save validation

* [ADF-4443] - PR changes

* [ADF-4443] FormCloud - fix date validations

* fix unit tests

* [ADF-4443] - add save validation

* [ADF-4443] - PR changes

* Revert changes on save form

* Revert check form valid on save

lib/core/form/components/form-base.component.ts

@@ -70,7 +70,7 @@ export abstract class FormBaseComponent {
 
     /** Contains a list of form field validator instances. */
     @Input()
-    fieldValidators: FormFieldValidator[] = [];
+    fieldValidators: FormFieldValidator[];
 
     /** Emitted when the supplied form values have a validation error. */
     @Output()

lib/core/form/components/widgets/date/date.widget.spec.ts

@@ -189,5 +189,20 @@ describe('DateWidgetComponent', () => {
             dateButton = <HTMLButtonElement> element.querySelector('button');
             expect(dateButton.disabled).toBeTruthy();
         }));
+
+        it('should set isValid to false when the value is not a correct date value', async(() => {
+            widget.field = new FormFieldModel(new FormModel(), {
+                id: 'date-field-id',
+                name: 'date-name',
+                value: 'aa',
+                type: 'date',
+                readOnly: 'false'
+            });
+            widget.field.isVisible = true;
+            widget.field.readOnly = false;
+            fixture.detectChanges();
+
+            expect(widget.field.isValid).toBeFalsy();
+        }));
     });
 });

lib/core/form/components/widgets/date/date.widget.ts

@@ -80,5 +80,4 @@ export class DateWidgetComponent extends WidgetComponent implements OnInit {
         }
         this.onFieldChanged(this.field);
     }
-
 }