[ADF-2501] Checkbox form Widget - TASK "Complete" button not grayed out when widget set as required. (#3161)

* Validation missing for the boolean type.
* Added test cases for the recent changes

lib/core/form/components/widgets/core/form-field-validator.spec.ts

@@ -172,6 +172,29 @@ describe('FormFieldValidator', () => {
             expect(validator.validate(field)).toBeTruthy();
         });
 
+        it('should succeed for check box', () => {
+            let field = new FormFieldModel(new FormModel(), {
+                type: FormFieldTypes.BOOLEAN,
+                required: true,
+                value: true,
+                options: [{ id: 'two', name: 'two' }]
+            });
+
+            expect(validator.validate(field)).toBeTruthy();
+        });
+
+        it('should fail for check box', () => {
+            let field = new FormFieldModel(new FormModel(), {
+                type: FormFieldTypes.BOOLEAN,
+                required: true,
+                value: false,
+                options: [{ id: 'two', name: 'two' }]
+            });
+            field.value = false;
+
+            expect(validator.validate(field)).toBeFalsy();
+        });
+
     });
 
     describe('NumberFieldValidator', () => {

lib/core/form/components/widgets/core/form-field-validator.ts

@@ -34,6 +34,7 @@ export class RequiredFieldValidator implements FormFieldValidator {
         FormFieldTypes.TEXT,
         FormFieldTypes.MULTILINE_TEXT,
         FormFieldTypes.NUMBER,
+        FormFieldTypes.BOOLEAN,
         FormFieldTypes.TYPEAHEAD,
         FormFieldTypes.DROPDOWN,
         FormFieldTypes.PEOPLE,
@@ -76,6 +77,10 @@ export class RequiredFieldValidator implements FormFieldValidator {
                 return field.value && field.value instanceof Array && field.value.length > 0;
             }
 
+            if (field.type === FormFieldTypes.BOOLEAN) {
+                return field.value ? true : false;
+            }
+
             if (field.value === null || field.value === undefined || field.value === '') {
                 return false;
             }