Adds a test for the fixed vulnerability icon

ee/spec/javascripts/vue_mr_widget/ee_mr_widget_options_spec.js

@@ -579,7 +579,7 @@ describe('ee merge request widget options', () => {
               vm.$el.querySelector('.js-sast-container .report-block-list-issue-description')
                 .textContent,
             ),
-          ).toEqual('Container scanning detected 1 new vulnerability');
+          ).toEqual('Container scanning detected 1 new, and 1 fixed vulnerabilities');
           done();
         }, 0);
       });

ee/spec/javascripts/vue_shared/security_reports/grouped_security_reports_app_spec.js

@@ -223,6 +223,17 @@ describe('Grouped security reports app', () => {
         });
       }, 0);
     });
+
+    it('has the success icon for fixed vulnerabilities', done => {
+      setTimeout(() => {
+        const icon = vm.$el.querySelector(
+          '.js-sast-container~.js-plain-element .ic-status_success_borderless',
+        );
+
+        expect(icon).not.toBeNull();
+        done();
+      }, 0);
+    });
   });
 
   describe('with the pipelinePath prop', () => {