1 files changed, 22 insertions, 1 deletions
diff --git a/spec/javascripts/issue_show/components/description_spec.js b/spec/javascripts/issue_show/components/description_spec.js
index 463f3c89926..2eeed6770be 100644
--- a/spec/javascripts/issue_show/components/description_spec.js
+++ b/spec/javascripts/issue_show/components/description_spec.js
@@ -21,7 +21,8 @@ describe('Description component', () => {
     if (!document.querySelector('.issuable-meta')) {
       const metaData = document.createElement('div');
       metaData.classList.add('issuable-meta');
-      metaData.innerHTML = '<span id="task_status"></span><span id="task_status_short"></span>';
+      metaData.innerHTML =
+        '<div class="flash-container"></div><span id="task_status"></span><span id="task_status_short"></span>';
 
       document.body.appendChild(metaData);
     }
@@ -33,6 +34,10 @@ describe('Description component', () => {
     vm.$destroy();
   });
 
+  afterAll(() => {
+    $('.issuable-meta .flash-container').remove();
+  });
+
   it('animates description changes', done => {
     vm.descriptionHtml = 'changed';
 
@@ -123,7 +128,10 @@ describe('Description component', () => {
           fieldName: 'description',
           selector: '.detail-page-description',
           onSuccess: jasmine.any(Function),
+          onError: jasmine.any(Function),
+          lockVersion: 0,
         });
+
         done();
       });
     });
@@ -184,4 +192,17 @@ describe('Description component', () => {
   it('sets data-update-url', () => {
     expect(vm.$el.querySelector('textarea').dataset.updateUrl).toEqual(gl.TEST_HOST);
   });
+
+  describe('taskListUpdateError', () => {
+    it('should create flash notification and emit an event to parent', () => {
+      const msg =
+        'Someone edited this issue at the same time you did. The description has been updated and you will need to make your changes again.';
+      spyOn(vm, '$emit');
+
+      vm.taskListUpdateError();
+
+      expect(document.querySelector('.flash-container .flash-text').innerText.trim()).toBe(msg);
+      expect(vm.$emit).toHaveBeenCalledWith('taskListUpdateFailed');
+    });
+  });
 });