1 files changed, 125 insertions, 0 deletions
diff --git a/spec/frontend/notes/components/note_header_spec.js b/spec/frontend/notes/components/note_header_spec.js
new file mode 100644
index 00000000000..9b432387654
--- /dev/null
+++ b/spec/frontend/notes/components/note_header_spec.js
@@ -0,0 +1,125 @@
+import Vue from 'vue';
+import noteHeader from '~/notes/components/note_header.vue';
+import createStore from '~/notes/stores';
+
+describe('note_header component', () => {
+  let store;
+  let vm;
+  let Component;
+
+  beforeEach(() => {
+    Component = Vue.extend(noteHeader);
+    store = createStore();
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  describe('individual note', () => {
+    beforeEach(() => {
+      vm = new Component({
+        store,
+        propsData: {
+          actionText: 'commented',
+          actionTextHtml: '',
+          author: {
+            avatar_url: null,
+            id: 1,
+            name: 'Root',
+            path: '/root',
+            state: 'active',
+            username: 'root',
+          },
+          createdAt: '2017-08-02T10:51:58.559Z',
+          includeToggle: false,
+          noteId: '1394',
+          expanded: true,
+        },
+      }).$mount();
+    });
+
+    it('should render user information', () => {
+      expect(vm.$el.querySelector('.note-header-author-name').textContent.trim()).toEqual('Root');
+      expect(vm.$el.querySelector('.note-header-info a').getAttribute('href')).toEqual('/root');
+      expect(vm.$el.querySelector('.note-header-info a').dataset.userId).toEqual('1');
+      expect(vm.$el.querySelector('.note-header-info a').dataset.username).toEqual('root');
+      expect(vm.$el.querySelector('.note-header-info a').classList).toContain('js-user-link');
+    });
+
+    it('should render timestamp link', () => {
+      expect(vm.$el.querySelector('a[href="#note_1394"]')).toBeDefined();
+    });
+
+    it('should not render user information when prop `author` is empty object', done => {
+      vm.author = {};
+      Vue.nextTick()
+        .then(() => {
+          expect(vm.$el.querySelector('.note-header-author-name')).toBeNull();
+        })
+        .then(done)
+        .catch(done.fail);
+    });
+  });
+
+  describe('discussion', () => {
+    beforeEach(() => {
+      vm = new Component({
+        store,
+        propsData: {
+          actionText: 'started a discussion',
+          actionTextHtml: '',
+          author: {
+            avatar_url: null,
+            id: 1,
+            name: 'Root',
+            path: '/root',
+            state: 'active',
+            username: 'root',
+          },
+          createdAt: '2017-08-02T10:51:58.559Z',
+          includeToggle: true,
+          noteId: '1395',
+          expanded: true,
+        },
+      }).$mount();
+    });
+
+    it('should render toggle button', () => {
+      expect(vm.$el.querySelector('.js-vue-toggle-button')).toBeDefined();
+    });
+
+    it('emits toggle event on click', done => {
+      jest.spyOn(vm, '$emit').mockImplementation(() => {});
+
+      vm.$el.querySelector('.js-vue-toggle-button').click();
+
+      Vue.nextTick(() => {
+        expect(vm.$emit).toHaveBeenCalledWith('toggleHandler');
+        done();
+      });
+    });
+
+    it('renders up arrow when open', done => {
+      vm.expanded = true;
+
+      Vue.nextTick(() => {
+        expect(vm.$el.querySelector('.js-vue-toggle-button i').classList).toContain(
+          'fa-chevron-up',
+        );
+        done();
+      });
+    });
+
+    it('renders down arrow when closed', done => {
+      vm.expanded = false;
+
+      Vue.nextTick(() => {
+        expect(vm.$el.querySelector('.js-vue-toggle-button i').classList).toContain(
+          'fa-chevron-down',
+        );
+        done();
+      });
+    });
+  });
+});