1 files changed, 67 insertions, 0 deletions
diff --git a/spec/frontend/notes/components/notes_activity_header_spec.js b/spec/frontend/notes/components/notes_activity_header_spec.js
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+++ b/spec/frontend/notes/components/notes_activity_header_spec.js
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+import { shallowMount } from '@vue/test-utils';
+import { __ } from '~/locale';
+import NotesActivityHeader from '~/notes/components/notes_activity_header.vue';
+import DiscussionFilter from '~/notes/components/discussion_filter.vue';
+import TimelineToggle from '~/notes/components/timeline_toggle.vue';
+import createStore from '~/notes/stores';
+import waitForPromises from 'helpers/wait_for_promises';
+import { notesFilters } from '../mock_data';
+
+describe('~/notes/components/notes_activity_header.vue', () => {
+  let wrapper;
+
+  const findTitle = () => wrapper.find('h2');
+
+  const createComponent = ({ props = {}, ...options } = {}) => {
+    wrapper = shallowMount(NotesActivityHeader, {
+      propsData: {
+        notesFilters,
+        ...props,
+      },
+      // why: Rendering async timeline toggle requires store
+      store: createStore(),
+      ...options,
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  describe('default', () => {
+    beforeEach(() => {
+      createComponent();
+    });
+
+    it('renders title', () => {
+      expect(findTitle().text()).toBe(__('Activity'));
+    });
+
+    it('renders discussion filter', () => {
+      expect(wrapper.findComponent(DiscussionFilter).props()).toEqual({
+        filters: notesFilters,
+        selectedValue: 0,
+      });
+    });
+
+    it('does not render timeline toggle', () => {
+      expect(wrapper.findComponent(TimelineToggle).exists()).toBe(false);
+    });
+  });
+
+  it('with notesFilterValue prop, passes to discussion filter', () => {
+    createComponent({ props: { notesFilterValue: 1 } });
+
+    expect(wrapper.findComponent(DiscussionFilter).props('selectedValue')).toBe(1);
+  });
+
+  it('with showTimelineViewToggle injected, renders timeline toggle asynchronously', async () => {
+    createComponent({ provide: { showTimelineViewToggle: () => true } });
+
+    expect(wrapper.findComponent(TimelineToggle).exists()).toBe(false);
+
+    await waitForPromises();
+
+    expect(wrapper.findComponent(TimelineToggle).exists()).toBe(true);
+  });
+});