1 files changed, 159 insertions, 0 deletions
diff --git a/spec/frontend/header_search/components/app_spec.js b/spec/frontend/header_search/components/app_spec.js
new file mode 100644
index 00000000000..2cbcb73ce5b
--- /dev/null
+++ b/spec/frontend/header_search/components/app_spec.js
@@ -0,0 +1,159 @@
+import { GlSearchBoxByType } from '@gitlab/ui';
+import Vue from 'vue';
+import Vuex from 'vuex';
+import { shallowMountExtended } from 'helpers/vue_test_utils_helper';
+import HeaderSearchApp from '~/header_search/components/app.vue';
+import HeaderSearchDefaultItems from '~/header_search/components/header_search_default_items.vue';
+import HeaderSearchScopedItems from '~/header_search/components/header_search_scoped_items.vue';
+import { ENTER_KEY, ESC_KEY } from '~/lib/utils/keys';
+import { visitUrl } from '~/lib/utils/url_utility';
+import { MOCK_SEARCH, MOCK_SEARCH_QUERY, MOCK_USERNAME } from '../mock_data';
+
+Vue.use(Vuex);
+
+jest.mock('~/lib/utils/url_utility', () => ({
+  visitUrl: jest.fn(),
+}));
+
+describe('HeaderSearchApp', () => {
+  let wrapper;
+
+  const actionSpies = {
+    setSearch: jest.fn(),
+  };
+
+  const createComponent = (initialState) => {
+    const store = new Vuex.Store({
+      state: {
+        ...initialState,
+      },
+      actions: actionSpies,
+      getters: {
+        searchQuery: () => MOCK_SEARCH_QUERY,
+      },
+    });
+
+    wrapper = shallowMountExtended(HeaderSearchApp, {
+      store,
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  const findHeaderSearchInput = () => wrapper.findComponent(GlSearchBoxByType);
+  const findHeaderSearchDropdown = () => wrapper.findByTestId('header-search-dropdown-menu');
+  const findHeaderSearchDefaultItems = () => wrapper.findComponent(HeaderSearchDefaultItems);
+  const findHeaderSearchScopedItems = () => wrapper.findComponent(HeaderSearchScopedItems);
+
+  describe('template', () => {
+    it('always renders Header Search Input', () => {
+      createComponent();
+      expect(findHeaderSearchInput().exists()).toBe(true);
+    });
+
+    describe.each`
+      showDropdown | username         | showSearchDropdown
+      ${false}     | ${null}          | ${false}
+      ${false}     | ${MOCK_USERNAME} | ${false}
+      ${true}      | ${null}          | ${false}
+      ${true}      | ${MOCK_USERNAME} | ${true}
+    `('Header Search Dropdown', ({ showDropdown, username, showSearchDropdown }) => {
+      describe(`when showDropdown is ${showDropdown} and current_username is ${username}`, () => {
+        beforeEach(() => {
+          createComponent();
+          window.gon.current_username = username;
+          wrapper.setData({ showDropdown });
+        });
+
+        it(`should${showSearchDropdown ? '' : ' not'} render`, () => {
+          expect(findHeaderSearchDropdown().exists()).toBe(showSearchDropdown);
+        });
+      });
+    });
+
+    describe.each`
+      search         | showDefault | showScoped
+      ${null}        | ${true}     | ${false}
+      ${''}          | ${true}     | ${false}
+      ${MOCK_SEARCH} | ${false}    | ${true}
+    `('Header Search Dropdown Items', ({ search, showDefault, showScoped }) => {
+      describe(`when search is ${search}`, () => {
+        beforeEach(() => {
+          createComponent({ search });
+          window.gon.current_username = MOCK_USERNAME;
+          wrapper.setData({ showDropdown: true });
+        });
+
+        it(`should${showDefault ? '' : ' not'} render the Default Dropdown Items`, () => {
+          expect(findHeaderSearchDefaultItems().exists()).toBe(showDefault);
+        });
+
+        it(`should${showScoped ? '' : ' not'} render the Scoped Dropdown Items`, () => {
+          expect(findHeaderSearchScopedItems().exists()).toBe(showScoped);
+        });
+      });
+    });
+  });
+
+  describe('events', () => {
+    beforeEach(() => {
+      createComponent();
+      window.gon.current_username = MOCK_USERNAME;
+    });
+
+    describe('Header Search Input', () => {
+      describe('when dropdown is closed', () => {
+        it('onFocus opens dropdown', async () => {
+          expect(findHeaderSearchDropdown().exists()).toBe(false);
+          findHeaderSearchInput().vm.$emit('focus');
+
+          await wrapper.vm.$nextTick();
+
+          expect(findHeaderSearchDropdown().exists()).toBe(true);
+        });
+
+        it('onClick opens dropdown', async () => {
+          expect(findHeaderSearchDropdown().exists()).toBe(false);
+          findHeaderSearchInput().vm.$emit('click');
+
+          await wrapper.vm.$nextTick();
+
+          expect(findHeaderSearchDropdown().exists()).toBe(true);
+        });
+      });
+
+      describe('when dropdown is opened', () => {
+        beforeEach(() => {
+          wrapper.setData({ showDropdown: true });
+        });
+
+        it('onKey-Escape closes dropdown', async () => {
+          expect(findHeaderSearchDropdown().exists()).toBe(true);
+          findHeaderSearchInput().vm.$emit('keydown', new KeyboardEvent({ key: ESC_KEY }));
+
+          await wrapper.vm.$nextTick();
+
+          expect(findHeaderSearchDropdown().exists()).toBe(false);
+        });
+      });
+
+      it('calls setSearch when search input event is fired', async () => {
+        findHeaderSearchInput().vm.$emit('input', MOCK_SEARCH);
+
+        await wrapper.vm.$nextTick();
+
+        expect(actionSpies.setSearch).toHaveBeenCalledWith(expect.any(Object), MOCK_SEARCH);
+      });
+
+      it('submits a search onKey-Enter', async () => {
+        findHeaderSearchInput().vm.$emit('keydown', new KeyboardEvent({ key: ENTER_KEY }));
+
+        await wrapper.vm.$nextTick();
+
+        expect(visitUrl).toHaveBeenCalledWith(MOCK_SEARCH_QUERY);
+      });
+    });
+  });
+});