Add latest changes from gitlab-org/gitlab@master

1 files changed, 73 insertions, 0 deletions

diff --git a/spec/frontend/header_search/init_spec.js b/spec/frontend/header_search/init_spec.js
new file mode 100644
index 00000000000..2feef79e8d1
--- /dev/null
+++ b/spec/frontend/header_search/init_spec.js
@@ -0,0 +1,73 @@
+import { setHTMLFixture, resetHTMLFixture } from 'helpers/fixtures';
+
+import initHeaderSearch, { eventHandler } from '~/header_search/init';
+
+describe('Header Search EventListener', () => {
+  beforeEach(() => {
+    jest.resetModules();
+    jest.restoreAllMocks();
+    setHTMLFixture(`
+      <div class="js-header-content">
+        <div class="header-search" id="js-header-search" data-autocomplete-path="/search/autocomplete" data-issues-path="/dashboard/issues" data-mr-path="/dashboard/merge_requests" data-search-context="{}" data-search-path="/search">
+          <input autocomplete="off" class="form-control gl-form-input gl-search-box-by-type-input" data-qa-selector="search_box" id="search" name="search" placeholder="Search GitLab" type="text">
+        </div>
+      </div>`);
+  });
+
+  afterEach(() => {
+    resetHTMLFixture();
+    jest.clearAllMocks();
+  });
+
+  it('attached event listener', () => {
+    const searchInputBox = document?.querySelector('#search');
+    const addEventListener = jest.spyOn(searchInputBox, 'addEventListener');
+    initHeaderSearch();
+
+    expect(addEventListener).toBeCalled();
+  });
+
+  it('removes event listener ', async () => {
+    const removeEventListener = jest.fn();
+    jest.mock('~/header_search', () => ({ initHeaderSearchApp: jest.fn() }));
+    await eventHandler.apply(
+      {
+        newHeaderSearchFeatureFlag: true,
+        searchInputBox: document.querySelector('#search'),
+      },
+      [removeEventListener],
+    );
+
+    expect(removeEventListener).toBeCalled();
+  });
+
+  it('attaches new vue dropdown  when feature flag is enabled', async () => {
+    const mockVueApp = jest.fn();
+    jest.mock('~/header_search', () => ({ initHeaderSearchApp: mockVueApp }));
+    await eventHandler.apply(
+      {
+        newHeaderSearchFeatureFlag: true,
+        searchInputBox: document.querySelector('#search'),
+      },
+      () => {},
+    );
+
+    expect(mockVueApp).toBeCalled();
+  });
+
+  it('attaches old vue dropdown when feature flag is disabled', async () => {
+    const mockLegacyApp = jest.fn(() => ({
+      onSearchInputFocus: jest.fn(),
+    }));
+    jest.mock('~/search_autocomplete', () => mockLegacyApp);
+    await eventHandler.apply(
+      {
+        newHeaderSearchFeatureFlag: false,
+        searchInputBox: document.querySelector('#search'),
+      },
+      () => {},
+    );
+
+    expect(mockLegacyApp).toBeCalled();
+  });
+});