Increase code covergae for OverFlowMenuV2 (#17884)

* test: overflow menu v2- adding tests

* test: overflow menu v2- adding tests

* test: addressing review comments

* test: addressing review comments

* test: addressing review comments

* test: replaced fireevent with userEvent

* test: change test names for consistency

---------

Co-authored-by: Nikhil Tomar <[email protected]>
Co-authored-by: Ariella Gilmore <[email protected]>

packages/react/src/components/OverflowMenuV2/OverFlowMenuV2-test.js

@@ -0,0 +1,101 @@
+/**
+ * Copyright IBM Corp. 2016, 2024
+ *
+ * This source code is licensed under the Apache-2.0 license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import { act, render, screen } from '@testing-library/react';
+
+import { FeatureFlags } from '../FeatureFlags';
+import { MenuItem } from '../Menu';
+import { OverflowMenuV2 } from './';
+import React from 'react';
+import { action } from '@storybook/addon-actions';
+import userEvent from '@testing-library/user-event';
+
+describe('<OverflowMenuV2 />', () => {
+  let consoleWarnSpy;
+
+  beforeEach(() => {
+    consoleWarnSpy = jest.spyOn(console, 'warn').mockImplementation(() => {});
+    jest.clearAllMocks();
+  });
+
+  afterEach(() => {
+    consoleWarnSpy.mockRestore();
+  });
+
+  it('should log the deprecation warning when rendering OverflowMenuV2', () => {
+    const onClick = action('onClick (MenuItem)');
+
+    render(
+      <OverflowMenuV2>
+        <MenuItem label="Stop app" onClick={onClick} />
+      </OverflowMenuV2>
+    );
+
+    // Check if the deprecation warning is logged
+    expect(consoleWarnSpy).toHaveBeenCalledWith(
+      expect.stringContaining(
+        '`<OverflowMenuV2>` is deprecated and will be removed in the next major version.'
+      )
+    );
+  });
+
+  it('should render correctly with feature flag enabled', async () => {
+    const { getByRole, findByText } = render(
+      <FeatureFlags enableV12Overflowmenu>
+        <OverflowMenuV2>
+          <MenuItem label="Stop app" />
+          <MenuItem label="Delete app" kind="danger" />
+        </OverflowMenuV2>
+      </FeatureFlags>
+    );
+
+    await act(async () => {
+      const button = getByRole('button', { name: /options/i });
+      button.click();
+    });
+
+    expect(await findByText('Stop app')).toBeInTheDocument();
+    expect(await findByText('Delete app')).toBeInTheDocument();
+  });
+
+  it('should respect align prop', () => {
+    const { container } = render(
+      <OverflowMenuV2 autoAlign>
+        <MenuItem label="Stop app" />
+      </OverflowMenuV2>
+    );
+
+    expect(container.firstChild).toHaveClass('cds--autoalign');
+  });
+
+  it('should render OverflowMenu with MenuItem children', async () => {
+    render(
+      <FeatureFlags enableV12Overflowmenu>
+        <OverflowMenuV2>
+          <MenuItem label="Stop app" />
+          <MenuItem label="Delete app" kind="danger" />
+        </OverflowMenuV2>
+      </FeatureFlags>
+    );
+
+    const button = screen.getByRole('button', { name: /options/i });
+
+    await act(async () => {
+      await userEvent.click(button);
+    });
+
+    const stopAppMenuItem = await screen.findByRole('menuitem', {
+      name: /Stop app/i,
+    });
+    const deleteAppMenuItem = await screen.findByRole('menuitem', {
+      name: /Delete app/i,
+    });
+
+    expect(stopAppMenuItem).toBeInTheDocument();
+    expect(deleteAppMenuItem).toBeInTheDocument();
+  });
+});