test: added test cases for toggle button component

src/components/AppHeader/MobileMenu/__tests__/ToggleButton.spec.tsx

@@ -0,0 +1,19 @@
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { ToggleButton } from '../ToggleButton';
+
+const mockOnClick = jest.fn();
+
+describe('ToggleButton component', () => {
+    it('renders correctly', () => {
+        render(<ToggleButton onClick={mockOnClick} />);
+        expect(screen.getByRole('button')).toBeInTheDocument();
+        expect(screen.getByRole('img')).toBeInTheDocument();
+    });
+
+    it('calls onClick when clicked', async () => {
+        render(<ToggleButton onClick={mockOnClick} />);
+        await userEvent.click(screen.getByRole('button'));
+        expect(mockOnClick).toHaveBeenCalledTimes(1);
+    });
+});