[FEQ] P2P-V2 Close header test (#13656)

* chore: removed responsive root

* chore: reverted old changes

* chore: added test cases for close header

* chore: added test cases for close header

packages/p2p-v2/src/components/CloseHeader/CloseHeader.tsx

@@ -12,7 +12,11 @@ const CloseHeader = () => {
             <Text size={isMobile ? 'md' : 'xl'} weight='bold'>
                 {isMobile ? 'Deriv P2P' : 'Cashier'}
             </Text>
-            <LabelPairedXmarkLgBoldIcon className='p2p-v2-close-header--icon' onClick={() => window.history.back()} />
+            <LabelPairedXmarkLgBoldIcon
+                className='p2p-v2-close-header--icon'
+                data-testid='dt_p2p_v2_close_header_close_icon'
+                onClick={() => window.history.back()}
+            />
         </div>
     );
 };

packages/p2p-v2/src/components/CloseHeader/__tests__/CloseHeader.spec.tsx

@@ -0,0 +1,33 @@
+import React from 'react';
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import CloseHeader from '../CloseHeader';
+
+const mockUseDevice = {
+    isMobile: false,
+};
+
+jest.mock('@/hooks/useDevice', () => ({
+    __esModule: true,
+    default: jest.fn(() => mockUseDevice),
+}));
+let windowHistoryBackSpy: jest.SpyInstance<void, []>;
+
+describe('CloseHeader', () => {
+    it('should navigate back when cross icon is clicked', () => {
+        windowHistoryBackSpy = jest.spyOn(window.history, 'back');
+        render(<CloseHeader />);
+        const crossIcon = screen.getByTestId('dt_p2p_v2_close_header_close_icon');
+        userEvent.click(crossIcon);
+        expect(windowHistoryBackSpy).toBeCalled();
+    });
+    it('should render the correct header title on desktop', () => {
+        render(<CloseHeader />);
+        expect(screen.queryByText('Cashier')).toBeInTheDocument();
+    });
+    it('should render the correct header title on mobile', () => {
+        mockUseDevice.isMobile = true;
+        render(<CloseHeader />);
+        expect(screen.queryByText('Deriv P2P')).toBeInTheDocument();
+    });
+});