chore: adding header test coverage

Author: Hubert Koster

src/components/Header/__tests__/Header.test.tsx

@@ -0,0 +1,16 @@
+import React from 'react';
+import { Header } from '..';
+import { render, screen } from '@testing-library/react';
+
+describe('Header', () => {
+  it('should be able to render the header with links', () => {
+    render(<Header />);
+    const deriv_website_link = screen.getByText('Deriv website');
+    const who_we_are_link = screen.getByText('Who we are');
+    const contact_us_link = screen.getByText('Contact us');
+
+    expect(deriv_website_link).toBeVisible();
+    expect(who_we_are_link).toBeVisible();
+    expect(contact_us_link).toBeVisible();
+  });
+});