Acrescentei o teste com o campo full name:
it('verifica mensagens de nome incompleto', () => {
cy.contains('a', 'Register now').click();
cy.contains('button', 'Register').click();
cy.get('input[formcontrolname="fullName"]').type('T');
cy.contains('button', 'Register').click();
cy.contains('ap-vmessage', 'Mininum length is 2').should('be.visible');
})
