jest.mock('../MetadataValues/MetadataValues', ()=> ()=> <div>Mock</div>);

import MetadataValues from '../MetadataValues/MetadataValues'
jest.mock('../MetadataValues/MetadataValues', ()=> jest.fn());

it('does something', ()={
   MetadataValues.mockImplementation( ()=> { <div>Mock1</div>});
})

it('does something else', ()={
  MetadataValues.mockImplementation( ()=> { <div>Mock2</div>});
})