Ava - Allow export of regular tests from another file to work with test.Before()

Something I've come across when trying to restructure my tests to be more modular (instead of having a super long list of tests in one file) is that the "test()" inside the exported file doesn't run after the "test.before()" in the file it was required from.

What should I do to make sure that the "test()" always run after "test.before()" regardless of which file they're being called in?

I have one main file that imports the tests:

import {otherTests} from './otherTests'; 
import {loadedDocument, loadedJson} from './asyncLoaders'; 

let document, json;

test.before(async t => {
    document = await loadedDocument(url); // fetch stuff
    json = await loadedJson(jsonUrl); // fetch stuff
});

// call tests from another file
otherTests(document, json);

File with tests to export:

export function otherTests(document, json) {
   test('test document', t => {
       t.true(document.length > 0);   
   });

   test('test json', t => {
       t.true(json.length > 0);
   })    
}

Could someone shed some light on what's happening and what's the correct way to do "export" tests from another file?

Solutions I've tried: --serial