Test timed out.

Hi,
I've started with acceptance tests in Ember.js and wrote simple test
```javascript
test('visit teacher', async function(assert) {
await visit('/teacher/6');
assert.ok(find('h1.name'), 'Ричард_test');
});
```
And when I start test I get error:
`Test took longer than 60000ms; test timed out.@ 60099 ms`
This route requests data from server. But when I try to create test of visiting route without data requests then test runs well.
I use Ember 3.1 and ember-qunit 3.4.0