* FIX: Subfolder replace should only affect URL prefix
Issue was reported in https://meta.discourse.org/t/-/179504
* DEV: Test subfolder handling in get-url when called twice on the same path
The bug was mentioned on [meta](https://meta.discourse.org/t/two-bugs-with-usernames-starting-with-subfolder-name/169505)
When discourse is installed on `/subfolder` and username is containing subfolder name like for example `subfolderadmin` - user URLs were incorrect.
Instead of having `/subfolder/u/subfolderadmin/summary/` we were leading to `/subfolder/uadmin/summary`.
The reason for that was incorrect check in `getUrl` helper:
```javascript
const found = url.indexOf(baseUri);
if (found >= 0 && found < 3) {
return url;
}
return baseUri + url;
```
baseUri is `/subfolder`, url is `/u/subfolderadmin` and indexOf returned position which in the end returned incorrect URL.
I think that we should check if the URL starts with baseUri and not if contains baseUri.
Using arrow functions changes `this` context, which is undesired in tests, e.g. it makes it impossible to setup things like pretender (`this.server`) in `beforeEach` hooks.
Ember guides always use classic functions in examples (e.g. https://guides.emberjs.com/release/testing/test-types/), and that's what it uses in its own test suite, as do various addons and ember apps.
It was also already used in Discourse where `this` was required. Moving forward, it will be needed in more places as we migrate toward ember-cli.
(I might later add a custom rule to eslint-discourse-ember to enforce this)
We used many global functions to handle tests when they should be
imported like other libraries in our application. This also gets us
closer to the way Ember CLI prefers our tests to be laid out.
This is where they should be as far as ember is concerned. Note this is
a huge commit and we should be really careful everything continues to
work properly.