Laravel resources wrap twice when unit testing

When I run a test suit, my tests that return a ResourceCollection fails because the data is wrap twice but success when I run them individually.

I already know the cause
ResourceCollection use a static variable called wrap and between the tests, this variable keep his state.

Now I need to fix it

Take theses two methods as starting point in the OrganizationsController

/**
 * @param Request $request
 * @return OrganizationsResource
 */
public function index(Request $request): OrganizationsResource
{
    return new OrganizationsResource(
        Organization::paginate()
    );
}

/**
 * @param Request $request
 * @param Organization $organization
 * @return OrganizationResource
 */
public function show(Request $request, Organization $organization): OrganizationResource
{
    OrganizationResource::withoutWrapping();
    return new OrganizationResource($organization);
}

The OrganizationsResource

<?php

namespace App\Http\Resources;

use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\ResourceCollection;

class OrganizationsResource extends ResourceCollection
{

    /**
     * @param Request $request
     * @return array
     */
    public function toArray($request): array
    {
        return [
            'data' => OrganizationResource::collection($this->collection),
        ];
    }
}

And the OrganizationResource

<?php

namespace App\Http\Resources;

use Illuminate\Http\Resources\Json\Resource;

class OrganizationResource extends Resource
{
    /**
     * Transform the resource into an array.
     *
     * @param  \Illuminate\Http\Request $request
     * @return array
     */
    public function toArray($request)
    {

        return [
            'id'         => $this->id,
            'type'       => 'organization',
            'attributes' => [
                'name' => $this->resource->name,
            ],
        ];
    }
}

This works perfectly fine the response given for the index will be build like this:

{
 "data": [
    {"id": 1},{"id": 2}, ....
 ],
 "links": {
    "next": "http://...",
    ....
 },
 "meta": {
    "current_page": 1,
    ....
 }
}

And as expected, the show will return

{
    "id": 1,
    "type" "organization",
    ....
}

However, when I run all my unit tests, my index(es) returns the the following json (notice {"data":{"data"...

{
 "data": {
     "data": [
        {"id": 1},{"id": 2}, ....
     ],
     "links": {
        "next": "http://...",
        ....
     },
     "meta": {
        "current_page": 1,
        ....
     }
    }
}

Here's one of the test that succeed when running alone but fail after withoutWrapping as been called once in a test suit

/** @test */
public function organizations_api_index_returns_valid_schema(): void
{
    factory(Organization::class, 2)->create(['name' => 'My-Company']);
    $this->json('get', '/organizations')->assertJsonSchema(base_path("{$this->schema}/organizations.json"));
}

In case you wondering about assertJsonSchema this is from sixlive/laravel-json-schema-assertions

Temporary workaround

I'm running my tests with processIsolation set to true in my phpunit.xml But it's extremely slow

I'm not satisfied with my answer, but it fix the error if I set $wrap manually in my ResourceCollection.

class OrganizationsResource extends ResourceCollection
{
    public static $wrap = 'data';

    /**
     * @param Request $request
     * @return array
     */
    public function toArray($request): array
    {
        return [
            'data' => OrganizationResource::collection($this->collection),
        ];
    }
}