How to test in PHPUnit; a CSV File Upload using an API written in Laravel?

I would like to upload a CSV file via a Laravel API then test the upload with PHPUnit.

What would my store() function in the Controller and testCreate() function basically look like.

This is what I got so far:

<?php

use Illuminate\Foundation\Testing\DatabaseTransactions;
use Illuminate\Foundation\Testing\WithoutMiddleware;

class ProspectListControllerTest extends TestCase
{

use WithoutMiddleware, DatabaseTransactions;

public function testCreate()
{

    $file = new Symfony\Component\HttpFoundation\File\UploadedFile(storage_path('/crm/data/test-file.csv'), 'test-file.csv', 'text/plain', 446, null, true);

    $this->call('POST', '/api/lists-imports/', [], [], ['csv_file' => $file]);
    $this->dump()->assertResponseOk();
  }
}

and the controller method looks like:

<?php

namespace App\Http\Controllers;

use App\ListImport;
use Illuminate\Http\Request;

class ListImportController extends Controller
{
public $model = ListImport::class;

public function store(Request $request, ListImport $importList)
{
    $request->file('importFile')->move(public_path('storage.crm.data'), $request->file('importFile')->getClientOriginalName());

    $importList->importFile = public_path('storage.crm.data') . '/' . $request->file('importFile')->getClientOriginalName();

    $importList->save();

}
}

Any help will be appreciated :)