RelationTest.php

<?php
class RelationsTest extends TestFeatureCase
{

public function testSearchColumnsWithScope()
    {
        $user = $this->users->random();
        $params = [
            'search' => $user->email,
            'model' => Crypt::encryptString(EmptyUserModel::class),
            'name' => Crypt::encryptString('name'),
            'key' => Crypt::encryptString('id'),
            'searchColumns' => Crypt::encrypt(['email', 'name']),
            'scope' => Crypt::encrypt([
                'name' => 'asFilerId',
                'parameters' => [$user->id],
            ]),
            'append' => Crypt::encryptString('full'),
        ];

        $response = $this
            ->actingAs($this->createAdminUser())
            ->post(route('platform.systems.relation'), $params);

        $response->assertJson([
            $user->id => $user->name.' ('.$user->email.')',
        ]);
    }
}