Error

PS C:\Users\Gebruiker\Desktop\databaser-layer> vendor\\bin\\phpunit
PHPUnit 6.2.3 by Sebastian Bergmann and contributors.

E                                                                   1 / 1 (100%)

Time: 53 ms, Memory: 4.00MB

There was 1 error:

1) ActivismeBE\DatabaseLayering\Tests\Repositories\RepositoryTest::testRepository
Error: Call to a member function call() on null

C:\Users\Gebruiker\Desktop\databaser-layer\vendor\laravel\framework\src\Illuminate\Foundation\Testing\Concerns\InteractsWithConsole.php:18
C:\Users\Gebruiker\Desktop\databaser-layer\vendor\orchestra\testbench-core\src\Traits\WithLaravelMigrations.php:22
C:\Users\Gebruiker\Desktop\databaser-layer\tests\RepositoryTest.php:54
C:\Users\Gebruiker\Desktop\databaser-layer\tests\RepositoryTest.php:16

ERRORS!
Tests: 1, Assertions: 0, Errors: 1.
PS C:\Users\Gebruiker\Desktop\databaser-layer>

Test.php

<?php

namespace ActivismeBE\DatabaseLayering\Tests\Repositories;

use \Mockery as m;
use Illuminate\Database\Schema\Blueprint;
use \Orchestra\Testbench\TestCase as Orchestra;

class RepositoryTest extends Orchestra
{    
    protected $mock;
    protected $repository;
    
    public function setUp() 
    {
        $this->setUpDatabase($this->app);

        parent::setUp();
        $this->mock = m::mock('Illuminate\Database\Eloquent\Model');
    }

    protected function getPackageProviders($app)
    {
        return [
            \ActivismeBE\DatabaseLayering\Providers\RepositoryProvider::class, 
            \Orchestra\Database\ConsoleServiceProvider::class, 
        ];
    }

    protected function getEnvironmentSetup($app) 
    {
        // Setup default database to use sqlite :memory:
        $app['config']->set('database.default', 'sqlite');
        $app['config']->set('database.connections.sqlite', [
            'driver' => 'sqlite', 
            'database' => ':memory:', 
            'prefix' => '',
        ]);
    }

    /**
 * Resolve application HTTP Kernel implementation.
 *
 * @param  \Illuminate\Foundation\Application  $app
 * @return void
 */
protected function resolveApplicationHttpKernel($app)
{
    $app->singleton('Illuminate\Contracts\Http\Kernel', 'Acme\Testbench\Http\Kernel');
}

    protected function setUpDatabase($app) 
    {
        $this->loadLaravelMigrations(['--database' => 'default', '--realpath' => realpath(__DIR__ . '/migrations')]);
    }

    public function testRepository()
    {
        $this->assertTrue(true);
    }
}