createWorkflow example

use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\TestCase;
use Symfony\Component\Workflow\SupportStrategy\InstanceOfSupportStrategy;
use Symfony\Component\Workflow\Workflow;

class InstanceOfSupportStrategyTest extends TestCase
{
    public function testSupportsIfClassInstance()
    {
        $strategy = new InstanceOfSupportStrategy(Subject1::class);

        $this->assertTrue($strategy->supports($this->createWorkflow(), new Subject1()));
    }

    public function testSupportsIfNotClassInstance()
    {
        $strategy = new InstanceOfSupportStrategy(Subject2::class);

        $this->assertFalse($strategy->supports($this->createWorkflow(), new Subject1()));
    }

    private function createWorkflow(): MockObject&Workflow
    {