Caso de Uso: Conversão de Livro para PDF - Curso Laravel Arquitetura Limpa em https://codeexperts.com.br

ConvertBookToPDFInputDTO.php

<?php

namespace MiniLeanpub\Application\UseCases\Book\ConvertBookToPDF\DTO;

use MiniLeanpub\Application\UseCases\Shared\InteractorDTO;

class ConvertBookToPDFInputDTO extends InteractorDTO
{
    public function __construct(public string $bookCode)
    {
    }
}

ConvertBookToPDFOutputDTO.php

<?php

namespace MiniLeanpub\Application\UseCases\Book\ConvertBookToPDF\DTO;

use MiniLeanpub\Application\UseCases\Shared\InteractorDTO;

class ConvertBookToPDFOutputDTO extends InteractorDTO
{
    public function __construct(public string $bookCode)
    {
    }
}

ConvertBookToPDFUseCase.php

<?php

namespace MiniLeanpub\Application\UseCases\Book\ConvertBookToPDF;

use MiniLeanpub\Application\UseCases\Book\ConvertBookToPDF\DTO\ConvertBookToPDFInputDTO;
use MiniLeanpub\Application\UseCases\Book\ConvertBookToPDF\DTO\ConvertBookToPDFOutputDTO;
use MiniLeanpub\Domain\Book\Queue\Book\QueueInterface;
use MiniLeanpub\Domain\Book\Repository\Book\BookRepositoryInterface;

class ConvertBookToPDFUseCase
{
    public function __construct(
        private ConvertBookToPDFInputDTO $input,
        private BookRepositoryInterface $repository,
        private QueueInterface $queue
    )
    {
    }

    public function handle(): ConvertBookToPDFOutputDTO
    {
        $book = $this->repository->find($this->input->getData()['bookCode']);

        $this->queue->sendToQueue($book->book_code);

        return new ConvertBookToPDFOutputDTO($book->book_code);
    }
}

ConvertBookToPDFUseCaseTest.php

<?php

namespace Tests\MiniLeanpub\Unit\Application\UseCases\Book\ConvertBookToPDF;

use App\Models\Book;
use MiniLeanpub\Application\UseCases\Book\ConvertBookToPDF\ConvertBookToPDFUseCase;
use MiniLeanpub\Application\UseCases\Book\ConvertBookToPDF\DTO\ConvertBookToPDFInputDTO;
use MiniLeanpub\Application\UseCases\Book\ConvertBookToPDF\DTO\ConvertBookToPDFOutputDTO;
use MiniLeanpub\Infrastructure\Queue\BookConverterQueueSender;
use MiniLeanpub\Infrastructure\Repository\BookEloquentRepository;
use PHPUnit\Framework\TestCase;

class ConvertBookToPDFUseCaseTest extends TestCase
{
    public function testShouldSendABookToConvertToPDFViaUseCase()
    {
        $input = new ConvertBookToPDFInputDTO('72479eaa-62a8-4ddb-8d6e-4c35c6c7f700');
        $repository = $this->getRepositoryMock();
        $queueSender  = $this->getQueueSenderMock();

        $useCase = new ConvertBookToPDFUseCase($input, $repository, $queueSender);
        $result = $useCase->handle();

        $this->assertInstanceOf(ConvertBookToPDFOutputDTO::class, $result);
    }

    private function getRepositoryMock()
    {
        $stubModel = $this->createMock(Book::class);

        $return = new \stdClass();
        $return->id = 1;
        $return->book_code = '72479eaa-62a8-4ddb-8d6e-4c35c6c7f700';
        $return->title = 'My awesome book title!';
        $return->description = 'Book Description';
        $return->price = 25.9;
        $return->book_path = 'book_path';


        $mock = $this->getMockBuilder(BookEloquentRepository::class)
            ->onlyMethods(['find'])
            ->setConstructorArgs([$stubModel])
            ->getMock();

        $mock->expects($this->once())
            ->method('find')
            ->with('72479eaa-62a8-4ddb-8d6e-4c35c6c7f700')
            ->willReturn($return);

        return $mock;
    }

    private function getQueueSenderMock()
    {
        $mock = $this->getMockBuilder(BookConverterQueueSender::class)
            ->onlyMethods(['sendToQueue'])
            ->getMock();

        $mock->expects($this->once())
            ->method('sendToQueue')
            ->willReturn(true);

        return $mock;
    }
}