72 lines
2.7 KiB
PHP
72 lines
2.7 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Cheeper\Tests\Application;
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use Cheeper\Application\CountFollowersQuery;
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use Cheeper\Application\CountFollowersQueryHandler;
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use Cheeper\Application\FollowApplicationService;
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use Cheeper\DomainModel\Author\AuthorDoesNotExist;
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use Cheeper\DomainModel\Author\AuthorRepository;
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use Cheeper\DomainModel\Follow\FollowRepository;
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use Cheeper\Infrastructure\Persistence\InMemoryAuthorRepository;
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use Cheeper\Infrastructure\Persistence\InMemoryFollowRepository;
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use Cheeper\Tests\DomainModel\Author\AuthorTestDataBuilder;
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use PHPUnit\Framework\TestCase;
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final class CountFollowersQueryHandlerTest extends TestCase
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{
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private AuthorRepository $authorRepository;
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private FollowRepository $followRepository;
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private FollowApplicationService $followApplicationService;
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private CountFollowersQueryHandler $countFollowersQueryHandler;
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protected function setUp(): void
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{
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$this->authorRepository = new InMemoryAuthorRepository();
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$this->followRepository = new InMemoryFollowRepository();
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$this->followApplicationService = new FollowApplicationService($this->followRepository, $this->authorRepository);
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$this->countFollowersQueryHandler = new CountFollowersQueryHandler($this->authorRepository, $this->followRepository);
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}
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/** @test */
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public function givenFollowersCountForANonExistingAuthorWhenCountIsRequestedThenAnExceptionShouldBeThrown(): void
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{
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$this->expectException(AuthorDoesNotExist::class);
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$authorId = AuthorTestDataBuilder::anAuthorIdentity()->id;
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($this->countFollowersQueryHandler)(
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new CountFollowersQuery($authorId)
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);
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}
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/** @test */
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public function givenFollowersCountWhenCountIsRequestedThenItShouldReturnTheTotalNumberOfFollowers(): void
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{
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$author = AuthorTestDataBuilder::anAuthor()->build();
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$follower1 = AuthorTestDataBuilder::anAuthor()->build();
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$follower2 = AuthorTestDataBuilder::anAuthor()->build();
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$follower3 = AuthorTestDataBuilder::anAuthor()->build();
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$this->authorRepository->add($author);
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$this->authorRepository->add($follower1);
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$this->authorRepository->add($follower2);
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$this->authorRepository->add($follower3);
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$authorId = $author->authorId()->id;
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$this->followApplicationService->followTo($follower1->authorId()->id, $authorId);
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$this->followApplicationService->followTo($follower2->authorId()->id, $authorId);
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$this->followApplicationService->followTo($follower3->authorId()->id, $authorId);
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$totalNumberOfFollowers = ($this->countFollowersQueryHandler)(
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new CountFollowersQuery($authorId)
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);
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$this->assertSame(3, $totalNumberOfFollowers);
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}
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} |