107 lines
3.8 KiB
PHP
107 lines
3.8 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\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 FollowApplicationServiceTest extends TestCase
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{
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private AuthorRepository $authorRepository;
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private FollowApplicationService $followApplicationService;
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private FollowRepository $followRepository;
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protected function setUp(): void
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{
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$this->authorRepository = new InMemoryAuthorRepository();
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$this->followRepository = new InMemoryFollowRepository();
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$this->followApplicationService = new FollowApplicationService($this->followRepository, $this->authorRepository);
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}
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/** @test */
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public function givenANonExistingAuthorWhenFollowUseCaseIsExecutedThenAnExceptionShouldBeThrown(): void
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{
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$this->expectException(AuthorDoesNotExist::class);
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$this->followApplicationService->followTo(
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AuthorTestDataBuilder::anAuthorIdentity()->id,
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AuthorTestDataBuilder::anAuthorIdentity()->id,
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);
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}
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/** @test */
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public function givenANonExistingAuthorToFollowWhenFollowUseCaseIsExecutedThenAnExceptionShouldBeThrown(): void
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{
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$this->expectException(AuthorDoesNotExist::class);
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$author = AuthorTestDataBuilder::anAuthor()->build();
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$this->authorRepository->add($author);
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$this->followApplicationService->followTo(
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$author->authorId()->id,
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AuthorTestDataBuilder::anAuthorIdentity()->id,
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);
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}
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/** @test */
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public function givenTwoExistingAuthorsWhenFollowUseCaseIsExecutedThenAnExceptionShouldBeThrown(): void
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{
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$fromAuthor = AuthorTestDataBuilder::anAuthor()->build();
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$toAuthor = AuthorTestDataBuilder::anAuthor()->build();
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$this->authorRepository->add($fromAuthor);
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$this->authorRepository->add($toAuthor);
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$this->followApplicationService->followTo(
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$fromAuthor->authorId()->id,
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$toAuthor->authorId()->id
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);
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$follows = $this->followRepository->toAuthorId($toAuthor->authorId());
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$this->assertCount(1, $follows);
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}
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/** @test */
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public function givenFollowersCountForANonExistingAuthorWhenCountIsRequestedThenAnExceptionShouldBeThrown(): void
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{
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$this->expectException(AuthorDoesNotExist::class);
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$this->followApplicationService->countFollowersOf(
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AuthorTestDataBuilder::anAuthorIdentity()->id
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);
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}
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/** @test */
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public function givenFollowersCountWhenCountIsRequestedThenItShouldReturnTheTotalNumberOfFollowers(): void
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{
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$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($follower3);
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$this->followApplicationService->followTo($follower1->authorId()->id, $author->authorId()->id);
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$this->followApplicationService->followTo($follower2->authorId()->id, $author->authorId()->id);
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$this->followApplicationService->followTo($follower3->authorId()->id, $author->authorId()->id);
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$totalNumberOfFollowers = $this->followApplicationService->countFollowersOf($author->authorId()->id);
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$this->assertSame(3, $totalNumberOfFollowers);
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}
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} |