Allow to fetch translation with symlink

spec/Translation/Finder/TranslationFilesFinderSpec.php

@@ -21,23 +21,24 @@
 
 final class TranslationFilesFinderSpec extends ObjectBehavior
 {
-    function let(FinderFactoryInterface $finderFactory): void
+    public function let(FinderFactoryInterface $finderFactory): void
     {
         $this->beConstructedWith($finderFactory);
     }
 
-    function it_implements_translation_resource_finder_interface(): void
+    public function it_implements_translation_resource_finder_interface(): void
     {
         $this->shouldImplement(TranslationFilesFinderInterface::class);
     }
 
-    function it_returns_an_array_of_translation_resources_paths(
+    public function it_returns_an_array_of_translation_resources_paths(
         FinderFactoryInterface $finderFactory,
         Finder $finder,
     ): void {
         $finderFactory->create()->willReturn($finder);
 
         $finder->ignoreUnreadableDirs()->shouldBeCalled()->willReturn($finder);
+        $finder->followLinks()->shouldBeCalled()->willReturn($finder);
         $finder->in('/theme/translations')->shouldBeCalled()->willReturn($finder);
 
         $finder->getIterator()->willReturn(new \ArrayIterator([
@@ -51,13 +52,14 @@ function it_returns_an_array_of_translation_resources_paths(
         ]);
     }
 
-    function it_does_not_provide_any_translation_resources_paths_if_translation_directory_does_not_exist(
+    public function it_does_not_provide_any_translation_resources_paths_if_translation_directory_does_not_exist(
         FinderFactoryInterface $finderFactory,
         Finder $finder,
     ): void {
         $finderFactory->create()->willReturn($finder);
 
         $finder->ignoreUnreadableDirs()->willReturn($finder);
+        $finder->followLinks()->willReturn($finder);
         $finder->in('/theme/translations')->willThrow(DirectoryNotFoundException::class);
 
         $this->findTranslationFiles('/theme')->shouldReturn([]);

src/Translation/Finder/TranslationFilesFinder.php

@@ -54,6 +54,7 @@ private function getFiles(string $path): iterable
 
             $finder
                 ->ignoreUnreadableDirs()
+                ->followLinks()
                 ->in($path . '/translations')
             ;
 

tests/Application/private/translations/messages.fr.yml

@@ -0,0 +1,4 @@
+test:
+    app: 'traductions'
+    theme: 'traductions'
+    parent_theme: 'traductions'

tests/Application/themes/MyTheme/translations/messages.fr.yml

@@ -0,0 +1 @@
+../../../private/translations/messages.fr.yml

tests/Translation/Finder/TranslationFilesFinderTest.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Sylius\Bundle\ThemeBundle\Tests\Translation\Finder;
+
+use PHPUnit\Framework\TestCase;
+use Sylius\Bundle\ThemeBundle\Factory\FinderFactoryInterface;
+use Sylius\Bundle\ThemeBundle\Translation\Finder\TranslationFilesFinder;
+use Symfony\Component\Finder\Finder;
+
+final class TranslationFilesFinderTest extends TestCase
+{
+    /**
+     * @test
+     */
+    public function it_can_follow_symlinks(): void
+    {
+        $finder = new Finder();
+        $finderFactory = $this->createMock(FinderFactoryInterface::class);
+        $finderFactory->method('create')->willReturn($finder);
+
+        $translationsFilesFinder = new TranslationFilesFinder($finderFactory);
+        $files = $translationsFilesFinder->findTranslationFiles('tests/Application/themes/MyTheme');
+
+        $this->assertContains('tests/Application/themes/MyTheme/translations/messages.fr.yml', $files);
+    }
+}