OXDEV-8215 Implemented default language case

src/Shared/Service/LanguageService.php

@@ -23,6 +23,14 @@ public function filterByLanguageAbbreviation(array $data): ?string
         $langId = $this->language->getBaseLanguage();
         $languageAbbr = $this->language->getLanguageAbbr(langId: $langId);
 
-        return $data[$languageAbbr] ?? null;
+        if (isset($data[$languageAbbr])) {
+            return $data[$languageAbbr];
+        }
+
+        if (isset($data['en'])) {
+            return $data['en'];
+        }
+
+        return null;
     }
 }

tests/Unit/Shared/Core/LanguageWrapperTest.php

@@ -13,9 +13,6 @@
 use PHPUnit\Framework\TestCase;
 use OxidEsales\Eshop\Core\Language;
 
-/**
- * @covers \OxidEsales\GraphQL\ConfigurationAccess\Shared\Core\LanguageWrapper;
- */
 class LanguageWrapperTest extends TestCase
 {
     public function testGetBaseLanguage(): void

tests/Unit/Shared/Service/LanguageServiceTest.php

@@ -13,9 +13,6 @@
 use OxidEsales\GraphQL\ConfigurationAccess\Shared\Service\LanguageService;
 use PHPUnit\Framework\TestCase;
 
-/**
- * @covers \OxidEsales\GraphQL\ConfigurationAccess\Shared\Service\LanguageService;
- */
 class LanguageServiceTest extends TestCase
 {
     public function testFilterByLanguageAbbreviationCorrectLangValue()
@@ -36,8 +33,9 @@ public function testFilterByLanguageAbbreviationCorrectLangValue()
         $this->assertSame($actualResult, $expectedResult);
     }
 
-    public function testFilterByLanguageAbbreviationWrongLangValue()
+    public function testFilterByLanguageAbbreviationDefaultedToEnglish()
     {
+        $expectedResult = "Title in en language";
         $titlesData = [
             'de' => 'Title in de language',
             'en' => 'Title in en language',
@@ -50,6 +48,20 @@ public function testFilterByLanguageAbbreviationWrongLangValue()
         $languageService = new LanguageService($languageWrapperMock);
         $actualResult = $languageService->filterByLanguageAbbreviation($titlesData);
 
+        $this->assertSame($expectedResult, $actualResult);
+    }
+
+    public function testFilterByLanguageAbbreviationReturnNull(): void
+    {
+        $titlesData = [];
+
+        $languageWrapperMock = $this->createMock(LanguageWrapperInterface::class);
+        $languageWrapperMock->method('getBaseLanguage')->willReturn(1);
+        $languageWrapperMock->method('getLanguageAbbr')->with(1)->willReturn('de');
+
+        $languageService = new LanguageService($languageWrapperMock);
+        $actualResult = $languageService->filterByLanguageAbbreviation($titlesData);
+
         $this->assertNull($actualResult);
     }
 }