IBX-11146: Test for solr search with many (50+) languages

tests/integration/Core/Repository/SearchServiceManyLanguagesTest.php

@@ -0,0 +1,61 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Tests\Integration\Core\Repository;
+
+use Exception;
+use Ibexa\Contracts\Core\Repository\Values\Content\Query;
+use Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion;
+
+/**
+ * @group integration
+ * @group search
+ */
+final class SearchServiceManyLanguagesTest extends BaseTest
+{
+    public function testFindContentWithManyLanguages(): void
+    {
+        $repository = $this->getRepository();
+        $languageService = $repository->getContentLanguageService();
+        $searchService = $repository->getSearchService();
+
+        // Create 50 languages to trigger maxBooleanClauses (usually 1024)
+        $languages = ['eng-GB'];
+        for ($i = 0; $i < 50; ++$i) {
+            $code = sprintf('tst-%02d', $i);
+            $langCreateStruct = $languageService->newLanguageCreateStruct();
+            $langCreateStruct->languageCode = $code;
+            $langCreateStruct->name = "Test Language $i";
+            $langCreateStruct->enabled = true;
+
+            try {
+                $languageService->createLanguage($langCreateStruct);
+            } catch (Exception $e) {
+                // Ignore if already exists
+            }
+            $languages[] = $code;
+        }
+
+        $query = new Query();
+        $query->filter = new Criterion\MatchAll();
+        $query->limit = 1;
+
+        $languageSettings = [
+            'languages' => $languages,
+            'useAlwaysAvailable' => true,
+        ];
+
+        // This should not throw maxBooleanClauses exception
+        try {
+            $result = $searchService->findContent($query, $languageSettings);
+        } catch (Exception $e) {
+            $this->fail('Search failed with many languages: ' . $e->getMessage());
+        }
+        $this->assertGreaterThan(0, $result->totalCount);
+    }
+}