diff --git a/composer.json b/composer.json
index 44193e00..afd54a59 100644
--- a/composer.json
+++ b/composer.json
@@ -43,7 +43,6 @@
             "Ibexa\\Bundle\\Solr\\": "src/bundle/",
             "Ibexa\\Contracts\\Solr\\": "src/contracts/",
             "Ibexa\\Tests\\Solr\\SetupFactory\\": "tests/lib/SetupFactory/",
-            "Ibexa\\Tests\\Integration\\Solr\\": "tests/integration/",
             "EzSystems\\EzPlatformSolrSearchEngine\\": "src/lib/",
             "EzSystems\\EzPlatformSolrSearchEngineBundle\\": "src/bundle/",
             "EzSystems\\EzPlatformSolrSearchEngine\\Tests\\SetupFactory\\": "tests/lib/SetupFactory/"
diff --git a/tests/integration/IbexaTestKernel.php b/src/contracts/Test/IbexaSolrTestKernel.php
similarity index 83%
rename from tests/integration/IbexaTestKernel.php
rename to src/contracts/Test/IbexaSolrTestKernel.php
index 6c505e52..6c05ab83 100644
--- a/tests/integration/IbexaTestKernel.php
+++ b/src/contracts/Test/IbexaSolrTestKernel.php
@@ -6,16 +6,22 @@
  */
 declare(strict_types=1);
 
-namespace Ibexa\Tests\Integration\Solr;
+namespace Ibexa\Contracts\Solr\Test;
 
 use Ibexa\Bundle\Solr\IbexaSolrBundle;
 use Ibexa\Contracts\Core\Search\Handler;
 use Ibexa\Contracts\Core\Test\IbexaTestKernel as BaseIbexaTestKernel;
 use Ibexa\Solr\Handler as SolrHandler;
+use Ibexa\Solr\Test\SolrTestContainerBuilder;
 use Symfony\Component\Config\Loader\LoaderInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 
-final class IbexaTestKernel extends BaseIbexaTestKernel
+/**
+ * @internal
+ *
+ * Exposed in contracts to be able to run tests from ibexa/core.
+ */
+final class IbexaSolrTestKernel extends BaseIbexaTestKernel
 {
     public function registerBundles(): iterable
     {
diff --git a/tests/integration/SolrTestContainerBuilder.php b/src/lib/Test/SolrTestContainerBuilder.php
similarity index 98%
rename from tests/integration/SolrTestContainerBuilder.php
rename to src/lib/Test/SolrTestContainerBuilder.php
index c57d8f97..33166d52 100644
--- a/tests/integration/SolrTestContainerBuilder.php
+++ b/src/lib/Test/SolrTestContainerBuilder.php
@@ -6,7 +6,7 @@
  */
 declare(strict_types=1);
 
-namespace Ibexa\Tests\Integration\Solr;
+namespace Ibexa\Solr\Test;
 
 use Ibexa\Tests\Integration\Core\Repository\SearchServiceTranslationLanguageFallbackTest;
 use RuntimeException;
diff --git a/tests/lib/SetupFactory/LegacySetupFactory.php b/tests/lib/SetupFactory/LegacySetupFactory.php
index 8fc1d93b..cece8115 100644
--- a/tests/lib/SetupFactory/LegacySetupFactory.php
+++ b/tests/lib/SetupFactory/LegacySetupFactory.php
@@ -18,7 +18,7 @@
 use Ibexa\Solr\Container\Compiler;
 use Ibexa\Solr\Gateway\UpdateSerializerInterface;
 use Ibexa\Solr\Handler as SolrSearchHandler;
-use Ibexa\Tests\Integration\Solr\SolrTestContainerBuilder;
+use Ibexa\Solr\Test\SolrTestContainerBuilder;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Definition;
 use Symfony\Component\HttpClient\HttpClient;