Fixing type of namespace to text

src/test/java/at/ac/uibk/gitsearch/service/gitlab_events/GitlabEventServiceIT.java

@@ -233,14 +233,10 @@ public class GitlabEventServiceIT {
             final long countAfter = elasticSearchRepository.countByProjectId(projectId);
             assertEquals("Project " + projectId + " should be reindexed (May be a race condition)", countBefore, countAfter);
 
-            final List<String> idsByNamespacePrefix = elasticSearchRepository.getIdsByNamespacePrefix(
-                collectionCommitEvent.getProject().getNamespace()
-            );
+            final String namespace = collectionCommitEvent.getProject().getNamespace();
+            final List<String> idsByNamespacePrefix = elasticSearchRepository.getIdsByNamespacePrefix(namespace);
 
-            assertTrue(
-                "Namespace " + collectionCommitEvent.getProject().getNamespace() + " should contain at least all project ids",
-                countAfter <= idsByNamespacePrefix.size()
-            );
+            assertTrue("Namespace " + namespace + " should contain at least all project ids", countAfter <= idsByNamespacePrefix.size());
         }
     }