diff --git a/Tests/Functional/Connection/Elasticsearch/AbstractFunctionalTestCase.php b/Tests/Functional/Connection/Elasticsearch/AbstractFunctionalTestCase.php
index 363ad6d..1ecdd38 100644
--- a/Tests/Functional/Connection/Elasticsearch/AbstractFunctionalTestCase.php
+++ b/Tests/Functional/Connection/Elasticsearch/AbstractFunctionalTestCase.php
@@ -44,12 +44,13 @@ abstract class AbstractFunctionalTestCase extends BaseFunctionalTestCase
             'port' => getenv('ES_PORT') ?: \Elastica\Connection::DEFAULT_PORT,
         ]);
 
+        // Start with clean system for test.
         $this->cleanUp();
     }
 
     public function tearDown()
     {
-        // Delete everything so next test starts clean.
+        // Make system clean again.
         $this->cleanUp();
     }
 
diff --git a/Tests/Functional/Connection/Elasticsearch/FilterTest.php b/Tests/Functional/Connection/Elasticsearch/FilterTest.php
index 3492e06..3a0ead8 100644
--- a/Tests/Functional/Connection/Elasticsearch/FilterTest.php
+++ b/Tests/Functional/Connection/Elasticsearch/FilterTest.php
@@ -53,9 +53,42 @@ class FilterTest extends AbstractFunctionalTestCase
         $result = $searchService->search($searchRequest);
         $this->assertSame(2, count($result), 'Did not receive both indexed elements without filter.');
 
-        $searchRequest->setFilter(['CType' => 'html']);
+        $searchRequest->setFilter(['CType' => 'HTML']);
         $result = $searchService->search($searchRequest);
         $this->assertSame('5', $result->getResults()[0]['uid'], 'Did not get the expected result entry.');
         $this->assertSame(1, count($result), 'Did not receive the single filtered element.');
     }
+
+    /**
+     * @test
+     */
+    public function itsPossibleToFetchFacetsForField()
+    {
+        \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(ObjectManager::class)
+            ->get(IndexerFactory::class)
+            ->getIndexer('tt_content')
+            ->indexAllDocuments()
+            ;
+
+        $searchService = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(ObjectManager::class)
+            ->get(SearchService::class);
+
+        $searchRequest = new SearchRequest('Search Word');
+        $result = $searchService->search($searchRequest);
+
+        $this->assertSame(1, count($result->getFacets()), 'Did not receive the single defined facet.');
+
+        $facet = $result->getFacets()[0];
+        $this->assertSame('contentTypes', $facet->getName(), 'Name of facet was not as expected.');
+        $this->assertSame('CType', $facet->getField(), 'Field of facet was not expected.');
+
+        $options = $facet->getOptions();
+        $this->assertSame(2, count($options), 'Did not receive the expected number of possible options for facet.');
+        $option = $options[0];
+        $this->assertSame('HTML', $option->getName(), 'Option did not have expected Name.');
+        $this->assertSame(1, $option->getCount(), 'Option did not have expected count.');
+        $option = $options[1];
+        $this->assertSame('Header', $option->getName(), 'Option did not have expected Name.');
+        $this->assertSame(1, $option->getCount(), 'Option did not have expected count.');
+    }
 }
diff --git a/Tests/Functional/Fixtures/BasicSetup.ts b/Tests/Functional/Fixtures/BasicSetup.ts
index 72163e3..094fd07 100644
--- a/Tests/Functional/Fixtures/BasicSetup.ts
+++ b/Tests/Functional/Fixtures/BasicSetup.ts
@@ -11,6 +11,20 @@ plugin {
             indexing {
                 tt_content {
                     indexer = Leonmrni\SearchCore\Domain\Index\TcaIndexer
+
+                    mapping {
+                        CType {
+                            type = keyword
+                        }
+                    }
+                }
+            }
+
+            searching {
+                facets {
+                    contentTypes {
+                        field = CType
+                    }
                 }
             }
         }