diff --git a/tests/src/Kernel/Plugin/query_type/SearchApiDateTest.php b/tests/src/Kernel/Plugin/query_type/SearchApiDateTest.php
index bf3b5a0..2d5cd6c 100644
--- a/tests/src/Kernel/Plugin/query_type/SearchApiDateTest.php
+++ b/tests/src/Kernel/Plugin/query_type/SearchApiDateTest.php
@@ -275,6 +275,59 @@ class SearchApiDateTest extends KernelTestBase {
     ];
   }
 
+  /**
+   * Tests date query type with relative configuration.
+   */
+  public function testRelativeConfig() {
+    $query = new SearchApiQuery([], 'search_api_query', []);
+    $facet = new Facet([], 'facets_facet');
+    $facet->addProcessor([
+      'processor_id' => 'date_item',
+      'weights' => [],
+      'settings' => [
+        'date_display' => 'config_relative',
+      ],
+    ]);
+
+    $original_results = [
+      ['count' => 1, 'filter' => '1264250230'],
+      ['count' => 1, 'filter' => '1464926723'],
+      ['count' => 1, 'filter' => '1465930475'],
+      // This should map to today.
+      ['count' => 1, 'filter' => \Drupal::time()->getRequestTime()],
+      // This should map to yesterday.
+      ['count' => 1, 'filter' => \Drupal::time()->getRequestTime() - 86450],
+      // This should map to tomorrow.
+      ['count' => 1, 'filter' => \Drupal::time()->getRequestTime() + 86450],
+    ];
+
+    $config = [
+      'facet' => $facet,
+      'query' => $query,
+      'results' => $original_results,
+    ];
+
+    $query_type = new SearchApiDate($config, 'search_api_date', []);
+    $built_facet = $query_type->build();
+    $this->assertInstanceOf(FacetInterface::class, $built_facet);
+
+    $results = $built_facet->getResults();
+    $this->assertInternalType('array', $results);
+
+    // Reset the results to an array without the proper keys, to make it a lot
+    // easier to check for the correct grouping.
+    $results = array_values($results);
+    $this->assertCount(4, $results);
+    $this->assertEquals('Older', $results[0]->getDisplayValue());
+    $this->assertEquals(3, $results[0]->getCount());
+    $this->assertEquals('Today', $results[1]->getDisplayValue());
+    $this->assertEquals(1, $results[1]->getCount());
+    $this->assertEquals('Yesterday', $results[2]->getDisplayValue());
+    $this->assertEquals(1, $results[2]->getCount());
+    $this->assertEquals('Tomorrow', $results[3]->getDisplayValue());
+    $this->assertEquals(1, $results[3]->getCount());
+  }
+
   /**
    * Tests string query type without results.
    */