diff --git a/tests/LongitudeOne/Spatial/Tests/ORM/Query/GeometryWalkerTest.php b/tests/LongitudeOne/Spatial/Tests/ORM/Query/GeometryWalkerTest.php
index c5bd872..5c940b5 100644
--- a/tests/LongitudeOne/Spatial/Tests/ORM/Query/GeometryWalkerTest.php
+++ b/tests/LongitudeOne/Spatial/Tests/ORM/Query/GeometryWalkerTest.php
@@ -80,7 +80,7 @@ private static function test(
         $query = $entityManager->createQuery($queryString);
         $query->setHint(
             Query::HINT_CUSTOM_OUTPUT_WALKER,
-            'LongitudeOne\Spatial\ORM\Query\GeometryWalker'
+            \LongitudeOne\Spatial\ORM\Query\GeometryWalker::class
         );
 
         $result = $query->getResult();
@@ -94,12 +94,12 @@ private static function test(
             $envelope
         );
         $query = $entityManager->createQuery($queryString);
-        $query->setHint(Query::HINT_CUSTOM_OUTPUT_WALKER, 'LongitudeOne\Spatial\ORM\Query\GeometryWalker');
+        $query->setHint(Query::HINT_CUSTOM_OUTPUT_WALKER, \LongitudeOne\Spatial\ORM\Query\GeometryWalker::class);
 
         $result = $query->getResult();
         static::assertIsArray($result);
-        static::assertInstanceOf('LongitudeOne\Spatial\PHP\Types\Geometry\Polygon', $result[0][1]);
-        static::assertInstanceOf('LongitudeOne\Spatial\PHP\Types\Geometry\Polygon', $result[1][1]);
+        static::assertInstanceOf(\LongitudeOne\Spatial\PHP\Types\Geometry\Polygon::class, $result[0][1]);
+        static::assertInstanceOf(\LongitudeOne\Spatial\PHP\Types\Geometry\Polygon::class, $result[1][1]);
     }
 
     /**
diff --git a/tests/LongitudeOne/Spatial/Tests/SpatialTestCase.php b/tests/LongitudeOne/Spatial/Tests/SpatialTestCase.php
index fdbe176..cf4fd25 100644
--- a/tests/LongitudeOne/Spatial/Tests/SpatialTestCase.php
+++ b/tests/LongitudeOne/Spatial/Tests/SpatialTestCase.php
@@ -92,6 +92,6 @@ protected static function platformIsMySql57(?AbstractPlatform $platform): bool
         return null !== $platform
             && 'Doctrine\DBAL\Platforms\MySQL57Platform' === $platform::class
             || $platform instanceof MySQLPlatform
-            && 'Doctrine\DBAL\Platforms\MySQL80Platform' !== $platform::class;
+            && \Doctrine\DBAL\Platforms\MySQL80Platform::class !== $platform::class;
     }
 }