diff --git a/tests/framework/data/DataFilterTest.php b/tests/framework/data/DataFilterTest.php
index 24908539808..5408ca1d287 100644
--- a/tests/framework/data/DataFilterTest.php
+++ b/tests/framework/data/DataFilterTest.php
@@ -332,6 +332,18 @@ public function dataProviderNormalize()
                     ],
                 ],
             ],
+            [
+                [
+                    'name' => [
+                        'like' => 'foo',
+                    ],
+                ],
+                [
+                    'name' => [
+                        'LIKE' => 'foo',
+                    ],
+                ],
+            ],
             [
                 [
                     'and' => [