diff --git a/tests/ControllerTest.php b/tests/ControllerTest.php
index 949049b5..45c86418 100644
--- a/tests/ControllerTest.php
+++ b/tests/ControllerTest.php
@@ -77,7 +77,7 @@ public function providePrepareBacktrace()
                         'class' => 'GraphQL\\Language\\Visitor',
                         'type' => '::',
                         'args' => [
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+                            '{"loc":{"start":0,"end":121},"kind":"Document","definitions":[{"loc":{"start":0,"end":121},"kind":"OperationDefinition","name":{"loc":{"start":6,"end":15},"kind":"Name","value":"ReadFiles"},"operation":"query","variableDefinitions":[{"loc":{"start":16,"end":39},"kind":"VariableDefinition","variable":{"loc":{"start":16,"end":23},"kind":"Variable","name":{"loc":{"start":17,"end":23},"kind":"Name","value":"filter"}},"type":{"loc":{"start":25,"end":39},"kind":"NonNullType","type":{"loc":{"start":25,"end":38},"kind":"NamedType","name":{"loc":{"start":25,"end":38},"kind":"Name","value":"FakeInputType"}}},"directives":[]}],"directives":[],"selectionSet":{"loc":{"start":41,"end":121},"kind":"SelectionSet","selections":[{"loc":{"start":45,"end":119},"kind":"Field","name":{"loc":{"start":45,"end":54},"kind":"Name","value":"readFiles"},"arguments":[{"loc":{"start":55,"end":70},"kind":"Argument","value":{"loc":{"start":63,"end":70},"kind":"Variable","name":{"loc":{"start":64,"end":70},"kind":"Name","value":"filter"}},"name":{"loc":{"start":55,"end":61},"kind":"Name","value":"filter"}}],"directives":[],"selectionSet":{"loc":{"start":72,"end":119},"kind":"SelectionSet","selections":[{"loc":{"start":78,"end":115},"kind":"InlineFragment","typeCondition":{"loc":{"start":85,"end":98},"kind":"NamedType","name":{"loc":{"start":85,"end":98},"kind":"Name","value":"FileInterface"}},"directives":[],"selectionSet":{"loc":{"start":99,"end":115},"kind":"SelectionSet","selections":[{"loc":{"start":107,"end":109},"kind":"Field","name":{"loc":{"start":107,"end":109},"kind":"Name","value":"id"},"arguments":[],"directives":[]}]}}]}}]}}]}',
                             'Array',
                         ],
                     ],