Added the commentaire field to the tests:

tests/functional/Finder/CounterpartFinderTest.php

@@ -25,6 +25,7 @@ class CounterpartFinderTest extends FunctionalTest
             'pdf_id' => '1',
             'pdf_nom' => 'Main',
             'pdf_url' => 'pdf',
+            'commentaire' => '',
         ];
         $this->assertEquals($expectedCounterpart, $firstCounterpart);
     }