diff --git a/tests/phpunit/tests/image/functions.php b/tests/phpunit/tests/image/functions.php
index c2c5ffe39d..8dbadd3886 100644
--- a/tests/phpunit/tests/image/functions.php
+++ b/tests/phpunit/tests/image/functions.php
@@ -359,6 +359,10 @@ class Tests_Image_Functions extends WP_UnitTestCase {
 		unlink( $file );
 	}
 
+	public function filter_image_editor_output_format() {
+		return array_fill_keys( array( 'image/jpg', 'image/jpeg', 'image/png' ), 'image/webp' );
+	}
+
 	/**
 	 * @requires function imagejpeg
 	 */
@@ -678,10 +682,6 @@ class Tests_Image_Functions extends WP_UnitTestCase {
 		}
 	}
 
-	public function filter_image_editor_output_format() {
-		return array_fill_keys( array( 'image/jpg', 'image/jpeg', 'image/png' ), 'image/webp' );
-	}
-
 	public function filter_fallback_intermediate_image_sizes( $fallback_sizes, $metadata ) {
 		// Add the 'test-size' to the list of fallback sizes.
 		$fallback_sizes[] = 'test-size';