Add a test

Author: alexpott

tests/fixtures/drupal/modules/pre_render_callback_rule/src/RenderCallbackInterfaceObject.php

@@ -0,0 +1,25 @@
+<?php declare(strict_types=1);
+
+namespace Drupal\pre_render_callback_rule;
+
+use Drupal\Core\Render\Element\RenderCallbackInterface;
+use Drupal\Core\Url;
+
+final class RenderCallbackInterfaceObject implements RenderCallbackInterface {
+
+    public function staticCallback(): array {
+        return [
+            '#type' => 'link',
+            '#url' => Url::fromRoute('<front>'),
+            '#title' => 'FooBar',
+            '#pre_render' => [
+                [$this, 'preRenderCallback'],
+            ]
+        ];
+    }
+
+    public static function preRenderCallback(array $element) {
+        return $element;
+    }
+
+}

tests/src/Rules/PreRenderCallbackRuleTest.php

@@ -65,6 +65,10 @@ public function fileData(): \Generator
             __DIR__ . '/../../fixtures/drupal/modules/pre_render_callback_rule/src/RenderArrayWithPreRenderCallback.php',
             []
         ];
+        yield [
+            __DIR__ . '/../../fixtures/drupal/modules/pre_render_callback_rule/src/RenderCallbackInterfaceObject.php',
+            []
+        ];
         yield [
             __DIR__ . '/../../fixtures/drupal/modules/pre_render_callback_rule/src/FormWithClosure.php',
             [