Initial commit，修正

vendor/yiisoft/yii2-bootstrap5/tests/data/ExtendedActiveField.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace yiiunit\extensions\bootstrap5\data;
+
+use yii\bootstrap5\ActiveField;
+
+/**
+ * A customized extension from ActiveField
+ *
+ * @see \yiiunit\extensions\bootstrap5\ActiveFieldTest::testHorizontalCssClassesOverride()
+ *
+ * @author Michael Härtl <haertl.mike@gmail.com>
+ */
+class ExtendedActiveField extends ActiveField
+{
+    public ?array $horizontalCssClasses = [
+        'offset' => 'col-md-offset-4',
+        'label' => 'col-md-4',
+        'wrapper' => 'col-md-6',
+        'error' => 'col-md-3',
+        'hint' => 'col-md-3',
+    ];
+}