[ticket/15396] Added test for correct order of revert_schema() steps

PHPBB3-15396

tests/dbal/migration/revert_table_with_dependency.php

@@ -0,0 +1,52 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+class phpbb_dbal_migration_revert_table_with_dependency extends \phpbb\db\migration\migration
+{
+	static public function depends_on()
+	{
+		return array('phpbb_dbal_migration_revert_table');
+	}
+
+	function update_schema()
+	{
+		return array(
+			'add_columns' => array(
+				'phpbb_foobar' => array(
+					'baz_column' => array('UINT', 1),
+				),
+			),
+			'drop_columns' => array(
+				'phpbb_foobar' => array(
+					'bar_column',
+				),
+			),
+		);
+	}
+
+	function revert_schema()
+	{
+		return array(
+			'add_columns' => array(
+				'phpbb_foobar' => array(
+					'bar_column' => array('UINT', 1),
+				),
+			),
+			'drop_columns' => array(
+				'phpbb_foobar' => array(
+					'baz_column',
+				),
+			),
+		);
+	}
+}