--- /dev/null
+<?php
+
+namespace RedUNIT\Mysql;
+
+use RedUNIT\Mysql as Mysql;
+use RedBeanPHP\Facade as R;
+
+/**
+ * Issue 411
+ *
+ * InnoDB has a maximum index length of 767 bytes, so with utf8mb4
+ * you can only store 191 characters. This means that when you
+ * subsequently add an index to the column you get a
+ * (not-so-obvious) MySQL-error. That's why we limit the varchar to
+ * 191 chars and then switch to TEXT type.
+ *
+ * @file RedUNIT/Mysql/Issue411.php
+ * @desc Tests intermediate varchar 191 type for MySQL utf8mb4.
+ * @author Gabor de Mooij and the RedBeanPHP Community
+ * @license New BSD/GPLv2
+ *
+ * (c) G.J.G.T. (Gabor) de Mooij and the RedBeanPHP Community.
+ * This source file is subject to the New BSD/GPLv2 License that is bundled
+ * with this source code in the file license.txt.
+ */
+class Issue411 extends Mysql
+{
+
+ /**
+ * Test varchar 191 condition.
+ *
+ * @return void
+ */
+ public function testInnoDBIndexLimit()
+ {
+ R::nuke();
+ $book = R::dispense( 'book' );
+ $book->text = 'abcd';
+ R::store( $book );
+ $columns = R::inspect( 'book' );
+ asrt( isset( $columns['text'] ), TRUE );
+ asrt( $columns['text'], 'varchar(191)' );
+ $book = $book->fresh();
+ $book->text = str_repeat( 'x', 190 );
+ R::store( $book );
+ $columns = R::inspect( 'book' );
+ asrt( isset( $columns['text'] ), TRUE );
+ asrt( $columns['text'], 'varchar(191)' );
+ $book = $book->fresh();
+ $book->text = str_repeat( 'x', 191 );
+ R::store( $book );
+ $columns = R::inspect( 'book' );
+ asrt( isset( $columns['text'] ), TRUE );
+ asrt( $columns['text'], 'varchar(191)' );
+ $book = $book->fresh();
+ $book->text = str_repeat( 'x', 192 );
+ R::store( $book );
+ $columns = R::inspect( 'book' );
+ asrt( isset( $columns['text'] ), TRUE );
+ asrt( $columns['text'], 'varchar(255)' );
+ }
+}
+