public function testModifyColumnNullAttribute()
{
// column type is required for MySQL to modify
$column = new Column('name', 'text');
$column->null();
$q = new AlterTableQuery('products');
$q->modifyColumn($column);
$this->assertDriverQuery(new MySQLDriver(), $q);
$this->assertSqlStrings($q, [[new MySQLDriver(), 'ALTER TABLE `products` MODIFY COLUMN `name` text NULL']]);
}