add test case and fixed bug

Author: slywalker

Test/Case/View/Helper/BoostCakeFormHelperTest.php

@@ -227,6 +227,34 @@ public function testSelectMultipleCheckbox() {
 			'/label'
 		));
 
+		$result = $this->Form->select('name',
+			array(
+				1 => 'one',
+				2 => 'two',
+				3 => 'three'
+			),
+			array(
+				'multiple' => 'checkbox',
+				'class' => 'checkbox-inline',
+				'value' => 2
+			)
+		);
+		$this->assertTags($result, array(
+			array('input' => array('type' => 'hidden', 'name' => 'data[name]', 'value' => '', 'id' => 'name')),
+			array('label' => array('for' => 'Name1', 'class' => 'checkbox-inline')),
+			array('input' => array('type' => 'checkbox', 'name' => 'data[name][]', 'value' => '1', 'id' => 'Name1')),
+			' one',
+			'/label',
+			array('label' => array('for' => 'Name2', 'class' => 'selected checkbox-inline')),
+			array('input' => array('type' => 'checkbox', 'name' => 'data[name][]', 'value' => '2', 'id' => 'Name2', 'checked' => 'checked')),
+			' two',
+			'/label',
+			array('label' => array('for' => 'Name3', 'class' => 'checkbox-inline')),
+			array('input' => array('type' => 'checkbox', 'name' => 'data[name][]', 'value' => '3', 'id' => 'Name3')),
+			' three',
+			'/label'
+		));
+
 		$result = $this->Form->select('name',
 			array(
 				1 => 'bill',

View/Helper/BoostCakeFormHelper.php

@@ -214,14 +214,13 @@ protected function _selectOptions($elements = array(), $parents = array(), $show
 				$option = preg_replace('/<div.*?>/', '', $option);
 				$option = preg_replace('/<\/div>/', '', $option);
 				if (preg_match('/>(<label.*?>)/', $option, $match)) {
+					$class = $attributes['class'];
 					if (preg_match('/.* class="(.*)".*/', $match[1], $classMatch)) {
-						$attributes['class'] = $classMatch[1] . ' ' . $attributes['class'];
-						$match[1] = str_replace('class="' . $classMatch[1] . '"', '', $match[1]);
+						$class = $classMatch[1] . ' ' . $attributes['class'];
+						$match[1] = str_replace(' class="' . $classMatch[1] . '"', '', $match[1]);
 					}
 					$option = $match[1] . preg_replace('/<label.*?>/', ' ', $option);
-					if (isset($attributes['class'])) {
-						$option = preg_replace('/(<label.*?)(>)/', '$1 class="' . $attributes['class'] . '"$2', $option);
-					}
+					$option = preg_replace('/(<label.*?)(>)/', '$1 class="' . $class . '"$2', $option);
 				}
 				$selectOptions[$key] = $option;
 			}