diff --git a/tests/thinkphp/library/think/viewTest.php b/tests/thinkphp/library/think/viewTest.php
index c8efaee5..56804798 100644
--- a/tests/thinkphp/library/think/viewTest.php
+++ b/tests/thinkphp/library/think/viewTest.php
@@ -38,9 +38,12 @@ class viewTest extends \PHPUnit_Framework_TestCase
      */
     public function testAssign()
     {
-        $view_instance = \think\View::instance();
-        $data          = $view_instance->assign(array('key' => 'value'));
-        $data          = $view_instance->assign('key2', 'value2');
+        $view_instance      = \think\View::instance();
+        $view_instance->key = 'value';
+        $this->assertTrue(isset($view_instance->key));
+        $this->assertEquals('value', $view_instance->key);
+        $data = $view_instance->assign(array('key' => 'value'));
+        $data = $view_instance->assign('key2', 'value2');
         //测试私有属性
         $expect_data = array('key' => 'value', 'key2' => 'value2');
         $this->assertAttributeEquals($expect_data, 'data', $view_instance);
@@ -54,6 +57,7 @@ class viewTest extends \PHPUnit_Framework_TestCase
     public function testEngine()
     {
         $view_instance = \think\View::instance();
+        $data          = $view_instance->engine('php');
         $data          = $view_instance->engine(['type' => 'php', 'view_path' => '', 'view_suffix' => '.php', 'view_depr' => DS]);
         $php_engine    = new \think\view\driver\Php(['view_path' => '', 'view_suffix' => '.php', 'view_depr' => DS]);
         $this->assertAttributeEquals($php_engine, 'engine', $view_instance);
@@ -63,4 +67,10 @@ class viewTest extends \PHPUnit_Framework_TestCase
         $this->assertAttributeEquals($think_engine, 'engine', $view_instance);
     }
 
+    public function testReplace()
+    {
+        $view_instance = \think\View::instance();
+        $view_instance->replace('string', 'replace')->display('string');
+    }
+
 }