diff --git a/example/tests/ExampleTest.php b/example/tests/ExampleTest.php
index 0bd11d3..2289043 100644
--- a/example/tests/ExampleTest.php
+++ b/example/tests/ExampleTest.php
@@ -8,6 +8,7 @@
 // +----------------------------------------------------------------------
 // | Author: yunwuxin <448901948@qq.com>
 // +----------------------------------------------------------------------
+namespace tests;
 
 class ExampleTest extends TestCase
 {
diff --git a/example/tests/TestCase.php b/example/tests/TestCase.php
index ddc5d1e..6237a68 100644
--- a/example/tests/TestCase.php
+++ b/example/tests/TestCase.php
@@ -8,6 +8,7 @@
 // +----------------------------------------------------------------------
 // | Author: yunwuxin <448901948@qq.com>
 // +----------------------------------------------------------------------
+namespace tests;
 
 class TestCase extends \think\testing\TestCase
 {
diff --git a/src/command/Test.php b/src/command/Test.php
index 854f34a..3a10f09 100644
--- a/src/command/Test.php
+++ b/src/command/Test.php
@@ -28,8 +28,8 @@ public function configure()
 
     public function execute(Input $input, Output $output)
     {
-        Loader::addClassMap('TestCase', ROOT_PATH . 'tests/TestCase.php');
-        Loader::addClassMap('think\App', CORE_PATH . 'App' . EXT);
+        //注册命名空间
+        Loader::addNamespace('tests', ROOT_PATH . 'tests');
 
         Session::init();
         $argv = $_SERVER['argv'];