diff --git a/llvm_test_script/plugin/Clang Plugin test manual.md b/llvm_test_script/plugin/ClangPluginTestManual.md
similarity index 90%
rename from llvm_test_script/plugin/Clang Plugin test manual.md
rename to llvm_test_script/plugin/ClangPluginTestManual.md
index ca27ae5cdf72bd11f9a3b367c8e54a0f74abfccd..4bba1685cd84f2db47d068b8027a8e242651a673 100644
--- a/llvm_test_script/plugin/Clang Plugin test manual.md	
+++ b/llvm_test_script/plugin/ClangPluginTestManual.md
@@ -1,6 +1,6 @@
 # Clang Plugin 测试框架指南
 
-Clang Plugin测试框架基于Python Unittest2开发，提供 [Clang Plugins](https://clang.llvm.org/docs/ClangPlugins.html) 端测编译和生成物检查等功能。
+Clang Plugin测试框架基于Python Unittest开发，提供 [Clang Plugins](https://clang.llvm.org/docs/ClangPlugins.html) 端测编译和生成物检查等功能。
 
 ## 1. 测试框架功能介绍
 
@@ -8,6 +8,7 @@ Clang Plugin测试框架基于Python Unittest2开发，提供 [Clang Plugins](ht
 
 ```
 --| TestCase			# 测试用例模块的目录
+	--| __init__.py		# 将本文件夹变成一个可识别的测试模块
 	--| test.py			# 测试用例模块，其中包含了相关的测试用例
 	--| test.cpp		# 测试用例使用的c/c++测试程序
 --| runtest.py			# 测试框架入口
@@ -16,7 +17,7 @@ Clang Plugin测试框架基于Python Unittest2开发，提供 [Clang Plugins](ht
 
 ### 1.2 TestBase 功能介绍
 
-该类继承于unittest2.TestCase，以便于能够自动的发现用例和收集统计用例执行结果。
+该类继承于unittest.TestCase，以便于能够自动的发现用例和收集统计用例执行结果。
 
 该类提供如下方法，便于开发者实现Plugin测试用例：
 
@@ -134,7 +135,9 @@ Clang Plugin测试框架基于Python Unittest2开发，提供 [Clang Plugins](ht
 
 上述用例模块是针对Plugin：print-fns的测试，该plugin的功能是输出所有的top-level函数名称。
 
-其中测试用例test_01：测试plugin print-fns的功能是否符合预期
+每个测试用例模块文件夹下需要添加空文件\_\_init\_\_.py。如无此文件，测试框架将无法识别到次测试用例模块。
+
+测试用例test_01：测试plugin print-fns的功能是否符合预期
 
 ```
 def test_01(self):
@@ -160,7 +163,7 @@ def test_01(self):
                         'Terminal output does not meet expectations')
 ```
 
-其中测试用例test_02：测试plugin print-fns是否影响最终生成物可执行程序
+测试用例test_02：测试plugin print-fns是否影响最终生成物可执行程序
 
 ```
 def test_02(self):
diff --git a/llvm_test_script/plugin/PrintFunctionNames/__init__.py b/llvm_test_script/plugin/PrintFunctionNames/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/llvm_test_script/plugin/Testbase.py b/llvm_test_script/plugin/Testbase.py
index f5aa3f01b26a192b7003520cb715fe4e5285702c..dd2166cbaab92dabd8a0d166b83f567066eb80a2 100644
--- a/llvm_test_script/plugin/Testbase.py
+++ b/llvm_test_script/plugin/Testbase.py
@@ -1,5 +1,5 @@
 import subprocess
-import unittest2
+import unittest
 import os
 
 class CompileResult():
@@ -7,13 +7,13 @@ class CompileResult():
         self.returncode = returncode
         self.out = 'stdout: ' + stdout + ';\n' + 'stderr: ' + stderr
 
-class TestBase(unittest2.TestCase):
+class TestBase(unittest.TestCase):
     
     def pluginAssert(self, expr, msg=None):
         """Check that the expression is true."""
         if not expr:
             raise self.failureException('PluginTest: ' + msg)
-        
+
     def compile(self, compiler_path, source_file_path, compile_mode,
                 output_file_name, output_dir=None,
                 plugin_name=None, plugin_so_path=None, args=""):
@@ -29,7 +29,7 @@ class TestBase(unittest2.TestCase):
                 os.makedirs(output_dir)
         elif not os.path.isdir(output_dir):
             return CompileResult(1, "", "Invalid output path.")
-        
+
         output = os.path.join(output_dir, output_file_name)
 
         if compile_mode == '-cc1':
@@ -72,27 +72,27 @@ class TestBase(unittest2.TestCase):
 
         process_result = subprocess.run(cmd, 
                                         stdout=subprocess.PIPE,
-                                        stderr=subprocess.PIPE, 
-                                        shell=True, 
+                                        stderr=subprocess.PIPE,
+                                        shell=True,
                                         encoding="utf-8")
 
-        ret = CompileResult(process_result.returncode, 
-                            process_result.stdout, 
+        ret = CompileResult(process_result.returncode,
+                            process_result.stdout,
                             process_result.stderr)
         return ret
-    
+
     def match_num(self, pattern, file):
         """
         count match number.
         """
         cmd = 'grep -c ' + pattern + ' ' + file
-        ret = subprocess.run(cmd, 
+        ret = subprocess.run(cmd,
                        stdout=subprocess.PIPE,
-                       stderr=subprocess.PIPE, 
-                       shell=True, 
+                       stderr=subprocess.PIPE,
+                       shell=True,
                        encoding="utf-8")
         return int(ret.stdout)
-    
+
     def match_lines(self, pattern, file):
         """
         show the match lines.
@@ -100,7 +100,7 @@ class TestBase(unittest2.TestCase):
         cmd = 'grep -n ' + pattern + ' ' + file
         ret = subprocess.run(cmd, 
                        stdout=subprocess.PIPE,
-                       stderr=subprocess.PIPE, 
+                       stderr=subprocess.PIPE,
                        shell=True, 
                        encoding="utf-8")
         return ret.stdout
diff --git a/llvm_test_script/plugin/runtest.py b/llvm_test_script/plugin/runtest.py
index 9e2ab576fe9f7635aa480472cf72ae845ce8ac8a..f6a0b3a80cce915adba8281f12c86fc74c940e49 100644
--- a/llvm_test_script/plugin/runtest.py
+++ b/llvm_test_script/plugin/runtest.py
@@ -1,6 +1,6 @@
 import argparse
 import platform
-import unittest2
+import unittest
 import sys
 import os
 
@@ -8,8 +8,8 @@ class RunTest:
     args = None
     test_dir = None
     test_name = None
-    suite = unittest2.TestSuite()
-    loader = unittest2.TestLoader()
+    suite = unittest.TestSuite()
+    loader = unittest.TestLoader()
     failureException = Exception
 
     def __init__(self):
@@ -80,7 +80,7 @@ class RunTest:
     def run_test(self):
         if self.check_args():
             self.discover_cases()
-            runner = unittest2.TextTestRunner(verbosity=2)
+            runner = unittest.TextTestRunner(verbosity=2)
             runner.run(self.suite)
         else:
              print('Please input cerrent test case save path.')