diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 4abe00d..21f49f9 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1,6 +1,6 @@
 SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR})
 
-ADD_EXECUTABLE(segment.demo segment.cpp)
+ADD_EXECUTABLE(segment.demo segment_demo.cpp)
 ADD_EXECUTABLE(keyword.demo keyword_demo.cpp)
 ADD_EXECUTABLE(tagging.demo tagging_demo.cpp)
 ADD_EXECUTABLE(load_test load_test.cpp)
diff --git a/test/segment.cpp b/test/segment.cpp
deleted file mode 100644
index 3ab250f..0000000
--- a/test/segment.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-#include <iostream>
-#include <fstream>
-#include "../src/MPSegment.hpp"
-#include "../src/HMMSegment.hpp"
-#include "../src/MixSegment.hpp"
-
-using namespace CppJieba;
-
-void cut(const ISegment * seg, const char * const filePath)
-{
-    ifstream ifile(filePath);
-    vector<string> res;
-    string line;
-    while(getline(ifile, line))
-    {
-        if(!line.empty())
-        {
-            res.clear();
-            seg->cut(line, res);
-            cout<<join(res.begin(), res.end(),"/")<<endl;
-        }
-    }
-}
-
-const char * const TEST_FILE = "../test/testdata/testlines.utf8";
-const char * const JIEBA_DICT_FILE = "../dict/jieba.dict.utf8";
-const char * const HMM_DICT_FILE = "../dict/hmm_model.utf8";
-
-int main(int argc, char ** argv)
-{
-    //demo
-    {
-        MPSegment seg(JIEBA_DICT_FILE);
-        if(!seg)
-        {
-            cout<<"seg init failed."<<endl;
-            return false;
-        }
-        cut(&seg, TEST_FILE);
-    }
-    {
-        HMMSegment seg(HMM_DICT_FILE);
-        if(!seg)
-        {
-            cout<<"seg init failed."<<endl;
-            return EXIT_FAILURE;
-        }
-        cut(&seg, TEST_FILE);
-    }
-    {
-        MixSegment seg(JIEBA_DICT_FILE, HMM_DICT_FILE);
-        if(!seg)
-        {
-            cout<<"seg init failed."<<endl;
-            return EXIT_FAILURE;
-        }
-        cut(&seg, TEST_FILE);
-    }
-    return EXIT_SUCCESS;
-}
diff --git a/test/segment_demo.cpp b/test/segment_demo.cpp
new file mode 100644
index 0000000..9103bbb
--- /dev/null
+++ b/test/segment_demo.cpp
@@ -0,0 +1,59 @@
+#include <iostream>
+#include <fstream>
+
+#define LOGGER_LEVEL LL_WARN
+
+#include "../src/MPSegment.hpp"
+#include "../src/HMMSegment.hpp"
+#include "../src/MixSegment.hpp"
+
+using namespace CppJieba;
+
+const char * const TEST_FILE = "../test/testdata/testlines.utf8";
+const char * const JIEBA_DICT_FILE = "../dict/jieba.dict.utf8";
+const char * const HMM_DICT_FILE = "../dict/hmm_model.utf8";
+const char * const USER_DICT_FILE = "../test/testdata/userdict.utf8";
+
+void cut(const ISegment& seg, const char * const filePath)
+{
+    ifstream ifile(filePath);
+    vector<string> words;
+    string line;
+    string res;
+    while(getline(ifile, line))
+    {
+        if(!line.empty())
+        {
+            words.clear();
+            seg.cut(line, words);
+            join(words.begin(), words.end(), res, "/");
+            cout<< res <<endl;
+        }
+    }
+}
+
+
+int main(int argc, char ** argv)
+{
+    {
+        printf("\e[32m%s\e[0m\n", "[demo] MPSegment"); // colorful
+        MPSegment seg(JIEBA_DICT_FILE);
+        cut(seg, TEST_FILE);
+    }
+    {
+        printf("\e[32m%s\e[0m\n", "[demo] HMMSegment"); // colorful
+        HMMSegment seg(HMM_DICT_FILE);
+        cut(seg, TEST_FILE);
+    }
+    {
+        printf("\e[32m%s\e[0m\n", "[demo] MixSegment"); // colorful
+        MixSegment seg(JIEBA_DICT_FILE, HMM_DICT_FILE);
+        cut(seg, TEST_FILE);
+    }
+    {
+        printf("\e[32m%s\e[0m\n", "[demo] MixSegment with UserDict"); // colorful
+        MixSegment seg(JIEBA_DICT_FILE, HMM_DICT_FILE, USER_DICT_FILE);
+        cut(seg, TEST_FILE);
+    }
+    return EXIT_SUCCESS;
+}
diff --git a/test/testdata/testlines.utf8 b/test/testdata/testlines.utf8
index ab08432..18510c8 100644
--- a/test/testdata/testlines.utf8
+++ b/test/testdata/testlines.utf8
@@ -1,11 +1,7 @@
 我来到北京清华大学
 他来到了网易杭研大厦
-杭研
 小明硕士毕业于中国科学院计算所，后在日本京都大学深造
-我来自北京邮电大学。。。 学号 091111xx。。。
-来这里看看别人正在搜索什么吧
 我来到南京市长江大桥
-请在一米线外等候
 人事处女干事
-去医院做B超，叫号123
-B超 T恤
+去医院做B超，编号123
+令狐冲是云计算行业的专家