diff --git a/test/testdata/userdict.2.utf8 b/test/testdata/userdict.2.utf8
new file mode 100644
index 0000000..fd38536
--- /dev/null
+++ b/test/testdata/userdict.2.utf8
@@ -0,0 +1 @@
+千树万树梨花开
diff --git a/test/testdata/userdict.utf8 b/test/testdata/userdict.utf8
index 1f40407..6477fef 100644
--- a/test/testdata/userdict.utf8
+++ b/test/testdata/userdict.utf8
@@ -4,3 +4,4 @@ A
 B
 iPhone6
 蓝翔 nz
+忽如一夜春风来
diff --git a/test/unittest/segments_test.cpp b/test/unittest/segments_test.cpp
index 8436010..691710e 100644
--- a/test/unittest/segments_test.cpp
+++ b/test/unittest/segments_test.cpp
@@ -84,31 +84,37 @@ TEST(MixSegmentTest, UserDict) {
     ASSERT_EQ("[\"IBM\", \",\", \"3.14\"]", res);
   }
 }
-TEST(MixSegmentTest, UserDict2) {
-  MixSegment segment("../test/testdata/extra_dict/jieba.dict.small.utf8", "../dict/hmm_model.utf8", "../test/testdata/userdict.utf8");
-  {
-    const char* str = "令狐冲是云计算方面的专家";
-    vector<string> words;
-    segment.cut(str, words);
-    string res;
-    ASSERT_EQ("[\"令狐冲\", \"是\", \"云计算\", \"方面\", \"的\", \"专家\"]", res << words);
-  }
-  {
-    const char* str = "小明先就职于IBM,后在日本京都大学深造";
-    vector<string> words;
-    segment.cut(str, words);
-    string res;
-    res << words;
-    ASSERT_EQ("[\"小明\", \"先\", \"就职\", \"于\", \"I\", \"B\", \"M\", \",\", \"后\", \"在\", \"日本\", \"京都大学\", \"深造\"]", res);
-  }
-  {
-    const char* str = "IBM,3.14";
-    vector<string> words;
-    segment.cut(str, words);
-    string res;
-    res << words;
-    ASSERT_EQ("[\"I\", \"B\", \"M\", \",\", \"3.14\"]", res);
-  }
+TEST(MixSegmentTest, TestUserDict) {
+  MixSegment segment("../test/testdata/extra_dict/jieba.dict.small.utf8", "../dict/hmm_model.utf8", 
+        "../test/testdata/userdict.utf8");
+  vector<string> words;
+  string res;
+
+  segment.cut("令狐冲是云计算方面的专家", words);
+  ASSERT_EQ("[\"令狐冲\", \"是\", \"云计算\", \"方面\", \"的\", \"专家\"]", res << words);
+
+  segment.cut("小明先就职于IBM,后在日本京都大学深造", words);
+  res << words;
+  ASSERT_EQ("[\"小明\", \"先\", \"就职\", \"于\", \"I\", \"B\", \"M\", \",\", \"后\", \"在\", \"日本\", \"京都大学\", \"深造\"]", res);
+
+  segment.cut("IBM,3.14", words);
+  res << words;
+  ASSERT_EQ("[\"I\", \"B\", \"M\", \",\", \"3.14\"]", res);
+
+  segment.cut("忽如一夜春风来，千树万树梨花开", words);
+  res = limonp::join(words.begin(), words.end(), "/");
+  ASSERT_EQ("忽如一夜春风来/，/千树/万树/梨花/开", res);
+}
+
+TEST(MixSegmentTest, TestMultiUserDict) {
+  MixSegment segment("../test/testdata/extra_dict/jieba.dict.small.utf8", "../dict/hmm_model.utf8", 
+        "../test/testdata/userdict.utf8:../test/testdata/userdict.2.utf8");
+  vector<string> words;
+  string res;
+
+  segment.cut("忽如一夜春风来，千树万树梨花开", words);
+  res = limonp::join(words.begin(), words.end(), "/");
+  ASSERT_EQ("忽如一夜春风来/，/千树万树梨花开", res);
 }
 
 TEST(MPSegmentTest, Test1) {