diff --git a/src/test/java/cn/celess/blog/controller/CommentControllerTest.java b/src/test/java/cn/celess/blog/controller/CommentControllerTest.java
index 2c49e06..dcafc2c 100644
--- a/src/test/java/cn/celess/blog/controller/CommentControllerTest.java
+++ b/src/test/java/cn/celess/blog/controller/CommentControllerTest.java
@@ -14,7 +14,7 @@ import com.fasterxml.jackson.core.type.TypeReference;
 import org.junit.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 
-import java.util.UUID;
+import java.util.List;
 
 import static cn.celess.blog.enmu.ResponseEnum.DATA_IS_DELETED;
 import static cn.celess.blog.enmu.ResponseEnum.SUCCESS;
@@ -36,25 +36,26 @@ public class CommentControllerTest extends BaseTest {
         Article article = articleMapper.getLastestArticle();
         CommentReq commentReq = new CommentReq();
         commentReq.setPagePath("/article/" + article.getId());
-        commentReq.setContent(UUID.randomUUID().toString());
-        commentReq.setPid(-1L);
-        commentReq.setToUserId(-1L);
+        commentReq.setContent(randomStr());
+        List<User> all = userMapper.findAll();
+        commentReq.setPid(1L);
+        commentReq.setToUserId(2l);
         getMockData(post("/user/comment/create"), userLogin(), commentReq).andDo(result -> {
             Response<CommentModel> response = getResponse(result, COMMENT_MODEL_TYPE);
             assertEquals(SUCCESS.getCode(), response.getCode());
             CommentModel model = response.getResult();
             assertNotEquals(0, model.getId());
             assertEquals(commentReq.getPid(), model.getPid().longValue());
-            assertEquals(-1, model.getPid().longValue());
+            assertEquals(1, model.getPid().longValue());
             assertEquals(commentReq.getContent(), model.getContent());
             assertNotNull(model.getDate());
             assertNotNull(model.getFromUser());
-            assertNull(model.getToUser());
+            assertNotNull(model.getToUser());
         });
 
 
         commentReq.setPagePath("/article/" + article.getId());
-        commentReq.setContent(UUID.randomUUID().toString());
+        commentReq.setContent(randomStr());
         commentReq.setPid(-1L);
         commentReq.setToUserId(2);
         getMockData(post("/user/comment/create"), userLogin(), commentReq).andDo(result -> {
@@ -75,7 +76,7 @@ public class CommentControllerTest extends BaseTest {
         // 测试二级回复
         Comment latestComment = commentMapper.getLastestComment();
         commentReq.setPagePath("/article/" + article.getId());
-        commentReq.setContent(UUID.randomUUID().toString());
+        commentReq.setContent(randomStr());
         commentReq.setPid(latestComment.getId());
         getMockData(post("/user/comment/create"), userLogin(), commentReq).andDo(result -> {
             Response<CommentModel> response = getResponse(result, COMMENT_MODEL_TYPE);
@@ -120,7 +121,7 @@ public class CommentControllerTest extends BaseTest {
         Comment comment = commentMapper.getLastestComment();
         CommentReq commentReq = new CommentReq();
         commentReq.setId(comment.getId());
-        commentReq.setContent(UUID.randomUUID().toString());
+        commentReq.setContent(randomStr());
         // 不合法数据 setResponseId
         getMockData(put("/user/comment/update"), userLogin(), commentReq).andDo(result -> {
             Response<CommentModel> response = getResponse(result, COMMENT_MODEL_TYPE);
diff --git a/src/test/java/cn/celess/blog/controller/LinksControllerTest.java b/src/test/java/cn/celess/blog/controller/LinksControllerTest.java
index 8abd274..561ea08 100644
--- a/src/test/java/cn/celess/blog/controller/LinksControllerTest.java
+++ b/src/test/java/cn/celess/blog/controller/LinksControllerTest.java
@@ -11,7 +11,6 @@ import org.junit.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 
 import java.util.List;
-import java.util.UUID;
 
 import static cn.celess.blog.enmu.ResponseEnum.*;
 import static org.junit.Assert.*;
@@ -45,7 +44,7 @@ public class LinksControllerTest extends BaseTest {
         });
 
         // https/http
-        linkReq.setName(UUID.randomUUID().toString().substring(0, 4));
+        linkReq.setName(randomStr(4));
         linkReq.setOpen(false);
         linkReq.setUrl("example.com");
         getMockData(post("/admin/links/create"), adminLogin(), linkReq).andDo(result -> {
@@ -105,7 +104,7 @@ public class LinksControllerTest extends BaseTest {
         LinkReq linkReq = new LinkReq();
         linkReq.setUrl(latest.getUrl());
         linkReq.setOpen(!latest.getOpen());
-        linkReq.setName(UUID.randomUUID().toString().substring(0, 4));
+        linkReq.setName(randomStr(4));
         linkReq.setId(latest.getId());
 
         getMockData(put("/admin/links/update"), adminLogin(), linkReq).andDo(result -> {
diff --git a/src/test/java/cn/celess/blog/controller/UserControllerTest.java b/src/test/java/cn/celess/blog/controller/UserControllerTest.java
index 0d5fed7..6e8872e 100644
--- a/src/test/java/cn/celess/blog/controller/UserControllerTest.java
+++ b/src/test/java/cn/celess/blog/controller/UserControllerTest.java
@@ -68,8 +68,8 @@ public class UserControllerTest extends BaseTest {
 
     @Test
     public void updateInfo() throws Exception {
-        String desc = UUID.randomUUID().toString().substring(0, 4);
-        String disPlayName = UUID.randomUUID().toString().substring(0, 4);
+        String desc = randomStr(4);
+        String disPlayName = randomStr(4);
         getMockData(put("/user/userInfo/update?desc=" + desc + "&displayName=" + disPlayName), userLogin()).andDo(result -> {
             Response<UserModel> response = getResponse(result, USER_MODEL_TYPE);
             assertEquals(SUCCESS.getCode(), response.getCode());
@@ -157,7 +157,7 @@ public class UserControllerTest extends BaseTest {
     public void multipleDelete() throws Exception {
         List<User> userList = new ArrayList<>();
         for (int i = 0; i < 10; i++) {
-            String s = UUID.randomUUID().toString();
+            String s = randomStr();
             String email = s.substring(s.length() - 4) + "@celess.cn";
             String pwd = MD5Util.getMD5("123456789");
             User user = new User(email, pwd);
@@ -202,7 +202,7 @@ public class UserControllerTest extends BaseTest {
         userReq.setEmailStatus(new Random().nextBoolean());
         userReq.setRole("admin");
         userReq.setDisplayName(randomStr(4));
-        userReq.setEmail(randomStr().substring(0, 5) + "@celess.cn");
+        userReq.setEmail(randomStr(5) + "@celess.cn");
         getMockData(put("/admin/user"), adminLogin(), userReq).andDo(result -> {
             Response<UserModel> response = getResponse(result, USER_MODEL_TYPE);
             assertEquals(SUCCESS.getCode(), response.getCode());