diff --git a/include/libs/tfs/tfs.h b/include/libs/tfs/tfs.h
index a6a3c63a50..709d053414 100644
--- a/include/libs/tfs/tfs.h
+++ b/include/libs/tfs/tfs.h
@@ -148,7 +148,7 @@ int32_t tfsMkdirRecur(STfs *pTfs, const char *rname);
  * @return int32_t 0 for success, -1 for failure.
  */
 int32_t tfsMkdirRecurAt(STfs *pTfs, const char *rname, SDiskID diskId);
-
+#if 0
 /**
  * @brief check directories exist in tfs.
  *
@@ -158,7 +158,7 @@ int32_t tfsMkdirRecurAt(STfs *pTfs, const char *rname, SDiskID diskId);
  * @return true for exist, false for not exist.
  */
 bool tfsDirExistAt(STfs *pTfs, const char *rname, SDiskID diskId);
-
+#endif
 /**
  * @brief Remove directory at all levels in tfs.
  *
@@ -241,7 +241,7 @@ void tfsBasename(const STfsFile *pFile, char *dest);
  * @param dest The buffer where dirname will be saved.
  */
 void tfsDirname(const STfsFile *pFile, char *dest);
-
+#if 0
 /**
  * @brief Get the absolute file name of rname.
  *
@@ -251,7 +251,7 @@ void tfsDirname(const STfsFile *pFile, char *dest);
  * @param aname absolute file name
  */
 void tfsAbsoluteName(STfs *pTfs, SDiskID diskId, const char *rname, char *aname);
-
+#endif
 /**
  * @brief Remove file in tfs.
  *
diff --git a/source/libs/tfs/src/tfs.c b/source/libs/tfs/src/tfs.c
index ecc55517b3..d3767c5d7a 100644
--- a/source/libs/tfs/src/tfs.c
+++ b/source/libs/tfs/src/tfs.c
@@ -245,13 +245,13 @@ void tfsDirname(const STfsFile *pFile, char *dest) {
   tstrncpy(tname, pFile->aname, TSDB_FILENAME_LEN);
   tstrncpy(dest, taosDirName(tname), TSDB_FILENAME_LEN);
 }
-
+#if 0
 void tfsAbsoluteName(STfs *pTfs, SDiskID diskId, const char *rname, char *aname) {
   STfsDisk *pDisk = TFS_DISK_AT(pTfs, diskId);
 
   (void)snprintf(aname, TSDB_FILENAME_LEN, "%s%s%s", pDisk->path, TD_DIRSEP, rname);
 }
-
+#endif
 int32_t tfsRemoveFile(const STfsFile *pFile) { return taosRemoveFile(pFile->aname); }
 
 int32_t tfsCopyFile(const STfsFile *pFile1, const STfsFile *pFile2) {
@@ -340,7 +340,7 @@ int32_t tfsMkdir(STfs *pTfs, const char *rname) {
 
   TAOS_RETURN(0);
 }
-
+#if 0
 bool tfsDirExistAt(STfs *pTfs, const char *rname, SDiskID diskId) {
   STfsDisk *pDisk = TFS_DISK_AT(pTfs, diskId);
   char      aname[TMPNAME_LEN];
@@ -348,7 +348,7 @@ bool tfsDirExistAt(STfs *pTfs, const char *rname, SDiskID diskId) {
   (void)snprintf(aname, TMPNAME_LEN, "%s%s%s", pDisk->path, TD_DIRSEP, rname);
   return taosDirExist(aname);
 }
-
+#endif
 int32_t tfsRmdir(STfs *pTfs, const char *rname) {
   if (rname[0] == 0) {
     TAOS_RETURN(0);
diff --git a/source/libs/tfs/test/tfsTest.cpp b/source/libs/tfs/test/tfsTest.cpp
index 0732b71f78..1da1b63d9f 100644
--- a/source/libs/tfs/test/tfsTest.cpp
+++ b/source/libs/tfs/test/tfsTest.cpp
@@ -281,6 +281,9 @@ TEST_F(TfsTest, 04_File) {
       const STfsFile *pf2 = tfsReaddir(pDir);
       EXPECT_EQ(pf2, nullptr);
 
+      pDir->pDir = taosOpenDir(fulldir);
+      EXPECT_NE(pDir->pDir, nullptr);
+
       tfsClosedir(pDir);
     }
 
@@ -783,5 +786,49 @@ TEST_F(TfsTest, 06_Exception) {
   taosMemoryFreeClear(pTfs);
 
   STfs tfs = {0};
-  EXPECT_EQ(tfsDiskSpaceAvailable(&tfs, -1), 0);
+  STfsTier *pTier = &tfs.tiers[0];
+  EXPECT_EQ(tfsDiskSpaceAvailable(&tfs, -1), false);
+  tfs.nlevel = 2;
+  pTier->ndisk = 3;
+  pTier->nAvailDisks = 1;
+  EXPECT_EQ(tfsDiskSpaceAvailable(&tfs, 0), false);
+  pTier->disks[0] = &disk;
+  EXPECT_EQ(tfsDiskSpaceAvailable(&tfs, 0), false);
+
+  EXPECT_EQ(tfsDiskSpaceSufficient(&tfs, -1, 0), false);
+  EXPECT_EQ(tfsDiskSpaceSufficient(&tfs, tfs.nlevel + 1, 0), false);
+  EXPECT_EQ(tfsDiskSpaceSufficient(&tfs, 0, -1), false);
+  EXPECT_EQ(tfsDiskSpaceSufficient(&tfs, 0, pTier->ndisk), false);
+
+  EXPECT_EQ(tfsGetDisksAtLevel(&tfs, -1), 0);
+  EXPECT_EQ(tfsGetDisksAtLevel(&tfs, tfs.nlevel), 0);
+
+  EXPECT_EQ(tfsGetLevel(&tfs), tfs.nlevel);
+
+  for (int32_t l = 0; l < tfs.nlevel; ++l) {
+    EXPECT_EQ(taosThreadSpinInit(&tfs.tiers[l].lock, 0), 0);
+  }
+
+  SDiskID diskID = {0};
+  disk.size.avail = TFS_MIN_DISK_FREE_SIZE;
+  EXPECT_EQ(tfsAllocDisk(&tfs, tfs.nlevel, &diskID), 0);
+  tfs.nlevel = 0;
+  diskID.level = 0;
+  EXPECT_EQ(tfsAllocDisk(&tfs, 0, &diskID), 0);
+  tfs.nlevel = 2;
+
+  diskID.id = 10;
+  EXPECT_EQ(tfsMkdirAt(&tfs, NULL, diskID), TSDB_CODE_FS_INVLD_CFG);
+
+  EXPECT_NE(tfsMkdirRecurAt(&tfs, NULL, diskID), 0);
+
+  const char *rname = "";
+  EXPECT_EQ(tfsRmdir(&tfs, rname), 0);
+
+  EXPECT_EQ(tfsSearch(&tfs, -1, NULL), -1);
+  EXPECT_EQ(tfsSearch(&tfs, tfs.nlevel, NULL), -1);
+
+  for (int32_t l = 0; l < tfs.nlevel; ++l) {
+    EXPECT_EQ(taosThreadSpinDestroy(&tfs.tiers[l].lock), 0);
+  }
 }