TD-10431 refact dnode test

source/dnode/mgmt/impl/test/CMakeLists.txt

 enable_testing()
 
-#add_subdirectory(acct)
+add_subdirectory(acct)
 # add_subdirectory(auth)
 # add_subdirectory(balance)
-#add_subdirectory(cluster)
-#add_subdirectory(db)
+add_subdirectory(cluster)
+add_subdirectory(db)
 #add_subdirectory(dnode)
 # add_subdirectory(func)
 # add_subdirectory(mnode)

source/dnode/mgmt/impl/test/acct/acct.cpp

@@ -23,6 +23,8 @@ class DndTestAcct : public ::testing::Test {
   void TearDown() override {}
 };
 
+Testbase DndTestAcct::test;
+
 TEST_F(DndTestAcct, 01_CreateAcct) {
   int32_t contLen = sizeof(SCreateAcctMsg);
 
@@ -61,5 +63,5 @@ TEST_F(DndTestAcct, 04_ShowAcct) {
 
   SRpcMsg* pMsg = test.SendMsg(TSDB_MSG_TYPE_SHOW, pReq, contLen);
   ASSERT_NE(pMsg, nullptr);
-  ASSERT_EQ(pMsg->code, TSDB_CODE_MND_MSG_NOT_PROCESSED);
+  ASSERT_EQ(pMsg->code, TSDB_CODE_MND_INVALID_MSG_TYPE);
 }
\ No newline at end of file

source/dnode/mgmt/impl/test/cluster/cluster.cpp

@@ -26,24 +26,16 @@ class DndTestCluster : public ::testing::Test {
 Testbase DndTestCluster::test;
 
 TEST_F(DndTestCluster, 01_ShowCluster) {
-  test.SendShowMetaMsg(TSDB_MGMT_TABLE_CLUSTER);
-  EXPECT_EQ(test.GetMetaNum(), 3);
-  EXPECT_STREQ(test.GetMetaTbName(), "show cluster");
-
-  EXPECT_EQ(test.GetMetaType(0), TSDB_DATA_TYPE_INT);
-  EXPECT_EQ(test.GetMetaBytes(0), 4);
-  EXPECT_STREQ(test.GetMetaName(0), "id");
-
-  EXPECT_EQ(test.GetMetaType(0), TSDB_DATA_TYPE_BINARY);
-  EXPECT_EQ(test.GetMetaBytes(0), TSDB_CLUSTER_ID_LEN + VARSTR_HEADER_SIZE);
-  EXPECT_STREQ(test.GetMetaName(0), "name");
-
-  EXPECT_EQ(test.GetMetaType(0), TSDB_DATA_TYPE_TIMESTAMP);
-  EXPECT_EQ(test.GetMetaBytes(0), 8);
-  EXPECT_STREQ(test.GetMetaName(0), "create_time");
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_CLUSTER, "");
+  CHECK_META( "show cluster", 3);
+  CHECK_SCHEMA(0, TSDB_DATA_TYPE_INT, 4, "id");
+  CHECK_SCHEMA(1, TSDB_DATA_TYPE_BINARY, TSDB_CLUSTER_ID_LEN + VARSTR_HEADER_SIZE, "name");
+  CHECK_SCHEMA(2, TSDB_DATA_TYPE_TIMESTAMP, 8, "create_time");
 
   test.SendShowRetrieveMsg();
-  test.GetShowInt32();
-  test.GetShowBinary(TSDB_CLUSTER_ID_LEN);
-  EXPECT_GT(test.GetShowTimestamp(), 0);
+  EXPECT_EQ(test.GetShowRows(), 1);
+
+  IgnoreInt32();
+  IgnoreBinary(TSDB_CLUSTER_ID_LEN);
+  CheckTimestamp();
 }
\ No newline at end of file

source/dnode/mgmt/impl/test/db/CMakeLists.txt

-add_executable(dnode_test_db "")
-
-target_sources(dnode_test_db
-    PRIVATE
-    "db.cpp"
-    "../sut/deploy.cpp"
-)
-
+aux_source_directory(. DB_SRC)
+add_executable(dnode_test_db ${DB_SRC})
 target_link_libraries(
     dnode_test_db
-    PUBLIC dnode
-    PUBLIC util
-    PUBLIC os
-    PUBLIC gtest_main
-)
-
-target_include_directories(dnode_test_db
-    PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/server/dnode/mgmt"
-    "${CMAKE_CURRENT_SOURCE_DIR}/../../inc"
-    "${CMAKE_CURRENT_SOURCE_DIR}/../sut"
+    PUBLIC sut
 )
 
 add_test(

source/dnode/mgmt/impl/test/db/db.cpp

@@ -9,199 +9,52 @@
  *
  */
 
-#include "deploy.h"
+#include "base.h"
 
 class DndTestDb : public ::testing::Test {
  protected:
-  static SServer* CreateServer(const char* path, const char* fqdn, uint16_t port, const char* firstEp) {
-    SServer* pServer = createServer(path, fqdn, port, firstEp);
-    ASSERT(pServer);
-    return pServer;
-  }
-
-  static void SetUpTestSuite() {
-    initLog("/tmp/tdlog");
-
-    const char* fqdn = "localhost";
-    const char* firstEp = "localhost:9040";
-    pServer = CreateServer("/tmp/dnode_test_db", fqdn, 9040, firstEp);
-    pClient = createClient("root", "taosdata", fqdn, 9040);
-    taosMsleep(1100);
-  }
-
-  static void TearDownTestSuite() {
-    stopServer(pServer);
-    dropClient(pClient);
-    pServer = NULL;
-    pClient = NULL;
-  }
+  static void SetUpTestSuite() { test.Init("/tmp/dnode_test_db", 9040); }
+  static void TearDownTestSuite() { test.Cleanup(); }
 
-  static SServer* pServer;
-  static SClient* pClient;
-  static int32_t  connId;
+  static Testbase test;
 
  public:
   void SetUp() override {}
   void TearDown() override {}
-
-  void SendTheCheckShowMetaMsg(int8_t showType, const char* showName, int32_t columns, const char* db) {
-    SShowMsg* pShow = (SShowMsg*)rpcMallocCont(sizeof(SShowMsg));
-    pShow->type = showType;
-    if (db != NULL) {
-      strcpy(pShow->db, db);
-    }
-    SRpcMsg showRpcMsg = {0};
-    showRpcMsg.pCont = pShow;
-    showRpcMsg.contLen = sizeof(SShowMsg);
-    showRpcMsg.msgType = TSDB_MSG_TYPE_SHOW;
-
-    sendMsg(pClient, &showRpcMsg);
-    ASSERT_NE(pClient->pRsp, nullptr);
-    ASSERT_EQ(pClient->pRsp->code, 0);
-    ASSERT_NE(pClient->pRsp->pCont, nullptr);
-
-    SShowRsp* pShowRsp = (SShowRsp*)pClient->pRsp->pCont;
-    ASSERT_NE(pShowRsp, nullptr);
-    pShowRsp->showId = htonl(pShowRsp->showId);
-    pMeta = &pShowRsp->tableMeta;
-    pMeta->numOfTags = htonl(pMeta->numOfTags);
-    pMeta->numOfColumns = htonl(pMeta->numOfColumns);
-    pMeta->sversion = htonl(pMeta->sversion);
-    pMeta->tversion = htonl(pMeta->tversion);
-    pMeta->tuid = htobe64(pMeta->tuid);
-    pMeta->suid = htobe64(pMeta->suid);
-
-    showId = pShowRsp->showId;
-
-    EXPECT_NE(pShowRsp->showId, 0);
-    EXPECT_STREQ(pMeta->tbFname, showName);
-    EXPECT_EQ(pMeta->numOfTags, 0);
-    EXPECT_EQ(pMeta->numOfColumns, columns);
-    EXPECT_EQ(pMeta->precision, 0);
-    EXPECT_EQ(pMeta->tableType, 0);
-    EXPECT_EQ(pMeta->update, 0);
-    EXPECT_EQ(pMeta->sversion, 0);
-    EXPECT_EQ(pMeta->tversion, 0);
-    EXPECT_EQ(pMeta->tuid, 0);
-    EXPECT_EQ(pMeta->suid, 0);
-  }
-
-  void CheckSchema(int32_t index, int8_t type, int32_t bytes, const char* name) {
-    SSchema* pSchema = &pMeta->pSchema[index];
-    pSchema->bytes = htonl(pSchema->bytes);
-    EXPECT_EQ(pSchema->colId, 0);
-    EXPECT_EQ(pSchema->type, type);
-    EXPECT_EQ(pSchema->bytes, bytes);
-    EXPECT_STREQ(pSchema->name, name);
-  }
-
-  void SendThenCheckShowRetrieveMsg(int32_t rows) {
-    SRetrieveTableMsg* pRetrieve = (SRetrieveTableMsg*)rpcMallocCont(sizeof(SRetrieveTableMsg));
-    pRetrieve->showId = htonl(showId);
-    pRetrieve->free = 0;
-
-    SRpcMsg retrieveRpcMsg = {0};
-    retrieveRpcMsg.pCont = pRetrieve;
-    retrieveRpcMsg.contLen = sizeof(SRetrieveTableMsg);
-    retrieveRpcMsg.msgType = TSDB_MSG_TYPE_SHOW_RETRIEVE;
-
-    sendMsg(pClient, &retrieveRpcMsg);
-
-    ASSERT_NE(pClient->pRsp, nullptr);
-    ASSERT_EQ(pClient->pRsp->code, 0);
-    ASSERT_NE(pClient->pRsp->pCont, nullptr);
-
-    pRetrieveRsp = (SRetrieveTableRsp*)pClient->pRsp->pCont;
-    ASSERT_NE(pRetrieveRsp, nullptr);
-    pRetrieveRsp->numOfRows = htonl(pRetrieveRsp->numOfRows);
-    pRetrieveRsp->useconds = htobe64(pRetrieveRsp->useconds);
-    pRetrieveRsp->compLen = htonl(pRetrieveRsp->compLen);
-
-    EXPECT_EQ(pRetrieveRsp->numOfRows, rows);
-    EXPECT_EQ(pRetrieveRsp->useconds, 0);
-    // EXPECT_EQ(pRetrieveRsp->completed, completed);
-    EXPECT_EQ(pRetrieveRsp->precision, TSDB_TIME_PRECISION_MILLI);
-    EXPECT_EQ(pRetrieveRsp->compressed, 0);
-    EXPECT_EQ(pRetrieveRsp->compLen, 0);
-
-    pData = pRetrieveRsp->data;
-    pos = 0;
-  }
-
-  void CheckInt8(int8_t val) {
-    int8_t data = *((int8_t*)(pData + pos));
-    pos += sizeof(int8_t);
-    EXPECT_EQ(data, val);
-  }
-
-  void CheckInt16(int16_t val) {
-    int16_t data = *((int16_t*)(pData + pos));
-    pos += sizeof(int16_t);
-    EXPECT_EQ(data, val);
-  }
-
-  void CheckInt32(int32_t val) {
-    int32_t data = *((int32_t*)(pData + pos));
-    pos += sizeof(int32_t);
-    EXPECT_EQ(data, val);
-  }
-
-  void CheckInt64(int64_t val) {
-    int64_t data = *((int64_t*)(pData + pos));
-    pos += sizeof(int64_t);
-    EXPECT_EQ(data, val);
-  }
-
-  void CheckTimestamp() {
-    int64_t data = *((int64_t*)(pData + pos));
-    pos += sizeof(int64_t);
-    EXPECT_GT(data, 0);
-  }
-
-  void CheckBinary(const char* val, int32_t len) {
-    pos += sizeof(VarDataLenT);
-    char* data = (char*)(pData + pos);
-    pos += len;
-    EXPECT_STREQ(data, val);
-  }
-
-  int32_t            showId;
-  STableMetaMsg*     pMeta;
-  SRetrieveTableRsp* pRetrieveRsp;
-  char*              pData;
-  int32_t            pos;
 };
 
-SServer* DndTestDb::pServer;
-SClient* DndTestDb::pClient;
-int32_t  DndTestDb::connId;
+Testbase DndTestDb::test;
 
 TEST_F(DndTestDb, 01_ShowDb) {
-  SendTheCheckShowMetaMsg(TSDB_MGMT_TABLE_DB, "show databases", 17, NULL);
-  CheckSchema(0, TSDB_DATA_TYPE_BINARY, TSDB_DB_NAME_LEN - 1 + VARSTR_HEADER_SIZE, "name");
-  CheckSchema(1, TSDB_DATA_TYPE_TIMESTAMP, 8, "create_time");
-  CheckSchema(2, TSDB_DATA_TYPE_SMALLINT, 2, "vgroups");
-  CheckSchema(3, TSDB_DATA_TYPE_SMALLINT, 2, "replica");
-  CheckSchema(4, TSDB_DATA_TYPE_SMALLINT, 2, "quorum");
-  CheckSchema(5, TSDB_DATA_TYPE_SMALLINT, 2, "days");
-  CheckSchema(6, TSDB_DATA_TYPE_BINARY, 24 + VARSTR_HEADER_SIZE, "keep0,keep1,keep2");
-  CheckSchema(7, TSDB_DATA_TYPE_INT, 4, "cache");
-  CheckSchema(8, TSDB_DATA_TYPE_INT, 4, "blocks");
-  CheckSchema(9, TSDB_DATA_TYPE_INT, 4, "minrows");
-  CheckSchema(10, TSDB_DATA_TYPE_INT, 4, "maxrows");
-  CheckSchema(11, TSDB_DATA_TYPE_TINYINT, 1, "wallevel");
-  CheckSchema(12, TSDB_DATA_TYPE_INT, 4, "fsync");
-  CheckSchema(13, TSDB_DATA_TYPE_TINYINT, 1, "comp");
-  CheckSchema(14, TSDB_DATA_TYPE_TINYINT, 1, "cachelast");
-  CheckSchema(15, TSDB_DATA_TYPE_BINARY, 3 + VARSTR_HEADER_SIZE, "precision");
-  CheckSchema(16, TSDB_DATA_TYPE_TINYINT, 1, "update");
-
-  SendThenCheckShowRetrieveMsg(0);
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_DB, "");
+  CHECK_META("show databases", 17);
+  CHECK_SCHEMA(0, TSDB_DATA_TYPE_BINARY, TSDB_DB_NAME_LEN - 1 + VARSTR_HEADER_SIZE, "name");
+  CHECK_SCHEMA(1, TSDB_DATA_TYPE_TIMESTAMP, 8, "create_time");
+  CHECK_SCHEMA(2, TSDB_DATA_TYPE_SMALLINT, 2, "vgroups");
+  CHECK_SCHEMA(3, TSDB_DATA_TYPE_SMALLINT, 2, "replica");
+  CHECK_SCHEMA(4, TSDB_DATA_TYPE_SMALLINT, 2, "quorum");
+  CHECK_SCHEMA(5, TSDB_DATA_TYPE_SMALLINT, 2, "days");
+  CHECK_SCHEMA(6, TSDB_DATA_TYPE_BINARY, 24 + VARSTR_HEADER_SIZE, "keep0,keep1,keep2");
+  CHECK_SCHEMA(7, TSDB_DATA_TYPE_INT, 4, "cache");
+  CHECK_SCHEMA(8, TSDB_DATA_TYPE_INT, 4, "blocks");
+  CHECK_SCHEMA(9, TSDB_DATA_TYPE_INT, 4, "minrows");
+  CHECK_SCHEMA(10, TSDB_DATA_TYPE_INT, 4, "maxrows");
+  CHECK_SCHEMA(11, TSDB_DATA_TYPE_TINYINT, 1, "wallevel");
+  CHECK_SCHEMA(12, TSDB_DATA_TYPE_INT, 4, "fsync");
+  CHECK_SCHEMA(13, TSDB_DATA_TYPE_TINYINT, 1, "comp");
+  CHECK_SCHEMA(14, TSDB_DATA_TYPE_TINYINT, 1, "cachelast");
+  CHECK_SCHEMA(15, TSDB_DATA_TYPE_BINARY, 3 + VARSTR_HEADER_SIZE, "precision");
+  CHECK_SCHEMA(16, TSDB_DATA_TYPE_TINYINT, 1, "update");
+
+  test.SendShowRetrieveMsg();
+  EXPECT_EQ(test.GetShowRows(), 0);
 }
 
 TEST_F(DndTestDb, 02_Create_Alter_Drop_Db) {
   {
-    SCreateDbMsg* pReq = (SCreateDbMsg*)rpcMallocCont(sizeof(SCreateDbMsg));
+    int32_t contLen = sizeof(SCreateDbMsg);
+
+    SCreateDbMsg* pReq = (SCreateDbMsg*)rpcMallocCont(contLen);
     strcpy(pReq->db, "1.d1");
     pReq->numOfVgroups = htonl(2);
     pReq->cacheBlockSize = htonl(16);
@@ -223,20 +76,16 @@ TEST_F(DndTestDb, 02_Create_Alter_Drop_Db) {
     pReq->cacheLastRow = 0;
     pReq->ignoreExist = 1;
 
-    SRpcMsg rpcMsg = {0};
-    rpcMsg.pCont = pReq;
-    rpcMsg.contLen = sizeof(SCreateDbMsg);
-    rpcMsg.msgType = TSDB_MSG_TYPE_CREATE_DB;
-
-    sendMsg(pClient, &rpcMsg);
-    SRpcMsg* pMsg = pClient->pRsp;
+    SRpcMsg* pMsg = test.SendMsg(TSDB_MSG_TYPE_CREATE_DB, pReq, contLen);
     ASSERT_NE(pMsg, nullptr);
     ASSERT_EQ(pMsg->code, 0);
-    // taosMsleep(1000000);
   }
 
-  SendTheCheckShowMetaMsg(TSDB_MGMT_TABLE_DB, "show databases", 17, NULL);
-  SendThenCheckShowRetrieveMsg(1);
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_DB, "");
+  CHECK_META("show databases", 17);
+
+  test.SendShowRetrieveMsg();
+  EXPECT_EQ(test.GetShowRows(), 1);
   CheckBinary("d1", TSDB_DB_NAME_LEN - 1);
   CheckTimestamp();
   CheckInt16(2);                      // vgroups
@@ -255,12 +104,15 @@ TEST_F(DndTestDb, 02_Create_Alter_Drop_Db) {
   CheckBinary("ms", 3);               // precision
   CheckInt8(0);                       // update
 
-  SendTheCheckShowMetaMsg(TSDB_MGMT_TABLE_VGROUP, "show vgroups", 4, "1.d1");
-  CheckSchema(0, TSDB_DATA_TYPE_INT, 4, "vgId");
-  CheckSchema(1, TSDB_DATA_TYPE_INT, 4, "tables");
-  CheckSchema(2, TSDB_DATA_TYPE_SMALLINT, 2, "v1_dnode");
-  CheckSchema(3, TSDB_DATA_TYPE_BINARY, 9 + VARSTR_HEADER_SIZE, "v1_status");
-  SendThenCheckShowRetrieveMsg(2);
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_VGROUP, "1.d1");
+  CHECK_META("show vgroups", 4);
+  CHECK_SCHEMA(0, TSDB_DATA_TYPE_INT, 4, "vgId");
+  CHECK_SCHEMA(1, TSDB_DATA_TYPE_INT, 4, "tables");
+  CHECK_SCHEMA(2, TSDB_DATA_TYPE_SMALLINT, 2, "v1_dnode");
+  CHECK_SCHEMA(3, TSDB_DATA_TYPE_BINARY, 9 + VARSTR_HEADER_SIZE, "v1_status");
+
+  test.SendShowRetrieveMsg();
+  EXPECT_EQ(test.GetShowRows(), 2);
   CheckInt32(1);
   CheckInt32(2);
   CheckInt32(0);
@@ -271,7 +123,9 @@ TEST_F(DndTestDb, 02_Create_Alter_Drop_Db) {
   CheckBinary("master", 9);
 
   {
-    SAlterDbMsg* pReq = (SAlterDbMsg*)rpcMallocCont(sizeof(SAlterDbMsg));
+    int32_t contLen = sizeof(SAlterDbMsg);
+
+    SAlterDbMsg* pReq = (SAlterDbMsg*)rpcMallocCont(contLen);
     strcpy(pReq->db, "1.d1");
     pReq->totalBlocks = htonl(12);
     pReq->daysToKeep0 = htonl(300);
@@ -282,19 +136,14 @@ TEST_F(DndTestDb, 02_Create_Alter_Drop_Db) {
     pReq->quorum = 2;
     pReq->cacheLastRow = 1;
 
-    SRpcMsg rpcMsg = {0};
-    rpcMsg.pCont = pReq;
-    rpcMsg.contLen = sizeof(SAlterDbMsg);
-    rpcMsg.msgType = TSDB_MSG_TYPE_ALTER_DB;
-
-    sendMsg(pClient, &rpcMsg);
-    SRpcMsg* pMsg = pClient->pRsp;
+    SRpcMsg* pMsg = test.SendMsg(TSDB_MSG_TYPE_ALTER_DB, pReq, contLen);
     ASSERT_NE(pMsg, nullptr);
     ASSERT_EQ(pMsg->code, 0);
   }
 
-  SendTheCheckShowMetaMsg(TSDB_MGMT_TABLE_DB, "show databases", 17, NULL);
-  SendThenCheckShowRetrieveMsg(1);
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_DB, "");
+  test.SendShowRetrieveMsg();
+  EXPECT_EQ(test.GetShowRows(), 1);
   CheckBinary("d1", TSDB_DB_NAME_LEN - 1);
   CheckTimestamp();
   CheckInt16(2);                   // vgroups
@@ -314,19 +163,14 @@ TEST_F(DndTestDb, 02_Create_Alter_Drop_Db) {
   CheckInt8(0);                    // update
 
   // restart
-  stopServer(pServer);
-  pServer = NULL;
-
-  uInfo("start all server");
+  test.Restart();
 
-  const char* fqdn = "localhost";
-  const char* firstEp = "localhost:9040";
-  pServer = startServer("/tmp/dnode_test_db", fqdn, 9040, firstEp);
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_DB, "");
+  CHECK_META("show databases", 17);
 
-  uInfo("all server is running");
+  test.SendShowRetrieveMsg();
+  EXPECT_EQ(test.GetShowRows(), 1);
 
-  SendTheCheckShowMetaMsg(TSDB_MGMT_TABLE_DB, "show databases", 17, NULL);
-  SendThenCheckShowRetrieveMsg(1);
   CheckBinary("d1", TSDB_DB_NAME_LEN - 1);
   CheckTimestamp();
   CheckInt16(2);                   // vgroups
@@ -346,27 +190,28 @@ TEST_F(DndTestDb, 02_Create_Alter_Drop_Db) {
   CheckInt8(0);                    // update
 
   {
-    SDropDbMsg* pReq = (SDropDbMsg*)rpcMallocCont(sizeof(SDropDbMsg));
-    strcpy(pReq->db, "1.d1");
+    int32_t contLen = sizeof(SDropDbMsg);
 
-    SRpcMsg rpcMsg = {0};
-    rpcMsg.pCont = pReq;
-    rpcMsg.contLen = sizeof(SDropDbMsg);
-    rpcMsg.msgType = TSDB_MSG_TYPE_DROP_DB;
+    SDropDbMsg* pReq = (SDropDbMsg*)rpcMallocCont(contLen);
+    strcpy(pReq->db, "1.d1");
 
-    sendMsg(pClient, &rpcMsg);
-    SRpcMsg* pMsg = pClient->pRsp;
+    SRpcMsg* pMsg = test.SendMsg(TSDB_MSG_TYPE_DROP_DB, pReq, contLen);
     ASSERT_NE(pMsg, nullptr);
     ASSERT_EQ(pMsg->code, 0);
   }
 
-  SendTheCheckShowMetaMsg(TSDB_MGMT_TABLE_DB, "show databases", 17, NULL);
-  SendThenCheckShowRetrieveMsg(0);
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_DB, "");
+  CHECK_META("show databases", 17);
+
+  test.SendShowRetrieveMsg();
+  EXPECT_EQ(test.GetShowRows(), 0);
 }
 
 TEST_F(DndTestDb, 03_Create_Use_Restart_Use_Db) {
   {
-    SCreateDbMsg* pReq = (SCreateDbMsg*)rpcMallocCont(sizeof(SCreateDbMsg));
+    int32_t contLen = sizeof(SCreateDbMsg);
+
+    SCreateDbMsg* pReq = (SCreateDbMsg*)rpcMallocCont(contLen);
     strcpy(pReq->db, "1.d2");
     pReq->numOfVgroups = htonl(2);
     pReq->cacheBlockSize = htonl(16);
@@ -388,33 +233,26 @@ TEST_F(DndTestDb, 03_Create_Use_Restart_Use_Db) {
     pReq->cacheLastRow = 0;
     pReq->ignoreExist = 1;
 
-    SRpcMsg rpcMsg = {0};
-    rpcMsg.pCont = pReq;
-    rpcMsg.contLen = sizeof(SCreateDbMsg);
-    rpcMsg.msgType = TSDB_MSG_TYPE_CREATE_DB;
-
-    sendMsg(pClient, &rpcMsg);
-    SRpcMsg* pMsg = pClient->pRsp;
+    SRpcMsg* pMsg = test.SendMsg(TSDB_MSG_TYPE_CREATE_DB, pReq, contLen);
     ASSERT_NE(pMsg, nullptr);
     ASSERT_EQ(pMsg->code, 0);
   }
 
-  SendTheCheckShowMetaMsg(TSDB_MGMT_TABLE_DB, "show databases", 17, NULL);
-  SendThenCheckShowRetrieveMsg(1);
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_DB, "");
+  CHECK_META("show databases", 17);
+
+  test.SendShowRetrieveMsg();
+  EXPECT_EQ(test.GetShowRows(), 1);
   CheckBinary("d2", TSDB_DB_NAME_LEN - 1);
 
   {
-    SUseDbMsg* pReq = (SUseDbMsg*)rpcMallocCont(sizeof(SUseDbMsg));
+    int32_t contLen = sizeof(SUseDbMsg);
+
+    SUseDbMsg* pReq = (SUseDbMsg*)rpcMallocCont(contLen);
     strcpy(pReq->db, "1.d2");
     pReq->vgVersion = htonl(-1);
 
-    SRpcMsg rpcMsg = {0};
-    rpcMsg.pCont = pReq;
-    rpcMsg.contLen = sizeof(SUseDbMsg);
-    rpcMsg.msgType = TSDB_MSG_TYPE_USE_DB;
-
-    sendMsg(pClient, &rpcMsg);
-    SRpcMsg* pMsg = pClient->pRsp;
+    SRpcMsg* pMsg = test.SendMsg(TSDB_MSG_TYPE_USE_DB, pReq, contLen);
     ASSERT_NE(pMsg, nullptr);
     ASSERT_EQ(pMsg->code, 0);
 

source/dnode/mgmt/impl/test/show/show.cpp

@@ -48,3 +48,40 @@ TEST_F(DndTestShow, 02_ShowMsg_InvalidMsgStart) {
   ASSERT_NE(pMsg, nullptr);
   ASSERT_EQ(pMsg->code, TSDB_CODE_MND_INVALID_MSG_TYPE);
 }
+
+TEST_F(DndTestShow, 02_ShowMsg_Conn) {
+  int32_t contLen = sizeof(SConnectMsg);
+
+  SConnectMsg* pReq = (SConnectMsg*)rpcMallocCont(contLen);
+  pReq->pid = htonl(1234);
+  strcpy(pReq->app, "dnode_test_show");
+  strcpy(pReq->db, "");
+
+  SRpcMsg* pMsg = test.SendMsg(TSDB_MSG_TYPE_CONNECT, pReq, contLen);
+  ASSERT_NE(pMsg, nullptr);
+  ASSERT_EQ(pMsg->code, 0);
+
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_CONNS, "");
+
+  STableMetaMsg* pMeta = test.GetShowMeta();
+  EXPECT_STREQ(pMeta->tbFname, "show connections");
+  EXPECT_EQ(pMeta->numOfTags, 0);
+  EXPECT_EQ(pMeta->numOfColumns, 7);
+  EXPECT_EQ(pMeta->precision, 0);
+  EXPECT_EQ(pMeta->tableType, 0);
+  EXPECT_EQ(pMeta->update, 0);
+  EXPECT_EQ(pMeta->sversion, 0);
+  EXPECT_EQ(pMeta->tversion, 0);
+  EXPECT_EQ(pMeta->tuid, 0);
+  EXPECT_EQ(pMeta->suid, 0);
+
+  test.SendShowRetrieveMsg();
+
+  SRetrieveTableRsp* pRetrieveRsp = test.GetRetrieveRsp();
+  EXPECT_EQ(pRetrieveRsp->numOfRows, 1);
+  EXPECT_EQ(pRetrieveRsp->useconds, 0);
+  EXPECT_EQ(pRetrieveRsp->completed, 1);
+  EXPECT_EQ(pRetrieveRsp->precision, TSDB_TIME_PRECISION_MILLI);
+  EXPECT_EQ(pRetrieveRsp->compressed, 0);
+  EXPECT_EQ(pRetrieveRsp->compLen, 0);
+}

source/dnode/mgmt/impl/test/sut/inc/base.h

@@ -36,6 +36,7 @@ class Testbase {
  public:
   void     Init(const char* path, int16_t port);
   void     Cleanup();
+  void     Restart();
   SRpcMsg* SendMsg(int8_t msgType, void* pCont, int32_t contLen);
 
  private:
@@ -47,22 +48,27 @@ class Testbase {
   int32_t    connId;
 
  public:
-  void SendShowMetaMsg(int8_t showType);
+  void SendShowMetaMsg(int8_t showType, const char* db);
   void SendShowRetrieveMsg();
 
+  STableMetaMsg*     GetShowMeta();
+  SRetrieveTableRsp* GetRetrieveRsp();
+
+  int32_t     GetMetaNum();
+  const char* GetMetaTbName();
+  int32_t     GetMetaColId(int32_t index);
+  int8_t      GetMetaType(int32_t index);
+  int32_t     GetMetaBytes(int32_t index);
+  const char* GetMetaName(int32_t index);
+
   const char* GetShowName();
+  int32_t     GetShowRows();
   int8_t      GetShowInt8();
   int16_t     GetShowInt16();
   int32_t     GetShowInt32();
   int64_t     GetShowInt64();
   int64_t     GetShowTimestamp();
   const char* GetShowBinary(int32_t len);
-  int32_t     GetMetaColId(int32_t index);
-  int8_t      GetMetaType(int32_t index);
-  int32_t     GetMetaBytes(int32_t index);
-  const char* GetMetaName(int32_t index);
-  int32_t     GetMetaNum();
-  const char* GetMetaTbName();
 
  private:
   int32_t            showId;
@@ -72,4 +78,53 @@ class Testbase {
   int32_t            pos;
 };
 
+#define CHECK_META(tbName, numOfColumns)        \
+  {                                             \
+    EXPECT_EQ(test.GetMetaNum(), numOfColumns); \
+    EXPECT_STREQ(test.GetMetaTbName(), tbName); \
+  }
+
+#define CHECK_SCHEMA(colId, type, bytes, colName)   \
+  {                                                 \
+    EXPECT_EQ(test.GetMetaType(colId), type);       \
+    EXPECT_EQ(test.GetMetaBytes(colId), bytes);     \
+    EXPECT_STREQ(test.GetMetaName(colId), colName); \
+  }
+
+#define CheckBinary(val, len) \
+  { EXPECT_STREQ(test.GetShowBinary(len), val); }
+
+#define CheckInt8(val) \
+  { EXPECT_EQ(test.GetShowInt8(), val); }
+
+#define CheckInt16(val) \
+  { EXPECT_EQ(test.GetShowInt16(), val); }
+
+#define CheckInt32(val) \
+  { EXPECT_EQ(test.GetShowInt32(), val); }
+
+#define CheckInt64(val) \
+  { EXPECT_EQ(test.GetShowInt64(), val); }
+
+#define CheckTimestamp() \
+  { EXPECT_GT(test.GetShowTimestamp(), 0); }
+
+#define IgnoreBinary(len) \
+  { test.GetShowBinary(len); }
+
+#define IgnoreInt8() \
+  { test.GetShowInt8(); }
+
+#define IgnoreInt16() \
+  { test.GetShowInt16(); }
+
+#define IgnoreInt32() \
+  { test.GetShowInt32(); }
+
+#define IgnoreInt64() \
+  { test.GetShowInt64(); }
+
+#define IgnoreTimestamp() \
+  { test.GetShowTimestamp(); }
+
 #endif /* _TD_TEST_BASE_H_ */
\ No newline at end of file

source/dnode/mgmt/impl/test/sut/inc/server.h

@@ -20,13 +20,19 @@ class TestServer {
  public:
   bool Start(const char* path, const char* fqdn, uint16_t port, const char* firstEp);
   void Stop();
+  void Restart();
 
  private:
   SDnodeOpt BuildOption(const char* path, const char* fqdn, uint16_t port, const char* firstEp);
+  bool      DoStart();
 
  private:
   SDnode*    pDnode;
   pthread_t* threadId;
+  char       path[PATH_MAX];
+  char       fqdn[TSDB_FQDN_LEN];
+  char       firstEp[TSDB_EP_LEN];
+  uint16_t   port;
 };
 
 #endif /* _TD_TEST_SERVER_H_ */
\ No newline at end of file

source/dnode/mgmt/impl/test/sut/src/base.cpp

@@ -58,20 +58,22 @@ void Testbase::Cleanup() {
   client.Cleanup();
 }
 
+void Testbase::Restart() { server.Restart(); }
+
 SRpcMsg* Testbase::SendMsg(int8_t msgType, void* pCont, int32_t contLen) {
   SRpcMsg rpcMsg = {0};
   rpcMsg.pCont = pCont;
-  rpcMsg.contLen = sizeof(SShowMsg);
+  rpcMsg.contLen = contLen;
   rpcMsg.msgType = msgType;
 
   return client.SendMsg(&rpcMsg);
 }
 
-void Testbase::SendShowMetaMsg(int8_t showType) {
+void Testbase::SendShowMetaMsg(int8_t showType, const char* db) {
   int32_t   contLen = sizeof(SShowMsg);
   SShowMsg* pShow = (SShowMsg*)rpcMallocCont(contLen);
   pShow->type = showType;
-  strcpy(pShow->db, "");
+  strcpy(pShow->db, db);
 
   SRpcMsg*  pMsg = SendMsg(TSDB_MSG_TYPE_SHOW, pShow, contLen);
   SShowRsp* pShowRsp = (SShowRsp*)pMsg->pCont;
@@ -124,6 +126,9 @@ void Testbase::SendShowRetrieveMsg() {
 
   SRpcMsg* pMsg = SendMsg(TSDB_MSG_TYPE_SHOW_RETRIEVE, pRetrieve, contLen);
   pRetrieveRsp = (SRetrieveTableRsp*)pMsg->pCont;
+  pRetrieveRsp->numOfRows = htonl(pRetrieveRsp->numOfRows);
+  pRetrieveRsp->useconds = htobe64(pRetrieveRsp->useconds);
+  pRetrieveRsp->compLen = htonl(pRetrieveRsp->compLen);
 
   pData = pRetrieveRsp->data;
   pos = 0;
@@ -166,4 +171,10 @@ const char* Testbase::GetShowBinary(int32_t len) {
   char* data = (char*)(pData + pos);
   pos += len;
   return data;
-}
\ No newline at end of file
+}
+
+int32_t Testbase::GetShowRows() { return pRetrieveRsp->numOfRows; }
+
+STableMetaMsg* Testbase::GetShowMeta() { return pMeta; }
+
+SRetrieveTableRsp* Testbase::GetRetrieveRsp() { return pRetrieveRsp; }
\ No newline at end of file

source/dnode/mgmt/impl/test/sut/src/server.cpp

@@ -42,9 +42,8 @@ SDnodeOpt TestServer::BuildOption(const char* path, const char* fqdn, uint16_t p
   return option;
 }
 
-bool TestServer::Start(const char* path, const char* fqdn, uint16_t port, const char* firstEp) {
+bool TestServer::DoStart() {
   SDnodeOpt option = BuildOption(path, fqdn, port, firstEp);
-  taosRemoveDir(path);
   taosMkDir(path);
 
   pDnode = dndInit(&option);
@@ -59,6 +58,23 @@ bool TestServer::Start(const char* path, const char* fqdn, uint16_t port, const
   return true;
 }
 
+void TestServer::Restart() {
+  uInfo("start all server");
+  Stop();
+  DoStart();
+  uInfo("all server is running");
+}
+
+bool TestServer::Start(const char* path, const char* fqdn, uint16_t port, const char* firstEp) {
+  strcpy(this->path, path);
+  strcpy(this->fqdn, fqdn);
+  this->port = port;
+  strcpy(this->firstEp, firstEp);
+
+  taosRemoveDir(path);
+  return DoStart();
+}
+
 void TestServer::Stop() {
   if (threadId != NULL) {
     taosDestoryThread(threadId);

source/dnode/mnode/impl/src/mndShow.c

@@ -138,7 +138,7 @@ static int32_t mndProcessShowMsg(SMnodeMsg *pMnodeMsg) {
   ShowMetaFp metaFp = pMgmt->metaFps[type];
   if (metaFp == NULL) {
     terrno = TSDB_CODE_MND_INVALID_MSG_TYPE;
-    mError("failed to process show-meta msg:%s since no message handle", mndShowStr(type));
+    mError("failed to process show-meta msg:%s since %s", mndShowStr(type), terrstr());
     return -1;
   }