Files
tidb/server/server_test.go
2023-08-01 15:50:37 +00:00

103 lines
3.7 KiB
Go

// Copyright 2015 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package server
import (
"bufio"
"bytes"
"context"
"encoding/json"
"os"
"path/filepath"
"testing"
"github.com/pingcap/failpoint"
"github.com/pingcap/tidb/server/internal"
"github.com/pingcap/tidb/server/internal/util"
"github.com/pingcap/tidb/testkit"
"github.com/pingcap/tidb/testkit/testdata"
"github.com/pingcap/tidb/util/arena"
"github.com/pingcap/tidb/util/chunk"
"github.com/pingcap/tidb/util/replayer"
"github.com/stretchr/testify/require"
)
func TestOptimizerDebugTrace(t *testing.T) {
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/planner/SetBindingTimeToZero", `return(true)`))
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/planner/core/DebugTraceStableStatsTbl", `return(true)`))
defer func() {
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/planner/SetBindingTimeToZero"))
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/planner/core/DebugTraceStableStatsTbl"))
}()
store, dom := testkit.CreateMockStoreAndDomain(t)
tk := testkit.NewTestKit(t, store)
tidbdrv := NewTiDBDriver(store)
cfg := util.NewTestConfig()
cfg.Port, cfg.Status.StatusPort = 0, 0
cfg.Status.ReportStatus = false
server, err := NewServer(cfg, tidbdrv)
require.NoError(t, err)
defer server.Close()
cc := &clientConn{
server: server,
alloc: arena.NewAllocator(1024),
chunkAlloc: chunk.NewAllocator(),
pkt: internal.NewPacketIOForTest(bufio.NewWriter(bytes.NewBuffer(nil))),
}
ctx := context.Background()
cc.SetCtx(&TiDBContext{Session: tk.Session(), stmts: make(map[int]*TiDBStatement)})
tk.MustExec("use test")
tk.MustExec("create table t (col1 int, index i(col1))")
h := dom.StatsHandle()
require.NoError(t, h.HandleDDLEvent(<-h.DDLEventCh()))
tk.MustExec("plan replayer capture '0595c79f25d183319d0830ff8ca538c9054cbf407e5e27488b5dc40e4738a7c8' '*'")
tk.MustExec("plan replayer capture 'c0fcc0abbaaffcaafe21115a3c67ae5d96a188cc197559953d2865ea6852d3cc' '*'")
tk.MustExec("plan replayer capture '58fcbdd56a722c02225488c89a782cd2d626f8219c8ef8f57cd3bcdb6eb7c1b2' '*'")
require.NoError(t, cc.HandleStmtPrepare(ctx, "select sum(col1) from t where col1 < ? and col1 > 100"))
tk.MustExec("prepare stmt from 'select * from t where col1 in (?, 2, 3)'")
tk.MustExec("set @a = 1")
var (
in []string
out []interface{}
)
optSuiteData := testDataMap["optimizer_suite"]
optSuiteData.LoadTestCases(t, &in, &out)
for i, cmdString := range in {
require.NoError(t, cc.dispatch(ctx, []byte(cmdString)))
traceInfo := cc.ctx.Session.GetSessionVars().StmtCtx.OptimizerDebugTrace
var buf bytes.Buffer
encoder := json.NewEncoder(&buf)
encoder.SetEscapeHTML(false)
require.NoError(t, encoder.Encode(traceInfo))
var res interface{}
require.NoError(t, json.Unmarshal(buf.Bytes(), &res))
testdata.OnRecord(func() {
out[i] = res
})
require.Equal(t, out[i], res, cmdString)
}
prHandle := dom.GetPlanReplayerHandle()
worker := prHandle.GetWorker()
for i := 0; i < 3; i++ {
task := prHandle.DrainTask()
success := worker.HandleTask(task)
require.True(t, success)
require.NoError(t, os.Remove(filepath.Join(replayer.GetPlanReplayerDirName(), task.FileName)))
}
}