Files
tidb/server/mock_conn.go

112 lines
3.0 KiB
Go

// Copyright 2021 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"
"flag"
"testing"
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/kv"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/session"
"github.com/pingcap/tidb/util/arena"
"github.com/pingcap/tidb/util/chunk"
"github.com/stretchr/testify/require"
)
// MockConn is a mock connection.
type MockConn interface {
// HandleQuery executes a statement
HandleQuery(ctx context.Context, sql string) error
// Context gets the TiDBContext
Context() *TiDBContext
// Dispatch executes command according to the command type
Dispatch(ctx context.Context, data []byte) error
// Close releases resources
Close()
}
type mockConn struct {
*clientConn
t *testing.T
}
// HandleQuery implements MockConn.HandleQuery
func (mc *mockConn) HandleQuery(ctx context.Context, sql string) error {
return mc.handleQuery(ctx, sql)
}
// Context implements MockConn.Context
func (mc *mockConn) Context() *TiDBContext {
return mc.ctx
}
// Dispatch implements MockConn.Dispatch
func (mc *mockConn) Dispatch(ctx context.Context, data []byte) error {
return mc.dispatch(ctx, data)
}
// Close implements MockConn.Close
func (mc *mockConn) Close() {
require.NoError(mc.t, mc.clientConn.Close())
}
// CreateMockServer creates a mock server.
func CreateMockServer(t *testing.T, store kv.Storage) *Server {
if !RunInGoTest {
// If CreateMockServer is called in another package, RunInGoTest is not initialized.
RunInGoTest = flag.Lookup("test.v") != nil || flag.Lookup("check.v") != nil
}
tidbdrv := NewTiDBDriver(store)
cfg := config.NewConfig()
cfg.Socket = ""
cfg.Port, cfg.Status.StatusPort = 0, 0
cfg.Status.ReportStatus = false
cfg.Security.AutoTLS = false
server, err := NewServer(cfg, tidbdrv)
require.NoError(t, err)
return server
}
// CreateMockConn creates a mock connection together with a session.
func CreateMockConn(t *testing.T, store kv.Storage, server *Server) MockConn {
se, err := session.CreateSession4Test(store)
require.NoError(t, err)
tc := &TiDBContext{
Session: se,
stmts: make(map[int]*TiDBStatement),
}
cc := &clientConn{
server: server,
ctx: tc,
salt: []byte{},
collation: mysql.DefaultCollationID,
alloc: arena.NewAllocator(1024),
chunkAlloc: chunk.NewAllocator(),
pkt: &packetIO{
bufWriter: bufio.NewWriter(bytes.NewBuffer(nil)),
},
}
return &mockConn{
clientConn: cc,
t: t,
}
}