Files
tidb/pkg/domain/db_test.go

204 lines
6.4 KiB
Go

// Copyright 2019 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 domain_test
import (
"context"
"fmt"
"testing"
"time"
"github.com/pingcap/failpoint"
"github.com/pingcap/tidb/pkg/config"
"github.com/pingcap/tidb/pkg/ddl"
"github.com/pingcap/tidb/pkg/domain/infosync"
"github.com/pingcap/tidb/pkg/keyspace"
"github.com/pingcap/tidb/pkg/kv"
"github.com/pingcap/tidb/pkg/meta"
"github.com/pingcap/tidb/pkg/server"
"github.com/pingcap/tidb/pkg/session"
"github.com/pingcap/tidb/pkg/sessionctx/vardef"
"github.com/pingcap/tidb/pkg/store/mockstore"
"github.com/pingcap/tidb/pkg/testkit"
"github.com/pingcap/tidb/pkg/testkit/testfailpoint"
"github.com/pingcap/tidb/pkg/util/mathutil"
"github.com/stretchr/testify/require"
)
func TestDomainSession(t *testing.T) {
lease := 50 * time.Millisecond
store, err := mockstore.NewMockStore()
require.NoError(t, err)
defer func() {
err := store.Close()
require.NoError(t, err)
}()
vardef.SetSchemaLease(lease)
domain, err := session.BootstrapSession(store)
require.NoError(t, err)
ddl.DisableTiFlashPoll(domain.DDL())
defer domain.Close()
// for NotifyUpdatePrivilege
createRoleSQL := `CREATE ROLE 'test'@'localhost';`
se, err := session.CreateSession4Test(store)
require.NoError(t, err)
_, err = se.Execute(context.Background(), createRoleSQL)
require.NoError(t, err)
// for BindingHandle
_, err = se.Execute(context.Background(), "use test")
require.NoError(t, err)
_, err = se.Execute(context.Background(), "drop table if exists t")
require.NoError(t, err)
_, err = se.Execute(context.Background(), "create table t(i int, s varchar(20), index index_t(i, s))")
require.NoError(t, err)
_, err = se.Execute(context.Background(), "create global binding for select * from t where i>100 using select * from t use index(index_t) where i>100")
require.NoError(t, err)
}
func TestNormalSessionPool(t *testing.T) {
lease := 100 * time.Millisecond
store, err := mockstore.NewMockStore()
require.NoError(t, err)
defer func() {
err := store.Close()
require.NoError(t, err)
}()
vardef.SetSchemaLease(lease)
domain, err := session.BootstrapSession(store)
require.NoError(t, err)
defer domain.Close()
info, err1 := infosync.GlobalInfoSyncerInit(context.Background(), "t", func() uint64 { return 1 }, nil, nil, nil, nil, keyspace.CodecV1, true, domain.InfoCache())
require.NoError(t, err1)
conf := config.GetGlobalConfig()
conf.Socket = ""
conf.Port = 0
conf.Status.ReportStatus = false
svr, err := server.NewServer(conf, nil)
require.NoError(t, err)
svr.SetDomain(domain)
info.SetSessionManager(svr)
pool := domain.SysSessionPool()
se, err := pool.Get()
require.NoError(t, err)
require.NotEmpty(t, se)
require.Equal(t, svr.InternalSessionExists(se), true)
pool.Put(se)
require.Equal(t, svr.InternalSessionExists(se), false)
}
func TestAbnormalSessionPool(t *testing.T) {
lease := 100 * time.Millisecond
store, err := mockstore.NewMockStore()
require.NoError(t, err)
defer func() {
err := store.Close()
require.NoError(t, err)
}()
vardef.SetSchemaLease(lease)
domain, err := session.BootstrapSession(store)
require.NoError(t, err)
defer domain.Close()
info, err1 := infosync.GlobalInfoSyncerInit(context.Background(), "t", func() uint64 { return 1 }, nil, nil, nil, nil, keyspace.CodecV1, true, domain.InfoCache())
require.NoError(t, err1)
conf := config.GetGlobalConfig()
conf.Socket = ""
conf.Port = 0
conf.Status.ReportStatus = false
svr, err := server.NewServer(conf, nil)
require.NoError(t, err)
svr.SetDomain(domain)
info.SetSessionManager(svr)
pool := domain.SysSessionPool()
failpoint.Enable("github.com/pingcap/tidb/pkg/util/mockSessionPoolReturnError", "return")
se, err := pool.Get()
require.Error(t, err)
failpoint.Disable("github.com/pingcap/tidb/pkg/util/mockSessionPoolReturnError")
require.Equal(t, svr.InternalSessionExists(se), false)
}
func TestTetchAllSchemasWithTables(t *testing.T) {
lease := 100 * time.Millisecond
store, err := mockstore.NewMockStore()
require.NoError(t, err)
defer func() {
err := store.Close()
require.NoError(t, err)
}()
vardef.SetSchemaLease(lease)
domain, err := session.BootstrapSession(store)
require.NoError(t, err)
defer domain.Close()
snapshot := store.GetSnapshot(kv.NewVersion(mathutil.MaxUint))
m := meta.NewReader(snapshot)
dbs, err := domain.FetchAllSchemasWithTables(m)
require.NoError(t, err)
require.Equal(t, len(dbs), 3)
tk := testkit.NewTestKit(t, store)
tk.MustExec("create database test1")
tk.MustExec("use test1")
tk.MustExec("create table t1(i int, s varchar(20), index index_t(i, s))")
tk.MustExec("create table t2(i int, s varchar(20), index index_t(i, s))")
tk.MustExec("create database test2")
dbs, err = domain.FetchAllSchemasWithTables(m)
require.NoError(t, err)
require.Equal(t, len(dbs), 5)
}
func TestFetchAllSchemasWithTablesWithFailpoint(t *testing.T) {
lease := 100 * time.Millisecond
store, err := mockstore.NewMockStore()
require.NoError(t, err)
defer func() {
err := store.Close()
require.NoError(t, err)
}()
vardef.SetSchemaLease(lease)
domain, err := session.BootstrapSession(store)
require.NoError(t, err)
defer domain.Close()
snapshot := store.GetSnapshot(kv.NewVersion(mathutil.MaxUint))
m := meta.NewReader(snapshot)
dbs, err := domain.FetchAllSchemasWithTables(m)
require.NoError(t, err)
require.Equal(t, len(dbs), 3)
tk := testkit.NewTestKit(t, store)
for i := 1; i <= 1000; i++ {
dbName := fmt.Sprintf("test_%d", i)
tk.MustExec("create database " + dbName)
}
vardef.SchemaCacheSize.Store(1000000)
dbs, err = domain.FetchAllSchemasWithTables(m)
require.NoError(t, err)
require.Equal(t, len(dbs), 1003)
// inject the failpoint
testfailpoint.Enable(t, "github.com/pingcap/tidb/pkg/infoschema/issyncer/failed-fetch-schemas-with-tables", "return()")
dbs, err = domain.FetchAllSchemasWithTables(m)
require.Error(t, err)
require.Equal(t, err.Error(), "failpoint: failed to fetch schemas with tables")
require.Nil(t, dbs)
}