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tidb_test.go
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// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package tidb
import (
"database/sql"
"flag"
"fmt"
"os"
"runtime"
"sync"
"testing"
"github.com/ngaut/log"
. "github.com/pingcap/check"
"github.com/pingcap/tidb/kv"
mysql "github.com/pingcap/tidb/mysqldef"
"github.com/pingcap/tidb/rset"
"github.com/pingcap/tidb/sessionctx/variable"
)
var store = flag.String("store", "memory", "registered store name, [memory, goleveldb, boltdb]")
func TestT(t *testing.T) {
TestingT(t)
}
var _ = Suite(&testMainSuite{})
var _ = Suite(&testSessionSuite{})
type testMainSuite struct {
dbName string
createDBSQL string
dropDBSQL string
useDBSQL string
createTableSQL string
insertSQL string
selectSQL string
}
func (s *testMainSuite) SetUpSuite(c *C) {
s.dbName = "test_main_db"
s.createDBSQL = fmt.Sprintf("create database if not exists %s;", s.dbName)
s.dropDBSQL = fmt.Sprintf("drop database %s;", s.dbName)
s.useDBSQL = fmt.Sprintf("use %s;", s.dbName)
s.createTableSQL = `
CREATE TABLE tbl_test(id INT NOT NULL DEFAULT 1, name varchar(255), PRIMARY KEY(id));
CREATE TABLE tbl_test1(id INT NOT NULL DEFAULT 2, name varchar(255), PRIMARY KEY(id), INDEX name(name));
CREATE TABLE tbl_test2(id INT NOT NULL DEFAULT 3, name varchar(255), PRIMARY KEY(id));`
s.selectSQL = `SELECT * from tbl_test;`
runtime.GOMAXPROCS(runtime.NumCPU())
log.SetLevelByString("error")
}
func (s *testMainSuite) TearDownSuite(c *C) {
removeStore(c, s.dbName)
}
func mustBegin(c *C, currDB *sql.DB) *sql.Tx {
tx, err := currDB.Begin()
c.Assert(err, IsNil)
return tx
}
func mustCommit(c *C, tx *sql.Tx) {
err := tx.Commit()
c.Assert(err, IsNil)
}
func mustExecuteSQL(c *C, tx *sql.Tx, sql string, args ...interface{}) sql.Result {
r, err := tx.Exec(sql, args...)
c.Assert(err, IsNil)
return r
}
func mustExec(c *C, currDB *sql.DB, sql string, args ...interface{}) sql.Result {
tx := mustBegin(c, currDB)
r := mustExecuteSQL(c, tx, sql, args...)
mustCommit(c, tx)
return r
}
func checkResult(c *C, r sql.Result, affectedRows int64, insertID int64) {
gotRows, err := r.RowsAffected()
c.Assert(err, IsNil)
c.Assert(gotRows, Equals, affectedRows)
gotID, err := r.LastInsertId()
c.Assert(err, IsNil)
c.Assert(gotID, Equals, insertID)
}
type testSessionSuite struct {
dbName string
createDBSQL string
dropDBSQL string
useDBSQL string
createTableSQL string
dropTableSQL string
insertSQL string
selectSQL string
}
func (s *testMainSuite) TestConcurrent(c *C) {
dbName := "test_concurrent_db"
defer removeStore(c, dbName)
testDB, err := sql.Open(DriverName, *store+"://"+dbName)
c.Assert(err, IsNil)
defer testDB.Close()
var wg sync.WaitGroup
// create db
createDBSQL := fmt.Sprintf("create database if not exists %s;", dbName)
dropDBSQL := fmt.Sprintf("drop database %s;", dbName)
useDBSQL := fmt.Sprintf("use %s;", dbName)
createTableSQL := ` CREATE TABLE test(id INT NOT NULL DEFAULT 1, name varchar(255), PRIMARY KEY(id)); `
mustExec(c, testDB, dropDBSQL)
mustExec(c, testDB, createDBSQL)
mustExec(c, testDB, useDBSQL)
mustExec(c, testDB, createTableSQL)
f := func(start, count int) {
defer wg.Done()
for i := 0; i < count; i++ {
// insert data
mustExec(c, testDB, fmt.Sprintf(`INSERT INTO test VALUES (%d, "hello");`, start+i))
}
}
step := 10
for i := 0; i < step; i++ {
wg.Add(1)
go f(i*step, step)
}
wg.Wait()
mustExec(c, testDB, dropDBSQL)
}
func (s *testMainSuite) TestTableInfoMeta(c *C) {
testDB, err := sql.Open(DriverName, *store+"://"+s.dbName)
c.Assert(err, IsNil)
defer testDB.Close()
// create db
mustExec(c, testDB, s.createDBSQL)
// use db
mustExec(c, testDB, s.useDBSQL)
// create table
mustExec(c, testDB, s.createTableSQL)
// insert data
r := mustExec(c, testDB, `INSERT INTO tbl_test VALUES (1, "hello");`)
checkResult(c, r, 1, 0)
r = mustExec(c, testDB, `INSERT INTO tbl_test VALUES (2, "hello");`)
checkResult(c, r, 1, 0)
r = mustExec(c, testDB, `UPDATE tbl_test SET name = "abc" where id = 2;`)
checkResult(c, r, 1, 0)
r = mustExec(c, testDB, `DELETE from tbl_test where id = 2;`)
checkResult(c, r, 1, 0)
// select data
tx := mustBegin(c, testDB)
rows, err := tx.Query(s.selectSQL)
c.Assert(err, IsNil)
defer rows.Close()
for rows.Next() {
var id int
var name string
rows.Scan(&id, &name)
c.Assert(id, Equals, 1)
c.Assert(name, Equals, "hello")
}
mustCommit(c, tx)
// drop db
mustExec(c, testDB, s.dropDBSQL)
}
func (s *testMainSuite) TestInfoSchema(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
rs := mustExecSQL(c, se, "SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.CHARACTER_SETS WHERE CHARACTER_SET_NAME = 'utf8mb4'")
row, err := rs.FirstRow()
c.Assert(err, IsNil)
match(c, row, "utf8mb4")
}
func (s *testMainSuite) TestCaseInsensitive(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
mustExecSQL(c, se, "create table T (a text, B int)")
mustExecSQL(c, se, "insert t (A, b) values ('aaa', 1)")
rs := mustExecSQL(c, se, "select * from t")
fields, err := rs.Fields()
c.Assert(err, IsNil)
c.Assert(fields[0].Name, Equals, "a")
c.Assert(fields[1].Name, Equals, "B")
rs = mustExecSQL(c, se, "select A, b from t")
fields, err = rs.Fields()
c.Assert(err, IsNil)
c.Assert(fields[0].Name, Equals, "A")
c.Assert(fields[1].Name, Equals, "b")
mustExecSQL(c, se, "update T set b = B + 1")
mustExecSQL(c, se, "update T set B = b + 1")
rs = mustExecSQL(c, se, "select b from T")
rows, err := rs.Rows(-1, 0)
c.Assert(err, IsNil)
match(c, rows[0], 3)
mustExecSQL(c, se, s.dropDBSQL)
}
func (s *testMainSuite) TestDriverPrepare(c *C) {
testDB, err := sql.Open(DriverName, *store+"://"+s.dbName)
c.Assert(err, IsNil)
defer testDB.Close()
// create db
mustExec(c, testDB, s.createDBSQL)
// use db
mustExec(c, testDB, s.useDBSQL)
// create table
mustExec(c, testDB, "create table t (a int, b int)")
mustExec(c, testDB, "insert t values (?, ?)", 1, 2)
row := testDB.QueryRow("select * from t where 1 = ?", 1)
// TODO: This will fail test
// row := testDB.QueryRow("select ?, ? from t", "a", "b")
var a, b int
err = row.Scan(&a, &b)
c.Assert(err, IsNil)
c.Assert(a, Equals, 1)
c.Assert(b, Equals, 2)
mustExec(c, testDB, s.dropDBSQL)
}
func sessionExec(c *C, se Session, sql string) ([]rset.Recordset, error) {
se.Execute("BEGIN;")
r, err := se.Execute(sql)
c.Assert(err, IsNil)
se.Execute("COMMIT;")
return r, err
}
func (s *testSessionSuite) SetUpSuite(c *C) {
s.dbName = "test_session_db"
s.createDBSQL = fmt.Sprintf("create database if not exists %s;", s.dbName)
s.dropDBSQL = fmt.Sprintf("drop database %s;", s.dbName)
s.useDBSQL = fmt.Sprintf("use %s;", s.dbName)
s.dropTableSQL = `Drop TABLE if exists t;`
s.createTableSQL = `CREATE TABLE t(id TEXT);`
s.selectSQL = `SELECT * from t;`
}
func (s *testSessionSuite) TearDownSuite(c *C) {
removeStore(c, s.dbName)
}
func (s *testSessionSuite) TestPrepare(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
// create table
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, s.createTableSQL)
// insert data
mustExecSQL(c, se, `INSERT INTO t VALUES ("id");`)
id, ps, _, err := se.PrepareStmt("select id+? from t")
c.Assert(err, IsNil)
c.Assert(id, Equals, uint32(1))
c.Assert(ps, Equals, 1)
mustExecSQL(c, se, `set @a=1`)
_, err = se.ExecutePreparedStmt(id, "1")
c.Assert(err, IsNil)
err = se.DropPreparedStmt(id)
c.Assert(err, IsNil)
mustExecSQL(c, se, s.dropDBSQL)
}
func (s *testSessionSuite) TestAffectedRows(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, s.createTableSQL)
mustExecSQL(c, se, `INSERT INTO t VALUES ("a");`)
c.Assert(int(se.AffectedRows()), Equals, 1)
mustExecSQL(c, se, `INSERT INTO t VALUES ("b");`)
c.Assert(int(se.AffectedRows()), Equals, 1)
mustExecSQL(c, se, `UPDATE t set id = 'c' where id = 'a';`)
c.Assert(int(se.AffectedRows()), Equals, 1)
mustExecSQL(c, se, `UPDATE t set id = 'a' where id = 'a';`)
c.Assert(int(se.AffectedRows()), Equals, 0)
mustExecSQL(c, se, `SELECT * from t;`)
c.Assert(int(se.AffectedRows()), Equals, 0)
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (id int, data int)")
mustExecSQL(c, se, `INSERT INTO t VALUES (1, 0), (0, 0), (1, 1);`)
mustExecSQL(c, se, `UPDATE t set id = 1 where data = 0;`)
c.Assert(int(se.AffectedRows()), Equals, 1)
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (id int, c1 timestamp);")
mustExecSQL(c, se, `insert t values(1, 0);`)
mustExecSQL(c, se, `UPDATE t set id = 1 where id = 1;`)
c.Assert(int(se.AffectedRows()), Equals, 0)
// With ON DUPLICATE KEY UPDATE, the affected-rows value per row is 1 if the row is inserted as a new row,
// 2 if an existing row is updated, and 0 if an existing row is set to its current values.
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (c1 int PRIMARY KEY, c2 int);")
mustExecSQL(c, se, `insert t values(1, 1);`)
mustExecSQL(c, se, `insert into t values (1, 1) on duplicate key update c2=2;`)
c.Assert(int(se.AffectedRows()), Equals, 2)
mustExecSQL(c, se, `insert into t values (1, 1) on duplicate key update c2=2;`)
c.Assert(int(se.AffectedRows()), Equals, 0)
se.SetClientCapability(mysql.ClientFoundRows)
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (id int, data int)")
mustExecSQL(c, se, `INSERT INTO t VALUES (1, 0), (0, 0), (1, 1);`)
mustExecSQL(c, se, `UPDATE t set id = 1 where data = 0;`)
c.Assert(int(se.AffectedRows()), Equals, 2)
sessionExec(c, se, s.dropDBSQL)
}
func (s *testSessionSuite) TestResultField(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
// create table
mustExecSQL(c, se, s.dropTableSQL)
mustExecSQL(c, se, "create table t (id int);")
mustExecSQL(c, se, `INSERT INTO t VALUES (1);`)
mustExecSQL(c, se, `INSERT INTO t VALUES (2);`)
r := mustExecSQL(c, se, `SELECT count(*) from t;`)
c.Assert(r, NotNil)
_, err := r.Rows(-1, 0)
c.Assert(err, IsNil)
fields, err := r.Fields()
c.Assert(err, IsNil)
c.Assert(len(fields), Equals, 1)
field := fields[0]
c.Assert(field.Tp, Equals, mysql.TypeLonglong)
c.Assert(field.Flen, Equals, 21)
mustExecSQL(c, se, s.dropDBSQL)
}
func (s *testSessionSuite) TestPrimaryKeyAutoincrement(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL, name varchar(255) UNIQUE NOT NULL, status int)")
mustExecSQL(c, se, "insert t (name) values (?)", "abc")
id := se.LastInsertID()
c.Check(id != 0, IsTrue)
se2 := newSession(c, store, s.dbName)
rs := mustExecSQL(c, se2, "select * from t")
c.Assert(rs, NotNil)
row, err := rs.FirstRow()
c.Assert(err, IsNil)
match(c, row, id, "abc", nil)
mustExecSQL(c, se, "update t set name = 'abc', status = 1 where id = ?", id)
rs = mustExecSQL(c, se2, "select * from t")
c.Assert(rs, NotNil)
row, err = rs.FirstRow()
c.Assert(err, IsNil)
match(c, row, id, "abc", 1)
mustExecSQL(c, se, s.dropDBSQL)
}
func (s *testSessionSuite) TestAutoincrementID(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
mustExecSQL(c, se, "drop table if exists t")
mustExecSQL(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)")
mustExecSQL(c, se, "insert t values ()")
mustExecSQL(c, se, "insert t values ()")
mustExecSQL(c, se, "insert t values ()")
se.Execute("drop table if exists t;")
mustExecSQL(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)")
mustExecSQL(c, se, "insert t values ()")
c.Assert(se.LastInsertID(), Less, uint64(4))
mustExecSQL(c, se, s.dropDBSQL)
}
// See: http://dev.mysql.com/doc/refman/5.7/en/commit.html
func (s *testSessionSuite) TestAutoicommit(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
mustExecSQL(c, se, "drop table if exists t")
c.Assert(se.(*session).txn, Equals, nil)
mustExecSQL(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)")
c.Assert(se.(*session).txn, Equals, nil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, false)
mustExecSQL(c, se, "insert t values ()")
c.Assert(se.(*session).txn, IsNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, false)
mustExecSQL(c, se, "begin")
c.Assert(se.(*session).txn, NotNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, true)
mustExecSQL(c, se, "insert t values ()")
c.Assert(se.(*session).txn, NotNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, true)
se.Execute("drop table if exists t;")
c.Assert(se.(*session).txn, IsNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, true)
mustExecSQL(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)")
c.Assert(se.(*session).txn, IsNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, true)
mustExecSQL(c, se, "insert t values ()")
c.Assert(se.(*session).txn, NotNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, true)
mustExecSQL(c, se, "commit")
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, false)
c.Assert(se.(*session).txn, IsNil)
mustExecSQL(c, se, "insert t values ()")
c.Assert(se.(*session).txn, IsNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, false)
se.Execute("drop table if exists t;")
mustExecSQL(c, se, "create table t (id BIGINT PRIMARY KEY AUTO_INCREMENT NOT NULL)")
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, false)
mustExecSQL(c, se, "begin")
c.Assert(se.(*session).txn, NotNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, true)
mustExecSQL(c, se, "insert t values ()")
c.Assert(se.(*session).txn, NotNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, true)
mustExecSQL(c, se, "rollback")
c.Assert(se.(*session).txn, IsNil)
c.Assert(variable.GetSessionVars(se.(*session)).DisableAutocommit, Equals, false)
mustExecSQL(c, se, s.dropDBSQL)
}
// See: http://dev.mysql.com/doc/refman/5.7/en/commit.html
func (s *testSessionSuite) TestRowLock(c *C) {
c.Skip("Need retry feature")
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
se1 := newSession(c, store, s.dbName)
se2 := newSession(c, store, s.dbName)
mustExecSQL(c, se, "drop table if exists t")
c.Assert(se.(*session).txn, Equals, nil)
mustExecSQL(c, se, "create table t (c1 int, c2 int, c3 int)")
mustExecSQL(c, se, "insert t values (11, 2, 3)")
mustExecSQL(c, se, "insert t values (12, 2, 3)")
mustExecSQL(c, se, "insert t values (13, 2, 3)")
mustExecSQL(c, se1, "begin")
mustExecSQL(c, se1, "update t set c2=21 where c1=11")
mustExecSQL(c, se2, "begin")
mustExecSQL(c, se2, "update t set c2=211 where c1=11")
mustExecSQL(c, se2, "commit")
_, err := exec(c, se1, "commit")
// row lock conflict but can still success
c.Assert(err, IsNil)
mustExecSQL(c, se1, "begin")
mustExecSQL(c, se1, "update t set c2=21 where c1=11")
mustExecSQL(c, se2, "begin")
mustExecSQL(c, se2, "update t set c2=22 where c1=12")
mustExecSQL(c, se2, "commit")
mustExecSQL(c, se1, "commit")
mustExecSQL(c, se, s.dropDBSQL)
}
func (s *testSessionSuite) TestSelectForUpdate(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
se1 := newSession(c, store, s.dbName)
se2 := newSession(c, store, s.dbName)
mustExecSQL(c, se, "drop table if exists t")
c.Assert(se.(*session).txn, Equals, nil)
mustExecSQL(c, se, "create table t (c1 int, c2 int, c3 int)")
mustExecSQL(c, se, "insert t values (11, 2, 3)")
mustExecSQL(c, se, "insert t values (12, 2, 3)")
mustExecSQL(c, se, "insert t values (13, 2, 3)")
// conflict
mustExecSQL(c, se1, "begin")
rs, err := exec(c, se1, "select * from t where c1=11 for update")
_, err = rs.Rows(-1, 0)
mustExecSQL(c, se2, "begin")
mustExecSQL(c, se2, "update t set c2=211 where c1=11")
mustExecSQL(c, se2, "commit")
_, err = exec(c, se1, "commit")
c.Assert(err, NotNil)
// not conflict
mustExecSQL(c, se1, "begin")
rs, err = exec(c, se1, "select * from t where c1=11 for update")
_, err = rs.Rows(-1, 0)
mustExecSQL(c, se2, "begin")
mustExecSQL(c, se2, "update t set c2=22 where c1=12")
mustExecSQL(c, se2, "commit")
mustExecSQL(c, se1, "commit")
// not conflict, auto commit
mustExecSQL(c, se1, "set @@autocommit=1;")
rs, err = exec(c, se1, "select * from t where c1=11 for update")
_, err = rs.Rows(-1, 0)
mustExecSQL(c, se2, "begin")
mustExecSQL(c, se2, "update t set c2=211 where c1=11")
mustExecSQL(c, se2, "commit")
_, err = exec(c, se1, "commit")
c.Assert(err, IsNil)
mustExecSQL(c, se, s.dropDBSQL)
err = se.Close()
c.Assert(err, IsNil)
err = se1.Close()
c.Assert(err, IsNil)
err = se2.Close()
c.Assert(err, IsNil)
}
func newSession(c *C, store kv.Storage, dbName string) Session {
se, err := CreateSession(store)
c.Assert(err, IsNil)
mustExecSQL(c, se, "create database if not exists "+dbName)
mustExecSQL(c, se, "use "+dbName)
return se
}
// Testcase for session
func (s *testSessionSuite) TestSession(c *C) {
store := newStore(c, s.dbName)
se := newSession(c, store, s.dbName)
mustExecSQL(c, se, "ROLLBACK;")
err := se.Close()
c.Assert(err, IsNil)
}
func newStore(c *C, dbPath string) kv.Storage {
store, err := NewStore(*store + "://" + dbPath)
c.Assert(err, IsNil)
return store
}
func removeStore(c *C, dbPath string) {
os.RemoveAll(dbPath)
}
func exec(c *C, se Session, sql string, args ...interface{}) (rset.Recordset, error) {
if len(args) == 0 {
rs, err := se.Execute(sql)
if err == nil && len(rs) > 0 {
return rs[0], nil
}
return nil, err
}
stmtID, _, _, err := se.PrepareStmt(sql)
if err != nil {
return nil, err
}
rs, err := se.ExecutePreparedStmt(stmtID, args...)
if err != nil {
return nil, err
}
err = se.DropPreparedStmt(stmtID)
if err != nil {
return nil, err
}
return rs, nil
}
func mustExecSQL(c *C, se Session, sql string, args ...interface{}) rset.Recordset {
rs, err := exec(c, se, sql, args...)
c.Assert(err, IsNil)
return rs
}
func match(c *C, row []interface{}, expected ...interface{}) {
c.Assert(len(row), Equals, len(expected))
for i := range row {
got := fmt.Sprintf("%v", row[i])
need := fmt.Sprintf("%v", expected[i])
c.Assert(got, Equals, need)
}
}