ebbbf8993b
DDLs that doesn't modify rows like create/drop/truncate table, create/drop database do not need to wait 2 lease on ddl worker, we can safely remove those wait to speed up DDL. But user may create a table, then insert data on that table on another TiDB server, So we need to wait in session. User can set a session variable to skip DDL wait if needed, and there is no risk of data inconsistency. This solution remove the need for user to set lease to zero when loading data, It's much more safe and easy to use.
134 lines
3.7 KiB
Go
134 lines
3.7 KiB
Go
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package testkit
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import (
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"fmt"
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"sync/atomic"
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"github.com/juju/errors"
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"github.com/pingcap/check"
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"github.com/pingcap/tidb"
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"github.com/pingcap/tidb/ast"
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"github.com/pingcap/tidb/kv"
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"github.com/pingcap/tidb/util/testutil"
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)
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// TestKit is a utility to run sql test.
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type TestKit struct {
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c *check.C
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store kv.Storage
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Se tidb.Session
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}
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// Result is the result returned by MustQuery.
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type Result struct {
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rows [][]interface{}
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comment check.CommentInterface
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c *check.C
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}
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// Check asserts the result equals the expected results.
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func (res *Result) Check(expected [][]interface{}) {
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got := fmt.Sprintf("%v", res.rows)
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need := fmt.Sprintf("%v", expected)
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res.c.Assert(got, check.Equals, need, res.comment)
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}
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// Rows returns the result data.
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func (res *Result) Rows() [][]interface{} {
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return res.rows
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}
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// NewTestKit returns a new *TestKit.
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func NewTestKit(c *check.C, store kv.Storage) *TestKit {
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return &TestKit{
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c: c,
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store: store,
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}
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}
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var connectionID uint64
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// Exec executes a sql statement.
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func (tk *TestKit) Exec(sql string, args ...interface{}) (ast.RecordSet, error) {
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var err error
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if tk.Se == nil {
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tk.Se, err = tidb.CreateSession(tk.store)
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tk.c.Assert(err, check.IsNil)
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id := atomic.AddUint64(&connectionID, 1)
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tk.Se.SetConnectionID(id)
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tk.Se.GetSessionVars().SkipDDLWait = true
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}
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if len(args) == 0 {
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var rss []ast.RecordSet
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rss, err = tk.Se.Execute(sql)
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if err == nil && len(rss) > 0 {
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return rss[0], nil
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}
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return nil, errors.Trace(err)
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}
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stmtID, _, _, err := tk.Se.PrepareStmt(sql)
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if err != nil {
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return nil, errors.Trace(err)
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}
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rs, err := tk.Se.ExecutePreparedStmt(stmtID, args...)
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if err != nil {
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return nil, errors.Trace(err)
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}
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err = tk.Se.DropPreparedStmt(stmtID)
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if err != nil {
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return nil, errors.Trace(err)
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}
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return rs, nil
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}
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// CheckExecResult checks the affected rows and the insert id after executing MustExec.
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func (tk *TestKit) CheckExecResult(affectedRows, insertID int64) {
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tk.c.Assert(affectedRows, check.Equals, int64(tk.Se.AffectedRows()))
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tk.c.Assert(insertID, check.Equals, int64(tk.Se.LastInsertID()))
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}
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// MustExec executes a sql statement and asserts nil error.
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func (tk *TestKit) MustExec(sql string, args ...interface{}) {
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_, err := tk.Exec(sql, args...)
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tk.c.Assert(err, check.IsNil, check.Commentf("sql:%s, %v", sql, args))
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}
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// MustQuery query the statements and returns result rows.
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// If expected result is set it asserts the query result equals expected result.
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func (tk *TestKit) MustQuery(sql string, args ...interface{}) *Result {
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comment := check.Commentf("sql:%s, %v", sql, args)
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rs, err := tk.Exec(sql, args...)
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tk.c.Assert(errors.ErrorStack(err), check.Equals, "", comment)
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tk.c.Assert(rs, check.NotNil, comment)
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rows, err := tidb.GetRows(rs)
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tk.c.Assert(errors.ErrorStack(err), check.Equals, "", comment)
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iRows := make([][]interface{}, len(rows))
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for i := range rows {
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row := rows[i]
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iRow := make([]interface{}, len(row))
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for j := range row {
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iRow[j] = row[j].GetValue()
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}
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iRows[i] = iRow
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}
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return &Result{rows: iRows, c: tk.c, comment: comment}
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}
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// Rows is similar to RowsWithSep, use white space as separator string.
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func Rows(args ...string) [][]interface{} {
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return testutil.RowsWithSep(" ", args...)
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}
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