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119 lines
2.5 KiB
119 lines
2.5 KiB
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
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//
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// Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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// +build go1.13,cgo
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package sqlite3
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import (
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"context"
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"database/sql"
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"database/sql/driver"
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"errors"
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"os"
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"testing"
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)
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func TestBeginTxCancel(t *testing.T) {
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srcTempFilename := TempFilename(t)
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defer os.Remove(srcTempFilename)
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db, err := sql.Open("sqlite3", srcTempFilename)
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if err != nil {
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t.Fatal(err)
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}
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db.SetMaxOpenConns(10)
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db.SetMaxIdleConns(5)
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defer db.Close()
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initDatabase(t, db, 100)
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// create several go-routines to expose racy issue
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for i := 0; i < 1000; i++ {
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func() {
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ctx, cancel := context.WithCancel(context.Background())
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conn, err := db.Conn(ctx)
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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if err := conn.Close(); err != nil {
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t.Error(err)
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}
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}()
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err = conn.Raw(func(driverConn interface{}) error {
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d, ok := driverConn.(driver.ConnBeginTx)
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if !ok {
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t.Fatal("unexpected: wrong type")
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}
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// checks that conn.Raw can be used to get *SQLiteConn
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if _, ok = driverConn.(*SQLiteConn); !ok {
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t.Fatalf("conn.Raw() driverConn type=%T, expected *SQLiteConn", driverConn)
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}
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go cancel() // make it cancel concurrently with exec("BEGIN");
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tx, err := d.BeginTx(ctx, driver.TxOptions{})
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switch err {
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case nil:
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switch err := tx.Rollback(); err {
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case nil, sql.ErrTxDone:
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default:
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return err
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}
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case context.Canceled:
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default:
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// must not fail with "cannot start a transaction within a transaction"
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return err
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}
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return nil
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})
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if err != nil {
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t.Fatal(err)
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}
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}()
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}
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}
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func TestStmtReadonly(t *testing.T) {
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db, err := sql.Open("sqlite3", ":memory:")
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if err != nil {
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t.Fatal(err)
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}
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_, err = db.Exec("CREATE TABLE t (count INT)")
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if err != nil {
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t.Fatal(err)
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}
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isRO := func(query string) bool {
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c, err := db.Conn(context.Background())
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if err != nil {
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return false
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}
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var ro bool
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c.Raw(func(dc interface{}) error {
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stmt, err := dc.(*SQLiteConn).Prepare(query)
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if err != nil {
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return err
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}
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if stmt == nil {
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return errors.New("stmt is nil")
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}
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ro = stmt.(*SQLiteStmt).Readonly()
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return nil
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})
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return ro // On errors ro will remain false.
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}
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if !isRO(`select * from t`) {
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t.Error("select not seen as read-only")
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}
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if isRO(`insert into t values (1), (2)`) {
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t.Error("insert seen as read-only")
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}
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}
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