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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 kv
import (
"errors"
"time"
. "github.com/pingcap/check"
"github.com/pingcap/tidb/util/testleak"
)
var _ = Suite(&testTxnSuite{})
type testTxnSuite struct {
}
func (s *testTxnSuite) SetUpTest(c *C) {
}
func (s *testTxnSuite) TearDownTest(c *C) {
}
func (s *testTxnSuite) TestBackOff(c *C) {
defer testleak.AfterTest(c)()
mustBackOff(c, 1, 2)
mustBackOff(c, 2, 4)
mustBackOff(c, 3, 8)
mustBackOff(c, 100000, 100)
}
func mustBackOff(c *C, cnt uint, sleep int) {
c.Assert(BackOff(cnt), LessEqual, sleep*int(time.Millisecond))
}
func (s *testTxnSuite) TestRetryExceedCountError(c *C) {
defer testleak.AfterTest(c)()
defer func(cnt uint) {
maxRetryCnt = cnt
}(maxRetryCnt)
maxRetryCnt = 5
err := RunInNewTxn(&mockStorage{}, true, func(txn Transaction) error {
return nil
})
c.Assert(err, NotNil)
err = RunInNewTxn(&mockStorage{}, true, func(txn Transaction) error {
return ErrTxnRetryable
})
c.Assert(err, NotNil)
err = RunInNewTxn(&mockStorage{}, true, func(txn Transaction) error {
return errors.New("do not retry")
})
c.Assert(err, NotNil)
var cfg InjectionConfig
err1 := errors.New("foo")
cfg.SetGetError(err1)
cfg.SetCommitError(err1)
storage := NewInjectedStore(NewMockStorage(), &cfg)
err = RunInNewTxn(storage, true, func(txn Transaction) error {
return nil
})
c.Assert(err, NotNil)
}
func (s *testTxnSuite) TestBasicFunc(c *C) {
if IsMockCommitErrorEnable() {
defer MockCommitErrorEnable()
} else {
defer MockCommitErrorDisable()
}
MockCommitErrorEnable()
c.Assert(IsMockCommitErrorEnable(), IsTrue)
MockCommitErrorDisable()
c.Assert(IsMockCommitErrorEnable(), IsFalse)
}