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https://github.com/etcd-io/etcd.git
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5b8c6b548f
Check the values of myKey and myRev first in Unlock method to prevent calling Unlock without Lock. Because this may cause the value of pfx to be deleted by mistake. Signed-off-by: chenyahui <cyhone@qq.com>
113 lines
2.5 KiB
Go
113 lines
2.5 KiB
Go
// Copyright 2019 The etcd Authors
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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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 concurrency_test
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import (
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"context"
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"errors"
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"testing"
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"go.etcd.io/etcd/client/v3"
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"go.etcd.io/etcd/client/v3/concurrency"
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integration2 "go.etcd.io/etcd/tests/v3/framework/integration"
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)
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func TestMutexLockSessionExpired(t *testing.T) {
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cli, err := integration2.NewClient(t, clientv3.Config{Endpoints: exampleEndpoints()})
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if err != nil {
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t.Fatal(err)
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}
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defer cli.Close()
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// create two separate sessions for lock competition
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s1, err := concurrency.NewSession(cli)
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if err != nil {
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t.Fatal(err)
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}
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defer s1.Close()
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m1 := concurrency.NewMutex(s1, "/my-lock/")
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s2, err := concurrency.NewSession(cli)
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if err != nil {
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t.Fatal(err)
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}
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m2 := concurrency.NewMutex(s2, "/my-lock/")
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// acquire lock for s1
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if err := m1.Lock(context.TODO()); err != nil {
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t.Fatal(err)
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}
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m2Locked := make(chan struct{})
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var err2 error
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go func() {
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defer close(m2Locked)
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// m2 blocks since m1 already acquired lock /my-lock/
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if err2 = m2.Lock(context.TODO()); err2 == nil {
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t.Error("expect session expired error")
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}
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}()
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// revoke the session of m2 before unlock m1
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err = s2.Close()
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if err != nil {
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t.Fatal(err)
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}
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if err := m1.Unlock(context.TODO()); err != nil {
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t.Fatal(err)
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}
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<-m2Locked
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}
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func TestMutexUnlock(t *testing.T) {
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cli, err := integration2.NewClient(t, clientv3.Config{Endpoints: exampleEndpoints()})
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if err != nil {
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t.Fatal(err)
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}
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defer cli.Close()
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s1, err := concurrency.NewSession(cli)
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if err != nil {
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t.Fatal(err)
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}
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defer s1.Close()
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m1 := concurrency.NewMutex(s1, "/my-lock/")
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err = m1.Unlock(context.TODO())
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if err == nil {
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t.Fatal("expect lock released error")
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}
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if !errors.Is(err, concurrency.ErrLockReleased) {
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t.Fatal(err)
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}
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if err := m1.Lock(context.TODO()); err != nil {
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t.Fatal(err)
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}
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if err := m1.Unlock(context.TODO()); err != nil {
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t.Fatal(err)
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}
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err = m1.Unlock(context.TODO())
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if err == nil {
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t.Fatal("expect lock released error")
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}
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if !errors.Is(err, concurrency.ErrLockReleased) {
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t.Fatal(err)
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}
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}
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