mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
1caaa9ed4a
Update to Go 1.12.5 testing. Remove deprecated unused and gosimple pacakges, and mask staticcheck 1006. Also, fix unconvert errors related to unnecessary type conversions and following staticcheck errors: - remove redundant return statements - use for range instead of for select - use time.Since instead of time.Now().Sub - omit comparison to bool constant - replace T.Fatal and T.Fatalf in tests with T.Error and T.Fatalf respectively because the goroutine calls T.Fatal must be called in the same goroutine as the test - fix error strings that should not be capitalized - use sort.Strings(...) instead of sort.Sort(sort.StringSlice(...)) - use he status code of Canceled instead of grpc.ErrClientConnClosing which is deprecated - use use status.Errorf instead of grpc.Errorf which is deprecated Related #10528 #10438
90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
// Copyright 2015 The etcd Authors
|
|
//
|
|
// 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,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package fileutil
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"os"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
func TestLockAndUnlock(t *testing.T) {
|
|
f, err := ioutil.TempFile("", "lock")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
f.Close()
|
|
defer func() {
|
|
err = os.Remove(f.Name())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}()
|
|
|
|
// lock the file
|
|
l, err := LockFile(f.Name(), os.O_WRONLY, PrivateFileMode)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// try lock a locked file
|
|
if _, err = TryLockFile(f.Name(), os.O_WRONLY, PrivateFileMode); err != ErrLocked {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// unlock the file
|
|
if err = l.Close(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// try lock the unlocked file
|
|
dupl, err := TryLockFile(f.Name(), os.O_WRONLY, PrivateFileMode)
|
|
if err != nil {
|
|
t.Errorf("err = %v, want %v", err, nil)
|
|
}
|
|
|
|
// blocking on locked file
|
|
locked := make(chan struct{}, 1)
|
|
go func() {
|
|
bl, blerr := LockFile(f.Name(), os.O_WRONLY, PrivateFileMode)
|
|
if blerr != nil {
|
|
t.Error(blerr)
|
|
}
|
|
locked <- struct{}{}
|
|
if blerr = bl.Close(); blerr != nil {
|
|
t.Error(blerr)
|
|
}
|
|
}()
|
|
|
|
select {
|
|
case <-locked:
|
|
t.Error("unexpected unblocking")
|
|
case <-time.After(100 * time.Millisecond):
|
|
}
|
|
|
|
// unlock
|
|
if err = dupl.Close(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// the previously blocked routine should be unblocked
|
|
select {
|
|
case <-locked:
|
|
case <-time.After(1 * time.Second):
|
|
t.Error("unexpected blocking")
|
|
}
|
|
}
|