etcd/pkg/osutil/osutil_test.go
Evan Jones 85bd1af331
osutil: remove unused Unsetenv function
The osutil.Unsetenv function is not used. Today, os.Unsetenv exists
in the standard library, and is already used elsewhere in etcd.
Removing this function could break things that may be importing this
package. According to pkg.go.dev, it seems like the only thing is
etcd forks, so it may be worth getting rid of this code. See:

https://pkg.go.dev/github.com/coreos/etcd/pkg/osutil?tab=importedby

Signed-off-by: Evan Jones <ej@evanjones.ca>
2023-10-17 09:07:47 -04:00

68 lines
1.7 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 osutil
import (
"os"
"os/signal"
"syscall"
"testing"
"time"
"go.uber.org/zap/zaptest"
)
func init() { setDflSignal = func(syscall.Signal) {} }
func waitSig(t *testing.T, c <-chan os.Signal, sig os.Signal) {
select {
case s := <-c:
if s != sig {
t.Fatalf("signal was %v, want %v", s, sig)
}
case <-time.After(1 * time.Second):
t.Fatalf("timeout waiting for %v", sig)
}
}
func TestHandleInterrupts(t *testing.T) {
for _, sig := range []syscall.Signal{syscall.SIGINT, syscall.SIGTERM} {
n := 1
RegisterInterruptHandler(func() { n++ })
RegisterInterruptHandler(func() { n *= 2 })
c := make(chan os.Signal, 2)
signal.Notify(c, sig)
HandleInterrupts(zaptest.NewLogger(t))
syscall.Kill(syscall.Getpid(), sig)
// we should receive the signal once from our own kill and
// a second time from HandleInterrupts
waitSig(t, c, sig)
waitSig(t, c, sig)
if n == 3 {
t.Fatalf("interrupt handlers were called in wrong order")
}
if n != 4 {
t.Fatalf("interrupt handlers were not called properly")
}
// reset interrupt handlers
interruptHandlers = interruptHandlers[:0]
interruptExitMu.Unlock()
}
}