mirror of
https://github.com/etcd-io/etcd.git
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7a1739a3e8
The go runtime won't always reinstall the default signal handler on the SIGTERM path, so it's possible the signal won't terminate the process. Instead, force SIG_DFL for the signal.
91 lines
2.2 KiB
Go
91 lines
2.2 KiB
Go
// Copyright 2015 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 osutil
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import (
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"os"
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"os/signal"
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"reflect"
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"syscall"
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"testing"
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"time"
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)
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func init() { setDflSignal = func(syscall.Signal) {} }
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func TestUnsetenv(t *testing.T) {
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tests := []string{
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"data",
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"space data",
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"equal=data",
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}
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for i, tt := range tests {
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key := "ETCD_UNSETENV_TEST"
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if os.Getenv(key) != "" {
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t.Fatalf("#%d: cannot get empty %s", i, key)
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}
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env := os.Environ()
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if err := os.Setenv(key, tt); err != nil {
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t.Fatalf("#%d: cannot set %s: %v", i, key, err)
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}
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if err := Unsetenv(key); err != nil {
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t.Errorf("#%d: unsetenv %s error: %v", i, key, err)
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}
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if g := os.Environ(); !reflect.DeepEqual(g, env) {
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t.Errorf("#%d: env = %+v, want %+v", i, g, env)
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}
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}
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}
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func waitSig(t *testing.T, c <-chan os.Signal, sig os.Signal) {
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select {
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case s := <-c:
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if s != sig {
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t.Fatalf("signal was %v, want %v", s, sig)
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}
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case <-time.After(1 * time.Second):
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t.Fatalf("timeout waiting for %v", sig)
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}
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}
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func TestHandleInterrupts(t *testing.T) {
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for _, sig := range []syscall.Signal{syscall.SIGINT, syscall.SIGTERM} {
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n := 1
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RegisterInterruptHandler(func() { n++ })
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RegisterInterruptHandler(func() { n *= 2 })
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c := make(chan os.Signal, 2)
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signal.Notify(c, sig)
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HandleInterrupts()
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syscall.Kill(syscall.Getpid(), sig)
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// we should receive the signal once from our own kill and
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// a second time from HandleInterrupts
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waitSig(t, c, sig)
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waitSig(t, c, sig)
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if n == 3 {
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t.Fatalf("interrupt handlers were called in wrong order")
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}
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if n != 4 {
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t.Fatalf("interrupt handlers were not called properly")
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}
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// reset interrupt handlers
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interruptHandlers = interruptHandlers[:0]
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interruptExitMu.Unlock()
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}
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}
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