| // Copyright 2009 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // +build darwin freebsd linux netbsd openbsd |
| |
| package signal |
| |
| import ( |
| "os" |
| "syscall" |
| "testing" |
| "time" |
| ) |
| |
| const sighup = syscall.SIGHUP |
| |
| 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 TestSignal(t *testing.T) { |
| // Ask for SIGHUP |
| c := make(chan os.Signal, 1) |
| Notify(c, sighup) |
| |
| t.Logf("sighup...") |
| // Send this process a SIGHUP |
| syscall.Kill(syscall.Getpid(), sighup) |
| waitSig(t, c, sighup) |
| |
| // Ask for everything we can get. |
| c1 := make(chan os.Signal, 1) |
| Notify(c1) |
| |
| t.Logf("sigwinch...") |
| // Send this process a SIGWINCH |
| syscall.Kill(syscall.Getpid(), syscall.SIGWINCH) |
| waitSig(t, c1, syscall.SIGWINCH) |
| |
| // Send two more SIGHUPs, to make sure that |
| // they get delivered on c1 and that not reading |
| // from c does not block everything. |
| t.Logf("sigwinch...") |
| syscall.Kill(syscall.Getpid(), syscall.SIGHUP) |
| waitSig(t, c1, syscall.SIGHUP) |
| t.Logf("sigwinch...") |
| syscall.Kill(syscall.Getpid(), syscall.SIGHUP) |
| waitSig(t, c1, syscall.SIGHUP) |
| |
| // The first SIGHUP should be waiting for us on c. |
| waitSig(t, c, syscall.SIGHUP) |
| } |