mirror of https://github.com/golang/go.git
79 lines
2.0 KiB
Go
79 lines
2.0 KiB
Go
// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build unix
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package os_test
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import (
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"errors"
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"internal/testenv"
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"math"
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. "os"
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"runtime"
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"syscall"
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"testing"
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)
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func TestErrProcessDone(t *testing.T) {
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testenv.MustHaveGoBuild(t)
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t.Parallel()
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p, err := StartProcess(testenv.GoToolPath(t), []string{"go"}, &ProcAttr{})
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if err != nil {
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t.Fatalf("starting test process: %v", err)
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}
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p.Wait()
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if got := p.Signal(Kill); got != ErrProcessDone {
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t.Errorf("got %v want %v", got, ErrProcessDone)
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}
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}
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// Lookup of a process that does not exist at time of lookup.
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func TestProcessAlreadyDone(t *testing.T) {
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// Theoretically MaxInt32 is a valid PID, but the chance of it actually
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// being used is extremely unlikely.
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pid := math.MaxInt32
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if runtime.GOOS == "solaris" || runtime.GOOS == "illumos" {
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// Solaris/Illumos have a lower limit, above which wait returns
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// EINVAL (see waitid in usr/src/uts/common/os/exit.c in
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// illumos). This is configurable via sysconf(_SC_MAXPID), but
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// we'll just take the default.
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pid = 30000-1
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}
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p, err := FindProcess(pid)
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if err != nil {
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t.Fatalf("FindProcess(math.MaxInt32) got err %v, want nil", err)
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}
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if ps, err := p.Wait(); !errors.Is(err, syscall.ECHILD) {
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t.Errorf("Wait() got err %v (ps %+v), want %v", err, ps, syscall.ECHILD)
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}
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if err := p.Release(); err != nil {
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t.Errorf("Release() got err %v, want nil", err)
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}
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}
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func TestUNIXProcessAlive(t *testing.T) {
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testenv.MustHaveGoBuild(t)
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t.Parallel()
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p, err := StartProcess(testenv.GoToolPath(t), []string{"sleep", "1"}, &ProcAttr{})
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if err != nil {
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t.Skipf("starting test process: %v", err)
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}
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defer p.Kill()
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proc, err := FindProcess(p.Pid)
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if err != nil {
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t.Errorf("OS reported error for running process: %v", err)
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}
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err = proc.Signal(syscall.Signal(0))
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if err != nil {
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t.Errorf("OS reported error for running process: %v", err)
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}
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}
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