| package process |
| |
| import ( |
| "fmt" |
| "os" |
| "os/exec" |
| "runtime" |
| "testing" |
| ) |
| |
| func TestAlive(t *testing.T) { |
| for _, pid := range []int{0, -1, -123} { |
| t.Run(fmt.Sprintf("invalid process (%d)", pid), func(t *testing.T) { |
| if Alive(pid) { |
| t.Errorf("PID %d should not be alive", pid) |
| } |
| }) |
| } |
| t.Run("current process", func(t *testing.T) { |
| if pid := os.Getpid(); !Alive(pid) { |
| t.Errorf("current PID (%d) should be alive", pid) |
| } |
| }) |
| t.Run("exited process", func(t *testing.T) { |
| if runtime.GOOS == "windows" { |
| t.Skip("TODO: make this work on Windows") |
| } |
| |
| // Get a PID of an exited process. |
| cmd := exec.Command("echo", "hello world") |
| err := cmd.Run() |
| if err != nil { |
| t.Fatal(err) |
| } |
| exitedPID := cmd.ProcessState.Pid() |
| if Alive(exitedPID) { |
| t.Errorf("PID %d should not be alive", exitedPID) |
| } |
| }) |
| } |