//go:build linux

package instancectl

import (
	"os"
	"strconv"
	"testing"
)

func TestProcStartReadsStableIdentity(t *testing.T) {
	pid := os.Getpid()
	a, err := procStart(pid)
	if err != nil {
		t.Fatal(err)
	}
	b, err := procStart(pid)
	if err != nil || a == "" || a != b {
		t.Fatalf("start %q %q %v", a, b, err)
	}
	if _, err := strconv.ParseUint(a, 10, 64); err != nil {
		t.Fatal(err)
	}
}

func TestProcStartRefusesMissingProcess(t *testing.T) {
	if _, err := procStart(1 << 30); err == nil {
		t.Fatal("missing pid accepted")
	}
}