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package main
import (
"io/ioutil"
"os"
"os/exec"
"strconv"
"testing"
"github.com/stretchr/testify/require"
"gitlab.com/gitlab-org/gitaly/internal/bootstrap"
)
// TestStolenPid tests for regressions in https://gitlab.com/gitlab-org/gitaly/issues/1661
func TestStolenPid(t *testing.T) {
defer func(oldValue string) {
os.Setenv(bootstrap.EnvPidFile, oldValue)
}(os.Getenv(bootstrap.EnvPidFile))
pidFile, err := ioutil.TempFile("", "pidfile")
require.NoError(t, err)
defer os.Remove(pidFile.Name())
os.Setenv(bootstrap.EnvPidFile, pidFile.Name())
cmd := exec.Command("tail", "-f")
require.NoError(t, cmd.Start())
defer cmd.Process.Kill()
_, err = pidFile.WriteString(strconv.Itoa(cmd.Process.Pid))
require.NoError(t, err)
require.NoError(t, pidFile.Close())
tail, err := findGitaly()
require.NoError(t, err)
require.NotNil(t, tail)
require.Equal(t, cmd.Process.Pid, tail.Pid)
t.Run("stolen", func(t *testing.T) {
require.False(t, isGitaly(tail, "/path/to/gitaly"))
})
t.Run("not stolen", func(t *testing.T) {
require.True(t, isGitaly(tail, "/path/to/tail"))
})
}
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