#!/bin/sh

# Check for regressions on https://github.com/tmux/tmux/issues/2022,
# where a utmp entry would not be created for new tmux sessions

set -e

SESSION="test_session"

if who | grep -q tmux; then
    echo >&2 "tmux should not have registered utmp entries yet"
    exit 1
fi

tmux new-session -d -s $SESSION

# make sure a utmp entry was created
if ! who | grep -q tmux; then
  # clean up
  tmux kill-session -t $SESSION
  echo >&2 "no utmp entries found for tmux"
  exit 1
fi

tmux kill-session -t $SESSION
if who | grep -q tmux; then
    echo >&2 "tmux should have unregistered utmp entries"
    exit 1
fi