expect_successful_update_of_a_single_plugin

#!/usr/bin/env expect

# disables script output
log_user 0

spawn tmux

# Waiting for tmux to attach. If this is not done, next command, `send` will
# not work properly.
sleep 1

# this is tmux prefix + U
send "U"

set timeout 15

expect_after {
  timeout { exit 1 }
}

expect {
  "Installed plugins"
}

expect {
  "tmux-example-plugin"
}

expect {
  "\"all\" - updates all plugins"
}

expect {
  "ENTER - cancels"
}

# wait for tmux to display prompt before sending characters
sleep 1
send "tmux-example-plugin\r"

expect {
  "Updating \"tmux-example-plugin\""
}

expect {
  "\"tmux-example-plugin\" update success"
}

expect {
  "Done, press ENTER to continue." {
    exit 0
  }
}

exit 1