1# Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. 2# 3# SPDX-License-Identifier: GPL-2.0 4 5import pytest 6import time 7 8def test_sleep(u_boot_console): 9 """Test the sleep command, and validate that it sleeps for approximately 10 the correct amount of time.""" 11 12 # 3s isn't too long, but is enough to cross a few second boundaries. 13 sleep_time = 3 14 tstart = time.time() 15 u_boot_console.run_command('sleep %d' % sleep_time) 16 tend = time.time() 17 elapsed = tend - tstart 18 assert elapsed >= sleep_time 19 if not u_boot_console.config.gdbserver: 20 # 0.25s margin is hopefully enough to account for any system overhead. 21 assert elapsed < (sleep_time + 0.25) 22