1 # SPDX-License-Identifier: GPL-2.0
2 # Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
8 Note: This test doesn't rely on boardenv_* configuration values but they can
11 # Setup env__sleep_accurate to False if time is not accurate on your platform
12 env__sleep_accurate = False
14 # Setup env__sleep_time time in seconds board is set to sleep
17 # Setup env__sleep_margin set a margin for any system overhead
18 env__sleep_margin = 0.25
22 def test_sleep(u_boot_console):
23 """Test the sleep command, and validate that it sleeps for approximately
24 the correct amount of time."""
26 sleep_skip = u_boot_console.config.env.get('env__sleep_accurate', True)
28 pytest.skip('sleep is not accurate')
30 if u_boot_console.config.buildconfig.get('config_cmd_sleep', 'n') != 'y':
31 pytest.skip('sleep command not supported')
33 # 3s isn't too long, but is enough to cross a few second boundaries.
34 sleep_time = u_boot_console.config.env.get('env__sleep_time', 3)
35 sleep_margin = u_boot_console.config.env.get('env__sleep_margin', 0.25)
37 u_boot_console.run_command('sleep %d' % sleep_time)
39 elapsed = tend - tstart
40 assert elapsed >= (sleep_time - 0.01)
41 if not u_boot_console.config.gdbserver:
42 # margin is hopefully enough to account for any system overhead.
43 assert elapsed < (sleep_time + sleep_margin)
45 @pytest.mark.buildconfigspec("cmd_time")
46 def test_time(u_boot_console):
47 """Test the time command, and validate that it gives approximately the
48 correct amount of command execution time."""
50 sleep_skip = u_boot_console.config.env.get("env__sleep_accurate", True)
52 pytest.skip("sleep is not accurate")
54 sleep_time = u_boot_console.config.env.get("env__sleep_time", 10)
55 sleep_margin = u_boot_console.config.env.get("env__sleep_margin", 0.25)
56 output = u_boot_console.run_command("time sleep %d" % sleep_time)
57 execute_time = float(output.split()[1])
58 assert sleep_time >= (execute_time - 0.01)
59 if not u_boot_console.config.gdbserver:
60 # margin is hopefully enough to account for any system overhead.
61 assert sleep_time < (execute_time + sleep_margin)