Ocassional 02_sleep_system test fail

[lemrouch]

I got failure of 02_sleep_system test sometimes:

#   Failed test 'Daemon not running.'
#   at t/02_sleep_system.t line 38.
#                   'My Daemon                                                     [Running]'
#     doesn't match '(?^:\[Not Running\])'
#   Failed test 'Exit Status = 3'
#   at t/02_sleep_system.t line 39.
# Looks like you failed 2 tests of 18.
t/02_sleep_system.t ............... 
Dubious, test returned 2 (wstat 512, 0x200)

From what I can see in code
t/bin/02_sleep_system.pl is supposed to sleep for 10 seconds and die and
t/02_sleep_system.t starts the process, sleeps for 10 seconds as well and checks if the process died already.
This looks like a pure race to me and is likely to fail on system under load.
If I'm right there should be longer sleep in test, should be not?