treasurehunting2/PySDL2-0.9.5/sdl2/test/timer_test.py
2017-05-13 11:00:53 +02:00

92 lines
3 KiB
Python

import sys
import time
import unittest
from .. import SDL_Init, SDL_Quit, SDL_QuitSubSystem, SDL_INIT_TIMER
from .. import timer
if sys.version_info[0] >= 3:
long = int
calls = []
class SDLTimerTest(unittest.TestCase):
__tags__ = ["sdl"]
def setUp(self):
SDL_Init(SDL_INIT_TIMER)
def tearDown(self):
SDL_QuitSubSystem(SDL_INIT_TIMER)
SDL_Quit()
def test_SDL_GetTicks(self):
ticks = timer.SDL_GetTicks()
time.sleep(1)
ticks2 = timer.SDL_GetTicks()
time.sleep(1)
ticks3 = timer.SDL_GetTicks()
self.assertGreater(ticks3, ticks2)
self.assertGreater(ticks2, ticks)
# Add some latency, since the final numbers can heavily depend
# on the system's context switching behaviour, load, etc., etc.,
# etc.
# self.assertTrue(abs(ticks2 - 1000 - ticks) <= 3,
# "1: %f is not <= 3 for %f and %f" % (abs(ticks2 - 1000 - ticks),
# ticks2, ticks))
# self.assertTrue(abs(ticks3 - 1000 - ticks2) <= 3,
# "2: %f is not <= 3 for %f and %f" % (abs(ticks3 - 1000 - ticks2),
# ticks3, ticks2))
# self.assertTrue(abs(ticks3 - 2000 - ticks) <= 3,
# "3: %f is not <= 3 for %f and %f" % (abs(ticks3 - 2000 - ticks2),
# ticks3, ticks))
def test_SDL_GetPerformanceCounter(self):
perf = timer.SDL_GetPerformanceCounter()
self.assertTrue(type(perf) in (int, long))
def test_SDL_GetPerformanceFrequency(self):
freq = timer.SDL_GetPerformanceFrequency()
self.assertTrue(type(freq) in (int, long))
@unittest.skip("precision problems")
def test_SDL_Delay(self):
for wait in range(5, 200, 5):
start = time.time() * 1000
timer.SDL_Delay(wait)
end = time.time() * 1000
sm = (end - start)
self.assertTrue(abs(wait - sm) <= 3,
"%f is not <= 3 for %f and %f" % (abs(wait - sm), wait, sm))
@unittest.skipIf(hasattr(sys, "pypy_version_info"),
"PyPy can't access other variables properly from a separate thread")
def test_SDL_AddRemoveTimer(self):
calls = []
def timerfunc(interval, param):
calls.append(param)
return interval
callback = timer.SDL_TimerCallback(timerfunc)
timerid = timer.SDL_AddTimer(100, callback, "Test")
start = timer.SDL_GetTicks()
end = long(start)
while (end - start) < 1100:
# One second wait
end = timer.SDL_GetTicks()
# check for <=11, since it can happen that a last call is still
# executing
self.assertLessEqual(len(calls), 11)
timer.SDL_RemoveTimer(timerid)
self.assertLessEqual(len(calls), 11)
timer.SDL_RemoveTimer(timerid)
# Wait a bit, so the last executing handlers can finish
timer.SDL_Delay(10)
if __name__ == '__main__':
sys.exit(unittest.main())