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import time
from unittest import TestCase
from moderngl_window.timers import clock
class TimerTestCase(TestCase):
def test_clock_timer(self):
"""Quick and dirty clock timer test"""
timer = clock.Timer()
timer.start()
time.sleep(0.1)
self.assertFalse(timer.is_paused)
self.assertTrue(timer.time > 0)
timer.pause()
self.assertTrue(timer.is_paused)
timer.toggle_pause()
self.assertFalse(timer.is_paused)
self.assertTrue(timer.is_running)
timer.time = 10.0
timer.next_frame()
pos, duration = timer.stop()
self.assertTrue(pos >= 10)
self.assertTrue(duration >= 0)
def test_not_started(self) -> None:
"""Make sure the timer return 0 when it is never started"""
timer = clock.Timer()
t, real_t = timer.stop()
self.assertTrue(t == 0)
self.assertTrue(real_t == 0)
def test_zero_delta(self) -> None:
"""Test that timer handles zero delta gracefully"""
timer = clock.Timer()
timer.start()
# Force a zero delta by setting the same time twice
timer.time = 1.0
timer.next_frame()
timer.time = 1.0
timer.next_frame()
# FPS should be 0 when delta is 0 to avoid division by zero
self.assertEqual(timer.fps, 0)
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