31 lines
973 B
Python
31 lines
973 B
Python
import pytest
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from src.fps_counter import FPSCounter
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def test_initial_and_tick_and_average(monkeypatch: pytest.MonkeyPatch) -> None:
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times = iter([1.0, 1.5, 1.75])
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monkeypatch.setattr("src.fps_counter.time.perf_counter", lambda: next(times))
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counter = FPSCounter(2)
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assert counter.current_fps == counter.average_fps == 0.0
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assert counter.tick() == 0.0
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assert counter.tick() == pytest.approx(2.0)
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assert counter.tick() == pytest.approx(4.0)
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assert counter.average_fps == pytest.approx(3.0)
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def test_reset(monkeypatch: pytest.MonkeyPatch) -> None:
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times = iter([1.0, 2.0])
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monkeypatch.setattr("src.fps_counter.time.perf_counter", lambda: next(times))
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counter = FPSCounter(3)
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counter.tick()
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counter.tick()
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counter.reset()
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assert counter.current_fps == counter.average_fps == 0.0
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assert counter.sample_count == 0
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def test_invalid_window() -> None:
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with pytest.raises(ValueError):
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FPSCounter(0)
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