trav
407c5669c5
TapTempo kept a rolling window of 8 taps, so a long tapping session chased the most recent taps instead of converging on the overall tempo (trav noticed the estimate never settled). Every tap since the session started now counts; a >2.5s gap still begins a fresh session. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
59 lines
1.4 KiB
Python
59 lines
1.4 KiB
Python
from lintunes.tap_tempo import TapTempo
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def test_steady_taps_120_bpm():
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tempo = TapTempo()
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bpm = None
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for i in range(5):
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bpm = tempo.tap(10.0 + i * 0.5) # 0.5s intervals = 120 bpm
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assert bpm == 120
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def test_first_tap_gives_no_bpm():
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tempo = TapTempo()
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assert tempo.tap(1.0) is None
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assert tempo.tap_count == 1
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def test_long_gap_resets_series():
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tempo = TapTempo()
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tempo.tap(0.0)
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tempo.tap(0.5)
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assert tempo.bpm() == 120
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# 5 seconds later: new series, old taps discarded
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assert tempo.tap(5.5) is None
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assert tempo.tap_count == 1
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assert tempo.tap(6.1) == 100 # 0.6s interval
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def test_long_session_converges_exactly():
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tempo = TapTempo()
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bpm = None
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for i in range(30):
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bpm = tempo.tap(i * 0.5) # 30 steady taps at 120 bpm
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assert bpm == 120
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def test_whole_session_is_averaged():
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tempo = TapTempo()
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# One sloppy 1.0s interval up front, then 20 taps at 0.5s. All 21 taps
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# count (no rolling window), so the estimate is the overall average
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# 10.5s / 20 intervals = 0.525s -> 114 bpm, not the recent-taps 120.
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tempo.tap(0.0)
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t = 1.0
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bpm = None
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for _ in range(20):
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bpm = tempo.tap(t)
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t += 0.5
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assert tempo.tap_count == 21
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assert bpm == 114
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def test_reset():
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tempo = TapTempo()
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tempo.tap(0.0)
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tempo.tap(0.5)
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tempo.reset()
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assert tempo.bpm() is None
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assert tempo.tap_count == 0
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