anti
f2b3393669
Replaces LICENSE (GPLv3 -> AGPLv3) and prepends `SPDX-License-Identifier: AGPL-3.0-or-later` to every source file across decnet/, decnet_web/, tests/, scripts/, and tools/. Rationale: closes the GPLv3 ASP loophole so any party operating a modified DECNET as a network service must offer their modified source. Personal copyright (Samuel Paschuan) + inbound=outbound contributions make a future unilateral relicense infeasible. - LICENSE: full AGPL-3.0 text (gnu.org/licenses/agpl-3.0.txt) - COPYRIGHT: project copyright notice - tools/add_spdx_headers.py: idempotent header injector (shebang- and PEP 263-aware) Touches 1565 source files (.py, .ts, .tsx, .js, .jsx, .css, .sh). No behavior change; comments only.
87 lines
3.1 KiB
Python
87 lines
3.1 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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"""Step B.1: ``motor.keystroke_cadence``."""
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from __future__ import annotations
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import random
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from decnet.profiler.behave_shell import extract_session
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from decnet.profiler.behave_shell._parse import AsciinemaEvent
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def _of(observations: list, primitive: str):
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obs = [o for o in observations if o.primitive == primitive]
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assert len(obs) == 1, f"expected exactly one {primitive}, got {len(obs)}"
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return obs[0]
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def _typed_events(iats: list[float], terminator: bool = True) -> list[AsciinemaEvent]:
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"""Build a typed input stream where consecutive single-char events are
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separated by ``iats``."""
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events: list[AsciinemaEvent] = []
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t = 0.0
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events.append((t, "i", "a"))
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for x in iats:
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t += x
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events.append((t, "i", "b"))
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if terminator:
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events.append((t + 0.1, "i", "\r"))
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return events
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def test_too_few_inputs_no_emission() -> None:
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out = list(extract_session(_typed_events([0.1, 0.1]), sid="cad-low"))
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assert [o for o in out if o.primitive == "motor.keystroke_cadence"] == []
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def test_huge_think_pauses_yield_no_typing_bursts() -> None:
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# Two events 5s apart → no IAT under IKI_THINK_MAX_S, and only 1
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# IAT total — below the 3-IAT-per-burst minimum. No burst, no emit.
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events: list[AsciinemaEvent] = [
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(0.0, "i", "a"),
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(5.0, "i", "b"),
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(10.0, "i", "c"),
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(15.0, "i", "d"),
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(20.0, "i", "e"),
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]
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out = list(extract_session(events, sid="cad-no-bursts"))
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assert [o for o in out if o.primitive == "motor.keystroke_cadence"] == []
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def test_uniform_iats_emit_steady() -> None:
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iats = [0.15] * 12
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out = list(extract_session(_typed_events(iats), sid="cad-steady"))
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obs = _of(out, "motor.keystroke_cadence")
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assert obs.value == "steady"
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assert obs.confidence == 0.70
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def test_machine_iats_emit_machine() -> None:
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# Sub-5ms IATs with near-zero CV — no terminator IAT to inflate the
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# variance away from machine
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iats = [0.002] * 20
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out = list(extract_session(_typed_events(iats, terminator=False), sid="cad-machine"))
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obs = _of(out, "motor.keystroke_cadence")
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assert obs.value == "machine"
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assert obs.confidence == 0.85
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def test_bursty_iats_emit_bursty() -> None:
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# Mean ~0.15 with moderate variance, CV between 0.5 and 1.5
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rng = random.Random(42)
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iats = []
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for _ in range(20):
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# Mostly fast, occasionally slow → CV in the bursty band
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iats.append(rng.choice([0.05, 0.05, 0.05, 0.30, 0.50]))
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out = list(extract_session(_typed_events(iats), sid="cad-bursty"))
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obs = _of(out, "motor.keystroke_cadence")
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assert obs.value == "bursty"
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def test_hunt_and_peck_iats_emit_hunt_and_peck() -> None:
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# CV >= 1.5: extreme bimodal (very-fast + very-slow within burst).
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# Most IATs are tiny; a few are ~10x the mean — drives stdev/mean above 1.5.
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iats = [0.01] * 15 + [1.4] * 5
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out = list(extract_session(_typed_events(iats, terminator=False), sid="cad-hp"))
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obs = _of(out, "motor.keystroke_cadence")
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assert obs.value == "hunt_and_peck"
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