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TradeBot/tests/test_calibrate_thresholds.py
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Python

from __future__ import annotations
from types import SimpleNamespace
from tools.calibrate_torch_thresholds import (
CalibrationResult,
ForecastRecord,
_average_selected_predictions,
_apply_platt_calibration,
_build_torch_model,
_calibration_horizon,
_calibration_symbols,
_choose_recommendation,
_full_backtest,
_fit_platt_calibration,
_record_event_target,
_entry_validation_skill,
)
from tools.train_torch_recurrent_forecaster import (
OUTPUT_LAYOUT,
RecurrentReturnModel,
_ensemble_candidate,
_export_head_state,
_export_recurrent_state,
)
def _result(*, trades: int, average: float, total: float, profit_factor: float) -> CalibrationResult:
return CalibrationResult(
edge=0.05,
probability=0.52,
confidence=0.4,
trades=trades,
wins=max(0, trades // 2),
win_rate=0.5,
total_net_percent=total,
average_net_percent=average,
max_drawdown_percent=1.0,
profit_factor=profit_factor,
score=1.0,
)
def _record(index: int, probability: float, future: float) -> ForecastRecord:
return ForecastRecord(
symbol="BTCUSDT",
index=index,
timestamp=index,
close=100.0,
high=101.0,
low=99.0,
next_open=100.0,
next_timestamp=index + 1,
atr=1.0,
expected_percent=0.1,
probability_up=probability,
confidence=0.5,
skill=0.1,
q50_percent=0.1,
block_entry=False,
future_net_percent=future,
benchmark_entry=False,
benchmark_exit=False,
)
def test_calibration_symbols_follow_explicit_configured_artifact_precedence() -> None:
artifact = {"symbols": {"btcusdt": {}, "ethusdt": {}}}
assert _calibration_symbols("solusdt, xrpusdt", ("ADAUSDT",), artifact) == [
"SOLUSDT",
"XRPUSDT",
]
assert _calibration_symbols("", ("ADAUSDT",), artifact) == ["ADAUSDT"]
assert _calibration_symbols("", (), artifact) == ["BTCUSDT", "ETHUSDT"]
def test_calibration_symbols_reject_malformed_artifact_symbols() -> None:
assert _calibration_symbols("", (), {"symbols": []}) == []
def test_explicit_calibration_horizon_selects_existing_multi_horizon_output() -> None:
entry = {"target_horizon": 12, "target_horizons": [3, 6, 12, 24]}
assert _calibration_horizon(entry, 24, explicit=True) == 24
assert _calibration_horizon(entry, 20, explicit=True) == 24
assert _calibration_horizon(entry, 24, explicit=False) == 12
def test_calibration_does_not_fallback_to_too_few_trades() -> None:
selected = _choose_recommendation(
[_result(trades=1, average=2.0, total=2.0, profit_factor=999.0)],
min_trades=30,
)
assert selected is None
def test_calibration_selects_only_viable_result() -> None:
viable = _result(trades=30, average=0.2, total=6.0, profit_factor=1.4)
assert _choose_recommendation([viable], min_trades=30) is viable
def test_platt_calibration_learns_probability_direction_from_train_records() -> None:
records = [
_record(index, 0.8 if index % 2 else 0.2, -1.0 if index % 2 else 1.0)
for index in range(100)
]
calibration = _fit_platt_calibration(records)
calibrated = _apply_platt_calibration(
[_record(101, 0.8, -1.0), _record(102, 0.2, 1.0)],
calibration,
)
assert calibration["slope"] < 0
assert calibrated[0].probability_up < calibrated[1].probability_up
def test_barrier_event_target_takes_precedence_over_terminal_profit() -> None:
record = _record(1, 0.8, 3.0)
record.take_profit_first = False
assert _record_event_target(record) == 0.0
def test_entry_quality_never_falls_back_to_holdout_skill() -> None:
entry = {"validation_skill": 0.12, "skill": 0.99, "holdout_skill": 0.99}
assert _entry_validation_skill(entry) == 0.12
assert _entry_validation_skill({"skill": 0.99, "holdout_skill": 0.99}) == 0.0
def test_batched_ensemble_averages_decoded_predictions() -> None:
averaged = _average_selected_predictions(
[
{"expected_return": 0.01, "q50": 0.02, "probability_up": 0.6},
{"expected_return": 0.03, "q50": 0.04, "probability_up": 0.8},
]
)
assert averaged == {
"expected_return": 0.02,
"q50": 0.03,
"probability_up": 0.7,
}
def test_calibrator_loads_multitask_head() -> None:
model = RecurrentReturnModel(
architecture="gru",
input_size=2,
hidden_size=4,
num_layers=1,
dropout=0.0,
output_size=len(OUTPUT_LAYOUT),
attention_pooling=False,
context_norm=False,
multitask_head=True,
head_hidden_size=6,
)
entry = {
"input_size": 2,
"hidden_size": 4,
"num_layers": 1,
"output_size": len(OUTPUT_LAYOUT),
"multitask_head": True,
"head_hidden_size": 6,
"state_dict": _export_recurrent_state(model),
**_export_head_state(model),
}
loaded = _build_torch_model(entry, "torch_gru")
assert loaded is not None
assert loaded.multitask_head is True
def test_multi_seed_export_does_not_duplicate_first_member_weights() -> None:
members = [
{
"validation_mae": 0.1,
"state_dict": {"weight": [seed]},
"head_weight": [[seed]],
"head_bias": [seed],
}
for seed in (7, 19)
]
exported = _ensemble_candidate(members, [7, 19])
assert exported["ensemble_size"] == 2
assert exported["ensemble_seeds"] == [7, 19]
assert len(exported["ensemble_members"]) == 2
assert "state_dict" not in exported
assert "head_weight" not in exported
def test_single_seed_export_keeps_only_top_level_weights() -> None:
exported = _ensemble_candidate(
[
{
"validation_mae": 0.1,
"state_dict": {"weight": [7]},
"head_weight": [[7]],
"head_bias": [7],
}
],
[7],
)
assert exported["ensemble_size"] == 1
assert exported["state_dict"] == {"weight": [7]}
assert "ensemble_members" not in exported
def test_full_backtest_never_uses_global_threshold_for_ineligible_symbol() -> None:
btc = [_record(index, 0.8, 1.0) for index in range(3)]
eth = [_record(index, 0.8, 1.0) for index in range(3)]
for record in eth:
record.symbol = "ETHUSDT"
thresholds = _result(trades=3, average=1.0, total=3.0, profit_factor=999.0)
replay = _full_backtest(
btc + eth,
thresholds,
horizon=3,
round_trip_cost=0.0,
settings=SimpleNamespace(
stop_loss_percent=0.04,
take_profit_percent=0.035,
stop_loss_exit_enabled=True,
atr_trailing_multiplier=2.2,
),
symbol_thresholds={"BTCUSDT": thresholds},
require_symbol_thresholds=True,
)
assert {row["symbol"] for row in replay["symbol_breakdown"]} == {"BTCUSDT"}