PhysVLM / other_transfer /tests /test_dynamic_sampling.py
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from __future__ import annotations
import sys
import unittest
from pathlib import Path
ROOT = Path(__file__).resolve().parents[1]
sys.path.insert(0, str(ROOT / "src"))
from physics_model.dynamic_sampling import (
ALL_MAX,
OUTCOME_VARIATION,
PROCESS_ONLY,
SILENT,
apply_dynamic_sampling,
classify_group,
)
from physics_sft.grpo_reward import RewardConfig
class DynamicSamplingTests(unittest.TestCase):
def test_process_only_variation_is_kept(self) -> None:
totals = [1.10, 1.25, 1.10, 1.10]
outcomes = [1.00, 1.00, 1.00, 1.00]
processes = [0.10, 0.25, 0.10, 0.10]
label = classify_group(
totals,
outcome_rewards=outcomes,
process_rewards=processes,
max_total=1.75,
use_process=True,
)
self.assertEqual(label, PROCESS_ONLY)
result = apply_dynamic_sampling(
[totals],
outcome_groups=[outcomes],
process_groups=[processes],
max_total=1.75,
use_process=True,
)
self.assertEqual(result.keep_indices, [0])
self.assertEqual(result.labels[0], PROCESS_ONLY)
self.assertFalse(result.resample)
def test_all_equal_total_is_filtered(self) -> None:
totals = [0.25, 0.25, 0.25, 0.25]
result = apply_dynamic_sampling(
[totals],
outcome_groups=[totals],
process_groups=[[0, 0, 0, 0]],
max_total=1.75,
use_process=True,
resample_cap=3,
)
self.assertEqual(result.labels[0], SILENT)
self.assertEqual(result.keep_indices, [])
self.assertTrue(result.resample)
def test_all_max_uses_configured_maximum(self) -> None:
cfg = RewardConfig(use_cot_process_reward=True)
totals = [cfg.max_total_reward] * 4
label = classify_group(totals, max_total=cfg.max_total_reward, use_process=True)
self.assertEqual(label, ALL_MAX)
other = classify_group(totals, max_total=9.99, use_process=True)
self.assertEqual(other, SILENT)
def test_disable_process_uses_outcome_only(self) -> None:
totals = [1.10, 1.25, 1.10, 1.10]
outcomes = [1.00, 1.00, 1.00, 1.00]
processes = [0.10, 0.25, 0.10, 0.10]
result = apply_dynamic_sampling(
[totals],
outcome_groups=[outcomes],
process_groups=[processes],
max_total=1.25,
use_process=False,
)
self.assertEqual(result.labels[0], SILENT)
self.assertEqual(result.keep_indices, [])
mixed_outcome = apply_dynamic_sampling(
[[1.0, 1.25, 1.0, 1.0]],
outcome_groups=[[1.0, 1.25, 1.0, 1.0]],
process_groups=[[0, 0, 0, 0]],
max_total=1.25,
use_process=False,
)
self.assertEqual(mixed_outcome.labels[0], OUTCOME_VARIATION)
self.assertEqual(mixed_outcome.keep_indices, [0])
def test_resample_cap_exhausts(self) -> None:
silent = [[0.0, 0.0, 0.0, 0.0]]
mid = apply_dynamic_sampling(silent, max_total=1.25, resample_attempt=1, resample_cap=3)
self.assertTrue(mid.resample)
self.assertFalse(mid.cap_exhausted)
done = apply_dynamic_sampling(silent, max_total=1.25, resample_attempt=3, resample_cap=3)
self.assertFalse(done.resample)
self.assertTrue(done.cap_exhausted)
self.assertEqual(done.keep_indices, [])
def test_short_batch_does_not_raise(self) -> None:
short = [[0.2, 0.8]]
result = apply_dynamic_sampling(short, max_total=1.25, use_process=False)
self.assertEqual(result.keep_indices, [0])
leftover = apply_dynamic_sampling([[0.1]], max_total=1.25)
self.assertEqual(leftover.labels[0], SILENT)
if __name__ == "__main__":
unittest.main()