memaudit-code / test_oraclemem.py
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"""Stdlib tests for the OracleMem exact-small MVP."""
from __future__ import annotations
import json
import tempfile
import unittest
from pathlib import Path
from oraclemem import evaluate
class OracleMemEvaluationTests(unittest.TestCase):
def test_exact_solver_matches_bruteforce(self) -> None:
instance = evaluate.generate_synthetic_instance(11, normal_count=2, update_count=1)
for budget in (3, 5, 8):
exact = evaluate.exact_solve(instance, budget)
brute = evaluate.brute_force_solve(instance, budget)
self.assertAlmostEqual(exact.objective_value, brute.objective_value, places=9)
self.assertTrue(
evaluate.is_feasible(instance.candidates, exact.selected_candidate_ids, budget)
)
def test_budget_and_group_feasibility_for_all_methods(self) -> None:
instance = evaluate.generate_synthetic_instance(3, normal_count=2, update_count=1)
rows = evaluate.evaluate_instance(instance, budgets=(3, 5, 7))
self.assertGreater(len(rows), 0)
for row in rows:
self.assertTrue(row.budget_feasible, row.to_json())
self.assertTrue(row.group_feasible, row.to_json())
self.assertLessEqual(row.selected_cost, row.budget)
def test_ratio_labels_are_exact_and_not_reference_denominators(self) -> None:
instance = evaluate.generate_synthetic_instance(5, normal_count=2, update_count=1)
rows = evaluate.evaluate_instance(
instance, budgets=(4,), methods=("opt", "oracle_gvt", "greedy")
)
for row in rows:
self.assertEqual(row.denominator_label, "exact_opt")
self.assertEqual(row.upper_bound_source, "exact_opt")
self.assertIsNotNone(row.ratio_to_opt)
self.assertIsNotNone(row.ratio_to_upper_bound)
self.assertLessEqual(row.ratio_to_opt or 0.0, 1.0 + 1e-9)
if row.method == "opt":
self.assertAlmostEqual(row.ratio_to_opt or 0.0, 1.0)
summary = evaluate.aggregate_results(rows)
labels = summary["label_definitions"]
self.assertIn("exact optimum is certified", labels["ratio_to_opt"])
self.assertIn("never labeled as OPT", labels["ratio_to_reference"])
def test_tombstone_benefit_on_update_stream(self) -> None:
instance = evaluate.make_update_stress_instance()
rows = evaluate.evaluate_instance(
instance,
budgets=(3,),
methods=("oracle_gvt", "no_tombstone_gvt", "no_tombstone_opt", "fact_only"),
)
by_method = {row.method: row for row in rows}
aware = by_method["oracle_gvt"]
no_tombstone = by_method["no_tombstone_gvt"]
no_tombstone_opt = by_method["no_tombstone_opt"]
fact_only = by_method["fact_only"]
self.assertGreater(aware.objective_value, no_tombstone.objective_value)
self.assertGreater(aware.objective_value, no_tombstone_opt.objective_value)
self.assertGreater(aware.objective_value, fact_only.objective_value)
self.assertEqual(aware.update_metrics["invalidation_units_covered"], 1.0)
self.assertEqual(no_tombstone.update_metrics["invalidation_units_covered"], 0.0)
self.assertEqual(no_tombstone_opt.update_metrics["invalidation_units_covered"], 0.0)
self.assertGreater(aware.update_metrics["selected_tombstone_like"], 0.0)
def test_estimated_methods_use_estimates_not_oracle_marginals(self) -> None:
instance = evaluate.OracleMemInstance(
"estimated_policy_fixture",
(
evaluate.CandidateMemory(
"oracle_best",
"exp0",
"atomic_fact",
"FACT hidden gold evidence",
1,
{"gold": 1.0},
estimated_value=0.1,
estimator_model="fixture",
),
evaluate.CandidateMemory(
"estimated_best",
"exp0",
"summary",
"SUMMARY visibly important but actually weak",
1,
{"gold": 0.0},
estimated_value=5.0,
estimator_model="fixture",
),
),
{"gold": 1.0},
current_units=("gold",),
)
rows = evaluate.evaluate_instance(
instance,
budgets=(1,),
methods=("oracle_gvt", "estimated_gvt", "estimated_utility"),
estimator_model=evaluate.DEFAULT_ESTIMATOR_MODEL,
estimator_profile="external",
)
by_method = {row.method: row for row in rows}
self.assertEqual(by_method["oracle_gvt"].selected_candidate_ids, ("oracle_best",))
self.assertEqual(by_method["estimated_gvt"].selected_candidate_ids, ("estimated_best",))
self.assertEqual(
by_method["estimated_utility"].selected_candidate_ids,
("estimated_best",),
)
self.assertLess(by_method["estimated_gvt"].objective_value, by_method["oracle_gvt"].objective_value)
self.assertEqual(
by_method["estimated_gvt"].policy_metadata["estimator_model"],
evaluate.DEFAULT_ESTIMATOR_MODEL,
)
self.assertFalse(by_method["estimated_gvt"].policy_metadata["api_called"])
def test_estimated_methods_run_on_stress_distribution(self) -> None:
rows = evaluate.run_synthetic_benchmark(
seeds=(0, 1),
budgets=(4,),
distributions=("scope_shift_v2",),
methods=("estimated_gvt", "estimated_utility"),
estimator_model=evaluate.DEFAULT_ESTIMATOR_MODEL,
)
self.assertEqual(len(rows), 4)
for row in rows:
self.assertTrue(row.budget_feasible, row.to_json())
self.assertTrue(row.group_feasible, row.to_json())
self.assertEqual(
row.policy_metadata["estimator_model"],
evaluate.DEFAULT_ESTIMATOR_MODEL,
)
self.assertEqual(row.policy_metadata["estimator_profile"], "gemini_flash_lite_v1")
def test_noisy_estimator_profile_is_local_and_supported(self) -> None:
rows = evaluate.run_synthetic_benchmark(
seeds=(0,),
budgets=(4,),
distributions=("scope_shift_v2",),
methods=("estimated_gvt", "estimated_utility"),
estimator_model=evaluate.DEFAULT_ESTIMATOR_MODEL,
estimator_profile=evaluate.NOISY_ESTIMATOR_PROFILE,
)
self.assertEqual(len(rows), 2)
for row in rows:
self.assertTrue(row.budget_feasible, row.to_json())
self.assertTrue(row.group_feasible, row.to_json())
self.assertEqual(row.policy_metadata["estimator_profile"], evaluate.NOISY_ESTIMATOR_PROFILE)
self.assertFalse(row.policy_metadata["api_called"])
def test_train_dev_estimator_uses_visible_features_not_dev_oracle(self) -> None:
train_instance = evaluate.OracleMemInstance(
"learned_train_fixture",
(
evaluate.CandidateMemory(
"train_update_good",
"train_update",
"compound_update",
"UPDATE corrected current preference with explicit invalidation",
1,
{"train_gold": 1.0},
),
evaluate.CandidateMemory(
"train_fact_weak",
"train_fact",
"atomic_fact",
"FACT weak standalone note",
1,
{"train_weak": 0.05},
),
),
{"train_gold": 4.0, "train_weak": 1.0},
)
estimator = evaluate.train_feature_utility_estimator(
(train_instance,),
train_distributions=("fixture",),
train_seeds=(0,),
ridge=0.01,
)
dev_instance = evaluate.OracleMemInstance(
"learned_dev_fixture",
(
evaluate.CandidateMemory(
"oracle_best",
"dev_exp",
"atomic_fact",
"FACT hidden gold evidence",
1,
{"gold": 1.0},
),
evaluate.CandidateMemory(
"learned_visible",
"dev_exp",
"compound_update",
"UPDATE corrected current preference with explicit invalidation",
1,
{},
),
),
{"gold": 1.0},
current_units=("gold",),
)
rows = evaluate.evaluate_instance(
dev_instance,
budgets=(1,),
methods=("oracle_gvt", "estimated_gvt", "estimated_utility"),
estimator_model=estimator.estimator_model,
estimator_profile=evaluate.LEARNED_ESTIMATOR_PROFILE,
estimator_state=estimator,
)
by_method = {row.method: row for row in rows}
self.assertEqual(by_method["oracle_gvt"].selected_candidate_ids, ("oracle_best",))
self.assertEqual(by_method["estimated_gvt"].selected_candidate_ids, ("learned_visible",))
self.assertEqual(by_method["estimated_utility"].selected_candidate_ids, ("learned_visible",))
self.assertLess(by_method["estimated_gvt"].objective_value, by_method["oracle_gvt"].objective_value)
metadata = by_method["estimated_gvt"].policy_metadata
self.assertEqual(metadata["estimator_profile"], evaluate.LEARNED_ESTIMATOR_PROFILE)
self.assertFalse(metadata["api_called"])
self.assertTrue(metadata["trained_estimator"])
self.assertTrue(metadata["oracle_coverage_used_for_training"])
self.assertFalse(metadata["oracle_coverage_used_for_dev_decision"])
def test_synthetic_train_dev_benchmark_evaluates_only_dev_seeds(self) -> None:
rows = evaluate.run_synthetic_train_dev_benchmark(
train_seeds=(0, 1),
dev_seeds=(2, 3),
budgets=(4,),
distributions=("base",),
methods=("estimated_gvt", "estimated_utility"),
normal_count=1,
update_count=1,
estimator_ridge=0.1,
)
self.assertEqual(len(rows), 4)
self.assertEqual({row.seed for row in rows}, {2, 3})
for row in rows:
self.assertTrue(row.budget_feasible, row.to_json())
self.assertTrue(row.group_feasible, row.to_json())
self.assertEqual(row.policy_metadata["estimator_profile"], evaluate.LEARNED_ESTIMATOR_PROFILE)
self.assertEqual(row.policy_metadata["train_seeds"], [0, 1])
self.assertFalse(row.policy_metadata["oracle_coverage_used_for_dev_decision"])
def test_human_package_evaluator_accepts_trained_estimator(self) -> None:
from llm_memory_validation.evaluate_human_style_examples import evaluate_human_package
train_instance = evaluate.OracleMemInstance(
"human_learned_train_fixture",
(
evaluate.CandidateMemory(
"train_visible_good",
"train_exp",
"compound_update",
"UPDATE corrected current preference with explicit invalidation",
1,
{"train_gold": 1.0},
),
evaluate.CandidateMemory(
"train_weak",
"train_weak_exp",
"summary",
"short low-signal summary",
1,
{"train_weak": 0.01},
),
),
{"train_gold": 3.0, "train_weak": 1.0},
)
estimator = evaluate.train_feature_utility_estimator(
(train_instance,),
train_distributions=("fixture",),
train_seeds=(0,),
ridge=0.01,
)
heldout_instance = evaluate.OracleMemInstance(
"human_learned_heldout_fixture",
(
evaluate.CandidateMemory(
"oracle_best",
"heldout_exp",
"atomic_fact",
"FACT hidden gold evidence",
1,
{"gold": 1.0},
),
evaluate.CandidateMemory(
"learned_visible",
"heldout_exp",
"compound_update",
"UPDATE corrected current preference with explicit invalidation",
1,
{},
),
),
{"gold": 1.0},
current_units=("gold",),
)
rows = evaluate_human_package(
heldout_instance,
budgets=(1,),
methods=("opt", "oracle_gvt", "estimated_gvt", "estimated_utility"),
estimator_model=estimator.estimator_model,
estimator_profile=evaluate.LEARNED_ESTIMATOR_PROFILE,
estimator_state=estimator,
)
by_method = {row.method: row for row in rows}
self.assertEqual(by_method["opt"].selected_candidate_ids, ("oracle_best",))
self.assertEqual(by_method["oracle_gvt"].selected_candidate_ids, ("oracle_best",))
self.assertEqual(by_method["estimated_gvt"].selected_candidate_ids, ("learned_visible",))
self.assertEqual(by_method["estimated_utility"].selected_candidate_ids, ("learned_visible",))
metadata = by_method["estimated_gvt"].policy_metadata
self.assertTrue(metadata["trained_estimator"])
self.assertTrue(metadata["oracle_coverage_used_for_training"])
self.assertFalse(metadata["oracle_coverage_used_for_dev_decision"])
def test_method_comparisons_are_nondegenerate(self) -> None:
instance = evaluate.generate_synthetic_instance(7, normal_count=3, update_count=2)
rows = evaluate.evaluate_instance(instance, budgets=(4,), methods=evaluate.DEFAULT_METHODS)
values = {row.method: round(row.objective_value, 8) for row in rows}
self.assertGreaterEqual(len(set(values.values())), 3, values)
opt_value = values["opt"]
for method, value in values.items():
self.assertLessEqual(value, opt_value + 1e-8, method)
self.assertLess(values["recency_raw"], opt_value)
self.assertIn("reservoir_raw", values)
def test_deployable_writer_baselines_are_feasible(self) -> None:
instance = evaluate.generate_synthetic_instance(9, normal_count=3, update_count=2)
rows = evaluate.evaluate_instance(
instance,
budgets=(5,),
methods=("memgpt_tiered", "mem0_extract", "amem_graph", "amac_admission"),
)
self.assertEqual(
{row.method for row in rows},
{"memgpt_tiered", "mem0_extract", "amem_graph", "amac_admission"},
)
for row in rows:
self.assertTrue(row.budget_feasible, row.to_json())
self.assertTrue(row.group_feasible, row.to_json())
self.assertLessEqual(row.selected_cost, row.budget)
self.assertEqual(
row.policy_metadata.get("policy_family"),
"deployable_writer_baseline",
)
self.assertFalse(row.policy_metadata.get("external_service_dependencies"))
self.assertFalse(row.policy_metadata.get("oracle_coverage_used_for_decision"))
self.assertIn("proxy_for", row.policy_metadata)
self.assertRegex(
row.policy_metadata.get("limitation", ""),
r"(Local proxy only|Faithful local adapter only)",
)
def test_candidate_quality_ablations_use_filtered_candidate_pools(self) -> None:
instance = evaluate.generate_synthetic_instance(10, normal_count=3, update_count=2)
rows = evaluate.evaluate_instance(
instance,
budgets=(6,),
methods=("opt", "generic_candidate_opt", "generic_candidate_gvt", "summary_candidate_opt"),
)
by_method = {row.method: row for row in rows}
by_id = evaluate.candidates_by_id(instance.candidates)
opt_value = by_method["opt"].objective_value
for method in ("generic_candidate_opt", "generic_candidate_gvt", "summary_candidate_opt"):
self.assertLessEqual(by_method[method].objective_value, opt_value + 1e-8)
self.assertEqual(
by_method[method].policy_metadata.get("policy_family"),
"candidate_quality_ablation",
)
for candidate_id in by_method["generic_candidate_opt"].selected_candidate_ids:
self.assertIn(
by_id[candidate_id].representation_type,
evaluate.GENERIC_CANDIDATE_TYPES,
)
for candidate_id in by_method["summary_candidate_opt"].selected_candidate_ids:
self.assertEqual(by_id[candidate_id].representation_type, "summary")
def test_distribution_field_and_summary_grouping(self) -> None:
rows = evaluate.run_synthetic_benchmark(
seeds=(0, 1),
budgets=(4,),
distributions=("base",),
methods=("opt", "oracle_gvt", "reservoir_raw"),
normal_count=1,
update_count=1,
)
self.assertTrue(all(row.distribution == "base" for row in rows))
summary = evaluate.aggregate_results(rows)
self.assertEqual(summary["distributions"], ["base"])
self.assertIn("by_distribution_budget_method", summary)
self.assertTrue(
all("distribution" in row for row in summary["by_distribution_budget_method"])
)
def test_outputs_include_jsonl_json_and_markdown(self) -> None:
rows = evaluate.run_synthetic_benchmark(
seeds=(0, 1),
budgets=(3, 5),
methods=("opt", "oracle_gvt", "no_tombstone_gvt", "no_tombstone_opt"),
normal_count=1,
update_count=1,
)
with tempfile.TemporaryDirectory() as tmp:
paths = evaluate.write_benchmark_outputs(rows, tmp)
raw_path = Path(paths["raw_jsonl"])
summary_json_path = Path(paths["summary_json"])
summary_md_path = Path(paths["summary_md"])
self.assertTrue(raw_path.exists())
self.assertTrue(summary_json_path.exists())
self.assertTrue(summary_md_path.exists())
raw_rows = [
json.loads(line)
for line in raw_path.read_text(encoding="utf-8").splitlines()
if line.strip()
]
self.assertEqual(len(raw_rows), len(rows))
summary = json.loads(summary_json_path.read_text(encoding="utf-8"))
self.assertIn("by_budget_method", summary)
self.assertIn("Ratio Labels", summary_md_path.read_text(encoding="utf-8"))
def test_coverage_package_export_contains_solver_inputs(self) -> None:
instance = evaluate.generate_synthetic_instance(12, normal_count=2, update_count=1)
expected_positive_rows = sum(
1
for candidate in instance.candidates
for value in candidate.coverage.values()
if value > 0
)
with tempfile.TemporaryDirectory() as tmp:
paths = evaluate.write_coverage_package(instance, tmp)
for path in paths.values():
self.assertTrue(Path(path).exists(), path)
manifest = json.loads(Path(paths["manifest"]).read_text(encoding="utf-8"))
self.assertEqual(manifest["instance_id"], instance.instance_id)
self.assertEqual(manifest["counts"]["candidate_memories"], len(instance.candidates))
self.assertEqual(manifest["counts"]["positive_coverage_rows"], expected_positive_rows)
coverage_rows = [
json.loads(line)
for line in Path(paths["coverage_matrix"]).read_text(encoding="utf-8").splitlines()
if line.strip()
]
self.assertEqual(len(coverage_rows), expected_positive_rows)
self.assertTrue(all(0.0 < row["coverage"] <= 1.0 for row in coverage_rows))
def test_exported_coverage_package_passes_structural_audit(self) -> None:
from scripts.audit_coverage_artifacts import audit_artifact
instance = evaluate.generate_synthetic_instance(13, normal_count=2, update_count=1)
with tempfile.TemporaryDirectory() as tmp:
paths = evaluate.write_coverage_package(instance, tmp)
audit = audit_artifact(
"synthetic_package",
Path(paths["package_dir"]),
"Synthetic OracleMem coverage package.",
sample_rows=1000,
)
self.assertEqual(audit.format, "coverage_package_dir")
self.assertEqual(
audit.statuses["oracle_denominator"],
"machine-checkable coverage package",
)
self.assertEqual(
audit.statuses["coverage_matrix"],
"candidate-unit coverage present",
)
self.assertTrue(all(audit.package_files.values()), audit.package_files)
coverage_rows = [
json.loads(line)
for line in Path(paths["coverage_matrix"]).read_text(encoding="utf-8").splitlines()
if line.strip()
]
self.assertTrue(all("candidate_id" in row and "unit_id" in row for row in coverage_rows))
query_rows = [
json.loads(line)
for line in Path(paths["queries"]).read_text(encoding="utf-8").splitlines()
if line.strip()
]
self.assertGreater(len(query_rows), 0)
self.assertTrue(all(row["required_unit_ids"] for row in query_rows))
if __name__ == "__main__":
unittest.main()