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import json
import sys
from pathlib import Path
import pytest
import dlb.runner as runner_module
from dlb.conditional_prompts import PromptManifest
from dlb.io import expected_conditional_schedule
from dlb.runner import RunRequest, _identity, run_experiment
from tests.test_runner import FakeAdapter, prepare_canonical_root
ROOT = Path(__file__).parents[1]
SCHEDULE_TEXT = "c0:p0-1023;c1-4:p0-255"
def _base_request() -> RunRequest:
return RunRequest(
run_id="flm-lm1b-steps-2",
model_id="flm",
dataset_id="lm1b",
step_count=2,
seed=42,
sample_count=2,
)
def _conditional_request(manifest: Path) -> RunRequest:
return RunRequest(
**{
**_base_request().__dict__,
"sample_count": 2048,
"generation_mode": "conditional_prefix",
"conditioning_manifest": str(manifest),
"conditioning_manifest_sha256": "a" * 64,
"conditioning_config_sha256": "b" * 64,
"prefix_length": 64,
"evaluation_continuation_length": 64,
"prompt_count": 1024,
"diversity_prompt_count": 256,
"completions_per_diversity_prompt": 5,
"completion_schedule": SCHEDULE_TEXT,
}
)
def test_unconditional_identity_has_no_conditional_keys():
"""Catch a change to unconditional cache identity caused by new conditional fields."""
identity = _identity(_base_request(), ["python", "sample.py"])
assert "generation_mode" not in identity
assert "conditioning_manifest_sha256" not in identity
def test_conditional_identity_binds_manifest_and_schedule(tmp_path: Path):
"""Catch a conditional cache identity that can reuse a different prompt schedule."""
identity = _identity(_conditional_request(tmp_path / "manifest.json"), ["python", "sample.py"])
assert identity["generation_mode"] == "conditional_prefix"
assert identity["conditioning_manifest_sha256"] == "a" * 64
assert identity["prefix_length"] == 64
assert identity["completion_schedule"] == SCHEDULE_TEXT
def test_unconditional_request_rejects_conditional_fields(tmp_path: Path):
"""Catch accidental conditional provenance being silently ignored by an unconditional run."""
prepare_canonical_root(tmp_path)
request = RunRequest(**{**_base_request().__dict__, "prefix_length": 64})
command = [sys.executable, "-c", "print('ok')"]
with pytest.raises(ValueError, match="conditional"):
run_experiment(request, tmp_path, adapter=FakeAdapter(command, []))
def _conditional_records() -> list[dict[str, object]]:
records: list[dict[str, object]] = []
for sample_id, (prompt_id, completion_id) in enumerate(expected_conditional_schedule()):
prefix = [1] * 64
continuation = [2] * 64
records.append(
{
"sample_id": sample_id,
"prompt_id": prompt_id,
"completion_id": completion_id,
"source_index": sample_id,
"prefix_token_ids": prefix,
"continuation_token_ids": continuation,
"reference_token_ids": [3] * 64,
"full_token_ids": prefix + continuation,
"prefix_text": "fixed prefix",
"continuation_text": "generated continuation",
"reference_text": "source continuation",
"full_text": "fixed prefix generated continuation",
"seed": 42,
"generation_seconds": 0.25,
"prefix_exact_match": True,
}
)
return records
def _sidecar(root: Path) -> Path:
path = root / "data" / "manifests" / "conditional-lm1b-c64.json"
path.parent.mkdir(parents=True, exist_ok=True)
path.write_text("{}\n", encoding="utf-8")
return path
def test_conditional_runner_publishes_in_isolated_root_with_verified_contract(
tmp_path: Path, monkeypatch: pytest.MonkeyPatch
):
"""Catch conditional publication falling back to unconditional I/O or LM1B defaults."""
prepare_canonical_root(tmp_path)
config = tmp_path / "configs" / "conditional.yaml"
config.write_text((ROOT / "configs" / "conditional.yaml").read_text(encoding="utf-8"), encoding="utf-8")
manifest_path = tmp_path / "data" / "conditional" / "lm1b-c64" / "prompts.jsonl"
manifest_path.parent.mkdir(parents=True)
manifest_path.write_text("{}\n", encoding="utf-8")
sidecar_path = _sidecar(tmp_path)
prompt_manifest = PromptManifest(
schema_version=1,
protocol="c64_zs_v1",
dataset="lm1b",
source_split="validation",
source_processed_path="data/processed/lm1b-bert-128/validation",
source_manifest_path="data/manifests/lm1b.json",
source_manifest_sha256="c" * 64,
tokenizer_id="bert-base-uncased",
tokenizer_revision="revision",
vocabulary_size=10,
selection_algorithm="test-selection",
selection_seed=42,
source_row_count=1024,
prompt_count=1024,
prefix_length=64,
evaluation_continuation_length=64,
model_length=128,
prompt_file="data/conditional/lm1b-c64/prompts.jsonl",
prompt_file_sha256=hashlib.sha256(manifest_path.read_bytes()).hexdigest(),
)
monkeypatch.setattr(runner_module, "verify_prompts", lambda root, dataset, config: prompt_manifest)
observed: dict[str, object] = {}
original_writer = runner_module.write_conditional_samples_atomic
def writer(path, records, **kwargs):
observed.update(kwargs)
return original_writer(path, records, **kwargs)
monkeypatch.setattr(runner_module, "write_conditional_samples_atomic", writer)
expected_manifest_sha = hashlib.sha256(sidecar_path.read_bytes()).hexdigest()
expected_config_sha = hashlib.sha256(config.read_bytes()).hexdigest()
request = RunRequest(
**{
**_conditional_request(sidecar_path).__dict__,
"conditioning_manifest_sha256": expected_manifest_sha,
"conditioning_config_sha256": expected_config_sha,
}
)
command = [sys.executable, "-c", "print('ok')"]
adapter = FakeAdapter(command, _conditional_records())
result = run_experiment(request, tmp_path, adapter=adapter)
assert result.status == "succeeded"
assert result.run_dir == tmp_path / "results" / "conditional" / "samples" / "lm1b" / "flm" / "steps_2"
assert observed == {
"expected": 2048,
"schedule": expected_conditional_schedule(),
"sequence_length": 128,
"vocab_size": 10,
}
def test_conditional_runner_allows_descendant_of_isolated_root(
tmp_path: Path, monkeypatch: pytest.MonkeyPatch
):
"""Catch conditional smoke output roots being rejected despite remaining isolated."""
prepare_canonical_root(tmp_path)
config = tmp_path / "configs" / "conditional.yaml"
config.write_text((ROOT / "configs" / "conditional.yaml").read_text(encoding="utf-8"), encoding="utf-8")
manifest_path = tmp_path / "data" / "conditional" / "lm1b-c64" / "prompts.jsonl"
manifest_path.parent.mkdir(parents=True)
manifest_path.write_text("{}\n", encoding="utf-8")
sidecar_path = _sidecar(tmp_path)
prompt_manifest = PromptManifest(
schema_version=1, protocol="c64_zs_v1", dataset="lm1b", source_split="validation",
source_processed_path="data/processed/lm1b-bert-128/validation", source_manifest_path="data/manifests/lm1b.json",
source_manifest_sha256="c" * 64, tokenizer_id="bert-base-uncased", tokenizer_revision="revision",
vocabulary_size=10, selection_algorithm="test-selection", selection_seed=42, source_row_count=1024,
prompt_count=1024, prefix_length=64, evaluation_continuation_length=64, model_length=128,
prompt_file="data/conditional/lm1b-c64/prompts.jsonl", prompt_file_sha256=hashlib.sha256(manifest_path.read_bytes()).hexdigest(),
)
monkeypatch.setattr(runner_module, "verify_prompts", lambda root, dataset, config: prompt_manifest)
request = RunRequest(
**{
**_conditional_request(sidecar_path).__dict__,
"conditioning_manifest_sha256": hashlib.sha256(sidecar_path.read_bytes()).hexdigest(),
"conditioning_config_sha256": hashlib.sha256(config.read_bytes()).hexdigest(),
"results_root": str(tmp_path / "results" / "conditional" / "smoke"),
}
)
command = [sys.executable, "-c", "print('ok')"]
result = run_experiment(request, tmp_path, adapter=FakeAdapter(command, _conditional_records()))
assert result.run_dir == tmp_path / "results" / "conditional" / "smoke" / "samples" / "lm1b" / "flm" / "steps_2"
def test_conditional_runner_rejects_results_root_outside_isolated_tree(
tmp_path: Path, monkeypatch: pytest.MonkeyPatch
):
"""Catch a conditional request that can write into unconditional results."""
prepare_canonical_root(tmp_path)
config = tmp_path / "configs" / "conditional.yaml"
config.write_text((ROOT / "configs" / "conditional.yaml").read_text(encoding="utf-8"), encoding="utf-8")
prompt = tmp_path / "data" / "conditional" / "lm1b-c64" / "prompts.jsonl"
prompt.parent.mkdir(parents=True)
prompt.write_text("{}\n", encoding="utf-8")
sidecar_path = _sidecar(tmp_path)
manifest = _conditional_request(sidecar_path)
monkeypatch.setattr(runner_module, "verify_prompts", lambda root, dataset, config: PromptManifest(
schema_version=1, protocol="c64_zs_v1", dataset="lm1b", source_split="validation",
source_processed_path="x", source_manifest_path="y", source_manifest_sha256="c" * 64,
tokenizer_id="tokenizer", tokenizer_revision="revision", vocabulary_size=10, selection_algorithm="selection",
selection_seed=42, source_row_count=1024, prompt_count=1024, prefix_length=64,
evaluation_continuation_length=64, model_length=128, prompt_file="data/conditional/lm1b-c64/prompts.jsonl",
prompt_file_sha256=hashlib.sha256(prompt.read_bytes()).hexdigest(),
))
request = RunRequest(**{**manifest.__dict__, "conditioning_manifest_sha256": hashlib.sha256(sidecar_path.read_bytes()).hexdigest(), "conditioning_config_sha256": hashlib.sha256(config.read_bytes()).hexdigest(), "results_root": str(tmp_path / "results")})
command = [sys.executable, "-c", "raise SystemExit(99)"]
with pytest.raises(ValueError, match="conditional.*results_root"):
run_experiment(request, tmp_path, adapter=FakeAdapter(command, []))
def test_conditional_runner_rejects_noncanonical_sampling_seed_before_command(
tmp_path: Path, monkeypatch: pytest.MonkeyPatch
):
"""Catch a conditional run whose seed diverges from the verified C64 protocol."""
prepare_canonical_root(tmp_path)
config = tmp_path / "configs" / "conditional.yaml"
config.write_text((ROOT / "configs" / "conditional.yaml").read_text(encoding="utf-8"), encoding="utf-8")
prompt = tmp_path / "data" / "conditional" / "lm1b-c64" / "prompts.jsonl"
prompt.parent.mkdir(parents=True)
prompt.write_text("{}\n", encoding="utf-8")
monkeypatch.setattr(runner_module, "verify_prompts", lambda root, dataset, config: PromptManifest(
schema_version=1, protocol="c64_zs_v1", dataset="lm1b", source_split="validation",
source_processed_path="x", source_manifest_path="y", source_manifest_sha256="c" * 64,
tokenizer_id="tokenizer", tokenizer_revision="revision", vocabulary_size=10, selection_algorithm="selection",
selection_seed=42, source_row_count=1024, prompt_count=1024, prefix_length=64,
evaluation_continuation_length=64, model_length=128, prompt_file="data/conditional/lm1b-c64/prompts.jsonl",
prompt_file_sha256=hashlib.sha256(prompt.read_bytes()).hexdigest(),
))
request = RunRequest(**{**_conditional_request(prompt).__dict__, "seed": 7, "conditioning_manifest_sha256": hashlib.sha256(prompt.read_bytes()).hexdigest(), "conditioning_config_sha256": hashlib.sha256(config.read_bytes()).hexdigest()})
command = [sys.executable, "-c", "raise SystemExit(99)"]
with pytest.raises(ValueError, match="seed"):
run_experiment(request, tmp_path, adapter=FakeAdapter(command, []))
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