from __future__ import annotations

from pathlib import Path

import pytest

import scripts.benchmark as benchmark


def test_load_benchmark_dataset():
    dataset = benchmark.load_benchmark_dataset(Path("fixtures/benchmark/quality_benchmark.json"))
    assert dataset["dataset_version"] == "vr116-2026-07-21"
    assert isinstance(dataset["parser_coverage"], list)
    assert isinstance(dataset["dedupe"], dict)


def test_percentile_helper_is_deterministic():
    assert benchmark._percentile([1.0, 2.0, 3.0, 4.0], 50) == 2.0
    assert benchmark._percentile([], 95) == 0.0


@pytest.mark.django_db
def test_run_benchmark_report_smoke(db):
    report = benchmark.run_benchmark_report(
        Path("fixtures/benchmark/quality_benchmark.json"),
        quick=True,
        top_n=20,
        jobs=25,
        skip_performance=True,
    )

    assert report["status"] in {"passed", "failed"}
    assert report["jobs_processed"] == 25
    assert report["top_n"] == 20
    assert report["performance"]["status"] == "skipped"
    assert report["nfr_007"]["measured"] is False
    assert set(report["hardware"].keys()) >= {"platform", "python", "cpu_count"}
    assert report["parser"]["coverage_ratio"] >= 0
    assert report["ranking"]["top_n"] == 20