"""scripts/run_trial.py 驱动测试（fake 模式，离线确定性，无需 API key）。"""
import json
from pathlib import Path

from scripts.run_trial import main


def test_run_trial_fake_produces_docx_and_report(tmp_path):
    out = tmp_path / "output.docx"
    report = tmp_path / "impact-report.json"

    result = main([
        "--fake",
        "--output", str(out),
        "--impact-report", str(report),
    ])

    # 章数：真实概要设计书模板按 §6.5 归并后为 7 个 H1 章
    #（H2/H3 子节归入父章，不再独立成章被丢弃）
    assert result["chapters"] == 7
    # 影响调查 summary 与 MVP 基线一致
    assert result["summary"] == {
        "total": 16, "new": 5, "modified": 8, "deleted": 3,
        "unchanged": 50, "warnings": 0,
    }
    assert out.is_file()
    assert report.is_file()
    data = json.loads(report.read_text(encoding="utf-8"))
    assert data["summary"] == result["summary"]


def test_run_trial_fake_docx_contains_injected_text(tmp_path):
    out = tmp_path / "out.docx"
    report = tmp_path / "ir.json"

    main(["--fake", "--output", str(out), "--impact-report", str(report)])

    from docx import Document
    joined = "\n".join(p.text for p in Document(str(out)).paragraphs)
    assert "自动生成内容" in joined