"""39 케이스 커버리지 갭 분석 단위테스트."""
from __future__ import annotations

from dataclasses import dataclass

from app.engine.case_coverage import analyze_coverage


@dataclass
class _Case:
    case_id: str
    subgroup: str
    actor: str
    detectable_internal: bool


_CASES = [
    _Case("A1", "A-1", "저자(가해)", True),
    _Case("A2", "A-1", "저자(가해)", True),
    _Case("C1", "C", "플랫폼", False),   # 탐지 범위 밖
]


def test_no_data_all_detectable_need_data():
    rep = analyze_coverage(_CASES, None)
    assert rep["detectable_cases"] == 2
    assert rep["need_data_cases"] == 2
    assert rep["covered_cases"] == 0
    assert rep["coverage_ratio"] == 0.0


def test_with_samples_marks_covered():
    rep = analyze_coverage(_CASES, {"A1": 10})
    assert rep["covered_cases"] == 1
    assert rep["need_data_cases"] == 1
    assert rep["coverage_ratio"] == 0.5


def test_out_of_scope_excluded_from_request():
    rep = analyze_coverage(_CASES, {"A1": 5, "A2": 5})
    ids = {x["case_id"] for x in rep["data_request_list"]}
    assert "C1" not in ids
    assert rep["need_data_cases"] == 0