"""GC-01~03: gcov_collector — COBOL 覆盖率采集"""

import sys, os, tempfile
from pathlib import Path
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..")))
from hina.gcov_collector import collect_gcov


def test_gcov_not_installed():
    """GC-01: cobc 不在 PATH → available=False"""
    # Use a temp dir that won't have .gcda/.gcno files
    with tempfile.TemporaryDirectory() as tmp:
        work = Path(tmp)
        result = collect_gcov(work / "program.cbl", work)
        assert isinstance(result, dict)
        # available should be False or result has a status field
        assert not result.get("available", True) or "reason" in result


def test_gcov_no_data():
    """GC-02: 无 .gcda/.gcno → available=False"""
    with tempfile.TemporaryDirectory() as tmp:
        cobol_src = Path(tmp) / "test.cbl"
        cobol_src.write_text("PROGRAM-ID. TEST.")
        result = collect_gcov(cobol_src, Path(tmp))
        assert result.get("available") is False
        assert "reason" in result


def test_gcov_result_structure():
    """返回的 dict 包含必要字段"""
    with tempfile.TemporaryDirectory() as tmp:
        result = collect_gcov(Path(tmp) / "nope.cbl", Path(tmp))
        assert "available" in result
        assert "reason" in result or "line_rate" in result