"""V8.17 runner contract: artifacts never hide failures or timeouts."""
import importlib.util
import json
import os
import sys
from pathlib import Path

import pytest

PATH=Path(__file__).resolve().parents[1]/'scripts'/'regression_v817.py'
spec=importlib.util.spec_from_file_location('regression_v817',PATH)
m=importlib.util.module_from_spec(spec)
sys.modules[spec.name]=m
spec.loader.exec_module(m)


def test_clean_report(tmp_path):
    r=m.Run('round1-batch1',['tests/test_example.py'],'PASS',1.25,0,4,str(tmp_path/'e.log'))
    out=m.write_reports([r],tmp_path/'report',1,1)
    assert out['status']=='PASS'
    assert out['tests_last_complete_round']==4
    assert (tmp_path/'report.html').read_text().startswith('<!doctype html>')


def test_failure_not_erased_by_diagnostic_retry(tmp_path):
    original=m.Run('round1-batch1',['tests/test_example.py'],'TIMEOUT',1.0,None,0,str(tmp_path/'1.log'))
    isolated=m.Run('round1-batch1-isolated-1',['tests/test_example.py'],'PASS',1.0,0,2,str(tmp_path/'2.log'))
    out=m.write_reports([original,isolated],tmp_path/'report',1,1)
    assert out['status']=='FAIL'
    assert len(out['failures'])==1
    assert json.loads((tmp_path/'report.json').read_text())['status']=='FAIL'


def test_runner_rejects_bad_parameters():
    with pytest.raises(SystemExit) as exc:
        m.main(['--repeat','0'])
    assert exc.value.code==2


@pytest.mark.skipif(os.name=='nt',reason='POSIX signal process-group check')
def test_slow_pytest_process_times_out_and_is_reaped(tmp_path):
    test=tmp_path/'test_slow_v817.py'
    test.write_text('import time\ndef test_slow():\n    time.sleep(15)\n')
    out=m.run_pytest('unit-timeout',[str(test)],1,tmp_path,os.environ.copy())
    assert out.status=='TIMEOUT'
    assert out.seconds<7
    assert 'TIMEOUT' in Path(out.log).read_text()