"""unit test: fetch_all_pages result accounting for any iterable input

run from the repo root:
    uv run pytest tests/test_fetch_all_pages.py

pure and offline — no HTTP. Regression: a generator page_range was exhausted
building the tasks, so the result pairing dropped every failure and swallowed
unexpected exceptions.
"""

import asyncio

import pytest
from aioweb import AiowebError

from monitor_utils.runner import fetch_all_pages


async def _failing_fetch(page: int):
    raise AiowebError(f"page {page} failed")


async def _crashing_fetch(page: int):
    raise ValueError(f"page {page} crashed")


def test_generator_input_still_reports_failed_pages():
    failed = asyncio.run(
        fetch_all_pages((p for p in [2, 3]), _failing_fetch, "cat", "page")
    )
    assert failed == [2, 3]


def test_generator_input_still_raises_unexpected_errors():
    with pytest.raises(ValueError):
        asyncio.run(fetch_all_pages((p for p in [2]), _crashing_fetch, "cat", "page"))


def test_range_input_reports_failed_pages():
    """The re-iterable path the in-repo caller uses keeps working."""

    failed = asyncio.run(fetch_all_pages(range(2, 4), _failing_fetch, "cat", "page"))
    assert failed == [2, 3]