import pytest
from unittest.mock import AsyncMock
from app.screener.ai_news import scraper
SAMPLE_HTML = """
"""
EMPTY_HTML = ""
def _mk_client(status_code=200, text=SAMPLE_HTML):
client = AsyncMock()
resp = AsyncMock()
resp.status_code = status_code
resp.text = text
client.get = AsyncMock(return_value=resp)
return client
@pytest.mark.asyncio
async def test_fetch_news_success_returns_n_items():
client = _mk_client()
out = await scraper.fetch_news(client, "005930", n=2)
assert len(out) == 2
assert out[0]["title"] == "삼성전자, HBM 양산 가시화"
assert out[0]["date"] == "2026.05.13 07:30"
@pytest.mark.asyncio
async def test_fetch_news_404_returns_empty():
client = _mk_client(status_code=404, text="")
out = await scraper.fetch_news(client, "999999", n=5)
assert out == []
@pytest.mark.asyncio
async def test_fetch_news_empty_table_returns_empty():
client = _mk_client(text=EMPTY_HTML)
out = await scraper.fetch_news(client, "005930", n=5)
assert out == []
@pytest.mark.asyncio
async def test_fetch_news_n_caps_results():
client = _mk_client()
out = await scraper.fetch_news(client, "005930", n=2)
assert len(out) == 2 # 샘플에 3개 있지만 n=2로 잘림