import pytest
from data.news_client import NewsClient

@pytest.fixture
def client():
    return NewsClient(cryptopanic_key="test", newsapi_key="test")

def test_parse_cryptopanic_response(client):
    raw = {
        "results": [
            {"title": "Bitcoin hits new high", "published_at": "2026-03-20T10:00:00Z",
             "currencies": [{"code": "BTC"}], "kind": "news",
             "votes": {"positive": 10, "negative": 2}},
            {"title": "ETH upgrade coming", "published_at": "2026-03-20T09:00:00Z",
             "currencies": [{"code": "ETH"}], "kind": "news",
             "votes": {"positive": 5, "negative": 1}},
        ]
    }
    articles = client.parse_cryptopanic(raw)
    assert len(articles) == 2
    assert articles[0]["coin"] == "BTC"
    assert articles[0]["title"] == "Bitcoin hits new high"

def test_get_news_for_coin_filters(client):
    articles = [
        {"coin": "BTC", "title": "BTC news", "sentiment_votes": {"positive": 5, "negative": 1}},
        {"coin": "ETH", "title": "ETH news", "sentiment_votes": {"positive": 3, "negative": 3}},
    ]
    btc_news = client.filter_by_coin(articles, "BTC")
    assert len(btc_news) == 1
    assert btc_news[0]["coin"] == "BTC"