import pytest
from agents.news import NewsAgent

def test_score_positive_news():
    agent = NewsAgent()
    articles = [
        {"title": "Bitcoin surges 10%", "sentiment_votes": {"positive": 10, "negative": 1}},
        {"title": "BTC adoption grows", "sentiment_votes": {"positive": 8, "negative": 2}},
        {"title": "Bitcoin rally continues", "sentiment_votes": {"positive": 15, "negative": 0}},
    ]
    score = agent.analyze(articles)
    assert score >= 70

def test_score_negative_news():
    agent = NewsAgent()
    articles = [
        {"title": "Bitcoin crashes hard", "sentiment_votes": {"positive": 1, "negative": 10}},
        {"title": "Crypto market in fear", "sentiment_votes": {"positive": 0, "negative": 15}},
    ]
    score = agent.analyze(articles)
    assert score <= 35

def test_score_no_news_returns_50():
    agent = NewsAgent()
    assert agent.analyze([]) == 50

def test_score_mixed_news():
    agent = NewsAgent()
    articles = [{"title": "BTC up", "sentiment_votes": {"positive": 5, "negative": 5}}]
    score = agent.analyze(articles)
    assert 40 <= score <= 60