import pytest
from app.models import User, Ad, AdVersion
from app import db

@pytest.fixture
def test_user():
    user = User(email="test@example.com")
    user.set_password("password123")
    return user

@pytest.fixture
def test_ad(test_user):
    return Ad(content="Test ad content", user_id=test_user.id)

def test_user_creation(test_user):
    assert test_user.email == "test@example.com"
    assert test_user.check_password("password123")

def test_ad_creation(test_ad):
    assert test_ad.content == "Test ad content"
    assert test_ad.user_id is not None

def test_ad_version_creation(test_ad):
    version = AdVersion(content="Updated ad content", ad_id=test_ad.id)
    assert version.content == "Updated ad content"
    assert version.ad_id == test_ad.id