Create tests/test_models.py

app/tests/test_models.py

@@ -0,0 +1,26 @@
+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