fix: import datetime in email_service.py to fix NameError, add Stripe emails unit tests

services/email_service.py

@@ -8,6 +8,7 @@ Configuration is resolved from settings JSON file, then env vars.
 import os
 import logging
 import smtplib
+from datetime import datetime
 from email.mime.text import MIMEText
 from email.mime.multipart import MIMEMultipart
 from typing import Optional

tests/test_stripe_emails.py

@@ -0,0 +1,125 @@
+"""
+Tests for Stripe transactional emails and template rendering.
+"""
+
+import pytest
+from unittest.mock import patch, MagicMock
+from services.email_service import send_subscription_email_async
+
+
+@pytest.mark.asyncio
+async def test_send_subscription_email_activated():
+    """Test send_subscription_email_async for activated event renders and calls send_email_async"""
+    with patch("services.email_service.send_email_async") as mock_send:
+        mock_send.return_value = True
+        
+        result = await send_subscription_email_async(
+            to_email="customer@example.com",
+            user_name="Jean Dupont",
+            event_type="activated",
+            details={"plan_name": "pro", "ends_at": "15/06/2026"}
+        )
+        
+        assert result is True
+        mock_send.assert_called_once()
+        args, kwargs = mock_send.call_args
+        to_email, subject, body = args
+        
+        assert to_email == "customer@example.com"
+        assert "activé" in subject or "active" in subject
+        assert "Jean Dupont" in body
+        assert "Pro" in body
+        assert "15/06/2026" in body
+
+
+@pytest.mark.asyncio
+async def test_send_subscription_email_cancelled():
+    """Test send_subscription_email_async for cancelled event renders correctly"""
+    with patch("services.email_service.send_email_async") as mock_send:
+        mock_send.return_value = True
+        
+        result = await send_subscription_email_async(
+            to_email="customer@example.com",
+            user_name="Jean Dupont",
+            event_type="cancelled",
+            details={"ends_at": "15/06/2026"}
+        )
+        
+        assert result is True
+        mock_send.assert_called_once()
+        args, kwargs = mock_send.call_args
+        _, subject, body = args
+        
+        assert "annulation" in subject.lower()
+        assert "Jean Dupont" in body
+        assert "15/06/2026" in body
+        assert "Aucun autre prélèvement" in body
+
+
+@pytest.mark.asyncio
+async def test_send_subscription_email_ended():
+    """Test send_subscription_email_async for ended event renders correctly"""
+    with patch("services.email_service.send_email_async") as mock_send:
+        mock_send.return_value = True
+        
+        result = await send_subscription_email_async(
+            to_email="customer@example.com",
+            user_name="Jean Dupont",
+            event_type="ended",
+            details={}
+        )
+        
+        assert result is True
+        mock_send.assert_called_once()
+        args, kwargs = mock_send.call_args
+        _, subject, body = args
+        
+        assert "expiré" in subject.lower()
+        assert "Jean Dupont" in body
+        assert "Gratuit" in body
+
+
+@pytest.mark.asyncio
+async def test_send_subscription_email_payment_failed():
+    """Test send_subscription_email_async for payment_failed event renders correctly"""
+    with patch("services.email_service.send_email_async") as mock_send:
+        mock_send.return_value = True
+        
+        result = await send_subscription_email_async(
+            to_email="customer@example.com",
+            user_name="Jean Dupont",
+            event_type="payment_failed",
+            details={}
+        )
+        
+        assert result is True
+        mock_send.assert_called_once()
+        args, kwargs = mock_send.call_args
+        _, subject, body = args
+        
+        assert "échec" in subject.lower() or "echec" in subject.lower()
+        assert "Jean Dupont" in body
+        assert "coordonnées" in body or "coordonnees" in body
+
+
+@pytest.mark.asyncio
+async def test_send_subscription_email_credits_purchased():
+    """Test send_subscription_email_async for credits_purchased event renders correctly"""
+    with patch("services.email_service.send_email_async") as mock_send:
+        mock_send.return_value = True
+        
+        result = await send_subscription_email_async(
+            to_email="customer@example.com",
+            user_name="Jean Dupont",
+            event_type="credits_purchased",
+            details={"credits": 50}
+        )
+        
+        assert result is True
+        mock_send.assert_called_once()
+        args, kwargs = mock_send.call_args
+        _, subject, body = args
+        
+        assert "crédits" in subject.lower() or "credits" in subject.lower()
+        assert "Jean Dupont" in body
+        assert "+50" in body