feat: email validation

backend/app/tests/test_email_validation.py

@@ -0,0 +1,47 @@
+from fastapi.testclient import TestClient
+
+
+def test_create_newsletter_with_invalid_email(client: TestClient):
+    """Test creating a newsletter with an invalid sender email."""
+    newsletter_data = {
+        "name": "Invalid Email Test",
+        "sender_emails": ["not-an-email"],
+    }
+    response = client.post("/newsletters", json=newsletter_data)
+    assert response.status_code == 422  # Unprocessable Entity
+    data = response.json()
+    assert "value is not a valid email address" in data["detail"][0]["msg"]
+
+
+def test_create_newsletter_with_valid_and_invalid_emails(client: TestClient):
+    """Test creating a newsletter with a mix of valid and invalid emails."""
+    newsletter_data = {
+        "name": "Mixed Emails Test",
+        "sender_emails": ["valid@example.com", "invalid-email"],
+    }
+    response = client.post("/newsletters", json=newsletter_data)
+    assert response.status_code == 422
+    data = response.json()
+    assert data["detail"][0]["loc"] == ["body", "sender_emails", 1]
+
+
+def test_update_newsletter_with_invalid_email(client: TestClient):
+    """Test updating a newsletter with an invalid sender email."""
+    # First, create a valid newsletter
+    create_response = client.post(
+        "/newsletters",
+        json={
+            "name": "Update Test",
+            "sender_emails": ["initial@example.com"],
+        },
+    )
+    assert create_response.status_code == 200
+    newsletter_id = create_response.json()["id"]
+
+    # Now, try to update it with an invalid email
+    update_data = {
+        "name": "Updated Name",
+        "sender_emails": ["not-a-valid-email"],
+    }
+    response = client.put(f"/newsletters/{newsletter_id}", json=update_data)
+    assert response.status_code == 422