fix: 이메일 발송 시 body를 HTML 렌더링된 결과로 전송하도록 수정

app/notification/models/email.py

@@ -1,4 +1,4 @@
-from typing import ClassVar
+from typing import Any, ClassVar
 
 from core.external_apis.smtp_email import EmailClient, email_client
 from django.db import models
@@ -17,6 +17,12 @@ class EmailNotificationTemplate(NotificationTemplateBase):
 class EmailNotificationHistorySentTo(NotificationHistorySentToBase):
     history = models.ForeignKey("EmailNotificationHistory", on_delete=models.PROTECT, related_name="sent_to_list")
 
+    @property
+    def payload(self) -> dict[str, Any]:
+        rendered = self.render()
+        rendered["body"] = self.render_as_html()
+        return rendered
+
 
 class EmailNotificationHistoryQuerySet(
     NotificationHistoryQuerySet["EmailNotificationHistory", EmailNotificationTemplate],

app/notification/test/history_send_test.py

@@ -126,6 +126,30 @@ def test_history_send_parameters_uses_rendered_payload(system_user):
     assert params["template_code"] == "render"
 
 
+@pytest.mark.django_db
+def test_email_payload_body_is_html_rendered(system_user):
+    # 이메일 발송 시 payload["body"]는 HTML 템플릿으로 렌더링된 결과여야 함.
+    tpl = EmailNotificationTemplate.objects.create(
+        code="html-body",
+        title="t",
+        sent_from="a@b.c",
+        data='{"title":"안녕 {{ name }}","body":"본문 {{ name }}"}',
+        created_by=system_user,
+        updated_by=system_user,
+    )
+    history = _create_history(tpl, context={"name": "길동"})
+    sent_to = history.sent_to_list.get()
+    payload = sent_to.payload
+
+    # title은 plain text
+    assert payload["title"] == "안녕 길동"
+    assert not payload["title"].strip().startswith("<")
+
+    # body는 HTML 렌더링 결과
+    assert payload["body"].strip().startswith("<")
+    assert "길동" in payload["body"]
+
+
 @pytest.mark.django_db
 def test_history_template_code_property_returns_template_code(email_template):
     history = _create_history(email_template)