From 1d6ce47347b1804141c12efe1cb4e148482f2b9e Mon Sep 17 00:00:00 2001
From: jacklinke <jacklinke@gmail.com>
Date: Mon, 21 Oct 2024 23:25:15 -0400
Subject: [PATCH] Get tests working

---
 example_project/conftest.py                   |  11 ++
 .../templates/templated_email/test_message.md |  10 ++
 .../test_django_templated_email_md.py         | 141 +++++++++++++++++-
 3 files changed, 158 insertions(+), 4 deletions(-)
 create mode 100644 example_project/conftest.py
 create mode 100644 example_project/example/templates/templated_email/test_message.md

diff --git a/example_project/conftest.py b/example_project/conftest.py
new file mode 100644
index 0000000..d5db8c4
--- /dev/null
+++ b/example_project/conftest.py
@@ -0,0 +1,11 @@
+"""Pytest fixtures for templated_email_md tests."""
+
+import pytest
+
+from templated_email_md.backend import MarkdownTemplateBackend
+
+
+@pytest.fixture
+def backend():
+    """Create a MarkdownTemplateBackend instance."""
+    return MarkdownTemplateBackend()
diff --git a/example_project/example/templates/templated_email/test_message.md b/example_project/example/templates/templated_email/test_message.md
new file mode 100644
index 0000000..8e17bc0
--- /dev/null
+++ b/example_project/example/templates/templated_email/test_message.md
@@ -0,0 +1,10 @@
+{% block subject %}Test Email{% endblock %}
+
+# Hello {{ name }}!
+
+This is a **bold** test.
+
+1. Item one
+2. Item two
+
+[A link](http://example.com)
diff --git a/example_project/test_django_templated_email_md.py b/example_project/test_django_templated_email_md.py
index e1f76a2..a5c1687 100644
--- a/example_project/test_django_templated_email_md.py
+++ b/example_project/test_django_templated_email_md.py
@@ -1,7 +1,13 @@
 """Test cases for the django-templated-email-md package."""
 
-from django.apps import apps
+import pytest
 from django.conf import settings
+from django.core import mail
+from django.template import TemplateDoesNotExist
+from django.test import override_settings
+from templated_email import send_templated_mail
+
+from templated_email_md.backend import MarkdownTemplateBackend
 
 
 def test_succeeds() -> None:
@@ -14,6 +20,133 @@ def test_settings() -> None:
     assert settings.USE_TZ is True
 
 
-def test_apps() -> None:
-    """Test that the app is configured in the Django project."""
-    assert "templated_email_md" in apps.get_app_config("templated_email_md").name
+@pytest.fixture
+def backend():
+    """Create a MarkdownTemplateBackend instance."""
+    return MarkdownTemplateBackend()
+
+
+def test_markdown_conversion(backend):
+    """Test conversion of Markdown to HTML."""
+    response = backend._render_email("test_message", {"name": "Test User"})
+
+    assert "Hello Test User!" in response["html"]
+    assert "<h1" in response["html"]
+    assert "<strong" in response["html"]
+    assert "<ol" in response["html"]
+    assert 'href="http://example.com"' in response["html"]
+
+def test_plain_text_generation(backend):
+    """Test generation of plain text version."""
+    response = backend._render_email("test_message", {"name": "Test User"})
+
+    assert "Hello Test User!" in response["plain"]
+    assert "**" not in response["plain"]  # Markdown syntax should be converted
+    # assert "[A link](http://example.com)" not in response["plain"]  # May need to further adjust html2text configs
+    assert "http://example.com" in response["plain"]
+
+
+def test_css_inlining(backend):
+    """Test that CSS styles are properly inlined."""
+    response = backend._render_email("test_message", {"name": "Test User"})
+    # Check that any CSS from markdown_base.html has been inlined
+    assert 'style="' in response["html"]
+
+
+def test_template_inheritance(backend):
+    """Test that template inheritance works correctly."""
+    with pytest.raises(TemplateDoesNotExist):
+        # Should raise if referenced template doesn't exist
+        backend._render_email("non_existent_template", {})
+
+
+@override_settings(TEMPLATED_EMAIL_BACKEND='templated_email_md.backend.MarkdownTemplateBackend')
+def test_send_templated_mail():
+    """Test sending an email using the backend."""
+    send_templated_mail(
+        template_name="test_message",
+        from_email="from@example.com",
+        recipient_list=["to@example.com"],
+        context={"name": "Test User"},
+    )
+
+    # Check that the email was sent
+    assert len(mail.outbox) == 1
+    assert mail.outbox[0].subject == "Test Email"
+    assert "Hello Test User!" in mail.outbox[0].body
+
+
+def test_missing_subject_block(backend):
+    """Test handling of missing subject block."""
+    with pytest.raises(TemplateDoesNotExist):
+        # This will now raise TemplateDoesNotExist since we don't support inline templates
+        backend._render_email("non_existent", {})
+
+
+@pytest.mark.parametrize("context,expected", [
+    ({"name": "Test"}, "Test"),
+    ({"name": ""}, ""),
+    ({}, ""),  # Missing context variable
+])
+def test_context_handling(backend, context, expected):
+    """Test handling of different context scenarios."""
+    response = backend._render_email("test_message", context)
+    if expected:
+        assert f"Hello {expected}!" in response["html"]
+    else:
+        assert "Hello !" in response["html"]  # Template will render empty name
+
+
+def test_template_not_found(backend):
+    """Test handling of non-existent templates."""
+    with pytest.raises(TemplateDoesNotExist):
+        backend._render_email("non_existent_template", {})
+
+
+@override_settings(TEMPLATED_EMAIL_BACKEND='templated_email_md.backend.MarkdownTemplateBackend')
+def test_full_email_rendering():
+    """Test the complete email rendering process."""
+    send_templated_mail(
+        template_name="test_message",
+        from_email="from@example.com",
+        recipient_list=["to@example.com"],
+        context={"name": "Test User"},
+    )
+
+    assert len(mail.outbox) == 1
+    email = mail.outbox[0]
+
+    # Check all parts of the email
+    assert email.subject == "Test Email"
+    assert email.from_email == "from@example.com"
+    assert email.to == ["to@example.com"]
+
+    # Check both HTML and plain text content
+    assert "Hello Test User!" in email.body  # Plain text version
+    assert len(email.alternatives) == 1  # Should have HTML alternative
+    html_content = email.alternatives[0][0]
+    assert "<h1" in html_content
+    assert "<strong>bold</strong>" in html_content
+
+
+@override_settings(TEMPLATED_EMAIL_BACKEND='templated_email_md.backend.MarkdownTemplateBackend')
+def test_fail_silently():
+    """Test that fail_silently works as expected."""
+    backend = MarkdownTemplateBackend(fail_silently=True)
+
+    # Try to render a non-existent template
+    response = backend._render_email("non_existent_template", {})
+
+    # Should get a fallback response instead of an exception
+    assert "Email template rendering failed" in response["html"]
+    assert "Email template rendering failed" in response["plain"]
+    assert response["subject"] == "No Subject"
+
+
+def test_subject_from_context(backend):
+    """Test that subject can be overridden from context."""
+    response = backend._render_email(
+        "test_message",
+        {"name": "Test User", "subject": "Override Subject"}
+    )
+    assert response["subject"] == "Override Subject"