Add Docker-executed pytest suite with >90% coverage

apps/blog/tests/test_feeds_more.py

@@ -0,0 +1,18 @@
+import pytest
+
+from apps.blog.feeds import AllArticlesFeed
+
+
+@pytest.mark.django_db
+def test_all_feed_methods(article_page):
+    feed = AllArticlesFeed()
+    assert feed.item_title(article_page) == article_page.title
+    assert article_page.summary in feed.item_description(article_page)
+    assert article_page.author.name == feed.item_author_name(article_page)
+    assert feed.item_link(article_page).startswith("http")
+
+
+@pytest.mark.django_db
+def test_tag_feed_not_found(client):
+    resp = client.get("/feed/tag/does-not-exist/")
+    assert resp.status_code == 404