Mirror test layout, domcontentloaded waits, backup DB writes outside threads

tests/api/posts.py

@@ -0,0 +1,9 @@
+# retoor <retoor@molodetz.nl>
+
+
+def test_post_page(anon):
+    posts = anon.get("/rol", headers={"Accept": "application/json"}).json()["posts"]
+    post = next(post for post in posts if post["title"] == "Geen cursus.")
+    response = anon.get(f"/posts/{post['slug']}")
+    assert response.status_code == 200
+    assert "Placeholder" in response.text