Adding route tests

Removing status code from 404 title

Removing status code from 503 title

Adding id to 503 error box

Indatation fix

aurweb/routers/html.py

@@ -4,7 +4,7 @@ own modules and imported here. """
 from http import HTTPStatus
 from urllib.parse import unquote
 
-from fastapi import APIRouter, Form, Request
+from fastapi import APIRouter, Form, Request, HTTPException
 from fastapi.responses import HTMLResponse, RedirectResponse
 
 from aurweb.templates import make_context, render_template
@@ -48,3 +48,9 @@ async def index(request: Request):
     """ Homepage route. """
     context = make_context(request, "Home")
     return render_template("index.html", context)
+
+
+# A route that returns a error 503. For testing purposes.
+@router.get("/raisefivethree", response_class=HTMLResponse)
+async def raise_service_unavailable(request: Request):
+    raise HTTPException(status_code=503)