Abort w/ 400 is view is not found

src/humulus/recipes.py

@@ -17,7 +17,8 @@
 import json
 from decimal import Decimal
 
-from flask import (Blueprint, flash, redirect, render_template, jsonify,
+import requests
+from flask import (abort, Blueprint, flash, redirect, render_template, jsonify,
                    request, url_for)
 from flask_wtf import FlaskForm
 from flask_wtf.file import FileField, FileRequired
@@ -262,11 +263,16 @@ def index():
         ['true', 'yes']
     )
     sort_by = request.args.get('sort_by', default='name', type=str)
+
     view = get_view('_design/recipes', 'by-{}'.format(sort_by))
+    try:
+        rows = view(include_docs=True, descending=descending)['rows']
+    except requests.exceptions.HTTPError:
+        abort(400)
 
     return render_template(
         'recipes/index.html',
-        rows=view(include_docs=True, descending=descending)['rows'],
+        rows=rows,
         descending=descending,
         sort_by=sort_by
     )

tests/test_recipes.py

@@ -22,6 +22,10 @@ from humulus.recipes import FermentableForm, HopForm, RecipeForm, YeastForm
 
 def test_index(client):
     """Test success in retrieving index."""
+    # Test for bad request
+    response = client.get('/recipes/?sort_by=foobar')
+    assert response.status_code == 400
+
     # Verify defaults
     response = client.get('/recipes/')
     assert response.status_code == 200