Add (very) basic tests for "pages" view + fix bad URL

templates/404.html

@@ -3,5 +3,5 @@
 {% block main %}
   <h1>Page Not Found</h1>
   <p>What you were looking for is just not there.
-  <p><a href="{{ url_for('index') }}">go somewhere nice</a>
+  <p><a href="{{ url_for('pages') }}">go somewhere nice</a>
 {% endblock main %}

tests/test_views.py

@@ -0,0 +1,38 @@
+from functools import partial
+
+import pytest
+from flask import url_for
+
+import afpy
+
+
+@pytest.fixture(autouse=True)
+def app():
+    return afpy.app
+
+
+class TestPagesView:
+    get_test_url = partial(url_for, 'pages')
+
+    def test_no_arguments(self, client):
+        response = client.get(self.get_test_url())
+
+        assert response.status_code == 200
+
+    @pytest.mark.parametrize(
+        'template_name',
+        [
+            'a-propos',
+            'feed',
+            'rst',
+        ]
+    )
+    def test_with_arguments(self, client, template_name):
+        response = client.get(self.get_test_url(template_name=template_name))
+
+        assert response.status_code == 200
+
+    def test_404(self, client):
+        response = client.get(self.get_test_url(template_name="bad_template_name_my_friend"))
+
+        assert response.status_code == 404