Ensuring the exception handler for the image detail page works.

Change-Id: Ia39f1c48f89a0798e832f267dd35103c77f707c7

horizon/dashboards/nova/images_and_snapshots/images/tests.py

@@ -20,12 +20,16 @@
 
 from django import http
 from django.core.urlresolvers import reverse
-from keystoneclient import exceptions as keystone_exceptions
-from mox import IgnoreArg, IsA
+
+from glance.common import exception as glance_exception
 
 from horizon import api
 from horizon import test
 
+from keystoneclient import exceptions as keystone_exceptions
+
+from mox import IgnoreArg, IsA
+
 
 IMAGES_INDEX_URL = reverse('horizon:nova:images_and_snapshots:index')
 
@@ -219,8 +223,20 @@ class ImageViewTests(test.TestCase):
         self.mox.ReplayAll()
 
         res = self.client.get(
-        reverse('horizon:nova:images_and_snapshots:images:detail',
+                reverse('horizon:nova:images_and_snapshots:images:detail',
                 args=[image.id]))
         self.assertTemplateUsed(res,
                                 'nova/images_and_snapshots/images/detail.html')
         self.assertEqual(res.context['image'].name, image.name)
+
+    def test_image_detail_get_with_exception(self):
+        image = self.images.first()
+        self.mox.StubOutWithMock(api.glance, 'image_get_meta')
+        api.glance.image_get_meta(IsA(http.HttpRequest), str(image.id)) \
+                                 .AndRaise(glance_exception.NotFound)
+        self.mox.ReplayAll()
+
+        res = self.client.get(
+                reverse('horizon:nova:images_and_snapshots:images:detail',
+                args=[image.id]))
+        self.assertRedirectsNoFollow(res, IMAGES_INDEX_URL)

horizon/dashboards/nova/images_and_snapshots/images/views.py

@@ -23,8 +23,6 @@ Views for managing Nova images.
 """
 
 import logging
-
-from django import shortcuts
 from django.core.urlresolvers import reverse
 from django.utils.translation import ugettext as _
 
@@ -180,8 +178,8 @@ class DetailView(views.APIView):
         try:
             image = api.glance.image_get_meta(self.request, kwargs['image_id'])
         except:
+            redirect = reverse('horizon:nova:images_and_snapshots:index')
             exceptions.handle(request, _('Unable to retrieve details for '
                                          'instance "%s".') % image_id,
                                                              redirect=redirect)
-            shortcuts.redirect('horizon:nova:images_and_snapshots:index')
         return {'image': image}