Require the (soon-to-be) Rocky version of Horizon

... or at least the first published tarball which will lead to Rocky.
On the other side this means forcing the usage of mox as long as
there are tests that depends on it (the switch was already flipped
in Horizon, so it needs to be enabled here).

This allows us to depend on newer Horizon features, including changes
to the test suite that are useful for the mox removal effort.

Change-Id: Ibf95b642f49aee9b3165f46e0422ff6bf56e9391

lower-constraints.txt

@@ -28,7 +28,7 @@ flake8==2.5.5
 futurist==1.2.0
 greenlet==0.4.10
 hacking==0.12.0
-horizon==13.0.0
+horizon==14.0.0.0b1
 idna==2.6
 iso8601==0.1.11
 Jinja2==2.10

requirements.txt

@@ -16,4 +16,4 @@ python-novaclient>=9.1.0 # Apache-2.0
 python-saharaclient>=1.4.0 # Apache-2.0
 pytz>=2013.6 # MIT
 
-horizon>=13.0.0 # Apache-2.0
+horizon>=14.0.0.0b1 # Apache-2.0

sahara_dashboard/test/helpers.py

@@ -35,6 +35,7 @@ class SaharaTestsMixin(object):
 
 
 class TestCase(SaharaTestsMixin, helpers.TestCase):
+    use_mox = True
     pass
 
 
@@ -44,6 +45,8 @@ class BaseAdminViewTests(SaharaTestsMixin, helpers.TestCase):
 
 class SaharaAPITestCase(helpers.APITestCase):
 
+    use_mox = True
+
     def setUp(self):
         super(SaharaAPITestCase, self).setUp()