Add tests to check the home page contexts in each variant

These tests can function as smoke tests for the front page, and
check that the elements we expect are present in the context for
core, South Africa and Nigeria.  (These could be extended to check
that the values of those context variables are as expected, based
on the db data, but for the moment this is better than nothing.)

pombola/core/tests/test_views.py

@@ -1,7 +1,15 @@
 from django_webtest import WebTest
+from django.test import TestCase
 
 from pombola.core import models
 
+class HomeViewTest(TestCase):
+
+    def test_homepage_context(self):
+        response = self.client.get('/')
+        self.assertIn('featured_person', response.context)
+        self.assertIn('featured_persons', response.context)
+
 class PositionViewTest(WebTest):
     def tearDown(self):
         self.position.delete()

pombola/nigeria/tests.py

@@ -2,9 +2,22 @@
 import doctest
 from . import views
 
+from django.test import TestCase
+
+from nose.plugins.attrib import attr
+
 # Needed to run the doc tests in views.py
 
 def suite():
     suite = unittest.TestSuite()
     suite.addTest(doctest.DocTestSuite(views))
-    return suite
+    return suite
+
+@attr(country='nigeria')
+class HomeViewTest(TestCase):
+
+    def test_homepage_context(self):
+        response = self.client.get('/')
+        self.assertIn('featured_person', response.context)
+        self.assertIn('featured_persons', response.context)
+        self.assertIn('editable_content', response.context)

pombola/south_africa/tests.py

@@ -28,6 +28,15 @@
 
 from nose.plugins.attrib import attr
 
+@attr(country='south_africa')
+class HomeViewTest(TestCase):
+
+    def test_homepage_context(self):
+        response = self.client.get('/')
+        self.assertIn('featured_person', response.context)
+        self.assertIn('featured_persons', response.context)
+        self.assertIn('news_categories', response.context)
+
 @attr(country='south_africa')
 class ConstituencyOfficesTestCase(WebTest):
     def setUp(self):

run-tests

@@ -15,6 +15,7 @@ update_exit_code() {
 TEST_SETTINGS_MODULES=(
     'pombola.settings.tests'
     'pombola.settings.tests_kenya'
+    'pombola.settings.tests_nigeria'
     'pombola.settings.tests_south_africa'
 )