Generate unit test HTML reports

Currently we need to check unit test results by opening console.html.
HTML reports would be nice for this purpose.

Note that the infra CI post script stores '*nose_results.html',
so the filenames need to end with 'nose_results.html'.

--with-html-output option is not available for python 3. I am not sure
the reason at now, but I think it is worth enabling it for python 2.

Change-Id: Icea8d21d0cf93f99f577e6609e9ced166a55609a

.gitignore

@@ -15,6 +15,7 @@
 coverage.xml
 coverage-karma
 nosetests.xml
+*nose_results.html
 pep8.txt
 pylint.txt
 # Files created by releasenotes build

horizon/test/settings.py

@@ -19,6 +19,8 @@
 import os
 import socket
 
+import six
+
 from openstack_dashboard.utils import settings as settings_utils
 
 socket.setdefaulttimeout(1)
@@ -112,6 +114,11 @@ NOSE_ARGS = ['--nocapture',
              '--cover-package=horizon',
              '--cover-inclusive',
              '--all-modules']
+# TODO(amotoki): Need to investigate why --with-html-output
+# is unavailable in python3.
+if six.PY2:
+    NOSE_ARGS += ['--with-html-output',
+                  '--html-out-file=ut_horizon_nose_results.html']
 
 EMAIL_BACKEND = 'django.core.mail.backends.locmem.EmailBackend'
 SESSION_ENGINE = 'django.contrib.sessions.backends.signed_cookies'

openstack_dashboard/test/settings.py

@@ -13,6 +13,8 @@
 import os
 import tempfile
 
+import six
+
 from django.utils.translation import pgettext_lazy
 from horizon.test.settings import *  # noqa
 from horizon.utils import secret_key
@@ -249,6 +251,11 @@ NOSE_ARGS = ['--nocapture',
              '--cover-package=openstack_dashboard',
              '--cover-inclusive',
              '--all-modules']
+# TODO(amotoki): Need to investigate why --with-html-output
+# is unavailable in python3.
+if six.PY2:
+    NOSE_ARGS += ['--with-html-output',
+                  '--html-out-file=ut_openstack_dashboard_nose_results.html']
 
 POLICY_FILES_PATH = os.path.join(ROOT_PATH, "conf")
 POLICY_FILES = {