Avoid duplicated maintenance of integration test config

Configurations of the integration tests are maintained both
in horizon.conf and in-code configuration. It is redundant.

Configurations of the integration tests are defined by oslo.config.
We can use default values from them and generate a sample config file
using oslo-config-generator.

This commit drops horizon.conf and generates the sample config.
We no longer have horizon.conf, so the logic to load the config files
is updated accordingly.

Also makes the usage of single and double quotes in config.py consistent.

Change-Id: Id16c9fd4114316ade63c74097e486623d0c5be9f

5 files changed, 95 insertions, 56 deletions

diff --git a/.gitignore b/.gitignore
index ac94b58c8..b5a20a735 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,6 +25,7 @@ openstack_dashboard/local/*
 openstack_dashboard/local/local_settings.d/*
 !openstack_dashboard/local/local_settings.d/*.example
 openstack_dashboard/test/.secret_key_store
+openstack_dashboard/test/integration_tests/horizon.conf.sample
 openstack_dashboard/test/integration_tests/local-horizon.conf
 openstack_dashboard/test/integration_tests/test_reports/
 openstack_dashboard/wsgi/horizon.wsgi
diff --git a/openstack_dashboard/test/integration_tests/README.rst b/openstack_dashboard/test/integration_tests/README.rst
index ce3af8004..33968c7f1 100644
--- a/openstack_dashboard/test/integration_tests/README.rst
+++ b/openstack_dashboard/test/integration_tests/README.rst
@@ -8,8 +8,16 @@ Running the integration tests
 
 #. Set up an OpenStack server
 
-#. Update the configuration file at `horizon.conf` or add overrides
-   to that file in `local-horizon.conf` which is ignored by git.
+#. Prepare the configuration file at `local-horizon.conf` if you need
+   to change the default configurations.
+   Note that `horizon.conf` can be used for the same purpose too
+   from the historical reason.
+
+   You can generate a sample configuration file by the following command::
+
+      $ oslo-config-generator \
+            --namespace openstack_dashboard_integration_tests
+            --output-file openstack_dashboard/test/integration_tests/horizon.conf.sample
 
 #. Run the tests. ::
 
diff --git a/openstack_dashboard/test/integration_tests/config.py b/openstack_dashboard/test/integration_tests/config.py
index 379b8fc34..ee6eb0b41 100644
--- a/openstack_dashboard/test/integration_tests/config.py
+++ b/openstack_dashboard/test/integration_tests/config.py
@@ -18,45 +18,44 @@ from oslo_config import cfg
 DashboardGroup = [
     cfg.StrOpt('dashboard_url',
                default='http://localhost/dashboard/',
-               help="Where the dashboard can be found"),
+               help='Where the dashboard can be found'),
     cfg.StrOpt('help_url',
                default='https://docs.openstack.org/',
-               help="Dashboard help page url"),
+               help='Dashboard help page url'),
 ]
 
 IdentityGroup = [
     cfg.StrOpt('username',
                default='demo',
-               help="Username to use for non-admin API requests."),
+               help='Username to use for non-admin API requests.'),
     cfg.StrOpt('password',
                default='secretadmin',
-               help="API key to use when authenticating.",
+               help='API key to use when authenticating.',
                secret=True),
     cfg.StrOpt('domain',
                default=None,
-               help="Domain name to use if required for login"),
+               help='Domain name to use if required for login'),
     cfg.StrOpt('home_project',
                default='demo',
-               help="Project to keep all objects belonging to a regular user."
+               help='Project to keep all objects belonging to a regular user.'
                ),
     cfg.StrOpt('admin_username',
                default='admin',
-               help="Administrative Username to use for admin API "
-               "requests."),
+               help='Administrative Username to use for admin API requests.'),
     cfg.StrOpt('admin_password',
                default='secretadmin',
-               help="API key to use when authenticating as admin.",
+               help='API key to use when authenticating as admin.',
                secret=True),
     cfg.StrOpt('admin_home_project',
                default='admin',
-               help="Project to keep all objects belonging to an admin user."),
+               help='Project to keep all objects belonging to an admin user.'),
     cfg.StrOpt('default_keystone_role',
                default='member',
-               help="Name of default role every user gets in his new project"),
+               help='Name of default role every user gets in his new project.'),
     cfg.StrOpt('default_keystone_admin_role',
                default='admin',
-               help="Name of the role that grants admin rights to a user in "
-                    "his project"),
+               help=('Name of the role that grants admin rights to a user in '
+                     'his project')),
     cfg.IntOpt('unique_last_password_count',
                # The default value is chosen to match the value of
                # [security_compliance] unique_last_password_count in DevStack
@@ -65,10 +64,10 @@ IdentityGroup = [
                # in keystone may differ, so you might need
                # to change this parameter.
                default=2,
-               help=("The number of passwords for a user that must be unique "
-                     "before an old password can be used. "
-                     "This should match the keystone configuration option "
-                     "'[security_compliance] unique_last_password_count'.")),
+               help=('The number of passwords for a user that must be unique '
+                     'before an old password can be used. '
+                     'This should match the keystone configuration option '
+                     '"[security_compliance] unique_last_password_count".')),
 ]
 
 ImageGroup = [
@@ -98,28 +97,38 @@ NetworkGroup = [
 
 AvailableServiceGroup = [
     cfg.BoolOpt('neutron',
-                default=True),
+                default=True,
+                help='Whether neutron is expected to be available'),
 ]
 
 SeleniumGroup = [
-    cfg.FloatOpt('message_implicit_wait',
-                 default=0.1,
-                 help="Time to wait for confirmation modal in seconds"),
-    cfg.IntOpt('implicit_wait',
-               default=10,
-               help="Implicit wait timeout in seconds"),
-    cfg.IntOpt('explicit_wait',
-               default=90,
-               help="Explicit wait timeout in seconds"),
-    cfg.IntOpt('page_timeout',
-               default=60,
-               help="Page load timeout in seconds"),
-    cfg.StrOpt('screenshots_directory',
-               default="integration_tests_screenshots",
-               help="Output screenshot directory"),
-    cfg.BoolOpt('maximize_browser',
-                default=True,
-                help="Is the browser size maximized for each test?"),
+    cfg.FloatOpt(
+        'message_implicit_wait',
+        default=0.1,
+        help='Timeout in seconds to wait for message confirmation modal'),
+    cfg.IntOpt(
+        'implicit_wait',
+        default=10,
+        help=('Implicit timeout to wait until element become available, '
+              'It is used for every find_element, find_elements call.')),
+    cfg.IntOpt(
+        'explicit_wait',
+        default=90,
+        help=('Explicit timeout is used for long lasting operations, '
+              'Methods using explicit timeout are usually prefixed with '
+              '"wait"')),
+    cfg.IntOpt(
+        'page_timeout',
+        default=60,
+        help='Timeout in seconds to wait for a page to become available'),
+    cfg.StrOpt(
+        'screenshots_directory',
+        default='integration_tests_screenshots',
+        help='Output directory for screenshots'),
+    cfg.BoolOpt(
+        'maximize_browser',
+        default=True,
+        help='Maximize the browser window at the start of each test or not'),
 ]
 
 FlavorsGroup = [
@@ -137,13 +146,13 @@ ScenarioGroup = [
 InstancesGroup = [
     cfg.StrOpt('available_zone',
                default='nova',
-               help="Zone to be selected for launch Instances"),
+               help='Availability zone to be selected for launch instances'),
     cfg.StrOpt('image_name',
                default='cirros-0.4.0-x86_64-disk (12.1 MB)',
-               help="Boot Source to be selected for launch Instances"),
+               help='Boot Source to be selected for launch Instances'),
     cfg.StrOpt('flavor',
                default='m1.tiny',
-               help="Flavor to be selected for launch Instances"),
+               help='Flavor to be selected for launch instances'),
 ]
 
 VolumeGroup = [
@@ -156,14 +165,18 @@ VolumeGroup = [
 ]
 
 PluginGroup = [
-    cfg.BoolOpt('is_plugin',
-                default='False',
-                help="Set to true if this is a plugin"),
-    cfg.MultiStrOpt('plugin_page_path',
-                    default='',
-                    help='Additional path to look for plugin page content'),
-    cfg.MultiStrOpt('plugin_page_structure',
-                    default='')
+    cfg.BoolOpt(
+        'is_plugin',
+        default='False',
+        help='Set to true if this is a plugin'),
+    cfg.MultiStrOpt(
+        'plugin_page_path',
+        default='',
+        help='Additional path to look for plugin page content'),
+    cfg.MultiStrOpt(
+        'plugin_page_structure',
+        default='',
+        help=('JSON string to define the page structure for the plugin')),
 ]
 
 
@@ -172,13 +185,11 @@ def _get_config_files():
         os.path.abspath(os.path.dirname(os.path.dirname(__file__))),
         'integration_tests')
     conf_file = os.environ.get('HORIZON_INTEGRATION_TESTS_CONFIG_FILE',
-                               "%s/horizon.conf" % conf_dir)
-    config_files = [conf_file]
+                               '%s/horizon.conf' % conf_dir)
     local_config = os.environ.get('HORIZON_INTEGRATION_TESTS_LOCAL_CONFIG',
-                                  "%s/local-horizon.conf" % conf_dir)
-    if os.path.isfile(local_config):
-        config_files.append(local_config)
-    return config_files
+                                  '%s/local-horizon.conf' % conf_dir)
+    config_files = [conf_file, local_config]
+    return [f for f in config_files if os.path.isfile(f)]
 
 
 def get_config():
@@ -197,3 +208,19 @@ def get_config():
     cfg.CONF.register_opts(VolumeGroup, group="volume")
 
     return cfg.CONF
+
+
+def list_opts():
+    return [
+        ("dashboard", DashboardGroup),
+        ("selenium", SeleniumGroup),
+        ("flavors", FlavorsGroup),
+        ("image", ImageGroup),
+        ("identity", IdentityGroup),
+        ("network", NetworkGroup),
+        ("service_available", AvailableServiceGroup),
+        ("scenario", ScenarioGroup),
+        ("launch_instances", InstancesGroup),
+        ("plugin", PluginGroup),
+        ("volume", VolumeGroup),
+    ]
diff --git a/setup.cfg b/setup.cfg
index 0ed816195..003ea8323 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -54,6 +54,7 @@ add_comments = Translators:
 [entry_points]
 oslo.config.opts =
     openstack_dashboard = openstack_dashboard.utils.config:list_options
+    openstack_dashboard_integration_tests = openstack_dashboard.test.integration_tests.config:list_opts
 # We use a custom extractor to find translatable strings in AngularJS templates.
 # See http://babel.pocoo.org/docs/messages/#referencing-extraction-methods for
 # details on how this works.
diff --git a/tox.ini b/tox.ini
index 4bf1a423c..7e67d53c6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -88,7 +88,9 @@ setenv =
   PYTHONHASHSEED=0
   INTEGRATION_TESTS=1
   SELENIUM_HEADLESS=1
-commands = {envpython} {toxinidir}/manage.py test openstack_dashboard --settings=openstack_dashboard.test.settings --verbosity 2 --tag integration {posargs}
+commands =
+  oslo-config-generator --namespace openstack_dashboard_integration_tests
+  {envpython} {toxinidir}/manage.py test openstack_dashboard --settings=openstack_dashboard.test.settings --verbosity 2 --tag integration {posargs}
 
 [testenv:npm]
 passenv =