Pass os_identity_api_version into functional tests

Add 'os_identity_api_version' to keystone_v3_conf_settings.
Deduplicate excessive _ironic_osc method.

Change-Id: I9b93ec8a299d3a69629bf294d23d1b1d9e23660e
Closes-Bug: #1646837

ironicclient/tests/functional/base.py

@@ -83,7 +83,8 @@ class FunctionalTestBase(base.ClientTestBase):
             conf_settings += ['os_auth_url', 'os_username',
                               'os_password', 'os_project_name']
             keystone_v3_conf_settings += ['os_user_domain_id',
-                                          'os_project_domain_id']
+                                          'os_project_domain_id',
+                                          'os_identity_api_version']
         else:
             conf_settings += ['os_auth_token', 'ironic_url']
 
@@ -126,11 +127,14 @@ class FunctionalTestBase(base.ClientTestBase):
         return base.execute(cmd, action, flags, params,
                             cli_dir=self.client.cli_dir)
 
-    def _ironic(self, action, flags='', params='', merge_stderr=False):
+    def _ironic(self, action, cmd='ironic', flags='', params='',
+                merge_stderr=False):
         """Execute ironic command for the given action.
 
         :param action: the cli command to run using Ironic
         :type action: string
+        :param cmd: the base of cli command to run
+        :type action: string
         :param flags: any optional cli flags to use
         :type flags: string
         :param params: any optional positional args to use
@@ -138,9 +142,15 @@ class FunctionalTestBase(base.ClientTestBase):
         :param merge_stderr: whether to merge stderr into the result
         :type merge_stderr: bool
         """
-        flags += ' --os-endpoint-type publicURL'
+        if cmd == 'openstack':
+            config = self._get_config()
+            id_api_version = config['os_identity_api_version']
+            flags += ' --os-identity-api-version {0}'.format(id_api_version)
+        else:
+            flags += ' --os-endpoint-type publicURL'
+
         if hasattr(self, 'os_auth_token'):
-            return self._cmd_no_auth('ironic', action, flags, params)
+            return self._cmd_no_auth(cmd, action, flags, params)
         else:
             for keystone_object in 'user', 'project':
                 domain_attr = 'os_%s_domain_id' % keystone_object
@@ -149,25 +159,8 @@ class FunctionalTestBase(base.ClientTestBase):
                         'ks_obj': keystone_object,
                         'value': getattr(self, domain_attr)
                     }
-            return self.client.cmd_with_auth('ironic',
+            return self.client.cmd_with_auth(
-                                             action, flags, params,
+                cmd, action, flags, params, merge_stderr=merge_stderr)
-                                             merge_stderr=merge_stderr)
-
-    def _ironic_osc(self, action, flags='', params='', merge_stderr=False):
-        """Execute baremetal commands via OpenStack Client."""
-        config = self._get_config()
-        id_api_version = config.get('functional', 'os_identity_api_version')
-        flags += ' --os-identity-api-version {0}'.format(id_api_version)
-
-        for keystone_object in 'user', 'project':
-            domain_attr = 'os_%s_domain_id' % keystone_object
-            if hasattr(self, domain_attr):
-                flags += ' --os-%(ks_obj)s-domain-id %(value)s' % {
-                    'ks_obj': keystone_object,
-                    'value': getattr(self, domain_attr)
-                }
-        return self.client.cmd_with_auth(
-            'openstack', action, flags, params, merge_stderr=merge_stderr)
 
     def ironic(self, action, flags='', params='', parse=True):
         """Return parsed list of dicts with basic item info.

ironicclient/tests/functional/osc/v1/base.py

@@ -21,7 +21,7 @@ from ironicclient.tests.functional import base
 class TestCase(base.FunctionalTestBase):
 
     def openstack(self, *args, **kwargs):
-        return self._ironic_osc(*args, **kwargs)
+        return self._ironic(cmd='openstack', *args, **kwargs)
 
     def get_opts(self, fields=None, output_format='json'):
         """Get options for OSC output fields format.

tools/run_functional.sh

@@ -16,7 +16,7 @@ cat <<END >$CONFIG_FILE
 [functional]
 api_version = 1
 os_auth_url=$OS_AUTH_URL
-os_identity_api_version = $OS_IDENTITY_API_VERSION
+os_identity_api_version=$OS_IDENTITY_API_VERSION
 os_username=$OS_USERNAME
 os_password=$OS_PASSWORD
 os_project_name=$OS_PROJECT_NAME