Add unit test for profile feature

The patch adds a new unit test for profile feature.
The patch also converts all overrides values read from
profile.yaml to string as this is the data type of overrides.

Change-Id: I795b9b900b6274e689ba64b9721fb63e49696dea

config_tempest/profile.py

@@ -33,6 +33,18 @@ def _convert_remove_append(options):
     return converted
 
 
+def _read_yaml_file(path):
+    """Read a .yaml file.
+
+    :param path: path to the profile.yaml file
+    :type path: string
+    :return: profile arguments
+    :rtype: dict
+    """
+    with open(path, 'r') as stream:
+        return yaml.load(stream)
+
+
 def read_profile_file(path):
     """Read python-tempestconf arguments from a .yaml file.
 
@@ -41,8 +53,7 @@ def read_profile_file(path):
     :return: profile arguments
     :rtype: dict
     """
-    with open(path, 'r') as stream:
-        profile_args = yaml.load(stream)
+    profile_args = _read_yaml_file(path)
     # convert overrides, to a list of tuples (s, k, v)
     overrides = []
     if 'overrides' in profile_args:
@@ -51,7 +62,7 @@ def read_profile_file(path):
             v = profile_args['overrides'][key]
             if isinstance(v, list):
                 v = ','.join(v)
-            overrides.append((s, k, v))
+            overrides.append((s, k, str(v)))
     profile_args['overrides'] = overrides
     # convert remove
     remove = []

config_tempest/tests/test_profile.py

@@ -13,6 +13,8 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import mock
+
 from config_tempest import profile
 from config_tempest.tests.base import BaseConfigTempestTest
 
@@ -30,3 +32,46 @@ class TestProfile(BaseConfigTempestTest):
         ]
         out_data = profile._convert_remove_append(in_data)
         self.assertItemsEqual(expected, out_data)
+
+    @mock.patch('config_tempest.profile._read_yaml_file')
+    def test_read_profile_file(self, mock_read_yaml):
+        profile_data = {
+            'create': True,
+            'overrides': {
+                'auth.use_dynamic_credentials': True
+            },
+            'append': {
+                'network-feature-enabled.api_extensions': 'ext',
+                'identity-feature-enabled.api_extensions': ['ext1', 'ext2'],
+                'compute-feature-enabled.api_extensions': 'ext3,ext4'
+            },
+            'remove': {
+                'network-feature-enabled.api_extensions': 'dvr',
+                'identity-feature-enabled.api_extensions': ['dvr1', 'dvr2'],
+                'compute-feature-enabled.api_extensions': 'dvr3,dvr4'
+            },
+            'network-id': 'network_id',
+            'out': './etc/tempest.conf'
+        }
+        mock_read_yaml.return_value = profile_data
+        ret_dict = profile.read_profile_file('path')
+        expected = {
+            'create': True,
+            'remove': [
+                'network-feature-enabled.api_extensions=dvr',
+                'identity-feature-enabled.api_extensions=dvr1,dvr2',
+                'compute-feature-enabled.api_extensions=dvr3,dvr4'
+            ],
+            'network-id': 'network_id',
+            'overrides': [('auth', 'use_dynamic_credentials', 'True')],
+            'append': [
+                'network-feature-enabled.api_extensions=ext',
+                'identity-feature-enabled.api_extensions=ext1,ext2',
+                'compute-feature-enabled.api_extensions=ext3,ext4'
+            ],
+            'out': './etc/tempest.conf'
+        }
+        for key in ['create', 'network-id', 'out']:
+            self.assertEqual(expected[key], ret_dict[key])
+        for key in ['remove', 'overrides', 'append']:
+            self.assertListEqual(sorted(expected[key]), sorted(ret_dict[key]))