Tox: Add checker for CSIT model version

+ Implementation stub so checker can check already.
+ Also add documentation stub for the implemented model.
+ Checker checks also for bumps in documentation version.
- Not comparing implementation and documentation version yet.

Change-Id: I4d19c00315a1c171de325c4494c28f5210635f32
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

2 files changed, 19 insertions, 0 deletions

diff --git a/resources/libraries/python/Constants.py b/resources/libraries/python/Constants.py
index c14ba31c57..f44c6ad95a 100644
--- a/resources/libraries/python/Constants.py
+++ b/resources/libraries/python/Constants.py
@@ -119,6 +119,9 @@ def get_optimistic_bool_from_env(env_var_names):
 class Constants:
     """Constants used in CSIT."""
 
+    # Version for CSIT data model. See docs/model/.
+    MODEL_VERSION = u"0.1.0"
+
     # OpenVPP testing directory location at topology nodes
     REMOTE_FW_DIR = u"/tmp/openvpp-testing"
 
diff --git a/resources/libraries/python/model/__init__.py b/resources/libraries/python/model/__init__.py
new file mode 100644
index 0000000000..36e32b89c4
--- /dev/null
+++ b/resources/libraries/python/model/__init__.py
@@ -0,0 +1,16 @@
+# Copyright (c) 2021 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+__init__ file for directory resources/libraries/python/model
+"""