Add tests for documentation

This is for the 2017 Hackathon
napalm-automation/hackathon-2017#10

This commit validates that each Ansible module has a DOCUMENTATION
and an EXAMPLES variable. It also asserts that those variables are
properly formatted YAML strings.

.travis.yml

@@ -12,13 +12,15 @@ install:
     - pip install pylama
     - pip install napalm-base
     - pip install "ansible>=$ANSIBLE_VERSION.0,<$ANSIBLE_VERSION.99"
+    - pip install tox
 
 script:
     - pylama
     - cd tests
     - ./run_tests.sh
     - ./test_changelog.sh
     - cd ..
+    - tox
 
 deploy:
   provider: pypi

napalm_ansible/napalm_get_facts.py

@@ -68,17 +68,17 @@
         default: None
     ignore_notimplemented:
         description:
-          - Ignores NotImplementedError for filters which aren't supported by the driver. Returns
-            invalid filters in a list called: not_implemented
+          - "Ignores NotImplementedError for filters which aren't supported by the driver. Returns
+            invalid filters in a list called: not_implemented"
         required: False
         default: False
         choices: [True, False]
     filter:
         description:
-            - A list of facts to retreive from a device and provided though C(ansible_facts)
+            - "A list of facts to retreive from a device and provided though C(ansible_facts)
               The list of facts available are maintained at:
                   http://napalm.readthedocs.io/en/latest/support/
-              Note- not all getters are implemented on all supported device types
+              Note- not all getters are implemented on all supported device types"
         required: False
         default: ['facts']
     args:

napalm_ansible/napalm_install_config.py

@@ -86,7 +86,6 @@
         description:
           - If set to True, the entire configuration on the device will be replaced during the
             commit. If set to False, we will merge the new config with the existing one.
-            Default: False
         choices: [true,false]
         default: False
         required: False

napalm_ansible/napalm_parse_yang.py

@@ -48,7 +48,6 @@
 author: "David Barroso (@dbarrosop)"
 version_added: "0.0"
 short_description: "Parse native config/state from a file or device."
-"YANG obje
 description:
     - "Parse configuration/state from a file or device and returns a dict that"
     - "represents a valid YANG object."
@@ -94,16 +93,16 @@
         default: None
     file_path:
         description:
-          - Path to a file to load native config/state from.
+          - "Path to a file to load native config/state from.
             Note: Either file_path or data to connect to a device must be
               provided.
-            Note: file_path takes precedence over a live device
+            Note: file_path takes precedence over a live device"
         required: False
         defaut: None
     mode:
         description:
-          - Whether to parse config/state or both.
-            Note: `both` is not supported in combination with `file_path`.
+          - "Whether to parse config/state or both.
+            Note: `both` is not supported in combination with `file_path`."
         required: True
         choices: ['config', 'state', 'both']
 '''

tests/test_documentation.py

@@ -0,0 +1,24 @@
+import pytest
+import yaml
+from glob import glob
+from importlib import import_module
+
+module_files = glob('napalm_ansible/napalm_*.py')
+modules = [module.split('.')[0].replace('/', '.') for module in module_files]
+
+
+@pytest.fixture(params=modules)
+def ansible_module(request):
+    return request.param
+
+
+def test_module_documentation_exists(ansible_module):
+    module = import_module(ansible_module)
+    content = dir(module)
+    assert 'DOCUMENTATION' in content
+    assert 'EXAMPLES' in content
+
+
+def test_module_documentation_format(ansible_module):
+    module = import_module(ansible_module)
+    yaml.load(module.DOCUMENTATION)

tox.ini

@@ -0,0 +1,10 @@
+[tox]
+envlist = py27
+
+[testenv]
+deps = 
+    -rrequirements.txt
+    pytest
+    ansible
+commands =
+    py.test