Validate OpenAPI spec

Author: MattiSG

setup.py

@@ -32,7 +32,8 @@
     'pytest-cov >= 2.6.1, < 3.0.0',
     'mypy >= 0.701, < 0.800',
     'openfisca-country-template >= 3.10.0, < 4.0.0',
-    'openfisca-extension-template >= 1.2.0rc0, < 2.0.0'
+    'openfisca-extension-template >= 1.2.0rc0, < 2.0.0',
+    'openapi-spec-validator >= 0.3.0',
     ] + api_requirements
 
 setup(

tests/web_api/test_spec.py

@@ -6,6 +6,8 @@
 import dpath
 from . import subject
 
+from openapi_spec_validator import validate_spec
+
 
 def assert_items_equal(x, y):
     assert sorted(x) == sorted(y)
@@ -55,3 +57,7 @@ def test_situation_definition():
 
 def test_host():
     assert 'http' not in body['host']
+
+
+def test_respects_spec():
+    validate_spec(body)