Add sub-app to generate open api spec

tests/test_validation_body.py

@@ -10,43 +10,50 @@ class ArticleModel(BaseModel):
 
 
 class ArticleView(PydanticView):
-
     async def post(self, article: ArticleModel):
         return web.json_response(article.dict())
 
 
-async def test_post_an_article_without_required_field_should_return_an_error_message(aiohttp_client, loop):
+async def test_post_an_article_without_required_field_should_return_an_error_message(
+    aiohttp_client, loop
+):
     app = web.Application()
-    app.router.add_view('/article', ArticleView)
+    app.router.add_view("/article", ArticleView)
 
     client = await aiohttp_client(app)
-    resp = await client.post('/article', json={})
+    resp = await client.post("/article", json={})
     assert resp.status == 400
-    assert resp.content_type == 'application/json'
-    assert await resp.json() == [{'loc': ['name'],
-                                  'msg': 'field required',
-                                  'type': 'value_error.missing'}]
+    assert resp.content_type == "application/json"
+    assert await resp.json() == [
+        {"loc": ["name"], "msg": "field required", "type": "value_error.missing"}
+    ]
 
 
-async def test_post_an_article_with_wrong_type_field_should_return_an_error_message(aiohttp_client, loop):
+async def test_post_an_article_with_wrong_type_field_should_return_an_error_message(
+    aiohttp_client, loop
+):
     app = web.Application()
-    app.router.add_view('/article', ArticleView)
+    app.router.add_view("/article", ArticleView)
 
     client = await aiohttp_client(app)
-    resp = await client.post('/article', json={'name': 'foo', 'nb_page': 'foo'})
+    resp = await client.post("/article", json={"name": "foo", "nb_page": "foo"})
     assert resp.status == 400
-    assert resp.content_type == 'application/json'
-    assert await resp.json() == [{'loc': ['nb_page'],
-                                  'msg': 'value is not a valid integer',
-                                  'type': 'type_error.integer'}]
+    assert resp.content_type == "application/json"
+    assert await resp.json() == [
+        {
+            "loc": ["nb_page"],
+            "msg": "value is not a valid integer",
+            "type": "type_error.integer",
+        }
+    ]
 
 
 async def test_post_a_valid_article_should_return_the_parsed_type(aiohttp_client, loop):
     app = web.Application()
-    app.router.add_view('/article', ArticleView)
+    app.router.add_view("/article", ArticleView)
 
     client = await aiohttp_client(app)
-    resp = await client.post('/article', json={'name': 'foo', 'nb_page': 3})
+    resp = await client.post("/article", json={"name": "foo", "nb_page": 3})
     assert resp.status == 200
-    assert resp.content_type == 'application/json'
-    assert await resp.json() == {'name': 'foo', 'nb_page': 3}
+    assert resp.content_type == "application/json"
+    assert await resp.json() == {"name": "foo", "nb_page": 3}