Add group parameter feature

tests/test_validation_header.py

@@ -5,6 +5,7 @@ from enum import Enum
 from aiohttp import web
 
 from aiohttp_pydantic import PydanticView
+from aiohttp_pydantic.injectors import Group
 
 
 class JSONEncoder(json.JSONEncoder):
@@ -32,6 +33,31 @@ class ViewWithEnumType(PydanticView):
         return web.json_response({"format": format}, dumps=JSONEncoder().encode)
 
 
+class Signature(Group):
+    signature_expired: datetime
+    signature_scope: str = "read"
+
+    @property
+    def expired(self) -> datetime:
+        return self.signature_expired
+
+    @property
+    def scope(self) -> str:
+        return self.signature_scope
+
+
+class ArticleViewWithSignatureGroup(PydanticView):
+    async def get(
+        self,
+        *,
+        signature: Signature,
+    ):
+        return web.json_response(
+            {"expired": signature.expired, "scope": signature.scope},
+            dumps=JSONEncoder().encode,
+        )
+
+
 async def test_get_article_without_required_header_should_return_an_error_message(
     aiohttp_client, loop
 ):
@@ -134,3 +160,21 @@ async def test_correct_value_to_header_defined_with_str_enum(aiohttp_client, loo
     assert await resp.json() == {"format": "UMT"}
     assert resp.status == 200
     assert resp.content_type == "application/json"
+
+
+async def test_with_signature_group(aiohttp_client, loop):
+    app = web.Application()
+    app.router.add_view("/article", ArticleViewWithSignatureGroup)
+
+    client = await aiohttp_client(app)
+    resp = await client.get(
+        "/article",
+        headers={
+            "signature_expired": "2020-10-04T18:01:00",
+            "signature.scope": "write",
+        },
+    )
+
+    assert await resp.json() == {"expired": "2020-10-04T18:01:00", "scope": "read"}
+    assert resp.status == 200
+    assert resp.content_type == "application/json"