add test with passing additional aiohttp parameters, remove potential headers key conflict in passing arguments

Author: Tom1204

python_graphql_client/graphql_client.py

@@ -72,8 +72,7 @@ async def execute_async(
             async with session.post(
                 self.endpoint,
                 json=request_body,
-                headers={**self.headers, **headers},
-                **{**self.options, **kwargs},
+                **{**self.options, **kwargs, "headers": {**self.headers, **headers}},
             ) as response:
                 return await response.json()
 

tests/test_graphql_client.py

@@ -171,6 +171,34 @@ async def test_execute_basic_query(self, mock_post):
             "http://www.test-api.com/", json={"query": query}, headers={}
         )
 
+    @patch("aiohttp.ClientSession.post")
+    async def test_execute_basic_query_with_aiohttp_parameters(self, mock_post):
+        """Sends a graphql POST request to an endpoint."""
+        mock_post.return_value.__aenter__.return_value.json = AsyncMock()
+        client = GraphqlClient(endpoint="http://www.test-api.com/")
+        query = """
+            {
+                tests {
+                    status
+                }
+            }
+            """
+
+        await client.execute_async(
+            query,
+            timeout=10,
+            verify_ssl=False,
+            headers={"Authorization": "Bearer token"},
+        )
+
+        mock_post.assert_called_once_with(
+            "http://www.test-api.com/",
+            json={"query": query},
+            headers={"Authorization": "Bearer token"},
+            timeout=10,
+            verify_ssl=False,
+        )
+
     @patch("aiohttp.ClientSession.post")
     async def test_execute_query_with_variables(self, mock_post):
         """Sends a graphql POST request with variables."""