Minor clean-up

Author: Cito

gql/client.py

@@ -29,19 +29,21 @@ def __init__(
     ):
         assert not (
             type_def and introspection
-        ), "Can't provide introspection type definition at the same time"
+        ), "Cannot provide introspection type definition at the same time."
         if transport and fetch_schema_from_transport:
             assert (
                 not schema
-            ), "Can't fetch the schema from transport if is already provided"
+            ), "Cannot fetch the schema from transport if is already provided"
             introspection = transport.execute(parse(introspection_query)).data
         if introspection:
-            assert not schema, "Can't provide introspection and schema at the same time"
+            assert (
+                not schema
+            ), "Cannot provide introspection and schema at the same time."
             schema = build_client_schema(introspection)
         elif type_def:
             assert (
                 not schema
-            ), "Can't provide Type definition and schema at the same time"
+            ), "Cannot provide type definition and schema at the same time."
             type_def_ast = parse(type_def)
             schema = build_ast_schema(type_def_ast)
         elif schema and not transport:
@@ -61,7 +63,7 @@ def __init__(
     def validate(self, document):
         if not self.schema:
             raise Exception(
-                "Cannot validate locally the document, you need to pass a schema."
+                "Cannot validate the document locally, you need to pass a schema."
             )
         validation_errors = validate(self.schema, document)
         if validation_errors:

tests/test_transport.py

@@ -31,7 +31,7 @@ def client():
             URL, headers={"Host": "swapi.graphene-python.org", "Accept": "text/html"}
         )
         response.raise_for_status()
-        csrf = response.cookies.get("csrftoken")
+        csrf = response.cookies["csrftoken"]
         return Client(
             transport=RequestsHTTPTransport(
                 url=URL, cookies={"csrftoken": csrf}, headers={"x-csrftoken": csrf}
@@ -97,7 +97,7 @@ def test_query_with_variable(client):
     assert result == expected
 
 
-def test_planet_query_with_name(client):
+def test_named_query(client):
     query = gql(
         """
         query Planet1 {