graphene-django/graphene_django/utils/testing.py
Noelle Leigh dc5c971498
Switch operation_name to operationName in GraphQLTestCase (#936)
* Add op_name test

* Replace "operation_name" with "operationName"

* Improve test comments

* Add method for Python 2.7
2020-04-19 21:11:33 +01:00

86 lines
3.1 KiB
Python

import json
from django.test import TestCase, Client
class GraphQLTestCase(TestCase):
"""
Based on: https://www.sam.today/blog/testing-graphql-with-graphene-django/
"""
# URL to graphql endpoint
GRAPHQL_URL = "/graphql/"
# Here you need to set your graphql schema for the tests
GRAPHQL_SCHEMA = None
@classmethod
def setUpClass(cls):
super(GraphQLTestCase, cls).setUpClass()
if not cls.GRAPHQL_SCHEMA:
raise AttributeError(
"Variable GRAPHQL_SCHEMA not defined in GraphQLTestCase."
)
cls._client = Client()
def query(self, query, op_name=None, input_data=None, variables=None, headers=None):
"""
Args:
query (string) - GraphQL query to run
op_name (string) - If the query is a mutation or named query, you must
supply the op_name. For annon queries ("{ ... }"),
should be None (default).
input_data (dict) - If provided, the $input variable in GraphQL will be set
to this value. If both ``input_data`` and ``variables``,
are provided, the ``input`` field in the ``variables``
dict will be overwritten with this value.
variables (dict) - If provided, the "variables" field in GraphQL will be
set to this value.
headers (dict) - If provided, the headers in POST request to GRAPHQL_URL
will be set to this value.
Returns:
Response object from client
"""
body = {"query": query}
if op_name:
body["operationName"] = op_name
if variables:
body["variables"] = variables
if input_data:
if variables in body:
body["variables"]["input"] = input_data
else:
body["variables"] = {"input": input_data}
if headers:
resp = self._client.post(
self.GRAPHQL_URL,
json.dumps(body),
content_type="application/json",
**headers
)
else:
resp = self._client.post(
self.GRAPHQL_URL, json.dumps(body), content_type="application/json"
)
return resp
def assertResponseNoErrors(self, resp):
"""
Assert that the call went through correctly. 200 means the syntax is ok, if there are no `errors`,
the call was fine.
:resp HttpResponse: Response
"""
self.assertEqual(resp.status_code, 200)
content = json.loads(resp.content)
self.assertNotIn("errors", list(content.keys()))
def assertResponseHasErrors(self, resp):
"""
Assert that the call was failing. Take care: Even with errors, GraphQL returns status 200!
:resp HttpResponse: Response
"""
content = json.loads(resp.content)
self.assertIn("errors", list(content.keys()))