Unit testing a delete endpoint causes ValueError: Invalid location argument: args

[starkgate]

I am trying to create a unit test for a DELETE endpoint. Here is simplified code:

app = Flask(__name__)
app.config.update({
    "TESTING": True,
})
api = Api(app)
api.add_resource(ObjectiveInterface, "/objectives")

client = app.test_client()
response = client.delete('/objectives?id=12') # also tried client.delete('/objectives', data={'id': '12'})

Which fails with the following error. I followed the guide here to write my test, and I believe the code is correct. Is this a bug with apispec or am I doing something wrong?

Error
Traceback (most recent call last):
  File "test_objective_interface.py", line 92, in test_delete
    response = self.client.delete('/objectives?id=12')
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "werkzeug\test.py", line 1156, in delete
    return self.open(*args, **kw)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "flask\testing.py", line 223, in open
    response = super().open(
               ^^^^^^^^^^^^^
  File "werkzeug\test.py", line 1095, in open
    response = self.run_wsgi_app(request.environ, buffered=buffered)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "werkzeug\test.py", line 962, in run_wsgi_app
    rv = run_wsgi_app(self.application, environ, buffered=buffered)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "werkzeug\test.py", line 1243, in run_wsgi_app
    app_rv = app(environ, start_response)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask\app.py", line 2551, in __call__
    return self.wsgi_app(environ, start_response)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask\app.py", line 2531, in wsgi_app
    response = self.handle_exception(e)
               ^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask_restful\__init__.py", line 271, in error_router
    return original_handler(e)
           ^^^^^^^^^^^^^^^^^^^
  File "flask_restful\__init__.py", line 268, in error_router
    return self.handle_error(e)
           ^^^^^^^^^^^^^^^^^^^^
  File "flask\app.py", line 2528, in wsgi_app
    response = self.full_dispatch_request()
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask\app.py", line 1825, in full_dispatch_request
    rv = self.handle_user_exception(e)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask_restful\__init__.py", line 271, in error_router
    return original_handler(e)
           ^^^^^^^^^^^^^^^^^^^
  File "flask_restful\__init__.py", line 268, in error_router
    return self.handle_error(e)
           ^^^^^^^^^^^^^^^^^^^^
  File "flask\app.py", line 1823, in full_dispatch_request
    rv = self.dispatch_request()
         ^^^^^^^^^^^^^^^^^^^^^^^
  File "flask\app.py", line 1799, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask_restful\__init__.py", line 467, in wrapper
    resp = resource(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask\views.py", line 107, in view
    return current_app.ensure_sync(self.dispatch_request)(**kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask\views.py", line 188, in dispatch_request
    return current_app.ensure_sync(meth)(**kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask_apispec\annotations.py", line 122, in wrapped
    return wrapper(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask_apispec\wrapper.py", line 29, in __call__
    response = self.call_view(*args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "flask_apispec\wrapper.py", line 44, in call_view
    parsed = parser.parse(schema, location=option['kwargs']['location'])
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "webargs\core.py", line 405, in parse
    location_data = self._load_location_data(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "webargs\core.py", line 210, in _load_location_data
    loader_func = self._get_loader(location)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "webargs\core.py", line 193, in _get_loader
    raise ValueError(f"Invalid location argument: {location}")
ValueError: Invalid location argument: args

Environment:

• Python version: 3.11
• Werkzeug version: 2.2.3
• Flask version: 2.2.3
• Flask restful: 0.3.9
• Flask apispec: 0.11.4