fix ArgumentError building routes on Rails 8.1

lib/jsonapi/routing_ext.rb

@@ -59,7 +59,7 @@ def jsonapi_resource(*resources, &_block)
               end
             else
               # Rails 5
-              jsonapi_resource_scope(SingletonResource.new(@resource_type, api_only?, @scope[:shallow], options), @resource_type) do
+              jsonapi_resource_scope(SingletonResource.new(@resource_type, api_only?, @scope[:shallow], **options), @resource_type) do
                 if block_given?
                   yield
                 else
@@ -133,7 +133,7 @@ def jsonapi_resources(*resources, &_block)
               end
             else
               # Rails 5
-              jsonapi_resource_scope(Resource.new(@resource_type, api_only?, @scope[:shallow], options), @resource_type) do
+              jsonapi_resource_scope(Resource.new(@resource_type, api_only?, @scope[:shallow], **options), @resource_type) do
                 if block_given?
                   yield
                 else

test/unit/routing_ext_test.rb

@@ -0,0 +1,34 @@
+require 'minitest/autorun'
+require 'active_support/all'
+require 'rails/railtie'
+require 'rails/version'
+
+# rails/test_help wants a booted Rails.application before it will even
+# load on current Rails, which this gem's own test_helper.rb can't give it
+# yet. jsonapi_resources itself doesn't need a booted app, just a RouteSet,
+# so this test builds the smallest environment that lets us draw routes
+# with it directly.
+module Rails
+  def self.env
+    ActiveSupport::StringInquirer.new('test')
+  end
+end
+
+require 'action_controller'
+require 'jsonapi-resources'
+
+class ExampleResource < JSONAPI::Resource
+end
+
+class RoutingExtTest < Minitest::Test
+  def test_jsonapi_resources_draws_routes
+    route_set = ActionDispatch::Routing::RouteSet.new
+    route_set.draw do
+      jsonapi_resources :examples
+    end
+
+    paths = route_set.routes.map { |r| r.path.spec.to_s }
+    assert_includes paths, '/examples(.:format)'
+    assert_includes paths, '/examples/:id(.:format)'
+  end
+end