Don't raise test helper setup error when inertia: true is set but the renderer is never called

Author: bknoles

lib/inertia_rails/rspec.rb

@@ -49,7 +49,7 @@ def inertia_wrap_render(render)
       protected 
 
       def inertia_tests_setup?
-        @_inertia_render_wrapper.present?
+        ::RSpec.current_example.metadata.fetch(:inertia, false)
       end
     end
   end

spec/dummy/app/controllers/inertia_test_controller.rb

@@ -23,6 +23,10 @@ def inertia_partial_request_test
     end
   end
 
+  def non_inertiafied
+    render plain: 'hey'
+  end
+
   # Calling it my_location to avoid this in Rails 5.0
   # https://github.com/rails/rails/issues/28033
   def my_location

spec/dummy/config/routes.rb

@@ -24,6 +24,7 @@
   get 'error_500' => 'inertia_test#error_500'
   get 'content_type_test' => 'inertia_test#content_type_test'
   get 'lazy_props' => 'inertia_render_test#lazy_props'
+  get 'non_inertiafied' => 'inertia_test#non_inertiafied'
 
   inertia 'inertia_route' => 'TestComponent'
 end

spec/inertia/rspec_helper_spec.rb

@@ -54,4 +54,12 @@
       expect { expect_inertia }.to raise_error(/inertia: true/)
     end
   end
+
+  describe 'expecting inertia on a non inertia route', inertia: true do
+    before { get non_inertiafied_path }
+
+    it 'does not complain about test helpers' do
+      expect { expect_inertia }.not_to raise_error
+    end
+  end
 end