add delete

[michaelglass]

migrates these helpers out of our rails monolith

[michaelglass]

I ... don't really know how to test this.

[mfonism]

Does something like this look good?

it "can set authenticity token for the request" do
  test_request = nil

  Module.new do
    extend RailsEdgeTest::Dsl

    controller MyController do
      action :simple do
        edge "set the authenticity token" do
          test_request = request

          set_authenticity_token
        end
      end
    end
  end

  allow_any_instance_of(MyController).to receive(:form_authenticity_token).and_return('a_test_token')
  RailsEdgeTest::Dsl.execute!

  expect(test_request.headers['X-CSRF-Token']).to eq 'a_test_token'
end

[mfonism]

This looks good to go.

I've added a suggestion which I hope works for testing.

Feel free to merge whenever.