mastodon/spec/routing/well_known_routes_spec.rb

require 'rails_helper'

describe 'the host-meta route' do
  it 'routes to correct place with xml format' do
    expect(get('/.well-known/host-meta'))
      .to route_to('well_known/host_meta#show', format: 'xml')
  end
end

describe 'the webfinger route' do
  it 'routes to correct place with json format' do
    expect(get('/.well-known/webfinger'))
      .to route_to('well_known/webfinger#show')
  end
end