Clean up well-known routes/controllers (#1649)

* Add request spec for host meta route returning xml

* Add routing spec for xrd routes

* Update well-known routes

* Move webfinger and host-meta actions to their own controllers

spec/controllers/well_known/host_meta_controller_spec.rb

@@ -0,0 +1,13 @@
+require 'rails_helper'
+
+describe WellKnown::HostMetaController, type: :controller do
+  render_views
+
+  describe 'GET #show' do
+    it 'returns http success' do
+      get :show, format: :xml
+
+      expect(response).to have_http_status(:success)
+    end
+  end
+end

spec/controllers/well_known/webfinger_controller_spec.rb

@@ -0,0 +1,21 @@
+require 'rails_helper'
+
+describe WellKnown::WebfingerController, type: :controller do
+  render_views
+
+  describe 'GET #show' do
+    let(:alice) { Fabricate(:account, username: 'alice') }
+
+    it 'returns http success when account can be found' do
+      get :show, params: { resource: alice.to_webfinger_s }, format: :json
+
+      expect(response).to have_http_status(:success)
+    end
+
+    it 'returns http not found when account cannot be found' do
+      get :show, params: { resource: 'acct:not@existing.com' }, format: :json
+
+      expect(response).to have_http_status(:not_found)
+    end
+  end
+end

spec/controllers/xrd_controller_spec.rb

@@ -1,26 +0,0 @@
-require 'rails_helper'
-
-RSpec.describe XrdController, type: :controller do
-  render_views
-
-  describe 'GET #host_meta' do
-    it 'returns http success' do
-      get :host_meta
-      expect(response).to have_http_status(:success)
-    end
-  end
-
-  describe 'GET #webfinger' do
-    let(:alice) { Fabricate(:account, username: 'alice') }
-
-    it 'returns http success when account can be found' do
-      get :webfinger, params: { resource: alice.to_webfinger_s }, format: :json
-      expect(response).to have_http_status(:success)
-    end
-
-    it 'returns http not found when account cannot be found' do
-      get :webfinger, params: { resource: 'acct:not@existing.com' }, format: :json
-      expect(response).to have_http_status(:not_found)
-    end
-  end
-end

spec/requests/host_meta_request_spec.rb

@@ -0,0 +1,12 @@
+require "rails_helper"
+
+describe "The host_meta route" do
+  describe "requested without accepts headers" do
+    it "returns an xml response" do
+      get host_meta_url
+
+      expect(response).to have_http_status(:success)
+      expect(response.content_type).to eq "application/xrd+xml"
+    end
+  end
+end

spec/routing/well_known_routes_spec.rb

@@ -0,0 +1,15 @@
+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', format: 'json')
+  end
+end