diff --git a/config/routes.rb b/config/routes.rb
index a20f927f7..1ec90392d 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -271,6 +271,12 @@ Rails.application.routes.draw do
     end
   end
 
+  # Legacy Danbooru 1 API endpoints
+  get "/tag/index.xml", :controller => "legacy", :action => "tags", :format => "xml"
+  get "/tag/index.json", :controller => "legacy", :action => "tags", :format => "json"
+  get "/post/index.xml", :controller => "legacy", :action => "posts", :format => "xml"
+  get "/post/index.json", :controller => "legacy", :action => "posts", :format => "json"
+
   # Legacy Danbooru 1 redirects.
   get "/artist" => redirect {|params, req| "/artists?page=#{req.params[:page]}&search[name]=#{CGI.escape(req.params[:name].to_s)}"}
   get "/artist/show/:id" => redirect("/artists/%{id}")
@@ -294,12 +300,6 @@ Rails.application.routes.draw do
   get "/wiki/show" => redirect {|params, req| "/wiki_pages?title=#{CGI.escape(req.params[:title].to_s)}"}
   get "/help/:title" => redirect {|params, req| "/wiki_pages?title=#{CGI.escape('help:' + req.params[:title])}"}
 
-  # Legacy Danbooru 1 API endpoints
-  get "/tag/index.xml", :controller => "legacy", :action => "tags", :format => "xml"
-  get "/tag/index.json", :controller => "legacy", :action => "tags", :format => "json"
-  get "/post/index.xml", :controller => "legacy", :action => "posts", :format => "xml"
-  get "/post/index.json", :controller => "legacy", :action => "posts", :format => "json"
-
   get "/login", to: "sessions#new", as: :login
   get "/logout", to: "sessions#sign_out", as: :logout
   get "/profile", to: "users#profile", as: :profile
diff --git a/test/functional/legacy_controller_test.rb b/test/functional/legacy_controller_test.rb
new file mode 100644
index 000000000..c4b591b70
--- /dev/null
+++ b/test/functional/legacy_controller_test.rb
@@ -0,0 +1,25 @@
+require 'test_helper'
+
+class LegacyControllerTest < ActionDispatch::IntegrationTest
+  context "The legacy controller" do
+    context "post action" do
+      should "work" do
+        get "/post/index.xml"
+        assert_response :success
+
+        get "/post/index.json"
+        assert_response :success
+      end
+    end
+
+    context "tag action" do
+      should "work" do
+        get "/tag/index.xml"
+        assert_response :success
+
+        get "/tag/index.json"
+        assert_response :success
+      end
+    end
+  end
+end