Fix inspecting route redirections, closes #6369

This commit fixes route inspection in `rake routes`

Before:

  foo  /foo(.:format) :controller#:action"

After:

  foo  /foo(.:format)  Redirect (301)

2 files changed, 11 insertions, 2 deletions

diff --git a/railties/lib/rails/application/route_inspector.rb b/railties/lib/rails/application/route_inspector.rb
index 1e5ce67a58..845c54f416 100644
--- a/railties/lib/rails/application/route_inspector.rb
+++ b/railties/lib/rails/application/route_inspector.rb
@@ -16,7 +16,7 @@ module Rails
           class_name = app.class.name.to_s
           if class_name == "ActionDispatch::Routing::Mapper::Constraints"
             rack_app(app.app)
-          elsif class_name !~ /^ActionDispatch::Routing/
+          elsif class_name == "ActionDispatch::Routing::Redirect" || class_name !~ /^ActionDispatch::Routing/
             app
           end
         end
@@ -67,7 +67,7 @@ module Rails
         @engines = Hash.new
       end
 
-      def format all_routes, filter = nil
+      def format(all_routes, filter = nil)
         if filter
           all_routes = all_routes.select{ |route| route.defaults[:controller] == filter }
         end
diff --git a/railties/test/application/route_inspect_test.rb b/railties/test/application/route_inspect_test.rb
index 94871c3759..31af1ca6dc 100644
--- a/railties/test/application/route_inspect_test.rb
+++ b/railties/test/application/route_inspect_test.rb
@@ -152,5 +152,14 @@ module ApplicationTests
       assert_no_match(/RackApp/, output.first)
       assert_no_match(/\/sprockets/, output.first)
     end
+
+    def test_redirect
+      output = draw do
+        match '/foo' => redirect("/bar")
+        match '/foo2' => redirect("/bar", status: 307)
+      end
+      assert_equal " foo  /foo(.:format)  Redirect (301)", output[0]
+      assert_equal "foo2  /foo2(.:format) Redirect (307)", output[1]
+    end
   end
 end