diff --git a/actionpack/test/controller/routing_test.rb b/actionpack/test/controller/routing_test.rb
index 93e94f0f487470d5d65f81cc30fea43da33b5d35..978c5aa7ac6955c1d20c6d1e66a488c789c9bede 100644
--- a/actionpack/test/controller/routing_test.rb
+++ b/actionpack/test/controller/routing_test.rb
@@ -908,12 +908,13 @@ def test_named_draw
     assert_equal set.routes.first, set.named_routes[:hello]
   end
 
-  def test_earlier_named_routes_take_precedence
-    set.draw do
-      get '/hello/world' => 'a#b', :as => 'hello'
-      get '/hello'       => 'a#b', :as => 'hello'
+  def test_duplicate_named_route_raises_rather_than_pick_precedence
+    assert_raise ArgumentError do
+      set.draw do
+        get '/hello/world' => 'a#b', :as => 'hello'
+        get '/hello'       => 'a#b', :as => 'hello'
+      end
     end
-    assert_equal set.routes.first, set.named_routes[:hello]
   end
 
   def setup_named_route_test
diff --git a/actionpack/test/dispatch/mount_test.rb b/actionpack/test/dispatch/mount_test.rb
index 3b008fdff0938425ea1e2c5ace73466c202559dc..e5e28c28be4c13457c0d0610f170d27e18fd2a21 100644
--- a/actionpack/test/dispatch/mount_test.rb
+++ b/actionpack/test/dispatch/mount_test.rb
@@ -21,7 +21,7 @@ def self.call(env)
     mount SprocketsApp, :at => "/sprockets"
     mount SprocketsApp => "/shorthand"
 
-    mount FakeEngine, :at => "/fakeengine"
+    mount FakeEngine, :at => "/fakeengine", :as => :fake
     mount FakeEngine, :at => "/getfake", :via => :get
 
     scope "/its_a" do