provide a more explicit message when using url_for with nil

This fixes the problem of having a non-explicit message when the :location option is not provided in respond_with.

2 files changed, 15 insertions, 0 deletions

diff --git a/actionpack/test/activerecord/polymorphic_routes_test.rb b/actionpack/test/activerecord/polymorphic_routes_test.rb
index f9e47d5118..20d11377f6 100644
--- a/actionpack/test/activerecord/polymorphic_routes_test.rb
+++ b/actionpack/test/activerecord/polymorphic_routes_test.rb
@@ -87,6 +87,14 @@ class PolymorphicRoutesTest < ActionController::TestCase
     end
   end
 
+  def test_with_nil
+    with_test_routes do
+      assert_raise ArgumentError, "Nil location provided. Can't build URI." do
+        polymorphic_url(nil)
+      end
+    end
+  end
+
   def test_with_record
     with_test_routes do
       @project.save
diff --git a/actionpack/test/controller/mime_responds_test.rb b/actionpack/test/controller/mime_responds_test.rb
index 288682aa07..afb2d39955 100644
--- a/actionpack/test/controller/mime_responds_test.rb
+++ b/actionpack/test/controller/mime_responds_test.rb
@@ -659,6 +659,13 @@ class RespondWithControllerTest < ActionController::TestCase
     assert_equal %Q[{"result":{"name":"david","id":13}}], @response.body
   end
 
+  def test_using_hash_resource_with_post
+    @request.accept = "application/json"
+    assert_raise ArgumentError, "Nil location provided. Can't build URI." do
+      post :using_hash_resource
+    end
+  end
+
   def test_using_resource_with_block
     @request.accept = "*/*"
     get :using_resource_with_block