Fix invoke_layered since api_method didn't declare :expects. Closes #4720. [Kevin Ballard <kevin@sb.org>, Kent Sibilev]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4497 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionwebservice/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Fix invoke_layered since api_method didn't declare :expects. Closes #4720. [Kevin Ballard <kevin@sb.org>, Kent Sibilev]
+
 * Replace alias method chaining with Module#alias_method_chain. [Marcel Molina Jr.]
 
 * Replace Ruby's deprecated append_features in favor of included. [Marcel Molina Jr.]

actionwebservice/lib/action_web_service/test_invoke.rb

@@ -52,7 +52,7 @@ module Test # :nodoc:
           end
           protocol.register_api(api)
           method = api.api_methods[api_method_name.to_sym]
-          raise ArgumentError, "wrong number of arguments for rpc call (#{args.length} for #{method.expects.length})" unless args.length == method.expects.length
+          raise ArgumentError, "wrong number of arguments for rpc call (#{args.length} for #{method.expects.length})" if method && method.expects && args.length != method.expects.length
           protocol.encode_request(public_method_name(service_name, api_method_name), args.dup, method.expects)
         end
 

actionwebservice/test/test_invoke_test.rb

@@ -2,6 +2,7 @@ require File.dirname(__FILE__) + '/abstract_unit'
 require 'action_web_service/test_invoke'
 
 class TestInvokeAPI < ActionWebService::API::Base
+  api_method :null
   api_method :add, :expects => [:int, :int], :returns => [:int]
 end
 
@@ -14,6 +15,9 @@ class TestInvokeService < ActionWebService::Base
     @invoked = true
     a + b
   end
+  
+  def null
+  end
 end
 
 class TestController < ActionController::Base
@@ -29,6 +33,9 @@ class TestInvokeDirectController < TestController
     @invoked = true
     @method_params[0] + @method_params[1]
   end
+
+  def null
+  end
 end
 
 class TestInvokeDelegatedController < TestController
@@ -97,4 +104,9 @@ class TestInvokeTest < Test::Unit::TestCase
     assert_raise(ArgumentError) { invoke :add, 1 }
   end
   
+  def test_with_no_parameters_declared
+    @controller = TestInvokeDirectController.new
+    assert_nil invoke(:null)
+  end
+  
 end