load nil is noop. use new? instead of new_resource?

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5006 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activeresource/lib/active_resource/base.rb

@@ -102,7 +102,7 @@ module ActiveResource
       @prefix_options = prefix_options
     end
 
-    def new_resource?
+    def new?
       id.nil?
     end
 
@@ -115,7 +115,7 @@ module ActiveResource
     end
     
     def save
-      new_resource? ? create : update
+      new? ? create : update
     end
 
     def destroy
@@ -134,6 +134,7 @@ module ActiveResource
     # Manually load attributes from a hash. Recursively loads collections of
     # resources.
     def load(attributes)
+      return self if attributes.nil?
       attributes.each do |key, value|
         @attributes[key.to_s] =
           case value

activeresource/test/base/load_test.rb

@@ -14,6 +14,12 @@ class BaseLoadTest < Test::Unit::TestCase
     @person = Person.new
   end
 
+  def test_load_nil
+    assert_nothing_raised do
+      assert_equal @person, @person.load(nil)
+    end
+  end
+
   def test_load_simple_hash
     assert_equal Hash.new, @person.attributes
     assert_equal @matz.stringify_keys, @person.load(@matz).attributes