Add spec for Marshal.load of #marshal_load object + symbol

Author: eregon

spec/ruby/core/marshal/fixtures/marshal_data.rb

@@ -83,7 +83,7 @@ class UserPreviouslyDefinedWithInitializedIvar
 end
 
 class UserMarshal
-  attr_reader :data
+  attr_accessor :data
 
   def initialize
     @data = 'stuff'

spec/ruby/core/marshal/shared/load.rb

@@ -309,7 +309,8 @@
 
     it "loads an extended Array object containing a user-marshaled object" do
       obj = [UserMarshal.new, UserMarshal.new].extend(Meths)
-      new_obj = Marshal.send(@method, "\x04\be:\nMeths[\ao:\x10UserMarshal\x06:\n@dataI\"\nstuff\x06:\x06ETo;\x06\x06;\aI\"\nstuff\x06;\bT")
+      dump = "\x04\be:\nMeths[\ao:\x10UserMarshal\x06:\n@dataI\"\nstuff\x06:\x06ETo;\x06\x06;\aI\"\nstuff\x06;\bT"
+      new_obj = Marshal.send(@method, dump)
 
       new_obj.should == obj
       obj_ancestors = class << obj; ancestors[1..-1]; end
@@ -609,6 +610,18 @@
     end
   end
 
+  describe "for an object responding to #marshal_dump and #marshal_load" do
+    it "loads a user-marshaled object" do
+      obj = UserMarshal.new
+      obj.data = :data
+      value = [obj, :data]
+      dump = Marshal.dump(value)
+      dump.should == "\x04\b[\aU:\x10UserMarshal:\tdata;\x06"
+      reloaded = Marshal.load(dump)
+      reloaded.should == value
+    end
+  end
+
   describe "for a user object" do
     it "loads a user-marshaled extended object" do
       obj = UserMarshal.new.extend(Meths)