Index: lib/rake/testtask.rb
===================================================================
--- lib/rake/testtask.rb	(revision 642)
+++ lib/rake/testtask.rb	(working copy)
@@ -69,6 +69,12 @@
     # Array of commandline options to pass to ruby when running test loader.
     attr_accessor :ruby_opts
 
+    # Proc to be executed when the Ruby process running the tests finishes.
+    # The Proc will be passed two parameters: ok, status
+    # ok is a boolean indicating whether the Ruby process executed successfully
+    # status is the correponding Process::Status object for the Ruby process
+    attr_accessor :on_result
+
     # Explicitly define the list of test files to be included in a
     # test.  +list+ is expected to be an array of file names (a
     # FileList is acceptable).  If both +pattern+ and +test_files+ are
@@ -88,6 +94,7 @@
       @warning = false
       @loader = :rake
       @ruby_opts = []
+      @on_result = nil
       yield self if block_given?
       @pattern = 'test/test*.rb' if @pattern.nil? && @test_files.nil?
       define
@@ -114,7 +121,7 @@
           ruby @ruby_opts.join(" ") +
             " \"#{run_code}\" " +
             file_list.collect { |fn| "\"#{fn}\"" }.join(' ') +
-            " #{option_list}"
+            " #{option_list}", &@on_result
         end
       end
       self