Fixed example tests.

* test:clean task also deletes .expected.html files
* LinesOfCode encoder can deal with tokens that have no scanner.
  Tests were added for this.
* JSON encoder load rubygems if necessary.
* NEW :loc as an alias for :lines_of_code
* NEW Scanner methods marshal_dump, marshal_load
  FIXED Tokens dumping (failed while trying to dump @scanner)

1 files changed, 7 insertions, 4 deletions

diff --git a/sample/suite.rb b/sample/suite.rb
index c586697..fa24114 100644
--- a/sample/suite.rb
+++ b/sample/suite.rb
@@ -28,16 +28,19 @@ class CodeRaySuite < TestCase
         name = File.basename(input, ".rb")
         output = name + '.expected'
         code = File.open(input, 'rb') { |f| break f.read }
-
+        
         result = `ruby -wI../lib #{input}`
-
+        
+        diff = output.sub '.expected', '.diff'
+        File.delete diff if File.exist? diff
+        computed = output.sub '.expected', '.actual'
         if File.exist? output
           expected = File.read output
           ok = expected == result
-          computed = output.sub('.expected', '.actual')
           unless ok
             File.open(computed, 'w') { |f| f.write result }
-            print `diff #{output} #{computed}` if $DEBUG
+            `diff #{output} #{computed} > #{diff}` if $DEBUG
+            puts "Test failed; output written to #{diff}."
           end
           assert(ok, "Output error: #{computed} != #{output}") unless $DEBUG
         else