1 files changed, 50 insertions, 0 deletions
diff --git a/lib/coderay/encoders/debug.rb b/lib/coderay/encoders/debug.rb
index 03d6876..4c680d3 100644
--- a/lib/coderay/encoders/debug.rb
+++ b/lib/coderay/encoders/debug.rb
@@ -1,3 +1,4 @@
+($:.unshift '../..'; require 'coderay') unless defined? CodeRay
 module CodeRay
 module Encoders
 
@@ -10,6 +11,8 @@ module Encoders
   # You cannot fully restore the tokens information from the
   # output, because consecutive :space tokens are merged.
   # Use Tokens#dump for caching purposes.
+  # 
+  # See also: Scanners::Debug
   class Debug < Encoder
 
     include Streamable
@@ -47,3 +50,50 @@ module Encoders
 
 end
 end
+
+if $0 == __FILE__
+  $VERBOSE = true
+  $: << File.join(File.dirname(__FILE__), '..')
+  eval DATA.read, nil, $0, __LINE__ + 4
+end
+
+__END__
+require 'test/unit'
+
+class DebugEncoderTest < Test::Unit::TestCase
+  
+  def test_creation
+    assert CodeRay::Encoders::Debug < CodeRay::Encoders::Encoder
+    debug = nil
+    assert_nothing_raised do
+      debug = CodeRay.encoder :debug
+    end
+    assert_kind_of CodeRay::Encoders::Encoder, debug
+  end
+  
+  TEST_INPUT = CodeRay::Tokens[
+    ['10', :integer],
+    ['(\\)', :operator],
+    [:open, :string],
+    ['test', :content],
+    [:close, :string],
+    [:begin_line, :test],
+    ["\n", :space],
+    ["\n  \t", :space],
+    ["   \n", :space],
+    ["[]", :method],
+    [:end_line, :test],
+  ]
+  TEST_OUTPUT = <<-'DEBUG'.chomp
+integer(10)operator((\\\))string<content(test)>test[
+
+  	   
+method([])]
+  DEBUG
+  
+  def test_filtering_text_tokens
+    assert_equal TEST_OUTPUT, CodeRay::Encoders::Debug.new.encode_tokens(TEST_INPUT)
+    assert_equal TEST_OUTPUT, TEST_INPUT.debug
+  end
+  
+end