* lib/rexml/source.rb: force_encoding("UTF-8") when the input

  is already UTF-8. patched by Kouhei Sutou [ruby-core:23404]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27342 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 14 insertions, 0 deletions

diff --git a/test/rexml/test_document.rb b/test/rexml/test_document.rb
index 1ee1a1d414..ab0b1e4e96 100644
--- a/test/rexml/test_document.rb
+++ b/test/rexml/test_document.rb
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 require "rexml/document"
 require "test/unit"
 
@@ -83,6 +85,18 @@ EOF
     REXML::Document.entity_expansion_limit = 10000
   end
 
+  def test_tag_in_cdata_with_not_ascii_only_but_ascii8bit_encoding_source
+    tag = "<b>...</b>"
+    message = "こんにちは、世界！" # Hello world! in Japanese
+    xml = <<EOX
+<?xml version="1.0" encoding="UTF-8"?>
+<message><![CDATA[#{tag}#{message}]]></message>
+EOX
+    xml.force_encoding(Encoding::ASCII_8BIT)
+    doc = REXML::Document.new(xml)
+    assert_equal("#{tag}#{message}", doc.root.children.first.value)
+  end
+
   def test_xml_declaration_standalone
     bug2539 = '[ruby-core:27345]'
     doc = REXML::Document.new('<?xml version="1.0" standalone="no" ?>')