1 files changed, 48 insertions, 0 deletions
diff --git a/actionmailer/test/quoting_test.rb b/actionmailer/test/quoting_test.rb
new file mode 100644
index 0000000000..6291cd3db6
--- /dev/null
+++ b/actionmailer/test/quoting_test.rb
@@ -0,0 +1,48 @@
+$:.unshift(File.dirname(__FILE__) + "/../lib/")
+$:.unshift(File.dirname(__FILE__) + "/../lib/action_mailer/vendor")
+
+require 'test/unit'
+require 'tmail'
+require 'tempfile'
+
+class QuotingTest < Test::Unit::TestCase
+  def test_quote_multibyte_chars
+    original = "\303\246 \303\270 and \303\245"
+
+    result = execute_in_sandbox(<<-CODE)
+      $:.unshift(File.dirname(__FILE__) + "/../lib/")
+      $KCODE = 'u'
+      require 'jcode'
+      require 'action_mailer/quoting'
+      include ActionMailer::Quoting
+      quoted_printable(#{original.inspect}, "UTF-8")
+    CODE
+
+    unquoted = TMail::Unquoter.unquote_and_convert_to(result, nil)
+    assert_equal unquoted, original
+  end
+
+  private
+
+    # This whole thing *could* be much simpler, but I don't think Tempfile,
+    # popen and others exist on all platforms (like Windows).
+    def execute_in_sandbox(code)
+      test_name = "#{File.dirname(__FILE__)}/am-quoting-test.#{$$}.rb"
+      res_name = "#{File.dirname(__FILE__)}/am-quoting-test.#{$$}.out"
+
+      File.open(test_name, "w+") do |file|
+        file.write(<<-CODE)
+          block = Proc.new do
+            #{code}
+          end
+          puts block.call
+        CODE
+      end
+
+      system("ruby #{test_name} > #{res_name}") or raise "could not run test in sandbox"
+      File.read(res_name)
+    ensure
+      File.delete(test_name) rescue nil
+      File.delete(res_name) rescue nil
+    end
+end