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diff --git a/lib/mcollective/vendor/json/tests/test_json_encoding.rb b/lib/mcollective/vendor/json/tests/test_json_encoding.rb
new file mode 100644
index 0000000..7af5e63
--- /dev/null
+++ b/lib/mcollective/vendor/json/tests/test_json_encoding.rb
@@ -0,0 +1,65 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8 -*-
+
+require 'test/unit'
+require File.join(File.dirname(__FILE__), 'setup_variant')
+
+class TC_JSONEncoding < Test::Unit::TestCase
+  include JSON
+
+  def setup
+    @utf_8 = '["© ≠ €!"]'
+    @parsed = [ "© ≠ €!" ]
+    @generated = '["\u00a9 \u2260 \u20ac!"]'
+    if String.method_defined?(:encode)
+      @utf_16_data = [@parsed.first.encode('utf-16be', 'utf-8')]
+      @utf_8_ascii_8bit = @utf_8.dup.force_encoding(Encoding::ASCII_8BIT)
+      @utf_16be = @utf_8.encode('utf-16be', 'utf-8')
+      @utf_16be_ascii_8bit = @utf_16be.dup.force_encoding(Encoding::ASCII_8BIT)
+      @utf_16le = @utf_8.encode('utf-16le', 'utf-8')
+      @utf_16le_ascii_8bit = @utf_16le.dup.force_encoding(Encoding::ASCII_8BIT)
+      @utf_32be = @utf_8.encode('utf-32be', 'utf-8')
+      @utf_32be_ascii_8bit = @utf_32be.dup.force_encoding(Encoding::ASCII_8BIT)
+      @utf_32le = @utf_8.encode('utf-32le', 'utf-8')
+      @utf_32le_ascii_8bit = @utf_32le.dup.force_encoding(Encoding::ASCII_8BIT)
+    else
+      require 'iconv'
+      @utf_16_data = Iconv.iconv('utf-16be', 'utf-8', @parsed.first)
+      @utf_8_ascii_8bit = @utf_8.dup
+      @utf_16be, = Iconv.iconv('utf-16be', 'utf-8', @utf_8)
+      @utf_16be_ascii_8bit = @utf_16be.dup
+      @utf_16le, = Iconv.iconv('utf-16le', 'utf-8', @utf_8)
+      @utf_16le_ascii_8bit = @utf_16le.dup
+      @utf_32be, = Iconv.iconv('utf-32be', 'utf-8', @utf_8)
+      @utf_32be_ascii_8bit = @utf_32be.dup
+      @utf_32le, = Iconv.iconv('utf-32le', 'utf-8', @utf_8)
+      @utf_32le_ascii_8bit = @utf_32le.dup
+    end
+  end
+
+  def test_parse
+    assert_equal @parsed, JSON.parse(@utf_8)
+    assert_equal @parsed, JSON.parse(@utf_16be)
+    assert_equal @parsed, JSON.parse(@utf_16le)
+    assert_equal @parsed, JSON.parse(@utf_32be)
+    assert_equal @parsed, JSON.parse(@utf_32le)
+  end
+
+  def test_parse_ascii_8bit
+    assert_equal @parsed, JSON.parse(@utf_8_ascii_8bit)
+    assert_equal @parsed, JSON.parse(@utf_16be_ascii_8bit)
+    assert_equal @parsed, JSON.parse(@utf_16le_ascii_8bit)
+    assert_equal @parsed, JSON.parse(@utf_32be_ascii_8bit)
+    assert_equal @parsed, JSON.parse(@utf_32le_ascii_8bit)
+  end
+
+  def test_generate
+    assert_equal @generated, JSON.generate(@parsed, :ascii_only => true)
+    if defined?(::Encoding)
+      assert_equal @generated, JSON.generate(@utf_16_data, :ascii_only => true)
+    else
+      # XXX checking of correct utf8 data is not as strict (yet?) without :ascii_only
+      assert_raises(JSON::GeneratorError) { JSON.generate(@utf_16_data, :ascii_only => true) }
+    end
+  end
+end