1 files changed, 68 insertions, 0 deletions
diff --git a/test/json/test_json_encoding.rb b/test/json/test_json_encoding.rb
new file mode 100644
index 0000000000..fdea329605
--- /dev/null
+++ b/test/json/test_json_encoding.rb
@@ -0,0 +1,68 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8 -*-
+
+require 'test/unit'
+case ENV['JSON']
+when 'pure' then require 'json/pure'
+when 'ext'  then require 'json/ext'
+else             require 'json'
+end
+require 'iconv'
+
+class TC_JSONEncoding < Test::Unit::TestCase
+  include JSON
+
+  def setup
+    @utf_8 = '["© ≠ €!"]'
+    @parsed = [ "© ≠ €!" ]
+    @utf_16_data = Iconv.iconv('utf-16be', 'utf-8', @parsed.first)
+    @generated = '["\u00a9 \u2260 \u20ac!"]'
+    if defined?(::Encoding)
+      @utf_8_ascii_8bit = @utf_8.dup.force_encoding(Encoding::ASCII_8BIT)
+      @utf_16be, = Iconv.iconv('utf-16be', 'utf-8', @utf_8)
+      @utf_16be_ascii_8bit = @utf_16be.dup.force_encoding(Encoding::ASCII_8BIT)
+      @utf_16le, = Iconv.iconv('utf-16le', 'utf-8', @utf_8)
+      @utf_16le_ascii_8bit = @utf_16le.dup.force_encoding(Encoding::ASCII_8BIT)
+      @utf_32be, = Iconv.iconv('utf-32be', 'utf-8', @utf_8)
+      @utf_32be_ascii_8bit = @utf_32be.dup.force_encoding(Encoding::ASCII_8BIT)
+      @utf_32le, = Iconv.iconv('utf-32le', 'utf-8', @utf_8)
+      @utf_32le_ascii_8bit = @utf_32le.dup.force_encoding(Encoding::ASCII_8BIT)
+    else
+      @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