1 files changed, 72 insertions, 0 deletions
diff --git a/test/json/test_json_unicode.rb b/test/json/test_json_unicode.rb
new file mode 100644
index 0000000000..8352d5c6c6
--- /dev/null
+++ b/test/json/test_json_unicode.rb
@@ -0,0 +1,72 @@
+#!/usr/bin/env ruby
+# encoding: utf-8
+
+require 'test/unit'
+require File.join(File.dirname(__FILE__), 'setup_variant')
+
+class TestJSONUnicode < Test::Unit::TestCase
+  include JSON
+
+  def test_unicode
+    assert_equal '""', ''.to_json
+    assert_equal '"\\b"', "\b".to_json
+    assert_equal '"\u0001"', 0x1.chr.to_json
+    assert_equal '"\u001f"', 0x1f.chr.to_json
+    assert_equal '" "', ' '.to_json
+    assert_equal "\"#{0x7f.chr}\"", 0x7f.chr.to_json
+    utf8 = [ "© ≠ €! \01" ]
+    json = '["© ≠ €! \u0001"]'
+    assert_equal json, utf8.to_json(:ascii_only => false)
+    assert_equal utf8, parse(json)
+    json = '["\u00a9 \u2260 \u20ac! \u0001"]'
+    assert_equal json, utf8.to_json(:ascii_only => true)
+    assert_equal utf8, parse(json)
+    utf8 = ["\343\201\202\343\201\204\343\201\206\343\201\210\343\201\212"]
+    json = "[\"\343\201\202\343\201\204\343\201\206\343\201\210\343\201\212\"]"
+    assert_equal utf8, parse(json)
+    assert_equal json, utf8.to_json(:ascii_only => false)
+    utf8 = ["\343\201\202\343\201\204\343\201\206\343\201\210\343\201\212"]
+    assert_equal utf8, parse(json)
+    json = "[\"\\u3042\\u3044\\u3046\\u3048\\u304a\"]"
+    assert_equal json, utf8.to_json(:ascii_only => true)
+    assert_equal utf8, parse(json)
+    utf8 = ['საქართველო']
+    json = '["საქართველო"]'
+    assert_equal json, utf8.to_json(:ascii_only => false)
+    json = "[\"\\u10e1\\u10d0\\u10e5\\u10d0\\u10e0\\u10d7\\u10d5\\u10d4\\u10da\\u10dd\"]"
+    assert_equal json, utf8.to_json(:ascii_only => true)
+    assert_equal utf8, parse(json)
+    assert_equal '["Ã"]', JSON.generate(["Ã"], :ascii_only => false)
+    assert_equal '["\\u00c3"]', JSON.generate(["Ã"], :ascii_only => true)
+    assert_equal ["€"], JSON.parse('["\u20ac"]')
+    utf8 = ["\xf0\xa0\x80\x81"]
+    json = "[\"\xf0\xa0\x80\x81\"]"
+    assert_equal json, JSON.generate(utf8, :ascii_only => false)
+    assert_equal utf8, JSON.parse(json)
+    json = '["\ud840\udc01"]'
+    assert_equal json, JSON.generate(utf8, :ascii_only => true)
+    assert_equal utf8, JSON.parse(json)
+  end
+
+  def test_chars
+    (0..0x7f).each do |i|
+      json = '["\u%04x"]' % i
+      if RUBY_VERSION >= "1.9."
+        i = i.chr
+      end
+      assert_equal i, JSON.parse(json).first[0]
+      if i == ?\b
+        generated = JSON.generate(["" << i])
+        assert '["\b"]' == generated || '["\10"]' == generated
+      elsif [?\n, ?\r, ?\t, ?\f].include?(i)
+        assert_equal '[' << ('' << i).dump << ']', JSON.generate(["" << i])
+      elsif i.chr < 0x20.chr
+        assert_equal json, JSON.generate(["" << i])
+      end
+    end
+    assert_raise(JSON::GeneratorError) do
+      JSON.generate(["\x80"], :ascii_only => true)
+    end
+    assert_equal "\302\200", JSON.parse('["\u0080"]').first
+  end
+end