* test/lib/test/unit.rb: added test files with `_test` suffix for json

  upstream.
* test/json: merge original test files from json upstream.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55667 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 448 insertions, 0 deletions

diff --git a/test/json/json_parser_test.rb b/test/json/json_parser_test.rb
new file mode 100644
index 0000000000..c1c2779b96
--- /dev/null
+++ b/test/json/json_parser_test.rb
@@ -0,0 +1,448 @@
+# encoding: utf-8
+# frozen_string_literal: false
+require 'test_helper'
+require 'stringio'
+require 'tempfile'
+require 'ostruct'
+
+class JSONParserTest < Test::Unit::TestCase
+  include JSON
+
+  def test_construction
+    parser = JSON::Parser.new('test')
+    assert_equal 'test', parser.source
+  end
+
+  def test_argument_encoding
+    source = "{}".encode("UTF-16")
+    JSON::Parser.new(source)
+    assert_equal Encoding::UTF_16, source.encoding
+  end if defined?(Encoding::UTF_16)
+
+  def test_error_message_encoding
+    bug10705 = '[ruby-core:67386] [Bug #10705]'
+    json = ".\"\xE2\x88\x9A\"".force_encoding(Encoding::UTF_8)
+    e = assert_raise(JSON::ParserError) {
+      JSON::Ext::Parser.new(json).parse
+    }
+    assert_equal(Encoding::UTF_8, e.message.encoding, bug10705)
+    assert_include(e.message, json, bug10705)
+  end if defined?(Encoding::UTF_8) and defined?(JSON::Ext::Parser)
+
+  def test_parsing
+    parser = JSON::Parser.new('"test"')
+    assert_equal 'test', parser.parse
+  end
+
+  def test_parser_reset
+    parser = Parser.new('{"a":"b"}')
+    assert_equal({ 'a' => 'b' }, parser.parse)
+    assert_equal({ 'a' => 'b' }, parser.parse)
+  end
+
+  def test_parse_simple_arrays
+    assert_equal([],             parse('[]'))
+    assert_equal([],             parse('  [  ] '))
+    assert_equal([ nil ],        parse('[null]'))
+    assert_equal([ false ],      parse('[false]'))
+    assert_equal([ true ],       parse('[true]'))
+    assert_equal([ -23 ],        parse('[-23]'))
+    assert_equal([ 23 ],         parse('[23]'))
+    assert_equal_float([ 0.23 ], parse('[0.23]'))
+    assert_equal_float([ 0.0 ],  parse('[0e0]'))
+    assert_equal([""],           parse('[""]'))
+    assert_equal(["foobar"],     parse('["foobar"]'))
+    assert_equal([{}],           parse('[{}]'))
+  end
+
+  def test_parse_simple_objects
+    assert_equal({}, parse('{}'))
+    assert_equal({}, parse(' {   }   '))
+    assert_equal({ "a" => nil }, parse('{   "a"   :  null}'))
+    assert_equal({ "a" => nil }, parse('{"a":null}'))
+    assert_equal({ "a" => false }, parse('{   "a"  :  false  }  '))
+    assert_equal({ "a" => false }, parse('{"a":false}'))
+    assert_raise(JSON::ParserError) { parse('{false}') }
+    assert_equal({ "a" => true }, parse('{"a":true}'))
+    assert_equal({ "a" => true }, parse('  { "a" :  true  }   '))
+    assert_equal({ "a" => -23 }, parse('  {  "a"  :  -23  }  '))
+    assert_equal({ "a" => -23 }, parse('  { "a" : -23 } '))
+    assert_equal({ "a" => 23 }, parse('{"a":23  } '))
+    assert_equal({ "a" => 23 }, parse('  { "a"  : 23  } '))
+    assert_equal({ "a" => 0.23 }, parse(' { "a"  :  0.23 }  '))
+    assert_equal({ "a" => 0.23 }, parse('  {  "a"  :  0.23  }  '))
+  end
+
+  def test_parse_numbers
+    assert_raise(JSON::ParserError) { parse('+23.2') }
+    assert_raise(JSON::ParserError) { parse('+23') }
+    assert_raise(JSON::ParserError) { parse('.23') }
+    assert_raise(JSON::ParserError) { parse('023') }
+    assert_equal 23, parse('23')
+    assert_equal -23, parse('-23')
+    assert_equal_float 3.141, parse('3.141')
+    assert_equal_float -3.141, parse('-3.141')
+    assert_equal_float 3.141, parse('3141e-3')
+    assert_equal_float 3.141, parse('3141.1e-3')
+    assert_equal_float 3.141, parse('3141E-3')
+    assert_equal_float 3.141, parse('3141.0E-3')
+    assert_equal_float -3.141, parse('-3141.0e-3')
+    assert_equal_float -3.141, parse('-3141e-3')
+    assert_raise(ParserError) { parse('NaN') }
+    assert parse('NaN', :allow_nan => true).nan?
+    assert_raise(ParserError) { parse('Infinity') }
+    assert_equal 1.0/0, parse('Infinity', :allow_nan => true)
+    assert_raise(ParserError) { parse('-Infinity') }
+    assert_equal -1.0/0, parse('-Infinity', :allow_nan => true)
+  end
+
+  if Array.method_defined?(:permutation)
+    def test_parse_more_complex_arrays
+      a = [ nil, false, true, "foßbar", [ "n€st€d", true ], { "nested" => true, "n€ßt€ð2" => {} }]
+      a.permutation.each do |perm|
+        json = pretty_generate(perm)
+        assert_equal perm, parse(json)
+      end
+    end
+
+    def test_parse_complex_objects
+      a = [ nil, false, true, "foßbar", [ "n€st€d", true ], { "nested" => true, "n€ßt€ð2" => {} }]
+      a.permutation.each do |perm|
+        s = "a"
+        orig_obj = perm.inject({}) { |h, x| h[s.dup] = x; s = s.succ; h }
+        json = pretty_generate(orig_obj)
+        assert_equal orig_obj, parse(json)
+      end
+    end
+  end
+
+  def test_parse_arrays
+    assert_equal([1,2,3], parse('[1,2,3]'))
+    assert_equal([1.2,2,3], parse('[1.2,2,3]'))
+    assert_equal([[],[[],[]]], parse('[[],[[],[]]]'))
+    assert_equal([], parse('[]'))
+    assert_equal([], parse('  [  ]  '))
+    assert_equal([1], parse('[1]'))
+    assert_equal([1], parse('  [ 1  ]  '))
+    ary = [[1], ["foo"], [3.14], [4711.0], [2.718], [nil],
+      [[1, -2, 3]], [false], [true]]
+    assert_equal(ary,
+      parse('[[1],["foo"],[3.14],[47.11e+2],[2718.0E-3],[null],[[1,-2,3]],[false],[true]]'))
+    assert_equal(ary, parse(%Q{   [   [1] , ["foo"]  ,  [3.14] \t ,  [47.11e+2]\s
+      , [2718.0E-3 ],\r[ null] , [[1, -2, 3 ]], [false ],[ true]\n ]  }))
+  end
+
+  def test_parse_json_primitive_values
+    assert_raise(JSON::ParserError) { parse('') }
+    assert_raise(TypeError) { parse(nil) }
+    assert_raise(JSON::ParserError) { parse('  /* foo */ ') }
+    assert_equal nil, parse('null')
+    assert_equal false, parse('false')
+    assert_equal true, parse('true')
+    assert_equal 23, parse('23')
+    assert_equal 1, parse('1')
+    assert_equal_float 3.141, parse('3.141'), 1E-3
+    assert_equal 2 ** 64, parse('18446744073709551616')
+    assert_equal 'foo', parse('"foo"')
+    assert parse('NaN', :allow_nan => true).nan?
+    assert parse('Infinity', :allow_nan => true).infinite?
+    assert parse('-Infinity', :allow_nan => true).infinite?
+    assert_raise(JSON::ParserError) { parse('[ 1, ]') }
+  end
+
+  def test_parse_some_strings
+    assert_equal([""], parse('[""]'))
+    assert_equal(["\\"], parse('["\\\\"]'))
+    assert_equal(['"'], parse('["\""]'))
+    assert_equal(['\\"\\'], parse('["\\\\\\"\\\\"]'))
+    assert_equal(
+      ["\"\b\n\r\t\0\037"],
+      parse('["\"\b\n\r\t\u0000\u001f"]')
+    )
+  end
+
+  def test_parse_big_integers
+    json1 = JSON(orig = (1 << 31) - 1)
+    assert_equal orig, parse(json1)
+    json2 = JSON(orig = 1 << 31)
+    assert_equal orig, parse(json2)
+    json3 = JSON(orig = (1 << 62) - 1)
+    assert_equal orig, parse(json3)
+    json4 = JSON(orig = 1 << 62)
+    assert_equal orig, parse(json4)
+    json5 = JSON(orig = 1 << 64)
+    assert_equal orig, parse(json5)
+  end
+
+  def test_some_wrong_inputs
+    assert_raise(ParserError) { parse('[] bla') }
+    assert_raise(ParserError) { parse('[] 1') }
+    assert_raise(ParserError) { parse('[] []') }
+    assert_raise(ParserError) { parse('[] {}') }
+    assert_raise(ParserError) { parse('{} []') }
+    assert_raise(ParserError) { parse('{} {}') }
+    assert_raise(ParserError) { parse('[NULL]') }
+    assert_raise(ParserError) { parse('[FALSE]') }
+    assert_raise(ParserError) { parse('[TRUE]') }
+    assert_raise(ParserError) { parse('[07]    ') }
+    assert_raise(ParserError) { parse('[0a]') }
+    assert_raise(ParserError) { parse('[1.]') }
+    assert_raise(ParserError) { parse('     ') }
+  end
+
+  def test_symbolize_names
+    assert_equal({ "foo" => "bar", "baz" => "quux" },
+      parse('{"foo":"bar", "baz":"quux"}'))
+    assert_equal({ :foo => "bar", :baz => "quux" },
+      parse('{"foo":"bar", "baz":"quux"}', :symbolize_names => true))
+    assert_raise(ArgumentError) do
+      parse('{}', :symbolize_names => true, :create_additions => true)
+    end
+  end
+
+  def test_parse_comments
+    json = <<EOT
+{
+  "key1":"value1", // eol comment
+  "key2":"value2"  /* multi line
+                    *  comment */,
+  "key3":"value3"  /* multi line
+                    // nested eol comment
+                    *  comment */
+}
+EOT
+    assert_equal(
+      { "key1" => "value1", "key2" => "value2", "key3" => "value3" },
+      parse(json))
+    json = <<EOT
+{
+  "key1":"value1"  /* multi line
+                    // nested eol comment
+                    /* illegal nested multi line comment */
+                    *  comment */
+}
+EOT
+    assert_raise(ParserError) { parse(json) }
+    json = <<EOT
+{
+  "key1":"value1"  /* multi line
+                   // nested eol comment
+                   closed multi comment */
+                   and again, throw an Error */
+}
+EOT
+    assert_raise(ParserError) { parse(json) }
+    json = <<EOT
+{
+  "key1":"value1"  /*/*/
+}
+EOT
+    assert_equal({ "key1" => "value1" }, parse(json))
+  end
+
+  def test_nesting
+    too_deep = '[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[["Too deep"]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]'
+    too_deep_ary = eval too_deep
+    assert_raise(JSON::NestingError) { parse too_deep }
+    assert_raise(JSON::NestingError) { parse too_deep, :max_nesting => 100 }
+    ok = parse too_deep, :max_nesting => 101
+    assert_equal too_deep_ary, ok
+    ok = parse too_deep, :max_nesting => nil
+    assert_equal too_deep_ary, ok
+    ok = parse too_deep, :max_nesting => false
+    assert_equal too_deep_ary, ok
+    ok = parse too_deep, :max_nesting => 0
+    assert_equal too_deep_ary, ok
+  end
+
+  def test_backslash
+    data = [ '\\.(?i:gif|jpe?g|png)$' ]
+    json = '["\\\\.(?i:gif|jpe?g|png)$"]'
+    assert_equal data, parse(json)
+    #
+    data = [ '\\"' ]
+    json = '["\\\\\""]'
+    assert_equal data, parse(json)
+    #
+    json = '["/"]'
+    data = [ '/' ]
+    assert_equal data, parse(json)
+    #
+    json = '["\""]'
+    data = ['"']
+    assert_equal data, parse(json)
+    #
+    json = '["\\\'"]'
+    data = ["'"]
+    assert_equal data, parse(json)
+  end
+
+
+  class SubArray < Array
+    def <<(v)
+      @shifted = true
+      super
+    end
+
+    def shifted?
+      @shifted
+    end
+  end
+
+  class SubArray2 < Array
+    def to_json(*a)
+      {
+        JSON.create_id => self.class.name,
+        'ary'          => to_a,
+      }.to_json(*a)
+    end
+
+    def self.json_create(o)
+      o.delete JSON.create_id
+      o['ary']
+    end
+  end
+
+  class SubArrayWrapper
+    def initialize
+      @data = []
+    end
+
+    attr_reader :data
+
+    def [](index)
+      @data[index]
+    end
+
+    def <<(value)
+      @data << value
+      @shifted = true
+    end
+
+    def shifted?
+      @shifted
+    end
+  end
+
+  def test_parse_array_custom_array_derived_class
+    res = parse('[1,2]', :array_class => SubArray)
+    assert_equal([1,2], res)
+    assert_equal(SubArray, res.class)
+    assert res.shifted?
+  end
+
+  def test_parse_array_custom_non_array_derived_class
+    res = parse('[1,2]', :array_class => SubArrayWrapper)
+    assert_equal([1,2], res.data)
+    assert_equal(SubArrayWrapper, res.class)
+    assert res.shifted?
+  end
+
+  def test_parse_object
+    assert_equal({}, parse('{}'))
+    assert_equal({}, parse('  {  }  '))
+    assert_equal({'foo'=>'bar'}, parse('{"foo":"bar"}'))
+    assert_equal({'foo'=>'bar'}, parse('    { "foo"  :   "bar"   }   '))
+  end
+
+  class SubHash < Hash
+    def []=(k, v)
+      @item_set = true
+      super
+    end
+
+    def item_set?
+      @item_set
+    end
+  end
+
+  class SubHash2 < Hash
+    def to_json(*a)
+      {
+        JSON.create_id => self.class.name,
+      }.merge(self).to_json(*a)
+    end
+
+    def self.json_create(o)
+      o.delete JSON.create_id
+      self[o]
+    end
+  end
+
+  class SubOpenStruct < OpenStruct
+    def [](k)
+      __send__(k)
+    end
+
+    def []=(k, v)
+      @item_set = true
+      __send__("#{k}=", v)
+    end
+
+    def item_set?
+      @item_set
+    end
+  end
+
+  def test_parse_object_custom_hash_derived_class
+    res = parse('{"foo":"bar"}', :object_class => SubHash)
+    assert_equal({"foo" => "bar"}, res)
+    assert_equal(SubHash, res.class)
+    assert res.item_set?
+  end
+
+  def test_parse_object_custom_non_hash_derived_class
+    res = parse('{"foo":"bar"}', :object_class => SubOpenStruct)
+    assert_equal "bar", res.foo
+    assert_equal(SubOpenStruct, res.class)
+    assert res.item_set?
+  end
+
+  def test_parse_generic_object
+    res = parse(
+      '{"foo":"bar", "baz":{}}',
+      :object_class => JSON::GenericObject
+    )
+    assert_equal(JSON::GenericObject, res.class)
+    assert_equal "bar", res.foo
+    assert_equal "bar", res["foo"]
+    assert_equal "bar", res[:foo]
+    assert_equal "bar", res.to_hash[:foo]
+    assert_equal(JSON::GenericObject, res.baz.class)
+  end
+
+  def test_generate_core_subclasses_with_new_to_json
+    obj = SubHash2["foo" => SubHash2["bar" => true]]
+    obj_json = JSON(obj)
+    obj_again = parse(obj_json, :create_additions => true)
+    assert_kind_of SubHash2, obj_again
+    assert_kind_of SubHash2, obj_again['foo']
+    assert obj_again['foo']['bar']
+    assert_equal obj, obj_again
+    assert_equal ["foo"],
+      JSON(JSON(SubArray2["foo"]), :create_additions => true)
+  end
+
+  def test_generate_core_subclasses_with_default_to_json
+    assert_equal '{"foo":"bar"}', JSON(SubHash["foo" => "bar"])
+    assert_equal '["foo"]', JSON(SubArray["foo"])
+  end
+
+  def test_generate_of_core_subclasses
+    obj = SubHash["foo" => SubHash["bar" => true]]
+    obj_json = JSON(obj)
+    obj_again = JSON(obj_json)
+    assert_kind_of Hash, obj_again
+    assert_kind_of Hash, obj_again['foo']
+    assert obj_again['foo']['bar']
+    assert_equal obj, obj_again
+  end
+
+  private
+
+  def assert_equal_float(expected, actual, delta = 1e-2)
+    Array === expected and expected = expected.first
+    Array === actual and actual = actual.first
+    assert_in_delta(expected, actual, delta)
+  end
+end