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-rw-r--r--test/json/json_parser_test.rb908
1 files changed, 908 insertions, 0 deletions
diff --git a/test/json/json_parser_test.rb b/test/json/json_parser_test.rb
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--- /dev/null
+++ b/test/json/json_parser_test.rb
@@ -0,0 +1,908 @@
+# frozen_string_literal: true
+require_relative 'test_helper'
+require 'stringio'
+require 'tempfile'
+begin
+ require 'ostruct'
+rescue LoadError
+end
+begin
+ require 'bigdecimal'
+rescue LoadError
+end
+
+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_unmodified
+ source = "{}".encode(Encoding::UTF_16)
+ JSON::Parser.new(source)
+ assert_equal Encoding::UTF_16, source.encoding
+ end
+
+ def test_argument_encoding_for_binary_unmodified
+ source = "{}".b
+ JSON::Parser.new(source)
+ assert_equal Encoding::ASCII_8BIT, source.encoding
+ end
+
+ def test_error_message_encoding
+ bug10705 = '[ruby-core:67386] [Bug #10705]'
+ json = ".\"\xE2\x88\x9A\""
+ assert_equal(Encoding::UTF_8, json.encoding)
+ 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
+
+ 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_values
+ 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_in_delta(0.23, parse('0.23'), 1e-2)
+ assert_in_delta(0.0, parse('0e0'), 1e-2)
+ assert_equal("", parse('""'))
+ assert_equal("foobar", parse('"foobar"'))
+ 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 } '))
+ assert_equal({ "" => 123 }, parse('{"":123}'))
+ 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_raise(JSON::ParserError) { parse('-023') }
+ assert_raise(JSON::ParserError) { parse('023.12') }
+ assert_raise(JSON::ParserError) { parse('-023.12') }
+ assert_raise(JSON::ParserError) { parse('023e12') }
+ assert_raise(JSON::ParserError) { parse('-023e12') }
+ assert_raise(JSON::ParserError) { parse('-') }
+ assert_raise(JSON::ParserError) { parse('-.1') }
+ assert_raise(JSON::ParserError) { parse('-e0') }
+ 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))
+ capture_output { assert_equal(Float::INFINITY, parse("23456789012E666")) }
+ end
+
+ def test_parse_bignum
+ bignum = Integer('1234567890' * 10)
+ assert_equal(bignum, JSON.parse(bignum.to_s))
+ assert_equal(bignum.to_f, JSON.parse(bignum.to_s + ".0"))
+
+ bignum = Integer('1234567890' * 50)
+ assert_equal(bignum, JSON.parse(bignum.to_s))
+ bignum_float = EnvUtil.suppress_warning { bignum.to_f }
+ assert_equal(bignum_float, EnvUtil.suppress_warning { JSON.parse(bignum.to_s + ".0") })
+ end
+
+ def test_parse_bigdecimals
+ assert_equal(BigDecimal, JSON.parse('{"foo": 9.01234567890123456789}', decimal_class: BigDecimal)["foo"].class)
+ assert_equal(BigDecimal("0.901234567890123456789E1"),JSON.parse('{"foo": 9.01234567890123456789}', decimal_class: BigDecimal)["foo"] )
+ end if defined?(::BigDecimal)
+
+ def test_parse_string_mixed_unicode
+ assert_equal(["éé"], JSON.parse("[\"\\u00e9é\"]"))
+ end
+
+ 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
+
+ def test_parse_control_chars_in_string
+ 0.upto(31) do |ord|
+ assert_raise JSON::ParserError do
+ parse(%("#{ord.chr}"))
+ end
+ end
+ end
+
+ def test_parse_allowed_control_chars_in_string
+ 0.upto(31) do |ord|
+ assert_equal ord.chr, parse(%("#{ord.chr}"), allow_control_characters: true)
+ end
+ end
+
+ def test_parse_control_char_and_backslash
+ backslash_and_control_char = "\\\t"
+ assert_raise JSON::ParserError do
+ JSON.parse(%("#{'a' * 30}#{backslash_and_control_char}"), allow_control_characters: true, allow_invalid_escape: false)
+ end
+
+ JSON.parse(%("#{'a' * 30}#{backslash_and_control_char}"), allow_control_characters: true, allow_invalid_escape: true)
+ end
+
+ def test_parse_invalid_escape
+ assert_raise JSON::ParserError do
+ parse(%("fo\\o"))
+ end
+
+ assert_equal "foo", parse(%("fo\\o"), allow_invalid_escape: true)
+ 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?
+ end
+
+ def test_parse_arrays_with_allow_trailing_comma
+ assert_equal([], parse('[]', allow_trailing_comma: true))
+ assert_equal([], parse('[]', allow_trailing_comma: false))
+ assert_raise(JSON::ParserError) { parse('[,]', allow_trailing_comma: true) }
+ assert_raise(JSON::ParserError) { parse('[,]', allow_trailing_comma: false) }
+
+ assert_equal([1], parse('[1]', allow_trailing_comma: true))
+ assert_equal([1], parse('[1]', allow_trailing_comma: false))
+ assert_equal([1], parse('[1,]', allow_trailing_comma: true))
+ assert_raise(JSON::ParserError) { parse('[1,]', allow_trailing_comma: false) }
+
+ assert_equal([1, 2, 3], parse('[1,2,3]', allow_trailing_comma: true))
+ assert_equal([1, 2, 3], parse('[1,2,3]', allow_trailing_comma: false))
+ assert_equal([1, 2, 3], parse('[1,2,3,]', allow_trailing_comma: true))
+ assert_raise(JSON::ParserError) { parse('[1,2,3,]', allow_trailing_comma: false) }
+
+ assert_equal([1, 2, 3], parse('[ 1 , 2 , 3 ]', allow_trailing_comma: true))
+ assert_equal([1, 2, 3], parse('[ 1 , 2 , 3 ]', allow_trailing_comma: false))
+ assert_equal([1, 2, 3], parse('[ 1 , 2 , 3 , ]', allow_trailing_comma: true))
+ assert_raise(JSON::ParserError) { parse('[ 1 , 2 , 3 , ]', allow_trailing_comma: false) }
+
+ assert_equal({'foo' => [1, 2, 3]}, parse('{ "foo": [1,2,3] }', allow_trailing_comma: true))
+ assert_equal({'foo' => [1, 2, 3]}, parse('{ "foo": [1,2,3] }', allow_trailing_comma: false))
+ assert_equal({'foo' => [1, 2, 3]}, parse('{ "foo": [1,2,3,] }', allow_trailing_comma: true))
+ assert_raise(JSON::ParserError) { parse('{ "foo": [1,2,3,] }', allow_trailing_comma: false) }
+ end
+
+ def test_parse_object_with_allow_trailing_comma
+ assert_equal({}, parse('{}', allow_trailing_comma: true))
+ assert_equal({}, parse('{}', allow_trailing_comma: false))
+ assert_raise(JSON::ParserError) { parse('{,}', allow_trailing_comma: true) }
+ assert_raise(JSON::ParserError) { parse('{,}', allow_trailing_comma: false) }
+
+ assert_equal({'foo'=>'bar'}, parse('{"foo":"bar"}', allow_trailing_comma: true))
+ assert_equal({'foo'=>'bar'}, parse('{"foo":"bar"}', allow_trailing_comma: false))
+ assert_equal({'foo'=>'bar'}, parse('{"foo":"bar",}', allow_trailing_comma: true))
+ assert_raise(JSON::ParserError) { parse('{"foo":"bar",}', allow_trailing_comma: false) }
+
+ assert_equal(
+ {'foo'=>'bar', 'baz'=>'qux', 'quux'=>'garply'},
+ parse('{"foo":"bar","baz":"qux","quux":"garply"}', allow_trailing_comma: true)
+ )
+ assert_equal(
+ {'foo'=>'bar', 'baz'=>'qux', 'quux'=>'garply'},
+ parse('{"foo":"bar","baz":"qux","quux":"garply"}', allow_trailing_comma: false)
+ )
+ assert_equal(
+ {'foo'=>'bar', 'baz'=>'qux', 'quux'=>'garply'},
+ parse('{"foo":"bar","baz":"qux","quux":"garply",}', allow_trailing_comma: true)
+ )
+ assert_raise(JSON::ParserError) {
+ parse('{"foo":"bar","baz":"qux","quux":"garply",}', allow_trailing_comma: false)
+ }
+
+ assert_equal(
+ {'foo'=>'bar', 'baz'=>'qux', 'quux'=>'garply'},
+ parse('{ "foo":"bar" , "baz":"qux" , "quux":"garply" }', allow_trailing_comma: true)
+ )
+ assert_equal(
+ {'foo'=>'bar', 'baz'=>'qux', 'quux'=>'garply'},
+ parse('{ "foo":"bar" , "baz":"qux" , "quux":"garply" }', allow_trailing_comma: false)
+ )
+ assert_equal(
+ {'foo'=>'bar', 'baz'=>'qux', 'quux'=>'garply'},
+ parse('{ "foo":"bar" , "baz":"qux" , "quux":"garply" , }', allow_trailing_comma: true)
+ )
+ assert_raise(JSON::ParserError) {
+ parse('{ "foo":"bar" , "baz":"qux" , "quux":"garply" , }', allow_trailing_comma: false)
+ }
+
+ assert_equal(
+ [{'foo'=>'bar', 'baz'=>'qux', 'quux'=>'garply'}],
+ parse('[{"foo":"bar","baz":"qux","quux":"garply"}]', allow_trailing_comma: true)
+ )
+ assert_equal(
+ [{'foo'=>'bar', 'baz'=>'qux', 'quux'=>'garply'}],
+ parse('[{"foo":"bar","baz":"qux","quux":"garply"}]', allow_trailing_comma: false)
+ )
+ assert_equal(
+ [{'foo'=>'bar', 'baz'=>'qux', 'quux'=>'garply'}],
+ parse('[{"foo":"bar","baz":"qux","quux":"garply",}]', allow_trailing_comma: true)
+ )
+ assert_raise(JSON::ParserError) {
+ parse('[{"foo":"bar","baz":"qux","quux":"garply",}]', allow_trailing_comma: false)
+ }
+ 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
+
+ if RUBY_ENGINE != "jruby" # https://github.com/ruby/json/issues/138
+ def test_parse_broken_string
+ s = parse(%{["\x80"]})[0]
+ assert_equal("\x80", s)
+ assert_equal Encoding::UTF_8, s.encoding
+ assert_equal false, s.valid_encoding?
+
+ s = parse(%{["\x80"]}.b)[0]
+ assert_equal("\x80", s)
+ assert_equal Encoding::UTF_8, s.encoding
+ assert_equal false, s.valid_encoding?
+
+ input = %{["\x80"]}.dup.force_encoding(Encoding::US_ASCII)
+ assert_raise(Encoding::InvalidByteSequenceError) { parse(input) }
+ end
+ end
+
+ def test_invalid_unicode_escape
+ assert_raise(JSON::ParserError) { parse('"\u"') }
+ assert_raise(JSON::ParserError) { parse('"\ua"') }
+ assert_raise(JSON::ParserError) { parse('"\uaa"') }
+ assert_raise(JSON::ParserError) { parse('"\uaaa"') }
+ assert_equal "\uaaaa", parse('"\uaaaa"')
+
+ assert_raise(JSON::ParserError) { parse('"\u______"') }
+ assert_raise(JSON::ParserError) { parse('"\u1_____"') }
+ assert_raise(JSON::ParserError) { parse('"\u11____"') }
+ assert_raise(JSON::ParserError) { parse('"\u111___"') }
+ end
+
+ def test_unicode_followed_by_newline
+ # Ref: https://github.com/ruby/json/issues/912
+ assert_equal "🌌\n".bytes, JSON.parse('"\ud83c\udf0c\n"').bytes
+ assert_equal "🌌\n", JSON.parse('"\ud83c\udf0c\n"')
+ assert_predicate JSON.parse('"\ud83c\udf0c\n"'), :valid_encoding?
+ end
+
+ def test_invalid_surogates
+ assert_raise(JSON::ParserError) { parse('"\\uD800"') }
+ assert_raise(JSON::ParserError) { parse('"\\uD800_________________"') }
+ assert_raise(JSON::ParserError) { parse('"\\uD800\\u0041"') }
+ assert_raise(JSON::ParserError) { parse('"\\uD800\\u004') }
+ 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_parse_escaped_key
+ doc = {
+ "test\r1" => 1,
+ "entries" => [
+ "test\t2" => 2,
+ "test\n3" => 3,
+ ]
+ }
+
+ assert_equal doc, parse(JSON.generate(doc))
+ end
+
+ def test_parse_duplicate_key
+ expected = {"a" => 2}
+ expected_sym = {a: 2}
+
+ assert_equal expected, parse('{"a": 1, "a": 2}', allow_duplicate_key: true)
+ assert_raise(ParserError) { parse('{"a": 1, "a": 2}', allow_duplicate_key: false) }
+ assert_raise(ParserError) { parse('{"a": 1, "a": 2}', allow_duplicate_key: false, symbolize_names: true) }
+
+ assert_deprecated_warning(/duplicate key "a"/) do
+ assert_equal expected, parse('{"a": 1, "a": 2}')
+ end
+ assert_deprecated_warning(/duplicate key "a"/) do
+ assert_equal expected_sym, parse('{"a": 1, "a": 2}', symbolize_names: true)
+ end
+
+ if RUBY_ENGINE == 'ruby'
+ assert_deprecated_warning(/#{File.basename(__FILE__)}\:#{__LINE__ + 1}/) do
+ assert_equal expected, parse('{"a": 1, "a": 2}')
+ end
+ end
+
+ unless RUBY_ENGINE == 'jruby'
+ assert_raise(ParserError) do
+ fake_key = Object.new
+ JSON.load('{"a": 1, "a": 2}', -> (obj) { obj == "a" ? fake_key : obj }, allow_duplicate_key: false)
+ end
+
+ assert_deprecated_warning(/duplicate key #<Object:0x/) do
+ fake_key = Object.new
+ JSON.load('{"a": 1, "a": 2}', -> (obj) { obj == "a" ? fake_key : obj })
+ end
+ end
+ end
+
+ def test_parse_duplicate_key_escape
+ error = assert_raise(ParserError) do
+ JSON.parse('{"%s%s%s%s":1,"%s%s%s%s":2}', allow_duplicate_key: false)
+ end
+ assert_match "%s%s%s%s", error.message
+ 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_freeze
+ assert_predicate parse('{}', :freeze => true), :frozen?
+ assert_predicate parse('[]', :freeze => true), :frozen?
+ assert_predicate parse('"foo"', :freeze => true), :frozen?
+
+ assert_same(-'foo', parse('"foo"', :freeze => true))
+ assert_same(-'foo', parse('{"foo": 1}', :freeze => true).keys.first)
+ end
+
+ def test_parse_comments
+ json = <<~JSON
+ {
+ "key1":"value1", // eol comment
+ "key2":"value2" /* multi line
+ * comment */,
+ "key3":"value3" /* multi line
+ // nested eol comment
+ * comment */
+ }
+ JSON
+ assert_equal(
+ { "key1" => "value1", "key2" => "value2", "key3" => "value3" },
+ parse(json))
+ json = <<~JSON
+ {
+ "key1":"value1" /* multi line
+ // nested eol comment
+ /* illegal nested multi line comment */
+ * comment */
+ }
+ JSON
+ assert_raise(ParserError) { parse(json) }
+ json = <<~JSON
+ {
+ "key1":"value1" /* multi line
+ // nested eol comment
+ /* legal nested multi line comment start sequence */
+ }
+ JSON
+ assert_equal({ "key1" => "value1" }, parse(json))
+ json = <<~JSON
+ {
+ "key1":"value1" /* multi line
+ // nested eol comment
+ closed multi comment */
+ and again, throw an Error */
+ }
+ JSON
+ assert_raise(ParserError) { parse(json) }
+ json = <<~JSON
+ {
+ "key1":"value1" /*/*/
+ }
+ JSON
+ assert_equal({ "key1" => "value1" }, parse(json))
+ assert_equal({}, parse('{} /**/'))
+ assert_raise(ParserError) { parse('{} /* comment not closed') }
+ assert_raise(ParserError) { parse('{} /*/') }
+ assert_raise(ParserError) { parse('{} /x wrong comment') }
+ assert_raise(ParserError) { parse('{} /') }
+ 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
+ assert_raise(JSON::ParserError) do
+ JSON.parse('"\\')
+ end
+
+ 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)
+
+ json = '["\/"]'
+ data = [ '/' ]
+ assert_equal data, parse(json)
+
+ data = ['"""""""""""""""""""""""""']
+ json = '["\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\""]'
+ assert_equal data, parse(json)
+
+ data = '["This is a "test" of the emergency broadcast system."]'
+ json = "\"[\\\"This is a \\\"test\\\" of the emergency broadcast system.\\\"]\""
+ assert_equal data, parse(json)
+
+ data = '\tThis is a test of the emergency broadcast system.'
+ json = "\"\\\\tThis is a test of the emergency broadcast system.\""
+ assert_equal data, parse(json)
+
+ data = 'This\tis a test of the emergency broadcast system.'
+ json = "\"This\\\\tis a test of the emergency broadcast system.\""
+ assert_equal data, parse(json)
+
+ data = 'This is\ta test of the emergency broadcast system.'
+ json = "\"This is\\\\ta test of the emergency broadcast system.\""
+ assert_equal data, parse(json)
+
+ data = 'This is a test of the emergency broadcast\tsystem.'
+ json = "\"This is a test of the emergency broadcast\\\\tsystem.\""
+ assert_equal data, parse(json)
+
+ data = 'This is a test of the emergency broadcast\tsystem.\n'
+ json = "\"This is a test of the emergency broadcast\\\\tsystem.\\\\n\""
+ assert_equal data, parse(json)
+
+ data = '"' * 15
+ json = "\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\""
+ assert_equal data, parse(json)
+
+ data = "\"\"\"\"\"\"\"\"\"\"\"\"\"\"a"
+ json = "\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"\\\"a\""
+ assert_equal data, parse(json)
+
+ data = "\u0001\u0001\u0001\u0001"
+ json = "\"\\u0001\\u0001\\u0001\\u0001\""
+ assert_equal data, parse(json)
+
+ data = "\u0001a\u0001a\u0001a\u0001a"
+ json = "\"\\u0001a\\u0001a\\u0001a\\u0001a\""
+ assert_equal data, parse(json)
+
+ data = "\u0001aa\u0001aa"
+ json = "\"\\u0001aa\\u0001aa\""
+ assert_equal data, parse(json)
+
+ data = "\u0001aa\u0001aa\u0001aa"
+ json = "\"\\u0001aa\\u0001aa\\u0001aa\""
+ assert_equal data, parse(json)
+
+ data = "\u0001aa\u0001aa\u0001aa\u0001aa\u0001aa\u0001aa"
+ json = "\"\\u0001aa\\u0001aa\\u0001aa\\u0001aa\\u0001aa\\u0001aa\""
+ assert_equal data, parse(json)
+
+ data = "\u0001a\u0002\u0001a\u0002\u0001a\u0002\u0001a\u0002\u0001a\u0002\u0001a\u0002\u0001a\u0002\u0001a\u0002"
+ json = "\"\\u0001a\\u0002\\u0001a\\u0002\\u0001a\\u0002\\u0001a\\u0002\\u0001a\\u0002\\u0001a\\u0002\\u0001a\\u0002\\u0001a\\u0002\""
+ assert_equal data, parse(json)
+
+ data = "ab\u0002c"
+ json = "\"ab\\u0002c\""
+ assert_equal data, parse(json)
+
+ data = "ab\u0002cab\u0002cab\u0002cab\u0002c"
+ json = "\"ab\\u0002cab\\u0002cab\\u0002cab\\u0002c\""
+ assert_equal data, parse(json)
+
+ data = "ab\u0002cab\u0002cab\u0002cab\u0002cab\u0002cab\u0002c"
+ json = "\"ab\\u0002cab\\u0002cab\\u0002cab\\u0002cab\\u0002cab\\u0002c\""
+ assert_equal data, parse(json)
+
+ data = "\n\t\f\b\n\t\f\b\n\t\f\b\n\t\f"
+ json = "\"\\n\\t\\f\\b\\n\\t\\f\\b\\n\\t\\f\\b\\n\\t\\f\""
+ assert_equal data, parse(json)
+
+ data = "\n\t\f\b\n\t\f\b\n\t\f\b\n\t\f\b"
+ json = "\"\\n\\t\\f\\b\\n\\t\\f\\b\\n\\t\\f\\b\\n\\t\\f\\b\""
+ assert_equal data, parse(json)
+
+ data = "a\n\t\f\b\n\t\f\b\n\t\f\b\n\t"
+ json = "\"a\\n\\t\\f\\b\\n\\t\\f\\b\\n\\t\\f\\b\\n\\t\""
+ 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(1, res[0])
+ 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
+
+ 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
+
+ if defined?(::OpenStruct)
+ 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_non_hash_derived_class
+ res = parse('{"foo":"bar"}', :object_class => SubOpenStruct)
+ assert_equal "bar", res.foo
+ 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
+ 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
+
+ def test_parsing_frozen_ascii8bit_string
+ assert_equal(
+ { 'foo' => 'bar' },
+ JSON('{ "foo": "bar" }'.b.freeze)
+ )
+ end
+
+ def test_parse_error_message_length
+ # Error messages aren't consistent across backends, but we can at least
+ # enforce that if they include fragments of the source it should be of
+ # reasonable size.
+ error = assert_raise(JSON::ParserError) do
+ JSON.parse('{"foo": ' + ('A' * 500) + '}')
+ end
+ assert_operator 80, :>, error.message.bytesize
+ end
+
+ def test_parse_error_incomplete_hash
+ error = assert_raise(JSON::ParserError) do
+ JSON.parse('{"input":{"firstName":"Bob","lastName":"Mob","email":"bob@example.com"}')
+ end
+ if RUBY_ENGINE == "ruby"
+ assert_equal %(expected ',' or '}' after object value, got: EOF at line 1 column 72), error.message
+ end
+ end
+
+ def test_parse_error_snippet
+ omit "C ext only test" unless RUBY_ENGINE == "ruby"
+
+ error = assert_raise(JSON::ParserError) { JSON.parse("あああああああああああああああああああああああ") }
+ assert_equal "unexpected character: 'ああああああああああ' at line 1 column 1", error.message
+
+ error = assert_raise(JSON::ParserError) { JSON.parse("aあああああああああああああああああああああああ") }
+ assert_equal "unexpected character: 'aああああああああああ' at line 1 column 1", error.message
+
+ error = assert_raise(JSON::ParserError) { JSON.parse("abあああああああああああああああああああああああ") }
+ assert_equal "unexpected character: 'abあああああああああ' at line 1 column 1", error.message
+
+ error = assert_raise(JSON::ParserError) { JSON.parse("abcあああああああああああああああああああああああ") }
+ assert_equal "unexpected character: 'abcあああああああああ' at line 1 column 1", error.message
+ end
+
+ def test_parse_leading_slash
+ # ref: https://github.com/ruby/ruby/pull/12598
+ assert_raise(JSON::ParserError) do
+ JSON.parse("/foo/bar")
+ end
+ end
+
+ def test_parse_whitespace_after_newline
+ assert_equal [], JSON.parse("[\n#{' ' * (8 + 8 + 4 + 3)}]")
+ end
+
+ def test_frozen
+ parser_config = JSON::Parser::Config.new({}).freeze
+ assert_raise FrozenError do
+ parser_config.send(:initialize, {})
+ end
+ end
+
+ def test_mutating_source_string_during_parsing
+ expected = ([1] * 100) + [2.3] + ([1] * 100)
+ source = JSON.generate(expected)
+ expected.delete_at(100)
+
+ fake_decimal_class = Class.new
+ fake_decimal_class.define_method(:initialize) do |number|
+ source.tr!('1', '0')
+ number.to_f
+ end
+
+ actual = JSON.parse(source, decimal_class: fake_decimal_class)
+ actual.delete_at(100)
+ assert_equal expected, actual
+ 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
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-07 12:00:10 +0000