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#frozen_string_literal: false
require 'test_helper'
require 'stringio'
require 'tempfile'
class JSONCommonInterfaceTest < Test::Unit::TestCase
include JSON
def setup
@hash = {
'a' => 2,
'b' => 3.141,
'c' => 'c',
'd' => [ 1, "b", 3.14 ],
'e' => { 'foo' => 'bar' },
'g' => "\"\0\037",
'h' => 1000.0,
'i' => 0.001
}
@json = '{"a":2,"b":3.141,"c":"c","d":[1,"b",3.14],"e":{"foo":"bar"},'\
'"g":"\\"\\u0000\\u001f","h":1000.0,"i":0.001}'
end
def test_index
assert_equal @json, JSON[@hash]
assert_equal @hash, JSON[@json]
end
def test_parser
assert_match(/::Parser\z/, JSON.parser.name)
end
def test_generator
assert_match(/::Generator\z/, JSON.generator.name)
end
def test_state
assert_match(/::Generator::State\z/, JSON.state.name)
end
def test_create_id
assert_equal 'json_class', JSON.create_id
JSON.create_id = 'foo_bar'
assert_equal 'foo_bar', JSON.create_id
ensure
JSON.create_id = 'json_class'
end
def test_deep_const_get
assert_raise(ArgumentError) { JSON.deep_const_get('Nix::Da') }
assert_equal File::SEPARATOR, JSON.deep_const_get('File::SEPARATOR')
end
def test_parse
assert_equal [ 1, 2, 3, ], JSON.parse('[ 1, 2, 3 ]')
end
def test_parse_bang
assert_equal [ 1, Infinity, 3, ], JSON.parse!('[ 1, Infinity, 3 ]')
end
def test_generate
assert_equal '[1,2,3]', JSON.generate([ 1, 2, 3 ])
end
def test_fast_generate
assert_equal '[1,2,3]', JSON.generate([ 1, 2, 3 ])
end
def test_pretty_generate
assert_equal "[\n 1,\n 2,\n 3\n]", JSON.pretty_generate([ 1, 2, 3 ])
end
def test_load
assert_equal @hash, JSON.load(@json)
tempfile = Tempfile.open('@json')
tempfile.write @json
tempfile.rewind
assert_equal @hash, JSON.load(tempfile)
stringio = StringIO.new(@json)
stringio.rewind
assert_equal @hash, JSON.load(stringio)
assert_equal nil, JSON.load(nil)
assert_equal nil, JSON.load('')
ensure
tempfile.close!
end
def test_load_with_options
json = '{ "foo": NaN }'
assert JSON.load(json, nil, :allow_nan => true)['foo'].nan?
end
def test_load_null
assert_equal nil, JSON.load(nil, nil, :allow_blank => true)
assert_raise(TypeError) { JSON.load(nil, nil, :allow_blank => false) }
assert_raise(JSON::ParserError) { JSON.load('', nil, :allow_blank => false) }
end
def test_dump
too_deep = '[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]'
assert_equal too_deep, dump(eval(too_deep))
assert_kind_of String, Marshal.dump(eval(too_deep))
assert_raise(ArgumentError) { dump(eval(too_deep), 100) }
assert_raise(ArgumentError) { Marshal.dump(eval(too_deep), 100) }
assert_equal too_deep, dump(eval(too_deep), 101)
assert_kind_of String, Marshal.dump(eval(too_deep), 101)
output = StringIO.new
dump(eval(too_deep), output)
assert_equal too_deep, output.string
output = StringIO.new
dump(eval(too_deep), output, 101)
assert_equal too_deep, output.string
end
def test_dump_should_modify_defaults
max_nesting = JSON.dump_default_options[:max_nesting]
dump([], StringIO.new, 10)
assert_equal max_nesting, JSON.dump_default_options[:max_nesting]
end
def test_JSON
assert_equal @json, JSON(@hash)
assert_equal @hash, JSON(@json)
end
def test_load_file
test_load_shared(:load_file)
end
def test_load_file!
test_load_shared(:load_file!)
end
def test_load_file_with_option
test_load_file_with_option_shared(:load_file)
end
def test_load_file_with_option!
test_load_file_with_option_shared(:load_file!)
end
private
def test_load_shared(method_name)
temp_file_containing(@json) do |filespec|
assert_equal JSON.public_send(method_name, filespec), @hash
end
end
def test_load_file_with_option_shared(method_name)
temp_file_containing(@json) do |filespec|
parsed_object = JSON.public_send(method_name, filespec, symbolize_names: true)
key_classes = parsed_object.keys.map(&:class)
assert_true key_classes.include?(Symbol) && (! key_classes.include?(String))
end
end
# Copied and slightly modified from https://github.com/keithrbennett/trick_bag
# (https://github.com/keithrbennett/trick_bag/blob/master/lib/trick_bag/io/temp_files.rb).
#
# For the easy creation and deletion of a temp file populated with text,
# wrapped around the code block you provide.
#
# @param text the text to write to the temporary file
# @param file_prefix optional prefix for the temporary file's name
# @yield filespec of the temporary file
def temp_file_containing(text, file_prefix = '')
raise "This method must be called with a code block." unless block_given?
filespec = nil
begin
Tempfile.open(file_prefix) do |file|
file << text
filespec = file.path
end
yield(filespec)
ensure
File.delete(filespec) if filespec && File.exist?(filespec)
end
end
end
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