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#!/usr/bin/env tarantool
local json = require('json')
local tap = require('tap')
--
-- gh-4761: json.decode silently changes instance settings when
-- called with 2nd parameter.
--
-- Verify json.encode as well.
--
local res = tap.test('gh-4761-json-per-call-options', function(test)
test:plan(2)
-- Preparation code: call :decode() with a custom option.
local ok, err = pcall(json.decode, '{"foo": {"bar": 1}}',
{decode_max_depth = 1})
assert(not ok, 'expect "too many nested data structures" error')
-- Verify that the instance option remains unchanged.
local exp_res = {foo = {bar = 1}}
local ok, res = pcall(json.decode, '{"foo": {"bar": 1}}')
test:is_deeply({ok, res}, {true, exp_res},
'json instance settings remain unchanged after :decode()')
-- Same check for json.encode.
local nan = 1/0
local ok, err = pcall(json.encode, {a = nan},
{encode_invalid_numbers = false})
assert(not ok, 'expected "number must not be NaN or Inf" error')
local exp_res = '{"a":inf}'
local ok, res = pcall(json.encode, {a = nan})
test:is_deeply({ok, res}, {true, exp_res},
'json instance settings remain unchanged after :encode()')
end)
os.exit(res and 0 or 1)
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