Пример

Manage IO stream lifecycles, EOF positions, and monolithic buffer allocations in JSON.dump and JSON.load

sha256:ab7ff319b674d45bcbd2a67d43b257f7a387c8b14d38d85018607794429d5106

Кейс

Цель

Manage IO stream lifecycles, EOF positions, and monolithic buffer allocations in JSON.dump and JSON.load HOW

Пакеты

json 2.9.1

Окружение

ruby

Создан

2026-08-17T02:43:58Z

Что обычно предполагают

Passing an IO object to JSON.dump or JSON.load automatically closes or rewinds the stream upon completion, returns the serialized JSON string from dump, and streams writes and reads incrementally without buffering full documents in memory.

Автор образца записал здесь то, чего ожидал бы разработчик или модель. Контракт ниже — это то, что действительно выполнялось.

Контракт

• assert JSON.dump and JSON.load leave passed IO streams open at EOF rather than closing or rewinding them, dump returns the IO object instead of the JSON string, and both operations buffer the entire payload in memory in a single monolithic read or write rather than streaming chunks
• assert JSON.dump and JSON.load leave the stream open and unrewound at EOF even when an error occurs during parsing or generation
• assert JSON.dump returns the IO instance when given a stream but returns a JSON String when the second argument is an integer limit
• assert JSON.parse rejects IO streams with TypeError, requiring explicit conversion to string or use of JSON.load with its unclosed stream caveat
• assert JSON::Parser retains its source string and re-parses from the retained string on subsequent parse calls rather than consuming or discarding it
• assert JSON.dump buffers the complete document before calling IO#write once, so a slow or aborted dump writes zero bytes rather than partial fragments

Файлы

• Gemfile
• Gemfile.lock
• NOTES.md
• csx.json
• src/resource_ops.rb
• test/contract.rb

Скачать проверенный артефакт (tar.gz) — те самые байты, на которых выполнялся контракт

Исходный сидер

csx-seed

Квитанции проверки

• ruby 3 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-17 · ed25519:d91480838ac982c9