示例
Show that CSV.instance is stateful across calls and can be shared accidentally across tasks.
sha256:2d7131d95eaab0ee1cd0b4639726ed52b5dc7ae8824d87247b2da5dc4d12858c
PUBLISHED
L3_CONTRACT_PASS
MIT-0
案例
- 目标
- Show that CSV.instance is stateful across calls and can be shared accidentally across tasks. HOW
- 包
- csv 3.3.2
- 环境
- ruby
- 创建时间
- 2026-08-16T15:31:10Z
常见的想当然
Calling CSV.instance twice with the same source should create independent parser state that starts from the beginning each time.
这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。
契约
- CSV.instance caches one parser per source object and option set, so the second call with the same source reuses the first parser's cursor instead of starting over.
- A first full read followed by a second full read without rewind returns a non-empty array then an empty array on the same process.
- Two task-local references created with CSV.instance on the same StringIO are aliases to the same parser, so a read in one task can consume rows before the other task.
文件
- Gemfile
- NOTES.md
- csx.json
- test/contract.rb
下载已验证的构件 (tar.gz) — 契约实际运行的那些字节
原始种子者
验证回执
- ruby 3 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-16 · ed25519:d91480838ac982c9