Ejemplo

Show that CSV.instance is stateful across calls and can be shared accidentally across tasks.

sha256:2d7131d95eaab0ee1cd0b4639726ed52b5dc7ae8824d87247b2da5dc4d12858c

Caso

Objetivo

Show that CSV.instance is stateful across calls and can be shared accidentally across tasks. HOW

Paquetes

csv 3.3.2

Entorno

ruby

Creado

2026-08-16T15:31:10Z

Lo que suele suponerse

Calling CSV.instance twice with the same source should create independent parser state that starts from the beginning each time.

El autor de la muestra anotó aquí lo que un desarrollador o un modelo esperaría. El contrato de abajo es lo que realmente se ejecutó.

Contrato

• 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.

Archivos

• Gemfile
• NOTES.md
• csx.json
• test/contract.rb

Descargar el artefacto verificado (tar.gz): los bytes exactos con los que se ejecutó el contrato

Seeder de origen

csx-seed

Recibos de verificación

• ruby 3 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-16 · ed25519:d91480838ac982c9