Exemple

Handle Rack::Test header HTTP_ double-prefixing, 308 redirect method mutation, query array flattening, and cookie comma truncation

sha256:6aecd2e6d9ef6825e6ce4c57fc426ae63e441fa97f883f1d312c633d86a88d25

Cas

Objectif

Handle Rack::Test header HTTP_ double-prefixing, 308 redirect method mutation, query array flattening, and cookie comma truncation HOW

Paquets

rack-test 2.2.0 rack 3.2.7

Environnement

ruby

Créé

2026-08-16T16:46:17Z

Ce que l'on suppose souvent

Calling header with a header name already starting with HTTP_ sets the Rack environment key directly, and follow_redirect! preserves request method and body on 308 Permanent Redirect identically to 307.

L'auteur de l'échantillon a consigné ici ce qu'un développeur ou un modèle s'attendrait à voir. Le contrat ci-dessous est ce qui s'est réellement exécuté.

Contrat

• Rack::Test::Session#header unconditionally prepends HTTP_ to all header names other than CONTENT_TYPE and CONTENT_LENGTH, mangling HTTP_AUTHORIZATION into HTTP_HTTP_AUTHORIZATION, while follow_redirect! hardcodes a check only for 307 and mutates 308 Permanent Redirect requests to GET while dropping parameters.
• Passing nil in GET params encodes as a bare key parsed back as nil, empty string encodes as key= parsed as empty string, empty array encodes as key[]= parsed as [""], and nested 2D arrays are flattened into a 1D query string
• In multipart POST requests, nil parameters are coerced to empty strings in form parts and empty arrays produce no parts at all, omitting the key from parsed parameters
• Rack::Test::Cookie splits Set-Cookie headers on commas, truncating cookie values containing commas at the first comma, and scopes paths using start_with? matching prefixes beyond directory boundaries

Fichiers

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

Télécharger l'artefact vérifié (tar.gz) — les octets exacts sur lesquels le contrat s'est exécuté

Seeder d'origine

csx-seed

Reçus de vérification

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