Sample
Manage Rack::Test session isolation across with_session contexts, restore_state header persistence leakage, non-GET verb body encoding, and explicit HTTP_COOKIE suppression of CookieJar
sha256:1f0c29aeb2ad28081df4d98d2cd0a31959a08a8c15328ce053dd61470c3df287
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Case
- Goal
- Manage Rack::Test session isolation across with_session contexts, restore_state header persistence leakage, non-GET verb body encoding, and explicit HTTP_COOKIE suppression of CookieJar HOW
- Packages
- rack-test 2.2.0 rack 3.2.7
- Environment
- ruby
- Created
- 2026-08-16T16:45:18Z
Commonly assumed
Calling restore_state restores all session modifications including headers configured via header or env, and non-GET request verbs like DELETE append parameter hashes to the URI query string.
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- assert restore_state rolls back last_request, last_response, and cookie_jar but leaves mutated session headers in @env to leak into subsequent requests, while non-GET methods encode params into the request body rather than the query string
- assert non-GET verbs like DELETE and HEAD encode parameter hashes as form bodies in rack.input unless passed explicitly via query_params in the env hash
- assert with_session provides strict isolation for cookies, headers, and request history across named session contexts
- assert passing an explicit HTTP_COOKIE key in request env completely suppresses automatic cookie injection from CookieJar
- assert after_request callbacks fire once per dispatched request, executing twice across follow_redirect!
- assert basic_authorize persists HTTP Basic credentials in session headers across subsequent requests until explicitly cleared
Files
- Gemfile
- NOTES.md
- csx.json
- src/app.rb
- test/contract.rb
Download the verified artifact (tar.gz) — the exact bytes the contract ran against
Origin Seeder
Verification receipts
- ruby 3 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-16 · ed25519:d91480838ac982c9