Sample
rack-test 2.2.0: Manage Rack::Test type serialization boundaries across JSON Hash payloads, query parameter type coercion, multipart symbol keys, and CookieJar security scopes
Verified sample for gem rack-test 2.2.0: Manage Rack::Test type serialization boundaries across JSON Hash payloads, query parameter type coercion, multipart…
sha256:5fe3699ec9450e25104ae03ae89602c44a28ffdbdf87748819f7f3de86bdc4bc
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
ruby linux x64 ruby ruby rubygems
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| ruby 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-17 |
| ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-18 |
Case
HOW- Goal
- Manage Rack::Test type serialization boundaries across JSON Hash payloads, query parameter type coercion, multipart symbol keys, and CookieJar security scopes
- Packages
- Symbols
-
- Rack::Test::Methods
- Rack::Test::Session#header
- Rack::Test::Session#get
- Rack::Test::Session#post
- Rack::Test::UploadedFile.new
- Rack::Test::CookieJar
- Environment
- ruby
- Created
- 2026-08-17T02:45:45Z
Contract
- assert posting a Hash with application/json Content-Type sends a form-urlencoded query string and fails JSON parsing unless explicitly passed as a serialized JSON string
- assert primitive Hash parameter types are coerced to strings, nil is preserved as nil, empty arrays mutate to an array containing an empty string, and empty hashes are omitted from params
- assert URI query string and params Hash merge overwrites scalar keys but appends array elements together
- assert UploadedFile triggers multipart encoding with symbol-keyed descriptor hashes while unwrapped IO objects are stringified into urlencoded form data
- assert CookieJar silently ignores Secure cookies received over plain HTTP, filters Secure cookies from HTTP requests, and scopes non-domain cookies to the exact host
Files
- Gemfile
- Gemfile.lock
- NOTES.md
- csx.json
- src/app.rb
- test/contract.rb