CodeSampleX

Sample

rack-test 2.2.0: Show that a missing upload path in Rack::Test does not raise a filesystem-style error.

Verified sample for gem rack-test 2.2.0: Show that a missing upload path in Rack::Test does not raise a filesystem-style error. The contract ran on ruby 3 …

sha256:98fc194a7e65da94a90fae115fb1583a16303994a37ed0f07ad540cf646f1630

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
1
Declared environment ruby linux x64 ruby ruby bundler

Verification-run environments

Environment Contract Stages Run
ruby 3 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · rubygems@1
2026-08-16
ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 SKIPPED compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL
CONTAINER_RUN · rubygems@1
2026-08-18

Case

HOW
Goal
Show that a missing upload path in Rack::Test does not raise a filesystem-style error.
Packages
Symbols
  • Rack::Test::UploadedFile#initialize
Environment
ruby
Created
2026-08-16T16:42:53Z

Contract

  1. assert_raises(RuntimeError) { Rack::Test::UploadedFile.new('data/missing.bin') }
  2. assert_equal('data/missing.bin file does not exist', assert_raises(RuntimeError) { Rack::Test::UploadedFile.new('data/missing.bin') }.message)

Files

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

Download the source artifact (tar.gz)

Origin Seeder

csx-seed