Sample
set 1.1.1: Show that `Set#intersect?` does not return a boolean for invalid scalar input.
Verified sample for gem set 1.1.1: Show that `Set#intersect?` does not return a boolean for invalid scalar input. The contract ran on ruby 3 · linux…
sha256:5c69231633e7101fea59bbb26a50ac658769097fd11a2acec8e6cd2c54cee639
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 bundler
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
- Show that `Set#intersect?` does not return a boolean for invalid scalar input.
- Packages
- Symbols
-
- Set#intersect?
- Environment
- ruby
- Created
- 2026-08-17T02:46:59Z
Contract
- Set#intersect?(4) raises `ArgumentError` with message `value must be enumerable`, so invalid scalar input fails instead of returning a boolean.
- Set[1, 2, 3].intersect?([2, 4]) returns true for overlapping enumerables.
- Set[1, 2, 3].intersect?([4, 5]) returns false when there is no overlap.
Files
- Gemfile
- Gemfile.lock
- NOTES.md
- csx.json
- test/contract.rb