Sample
csv 3.3.2: Handle silent behavioral shifts across modern Ruby CSV versions including liberal_parsing backslash quote unescaping, CSV::Row#to_h duplicate header first-wins resolution, delimiter whitespace stripping, quote_empty nil versus empty string roundtripping, and built-in :time conversion
Verified sample for gem csv 3.3.2: Handle silent behavioral shifts across modern Ruby CSV versions including liberal_parsing backslash quote unescaping…
sha256:bd2f2439031898f70ac4d8c0be64eb855887b222f9e161cb86cb4feeca7ebddb
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 rubygems
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
- Handle silent behavioral shifts across modern Ruby CSV versions including liberal_parsing backslash quote unescaping, CSV::Row#to_h duplicate header first-wins resolution, delimiter whitespace stripping, quote_empty nil versus empty string roundtripping, and built-in :time conversion
- Packages
- Symbols
-
- CSV.parse_line
- CSV.parse
- CSV.generate_line
- CSV::Row#to_h
- Environment
- ruby
- Created
- 2026-08-16T15:32:40Z
Contract
- assert liberal_parsing: true preserves backslash-escaped quotes literally whereas liberal_parsing: {backslash_quote: true} unescapes them
- assert CSV::Row#to_h resolves duplicate headers with first-wins semantics whereas standard Ruby row.to_a.to_h resolves with last-wins
- assert delimiter whitespace is preserved by default causing header lookups to fail unless strip: true is explicitly enabled
- assert quote_empty: true serializes empty string as quoted "" and nil as unquoted so CSV.parse_line faithfully round-trips both types
- assert converters: :time parses ISO timestamps into Time instances whereas converters: :date_time parses into legacy DateTime instances
Files
- Gemfile
- NOTES.md
- csx.json
- test/contract.rb