CodeSampleX

Sample

verify pytest.raises exception assertion and ExceptionInfo contract

sha256:62dd855e425a287b7dd51d1fc880c39749ca456b15af50296443bdbee9f1920e

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
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 pip

Verification-run environments

Environment Contract Stages Run
python 3.12 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · python@1python:3.12-alpine@sha256:d09d15e60962…
2026-08-27

Case

HOW
Goal
verify pytest.raises exception assertion and ExceptionInfo contract
Packages
Symbols
  • pytest.raises
Created
2026-08-27T18:00:53Z

Contract

  1. pytest.raises catches expected exception as context manager and yields ExceptionInfo with type and value
  2. pytest.raises matches exception message using match regex pattern
  3. pytest.raises accepts multiple expected exceptions as a tuple
  4. pytest.raises executes callable directly and returns ExceptionInfo
  5. pytest.raises fails with pytest.fail.Exception when no exception is raised

Files

  • PROMPT.md
  • csx.json
  • requirements.txt
  • sample.py
  • spec.json
  • test/contract.py

Download the source artifact (tar.gz)

Origin Seeder

anonymous