# nst/JSONTestSuite

A comprehensive test suite for RFC 8259 compliant JSON parsers

Repository: https://github.com/nst/JSONTestSuite
Canonical: https://ross.abutalabs.com/products/jsontestsuite
Language: C++
License: MIT
License Family: permissive
Last push: 2024-11-22T12:55:41+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3601, "days_push": 649, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1163, forks 177 (observed 2026-08-28T04:03:49.537258+00:00)

## What it is
A comprehensive test suite of JSON files for validating RFC 8259 compliant JSON parsers, with files named to indicate whether content must be accepted, rejected, or is implementation-defined. It includes wrapper scripts for many parsers and a Python runner that generates comparison results.

## Use cases
- test my  parser against a conformance suite
- check which  parsers accept invalid
- compare  parser implementations
- find edge cases in  parsing like huge numbers and duplicate keys
- validate rfc 8259 compliance of a  library
- run  parser tests and generate an html report

## When to choose
- you are building or testing a JSON parser and need a standard conformance test suite
- you want to compare how different JSON parsers handle edge cases
- you need known-good and known-bad JSON test files

## When to avoid
- you need a JSON parser or serializer library rather than test data
- you need testing for JSON Schema or JSON5 rather than strict RFC 8259 JSON

## Facets
- artifact type: dataset
- maturity: stable
- function: testing, parser, fuzzing
- domain: parsers, testing, developer-tools
- platform: cross-platform, python, cli
- tags: -parsing, test-suite, rfc-8259, conformance-testing, parser-comparison

## Member repositories
- nst/JSONTestSuite (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:49.537258+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:31:34.485016+00:00, confidence not recorded.
  - readme: https://github.com/nst/JSONTestSuite (fetched 2026-08-28T04:03:49.537258+00:00, sha 23adefb69351)
- Data as of 2026-08-30T08:39:29.467469+00:00.