docs(blog): GSoC 2026 wrap-up - Comprehensive Test Suite for Format Validation - #2455
docs(blog): GSoC 2026 wrap-up - Comprehensive Test Suite for Format Validation#2455vtushar06 wants to merge 6 commits into
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Covers the nine months leading into GSoC and the format validation work done during the coding period - 121 merged pull requests across the test suite and sourcemeta/core, the method used to find divergences, and the bugs reported upstream.
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… the proposal The cover was reusing the contributor spotlight graphic, which shows other people and does not read as a title image. Replaced with a banner built from the two project logos. Also links the GSoC proposal and credits the triage invite correctly.
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@vtushar06 Good start! What I would advise is to keep the story about your GSoC acceptance, why JSON Schema, etc for i.e. a Medium post on your own blog. Instead, here, you can keep it more JSON Schema and outcome oriented, for a different audience. For example:
So essentially, here, the readers will not care much about your specific story, but more about what the impact of the work you did has and why it matters, even if you were not a GSoC student at all (that can remain just a mention in the intro). In other words, about the outcome of the work. Whereas on i.e. your Medium blog, the might care more about the journey. So if you do both, they could complement quite well |
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okayy @jviotti, that's a cleaner split. so now I am moving the story to my own blog and reworking this one to be outcome and numbers focused as you mentioned updating now. |
Per review feedback - moves the personal story out (kept for a separate Medium post) and rewrites this one around what the project produced: the RFC-grounded method, 87 cross-implementation findings across 13 formats, 9 upstream bugs filed and accepted, and a before/after chart of published test coverage per format (618 -> 838 tests, git-verified against the suite's history at the coding period's start and now).
jdesrosiers
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Looks good, but check the images added. I think some of them aren't needed anymore after the rewrite.
…xt, drop unused images - Explain how the findings distribute across implementations and why: python-jsonschema's delegation to third-party format libraries, and the anchor class that recurs across three languages for the same reason. - Say why only nine findings were filed upstream - the suite is the right channel for the rest. - Add context on sourcemeta/core: the project was mentored by its maintainer, so format support and coverage were built there alongside the suite. - Remove the acceptance, midterm and spotlight images, unused since the rewrite.
Per review, disclose every validator that had a problem in one place: 29 JSON Schema validators, 270 documented findings, broken down by format. Separates the JSON Schema validators from the underlying libraries they delegate to, states what the counts are and are not, and notes why sourcemeta/core does not appear.
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sorry for too many review 😅 |
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Pull request overview
Adds a new GSoC 2026 wrap-up blog post describing the work to build a more comprehensive format test suite by validating format behaviors against their governing RFCs, along with the post’s image assets and author avatar.
Changes:
- New blog post:
gsoc26-format-test-suite.md(GSoC 2026 “format” test suite wrap-up). - Adds/uses post images under
public/img/posts/2026/gsoc26-tushar/(banner + growth chart). - Adds author avatar
public/img/avatars/vtushar06.jpg.
Reviewed changes
Copilot reviewed 1 out of 4 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
| pages/blog/posts/gsoc26-format-test-suite.md | New GSoC 2026 wrap-up post content, frontmatter metadata, and embedded chart image. |
| public/img/posts/2026/gsoc26-tushar/gsoc26-banner.png | Cover/banner image referenced by the post frontmatter. |
| public/img/posts/2026/gsoc26-tushar/format-growth-chart.png | Inline chart image referenced in the post body. |
| public/img/avatars/vtushar06.jpg | Author avatar referenced by the post frontmatter. |
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Seven more suite PRs merged since the last push. Test counts move from 618 -> 843 (+225), merged totals to 107 suite plus 23 core, and three still in review. Chart regenerated to match.
jviotti
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Super! Reads much better and interesting IMHO. Great job!
What kind of change does this PR introduce?
Content. A new blog post, plus its cover banner and a chart. No code changes.
Issue Number:
Screenshots/videos:
The post embeds one chart,
format-growth-chart.png, showing publishedformattest counts per format before and after the project. The cover is a banner built from the JSON Schema and GSoC logos.If relevant, did you update the documentation?
Not applicable.
Summary
A report on the GSoC 2026 project that tested JSON Schema's
formatkeyword against the RFCs the specification delegates to.Following review feedback, the post is written as a technical findings report rather than a personal GSoC recap - the story side is going on my own blog separately.
What it covers:
formatis hard to get right: the specification delegates each format to a different RFC, so it is really eighteen grammars behind one keyword.formattests went from 618 to 843 (+225). 130 merged pull requests - 107 in JSON-Schema-Test-Suite, 23 in sourcemeta/core - with 3 still in review.Project idea: community#965. Mentors: @jviotti and @jdesrosiers.
Files:
pages/blog/posts/gsoc26-format-test-suite.mdpublic/img/posts/2026/gsoc26-tushar/- cover banner and the growth chartpublic/img/avatars/vtushar06.jpg- author photoType is
Engineering, taggedNews. It wasCommunityin the first draft, when the post was a GSoC recap; after the rewrite the content is a technical report, soEngineeringfits better. Happy to switch it back if you disagree.Does this PR introduce a breaking change?
No.
Checklist