9aoy

🦀 Rstack contributor, Rstest maintainer

[Rspack @rspack_dev]

🦀 Rspack 2.1 is here!

⚡️ 16% faster builds than 2.0
⚛️ Rust React Compiler: 7–13× faster than Babel
🎨 Improved built-in CSS
📂 import.meta.glob
🔵 TypeScript 7 RC support
🧩 Source Phase Imports

[Rspack @rspack_dev]

🆕 Rstest now supports per-file environment overrides via comments 🦀

Need `jsdom` or `happy-dom` for a specific UI test?

Just add a simple docblock comment~

/**
* @rstest-environment jsdom
*/

[Jiahan Chen @jiahan_c]

Rstest was nominated for this year's Productivity Booster award at JSNation 🎉

Here's the video shown on stage, made by @fi3ework27 with @Remotion (which is also powered by Rspack)

[9aoy @9ao_y]

@bedesqui Rstest in-source tests are collected at runtime; top-level is not a requirement by design, but in practice it is the only reliably safe execution shape.

[Rspack @rspack_dev]

❓Did you know you can write “in-source tests” in JavaScript

Rstest supports in-source tests — write your test right next to the code. Test code is stripped in production builds. Zero bundle cost. ⚡️

Rust-style DX, now in your JS toolchain 🦀
#JavaScript #Rstest #Rspack

[9aoy @9ao_y]

@J4C0B_HEX @rspack_dev Targeting 1.0 in Q3 🚀

[9aoy @9ao_y]

@BleedingDev @rspack_dev It’s already there 👀
Modern.js fully supports Rstest — you can start using it directly. https://t.co/6vg6L527vS

[Rspack @rspack_dev]

🦀Rstest 0.10.0 released! 🚀
Faster. Leaner. More reliable~

⚡ worker_threads-based pool
🎯 --changed / --related test runs
💾 Persistent build cache
🧠 Memory-aware worker spawn
🔇 Silent passed test consoles
🔍 Profile test runs with --trace

[Rspack @rspack_dev]

Rspack 2.0 has landed 🦀

The growth since 1.0 is wild:

📈 100K → 5M weekly downloads
⚡️ ~100% faster builds
📉 devServer: 192 deps → 1

And new stuff hits hard:

🧩 Pure ESM core, modern ESM library output
⚛️ Experimental RSC support
...

Lean, Fast, Modern Web Bundling 🚀

[Jiahan Chen @jiahan_c]

Rstest sits in between, with isolation enabled by default 👀

[Rspack @rspack_dev]

Introducing Rstack Agent Skills:

- rspack-best-practices
- rspack-v2-upgrade
- rspack-debugging
- rsbuild-best-practices
- rspress-v2-upgrade
- rsdoctor-analysis
- migrate-to-rsbuild
- migrate-to-rstest
- more...

https://t.co/EnaGg38Liu

[9aoy @9ao_y]

🤖: I want it.

[fi3ework#2 @fi3ework27]

logs for humans.
markdown for agents.
Rstest 0.8.2 introduces an agent-first reporter.

https://t.co/Uy0D9kb3mC

[Soon @Soon_Iter]

🚀 Rspress 2.0 just dropped!

✨ A brand-new, readability-first theme
🤖 AI-native: built-in `llms.txt` & SSG-MD generation
⚡ Instant dev startup with lazyCompilation and persistentCache
🎨 Shiki code highlighting with transformers

Read more👉 https://t.co/HDXSkFjxyU

[9aoy @9ao_y]

Browser Mode shipped in Rstest v0.8.0.

What features would you most like to see in the next minor release 👀

[fi3ework#2 @fi3ework27]

Rstest 0.8.0 dropped.
browser mode: Playwright + real browsers + built-in UI. experimental for now, we’re still in the warm-up lap. 😎

https://t.co/qY7KvXQ5SJ

[Jiahan Chen @jiahan_c]

Rstest → SWC core 🎉

2.3s →1.7s (35% faster than Jest)

[9aoy @9ao_y]

@SergeyGultyayev @jait_chen yes, rstest enables file-level isolation by default.

[Jiahan Chen @jiahan_c]

Rspack has tons of complex tests. We just migrated from Jest to Rstest and saw about a 30% speed boost. ⚡️

If you’ve been thinking about trying Rstest, now might be a good time to give it a shot.

[9aoy @9ao_y]

@fi3eworkX 😂

[9aoy @9ao_y]

Rstest v0.4.0 ships with code coverage support 🚀

[9aoy @9ao_y]

Looking forward to it! Barrel file optimization will significantly help with Rstest testing speed, especially when testing components.

[Jiahan Chen @jiahan_c]

Super excited for the upcoming Rsbuild 1.5. We're enabling several Rspack experimental features by default:

⚡ Barrel file optimization → faster builds
✨ Lazy compilation for dynamic imports → faster dev startup
🎯 Inline const for TS enums → smaller bundles