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testthat. An R 📦 to make testing 😀

testthat.r-lib.org

Problem

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Audience

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Market

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Pricing

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Updates

March 2026

Use better wording in `expect_setequal()` output (#2318) Mar 2
Tiny typo: amend 'expect use only' to 'expert use only' in skip helpf… Mar 2

January 2026

Rework `run_cpp_tests()` to avoid testthat internals (#2315) Jan 22
Update to CRAN vctrs snapshots (#2316) Jan 21
Increment version number to 3.3.2.9000 Jan 12
Release —testthat 3.3.2 Jan 12
Increment version number to 3.3.2 Jan 8
Check revdeps Jan 8
Fix version bump mistake Jan 8
Polish news Jan 8
Restore pre-3.3 `local_snapshotter()` argument order (#2309) Jan 8
Alphabetise news bullet Jan 8
`use_claude_code()` Jan 7
Add an LLM focussed reporter, and use it when appropriate (#2305) Jan 7
Enhance OO mocking (#2303) Jan 7
Report base error class (#2307) Jan 7
Always report success/failure count (#2298) Jan 7
Polish `snapshot_download_gh()` (#2306) Jan 7
Reformat Jan 6
Correct {cli} markup for informative failure (#2296) Jan 6
Use `expect_snapshot()` for vctrs error (#2301) Jan 6

November 2025

Release —testthat 3.3.1 Nov 26
Release —testthat 3.3.0 Nov 13

January 2025

Release —testthat 3.2.3 Jan 13

December 2024

Release —testthat 3.2.2 Dec 10

December 2023

Release —testthat 3.2.1 Dec 2

October 2023

Release —testthat 3.2.0 Oct 7

July 2023

Release —testthat 3.1.10 Jul 7

June 2023

Release —testthat 3.1.9 Jun 16

May 2023

Release —testthat 3.1.8 May 4