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test-case-macros

3.4.061M downloads/mofrondeus/test-case ↗New releases in your daily digest, changelog included.

Provides #[test_case(...)] procedural macro attribute for generating parametrized test cases easily

Last release 15 days ago
23 Sep 2026
Ships unpredictably
gaps range from 2 months to 2.9 years
Nearly every release is documented
notes for 10 of 10 stable releases
Nothing withdrawn
no release was ever pulled
4 years old
10 releases · first in 2022

Release timeline

10 releases since 2022

20222023202420252026

20222026

One column per quarter.

Releases

3.4.023 Sept 20262 sources agree
Adds test case number to automatically distinguish test cases with the same generated name ( #151 ) Instead of having a conflict in example like this:
Changelog

3.4.0

Changes

Adds test case number to automatically distinguish test cases with the same generated name (#151)
Instead of having a conflict in example like this:

#[test_case(42)] #[test_case("42")] fn cases_are_enumerated(value: impl std::fmt::Display) { assert_eq!("42", &value.to_string()) }

It now generates prefix name for each test case. In all cases:

test cases_are_enumerated::test_case_1_42_expects ... ok test cases_are_enumerated::test_case_2_42_expects ... ok

Inverts the left and right output for simple test cases.
Generates assert_eq!(result, expectation) instead of previous assert_eq!(expectation, result);

Upgrades edition to 2024

Updates:

regex to 1.9

insta to 1.43

itertools to 0.15

syn to 3.0

From the same repository

frondeus/test-case

3.3.017 Nov 2023

Fix test_matrix example that does not compile in README by @ollien in #133

What's Changed

Fix test_matrix example that does not compile in README by @ollien in #133
Add the ability to have comments in matrix tests by @ollien in #132
Remove proc-macro-error dependency by @tamird in #136
.github: replace actions-rs with dtolnay/rust-toolchain, add caching by @tamird in #137

New Contributors

@tamird made their first contribution in #134
@ollien made their first contribution in #133

Full Changelog: v3.2.1...v3.3.0

Open source →

Additional notes

Features

Allow comments in test-matrix macro (#132)

Improvements

Drop proc-macro-error dependency & improve error messages (#136)

Open source →

3.2.117 Sept 2023

Ensure that test-case targets latest core and macros subcrates.

Update syn dependency
Ensure that test-case targets latest core and macros subcrates.

Full Changelog: v3.2.0...v3.2.1

Open source →

Additional notes

Improvements

Update syn dependency to 2.0
Ensure that test-case selects correct version of it's core and macros subcrates

Open source →

3.2.016 Sept 2023

Retain allow attribute in test_case macro by @JohnPeel in #127

What's Changed

Retain allow attribute in test_case macro by @JohnPeel in #127
Add test_matrix macro by @overhacked in #128

New Contributors

@JohnPeel made their first contribution in #127
@overhacked made their first contribution in #128

Full Changelog: v3.1.0...v3.2.0

Open source →

Additional notes

Features

Add test_matrix macro: generates test cases from Cartesian product of possible test function argument values (#128)

Improvements

Retain allow attributes on test functions (#127)

Open source →

3.1.02 Apr 2023

Set MSRV in Cargo.toml to 1.58.1 by @samueltardieu in #116

What's Changed

Set MSRV in Cargo.toml to 1.58.1 by @samueltardieu in #116
Set the span of test function Idents to the span of the origin attribute by @rpwachowski in #119

New Contributors

@samueltardieu made their first contribution in #116
@rpwachowski made their first contribution in #119

Full Changelog: v3.0.0...v3.1.0

Open source →

Additional notes

Features

Copy attribute span to generated test functions so that IDEs recognize them properly as individual tests

Improvements

Added LICENSE file to child crates

Open source →

3.0.013 Feb 2023

This crate provides the #[test_case] procedural macro attribute that generates multiple parametrized tests using one body with different input paramet

Overview

This crate provides the #[test_case] procedural macro attribute that generates multiple parametrized tests using one body with different input parameters.
A test is generated for each data set passed in the test_case attribute.
Under the hood, all test cases that share the same body are grouped into a mod, giving clear and readable test results.

Changes

Split out test-case-core crate, allowing easier reuse in external crates. By @evforde

IMPORTANT

Starting with the 3.0 release, we are changing test-case MSRV policy. We no longer can maintain our goal of only bumping MSRV with major SemVer releases partly due to how fast rust landscape changes and partly to how the rest of the rust ecosystem prefers instead not to keep MSRV breakage treated as SemVer breakage, making stricter policies hard to maintain with limited resources we have. The current goal is to support up to 3 of the latest stable releases.
We hope that with this change, we'll be able to speed up test-case's maintenance processes and add more features in the coming months.

Open source →

Additional notes

[IMPORTANT] Starting with 3.0 release we are changing test-case MSRV policy to support only 3 latest stable releases.