cargo-mutants vs Infection
cargo-mutants
mutants.rs
Infection
infection.github.ioSide by side
| Figure | cargo-mutants | Infection |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| Plans published | 0 | 0 |
| Spec score · Mutation Testing Tools | 7.5 (#12) | 7.6 (#11) |
| Installation | The guide documents installation with `cargo install --locked cargo-mutants`, `cargo binstall`, or binaries from GitHub releases. | The maker documents PHAR, Phive, Composer, Git, and Homebrew installation methods. |
| Purpose | cargo-mutants is a mutation testing tool for Rust that finds places where bugs could be inserted without causing tests to fail. | Infection mutates PHP source code and reports changes that a test suite fails to catch. |
In their own words
cargo-mutants
cargo-mutants has no write-up on Specifiction yet; its figures are above.
Infection
Infection is a PHP mutation-testing library that shows which changes a test suite fails to detect. It creates mutants using predefined operators, runs tests against changed code, and records killed and escaped mutants, errors, and timeouts. Its Mutation Score Indicator measures the share of generated mutations detected by tests; it also reports Mutation Code Coverage and Covered Code Mutation Score Indicator. Infection supports PHPUnit, PhpSpec, Codeception, and Testo, and runs from the command line at a project root. Teams can run mutated tests in parallel, focus analysis on touched lines or files, and set minimum mutation-score thresholds that fail a build. The homepage describes more than 100 mutators grouped into profiles and allows custom mutators. Optional PHPStan and Mago integrations can help catch escaped mutants involving type violations, dead code, and unreachable paths. Installation options include PHAR, Phive, Composer, Git, and Homebrew. A browser playground supports trying PHP code and tests without installing the tools. Infection is free under the BSD-3-Clause license and requires PHP 8.3 or newer plus Xdebug, phpdbg, or pcov.