Side by side
MutPy vs pymute
Both stand on mutation testing tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxSelf-hosted
MutPy provides mutation controls, coverage analysis, and reports for evaluating Python tests. Its listed release is old, and teams using pytest should account for its experimental status.
Visit MutPy Free plan Linux
pymute provides configurable mutation testing for Python with pytest or tox, plus parallel execution and surviving-mutant reports. Before adopting it, account for the Rust and Cargo requirement, the pytest project layout constraint, and the disk space used by parallel threads.
Visit pymuteThe facts
| MutPy | pymute | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Self-hosted | Linux |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | github.com | github.com |
| On mutation testing tools | #14 of 25 | #18 of 25 |
MutPy: what it does well
- Applies mutations at the abstract syntax tree level.
- Generates YAML and HTML reports.
- Can restrict mutations to code covered by tests.
- Supports higher order mutations and coverage analysis.
What to know first
- The latest listed release is version 0.6.1 from 2019.
- The pytest runner is experimental.
- Disabling stdout can damage tests that use sys.stdout.
pymute: what it does well
- Free to use; installation is through Cargo.
- Supports pytest and tox test runners.
- Offers six documented mutation categories.
- Can select tests and limit mutations by module.
- Can run mutants in parallel.
What to know first
- Requires Rust and Cargo.
- Pytest requires root-based tests on local project copies.
- Tox setup is considerably slower.
- Parallel threads need temporary disk space.