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Mutant Alternatives
Similar projects and alternatives to mutant
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scalar
Scalar: A set of tools and extensions for Git to allow very large monorepos to run on Git without a virtualization layer (by microsoft)
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CodeRabbit
CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.
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vcr
Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.
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timecop
A gem providing "time travel", "time freezing", and "time acceleration" capabilities, making it simple to test time-dependent code. It provides a unified method to mock Time.now, Date.today, and DateTime.now in a single call.
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Wrong
Wrong provides a general assert method that takes a predicate block. Assertion failure messages are rich in detail.
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Knapsack
Knapsack splits tests evenly across parallel CI nodes to run fast CI build and save you time. (by ArturT)
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better mutant alternative or higher similarity.
mutant discussion
mutant reviews and mentions
Posts with mentions or reviews of mutant.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-07-17.
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An ex-Googler's guide to dev tools
There's a pretty good Ruby gem I've used for this before:
https://github.com/mbj/mutant
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Code coverage vs mutation testing.
You should only really care about mutation testing if your code coverage is relatively high. If your code coverage is 20% then mutation testing should not be your priority. We use mutation testing (mutant for Ruby, pitest for Java). mutant is pretty hassle-free but only works when running under MRI so if you use jruby you are out of luck. pitest was far less easy to integrate.
- Mutant – Automated code reviews via mutation testing – semantic code coverage
- Automated code reviews via mutation testing - semantic code coverage.
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Semantic blind spot in Ruby case statement
mutant shows redundant semantics, why we'd like to reduce them is perhaps better explained at https://github.com/mbj/mutant#what-is-mutant
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A note from our sponsor - SaaSHub
www.saashub.com | 19 Mar 2025
Stats
Basic mutant repo stats
5
1,967
6.2
about 1 month ago
mbj/mutant is an open source project licensed under Nonstandard which is not an OSI approved license.
The primary programming language of mutant is Ruby.
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