Wrong
mutant
| Wrong | mutant | |
|---|---|---|
| - | 5 | |
| 436 | 1,925 | |
| - | - | |
| 0.0 | 8.2 | |
| almost 4 years ago | 11 days ago | |
| Ruby | Ruby | |
| MIT License | Nonstandard |
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mutant
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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
What are some alternatives?
Knapsack - Knapsack splits tests evenly across parallel CI nodes to run fast CI build and save you time.
Ruby-JMeter - A Ruby based DSL for building JMeter test plans
Spring - Rails application preloader
Parallel Tests - Ruby: 2 CPUs = 2x Testing Speed for RSpec, Test::Unit and Cucumber
power_assert - Power Assert for Ruby
vcr - Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.
rspec-side_effects - RSpec extension for checking the side effects of your specifications.
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.