Upgraded Slither-mutate

[vishnuram1999]

Description

slither-mutate is a mutation testing tool for evaluating the test suites of solidity-based smart contracts.

Features

The tool addresses issues faced while using the well-known mutation testing tool, the Universal Mutator.

• Utilizes slither-generated AST for generating mutants by replacing keywords, operators, conditions, and more. This approach ensures that comments are excluded and minimizes the likelihood of producing Solidity code that cannot be compiled.
• Encompasses diverse mutators categorized by severity, preventing the generation of less severe mutants when highly severe mutants are valid. This not only enhances efficiency but also reduces runtime.
• Incorporates fail-fast or bail feature for test commands, optimizing execution speed.
• Facilitates the creation of new mutators using existing templates, providing flexibility and extensibility to the mutation process.

Link

README explains the usage and available CLI arguments.

[CLAassistant]

All committers have signed the CLA.

[0xalpharush]

Just did a quick pass.

I'd like to add a CI integration test like the ones in scripts/ that runs each mutant over a foundry codebase. (This would involve creating scripts/ci_test_mutate.sh and adding "mutate" to this list so that it's run in CI.

It'd also be nice to have an input-output pair for each mutant type to know what it is expected to do and to "lock-in" its behavior and make it so that reviewers can catch regressions in future PRs. Our detector tests use pytest-insta to perform snapshot/golden testing and that may work nicely for this.

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