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Klara: Python automatic test generations and static analysis library
reddit.com/r/Python | 2021-09-13
The main difference that Klara bring to the table, compared to similar tool like pynguin and Crosshair is that the analysis is entirely static, meaning that no user code will be executed, and you can easily extend the test generation strategy via plugin loading (e.g. the options arg to the Component object returned from function above is not needed for test coverage).
Pynguin – Allow developers to generate Python unit tests automatically
news.ycombinator.com | 2021-05-31
Just in case you are looking for an alternative approach: if you write contracts in your code, you might also consider crosshair  or icontract-hypothesis . If your function/method does not need any pre-conditions then the the type annotations can be directly used.
(I'm one of the authors of icontract-hypothesis.)
Programming in Z3 by learning to think like a compiler
news.ycombinator.com | 2021-05-03
There's a tool for verification of Python programs based on contracts which uses Z3: https://github.com/pschanely/CrossHair
You can use it as part of your CI or during the development (there's even a neat "watch" mode, akin to auto-correct).
Diff the behavior of two Python functions
news.ycombinator.com | 2021-01-18
Finding Software Bugs Using Symbolic Execution
news.ycombinator.com | 2020-12-23
Looking at some of your SMT-based projects, I'd love to compare your SMT solver notes with my mine from working on https://github.com/pschanely/CrossHair
Sadly, there aren't a lot of resources on how to use SMT solvers well.
What are some alternatives?
pynguin - The PYthoN General UnIt Test geNerator is a test-generation tool for Python
echidna - Ethereum smart contract fuzzer
molecule - Molecule aids in the development and testing of Ansible roles
klara - Automatic test case generation for python and static analysis library
solc-select - Manage and switch between Solidity compiler versions