hevm Description
The hevm project serves as a tailored implementation of the Ethereum Virtual Machine (EVM) designed for tasks like symbolic execution, unit testing, and debugging of smart contracts. Created by DappHub, it seamlessly integrates with the suite of tools offered by the same developer. The hevm command line interface enables users to symbolically execute smart contracts, conduct unit tests, debug contracts interactively while displaying the Solidity source code, or execute any arbitrary EVM code. It allows computations to be carried out using a local state established within a testing framework or retrieved from live networks through RPC calls. Users can initiate symbolic execution with specified parameters to detect assertion violations and can also customize certain function signature arguments while keeping others abstract. Notably, hevm adopts an eager approach to symbolic execution, meaning that it initially strives to investigate all branches of the program. This comprehensive method enhances the reliability and robustness of smart contract development and testing.
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Solidity Fuzzing Boilerplate
The Solidity Fuzzing Boilerplate serves as a foundational template designed to simplify the fuzzing process for various components within Solidity projects, particularly libraries. By writing tests just once, developers can easily execute them using both Echidna and Foundry's fuzzing tools. In instances where components require different versions of Solidity, these can be deployed into a Ganache instance with the help of Etheno. To generate intricate fuzzing inputs or to conduct differential fuzzing by comparing outputs with non-EVM executables, HEVM's FFI cheat code can be utilized effectively. Additionally, you can publish the results of your fuzzing experiments without concerns about licensing issues by modifying the shell script to retrieve specific files. If you do not plan to use shell commands from your Solidity contracts, it is advisable to disable FFI since it can be slow and should primarily serve as a workaround. This functionality proves beneficial when testing against complex implementations that are challenging to replicate in Solidity but are available in other programming languages. It is essential to review the commands being executed before running tests in projects that have FFI activated, ensuring a clear understanding of the operations taking place. Always prioritize clarity in your testing approach to maintain the integrity and effectiveness of your fuzzing efforts.
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Tayt
Tayt serves as a fuzzer specifically designed for StarkNet smart contracts. It is advisable to utilize a Python virtual environment for this purpose. Upon initiation, users will be presented with the properties that need verification alongside the external functions employed to create a series of transactions. If any property is found to be violated, a detailed call sequence will be displayed, listing the order of function invocations, the arguments provided, the address of the caller, and any events triggered. Additionally, Tayt allows users to evaluate contracts that are capable of deploying other contracts, enhancing its utility in smart contract testing. This capability makes it an essential tool for developers looking to ensure the robustness and security of their smart contract implementations.
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Pricing
Pricing Starts At:
Free
Free Version:
Yes
Integrations
Company Details
Company:
DappHub
Website:
github.com/dapphub/dapptools/blob/master/src/hevm/README.md
Media
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Product Details
Platforms
Windows
Mac
Linux
Types of Training
Training Docs
Customer Support
Online Support
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