Abstract
One of the most essential concepts related to the development of Blockchain oriented software is smart contracts. Once deployed on the blockchain, these pieces of code cannot be altered due to the immutability feature of the blockchain technology. Therefore, it is necessary to verify and validate smart contracts before their deployment. This paper presents a model-based testing approach for validating and checking the correctness of Ethereum smart contracts. The adopted process comprises essentially four steps: (1) modelling the smart contract and its blockchain environment as UPPAAL Timed Automata, (2) generating abstract test cases by UPPAAL CO\(\surd \)ER tool, (3) executing in a dynamic manner the generated test cases, and finally (4) analyzing the obtained test results and generating test reports. To illustrate our proposal, we apply it on Ethereum Blockchain and especially on the electronic voting case study.
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Notes
- 1.
https://solidity.readthedocs.io/.
- 2.
Some test cases fail but there is no bug and the program is working correctly.
- 3.
The number of Wei owned by this address.
- 4.
The hash of the EVM code of this account.
- 5.
The hash of the root node of a Merkle Patricia tree encoding the storage contents of the account.
- 6.
http://user.it.uu.se/ hessel/CoVer/index.php.
- 7.
A test case should traverse all edges of a given timed automaton.
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Hammami, M.A., Lahami, M., Maâlej, A.J. (2023). Towards a Dynamic Testing Approach for Checking the Correctness of Ethereum Smart Contracts. In: Kallel, S., Jmaiel, M., Zulkernine, M., Hadj Kacem, A., Cuppens, F., Cuppens, N. (eds) Risks and Security of Internet and Systems. CRiSIS 2022. Lecture Notes in Computer Science, vol 13857. Springer, Cham. https://doi.org/10.1007/978-3-031-31108-6_7
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