Setting up Ethereum Tester for Blockchain Testing | Blockchain Developers Guide

Published : Nov 22, 2018

Setting up Ethereum Tester for Blockchain Testing

  • Testing Blockchain Applications

    Blockchain contains the list of records in a chain of blocks that are made secure using cryptography. Each block comes with a unique cryptographic hash for previous blocks also validates and allows seeing transactions details between two or more participants. The blockchain is managed through the P2P (peer-to-peer) network for addressing a protocol and creating new blocks of information.

    The testing of the application takes place based on the functionality of Blockchain, which the test engineer does, such as:

    • Functional testing
    • Integration testing
    • Performance testing (Jmeter tool required)
    • Security testing

    Ethereum Test Tools (to execute the code)

    Ethereum Tester:
    Some codes are executed to check the cases. Please, click on the link Ethereum Tester, it provides a tool for testing the Ethereum blockchain based applications. 

    Input/output Data Format:

    The Ethereum library utilizes this format:

    • Hexadecimal values are referred to as the text strings, not bytes.
    • The address comprises of mixed-alpha characters which verify the checksummed address, specified by EIP-55.
    • 32-byte of hashcode is hexadecimal encoded.
    • Numeric values will be providing integer portrayal

    Block Number:-
    The parameter will undertake the given value.

    • 'latest':- for newly mined block
    • 'pending':- for existing un-mined blocks
    • 'earliest':- for genesis blocks

    Installation code:- pip install eth-tester

    Development code:- pip install -e . -r requirement-dev.txt
    Execute the code for testing:-py.test tests
    Otherwise, install tox to execute the test suite.

    Ethereum tester API utilized for automated scripts:-

    1) eth_tester.EthereumTester (backend=None, validator=None,
    normalizer=None, auto_mine_transactions=True, forks_blocks=none)

    2) backend: The backend chain that's being used.

    3) validator: The validator used.

    4) normalizer: the normalizer used.

    5) auto_mine_transactions:
    Transactions automatically:
    -allow auto mine transactions
    -disallow auto mine transactions

    6) fork_blocks:- Several Block number will be activated consisting of block network.

    Transaction sending:-

    1) from:- the address of the account being used to sending the transaction details (hexadecimal string).

    2) to:- the address of the account being used to receive the transaction.
    An empty string will be used to switch towards contract creation (hexadecimal string).

    3) gas:- to set the gas limit for transaction detail executed (integer).

    4) gas_price:- fix the price per unit of gas in wei that'll be paid for the transaction details executed (integer).

    5) value:- the number of ether in wei sent to others which give the transaction details (integer).

    6) data:- gives balance details of the transaction (hexadecimal string).

    For any suggestion or query, directly reach us, and you will find us at your disposal with the most appropriate solutions.

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