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Setting up Ethereum Tester for Blockchain Testing | Blockchain Developers Guide

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.

The post Setting up Ethereum Tester for Blockchain Testing | Blockchain Developers Guide appeared first on blockchain.



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Setting up Ethereum Tester for Blockchain Testing | Blockchain Developers Guide

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