Blockchain as a modern, foundational, and highly secure technology empowers the digital transformations of several businesses. The World Economic Forum predicted that nearly 10% of the world GDP will be stored on blockchain systems by 2025. Moreover, it underpins the idea of a “trust economy” by creating a reliable environment where all participants feel confident about any asset of value transactions.

Software quality assurance (SQA) is the backbone of every successful project. Imagine you are just done with a mobile app development project and just pushed it into the market without proper testing. Now, the app is crashing in a real-time field environment where real people use it. You must validate the code, check the UI flow and ability to scale, evaluate use-case scenarios, perform API testing, identify performance bottlenecks and fix them to ensure that your application is ready to launch.

The core purpose of any type of software testing is to achieve zero bugs and improve the quality of the code. Do it often and as early as the project starts. You cannot afford software testing to be done too late in your project’s lifetime.

This article focuses on blockchain app testing and how you can improve your software’s quality to obtain better results.

Blockchain: What is it all about?

Blockchain Defined: 

According to Don & Alex Tapscott, authors of Blockchain Revolution (2016), “blockchain is an incorruptible digital ledger of economic transactions that can be programmed to record not just financial transactions but virtually everything of value.” 

What are key blockchain testing types?

  1. Public Blockchains – easy to set up, hard to manage, runs on individual economic incentive strategy based on Cryptocurrency.
  2. Private/Enterprise Blockchains – permissioned, easy to manage, participants know each other, no digital currency required.

Note: Focus on network security, private key management, smart contract vulnerabilities, and wallet security if you test a public blockchain. On the other hand, you should focus on component-level tests, infrastructure security, and identity management while evaluating a private blockchain application.

Blockchain applications involve a distributed ledger technology to create and maintain data records that make it impossible to change, cheat, or hack the system.

distributed ledger technology

Blockchain, a decentralized, digitized, and openly shared public ledger relies on a peer-to-peer distributed computer network. It is an ideal platform to create, manage and trade value-based assets with transparency, immutability, and without an intermediary. Blockchain components should be intact with each other to bring trust among the network participants.   

Pillars of Blockchain Technology

The primary and the most significant properties of blockchain technology, which help it gain widespread acclaim, include;  

  • Decentralization
  • Transparency
  • Immutability

Pillars of Blockchain Technology

With blockchain technology, all the network participants can access all records of information, and no one can make any changes to the data without the consent of other participants.   

Types of Blockchain App Testing:

Agile and DevOps practices are imperative in blockchain mobile app development and testing, but these are pretty different from traditional testing of software solutions.

The best practice-based suite of testing blockchain applications involves running the following core tests. So, here’s what each entails in a nutshell.  

Functional Testing

As the name implies, this holistic process is used to evaluate the work of different functional elements of the blockchain application. For example, smart contracts. It further divides into;

  1.       Transaction lifecycle
  2.       Smart contract testing
  3.       Peer gossip and block sync

Performance Testing

This process identifies the blockchain performance bottlenecks and suggests the methods to fix them and fine-tune the system. It indicates whether or not the blockchain app is ready to launch depending on the load, transaction latency, and overall system performance. It further includes;

  • Security Testing – Network integrity and penetration, identity theft
  • Recovery Testing – Crash and fault tolerance and failure recovery

API Testing

API (Application Programming Interface) testing demonstrates the quality of interaction between the applications used in developing the blockchain ecosystem. Furthermore, it ensures that all API requests and responses are appropriately configured and controlled.

Peer/Node Testing

QA engineers perform this specialized testing to maintain the integrity of the shared ledgers by achieving the consensus across all heterogeneous nodes on the network. In addition, this testing is essential to validate the synchronization of the network with other authorized peers.  

Pro Tip:
Keep your blockchain testing aligned to the technology layer in the blockchain app. It means you should give more importance to middleware (API) testing than UI-based testing.

Blockchain components testers should consider

In functional testing, software quality assurance experts should test the following components of a blockchain.    

  • Block Size
  • Chain Size
  • Transactions Load  
  • Data Transmission
  • New Block Attachment
  • Cryptographical Data
  • Multi-Layered Security

Tools for testing blockchain apps

Blockchain app testing is quite different from traditional testing of software solutions. However, similar logic and critical thinking still apply as used for testing non-blockchain software solutions.   

Blockchain testing tools can make the job easier and quicker for you. Here you go.

  • Ethereum Tester
  • Ganache (previously TestRPC)
  • Hyperledger Composer
  • Exonum Testkit
  • Corda Testing Tools
  • And many more.

Summing up

Blockchain as a revolutionary technology is genuinely a secure validation mechanism that brings all network participants the highest degree of accountability. There is no data abuse, no missed transactions, and zero human or machines errors. The success of blockchain adoption depends on its scalability, along with the integrity and security of each transaction validated through this platform. 

Blockchain application testing is vital to eliminate the bugs and defects in your decentralized ledger. Furthermore, continuous testing of blockchain applications is mandatory to establish trust among all the participants that they are using a secure validation mechanism for their value-based transactions. 

Are you looking for blockchain development and testing services?

ArhamSoft (Pvt) Ltd. is a leading blockchain development services provider with core expertise in all types of blockchain solutions, including smart contracts (Ethereum, BSC), Defi solutions (staking, liquidity, and farming), NFT marketplace, crypto games, and exchanges and more.