Features of Blockchain |Main Components of a Blockchain|Advantages of Blockchain|

Features of Blockchain 

Decentralized System:

Beneficial in Various Industries like finance, real estate Etc.

Better Security:

Utilizes multiple nodes to complete and authenticate transactions


Allows the unique algorithm to process data

Increased Capacity:

Increases the capacity of the entire Network

Main Components of a blockchain

Node Application
Each Node must install and run a computer application definitive to the ecosystem they want to participate in

Shared Ledger
A data structure(ledger) is handled inside the node application. Contents for the ecosystem are often viewed once the node application is in running state.

Consensus Algorithm
The consensus algorithm is implemented as a part of the node application, providing the ‘rules of the game’ for a way the ecosystem will reach one view of the ledger.

Virtual Machine
The abstraction of a machine operated with instructions and Implemented as a part of the node application that each participant m the ecosystem runs.

How Does Blockchain Work?

Advantages of Blockchain


Blockchain minimizes transaction time from days to minutes. The Transaction solution is quicker because it doesn’t demand verification by a central authority.


Blockchain Transactions are less handling. Participants can exchange items useful directly. Blockchain eliminates duplication of attainment because participants have access to a shared ledger.

Increase Security:

Blockchain’s security protection against fraud, and cybercrime.

Challenges in Blockchain Testing

Understanding Technology-

Blockchain may be a new technology and understanding the technology with domain knowledge is extremely important in testing Blockchain Application

Lack of Blockchain Testing Tools-

Blockchain-based implementation testing is all about tools. Selecting the proper tool as per application is one of the important decisions.

Defining Test Strategy-

Like all applications, designing Test Strategy for Blockchain application. it’s one of the biggest challenges as Test Strategy demands in-depth knowledge and understanding of the technology and application.

Block and Chain Size-

Alongside standard Testing, tools, and therefore the best practices in situ, Testing for block size and chain size is additionally important. Blockchain technology may get fail without proper validation of block size and chain size.

Integration Testing-

As there are multiple components involved within the Blockchain application, integration testing should be done properly and regularly to check that each one of the components is properly integrated to avoid any failures.

Performance and Load-

Failing to check for performance and cargo testing gives little or no insight into how the Blockchain application performs in both productions also as under specific workloads and network conditions.


Securing the info should be the foremost important within the Blockchain Application. Blockchain is often a part of various sectors like Health, finance, etc. any sort of malicious attacks can impact the Blockchain application

Phases of Blockchain Testing

Initiation Phase:
Understanding Blockchain Architecture:

During this phase, we understand and analyze business and functional requirements. This describes the behavior of the appliance and the way the user will interact with the appliance

Full Test Strategy Designing:

During this phase, we explain the testing approach for testing an application. this could be wiped out detail in order that every objective is fully covered.

Design Phase:
Test case Creation:

During this phase, the QA team writes the test cases with proper steps. These Testcases are reviewed by the Business Analyst(BA).

Test Data Creation:

During this phase, test data is made or extracted from the previous environment against business requirements. Test data are often created manually or using automation tools.

Environment Setup:

During this step, the testing environment is configured because the need for Business or application

Performance Metrics:

Performance Metrics represent the knowledge in terms of performance of the application, System or the components

Testing Phase:
API Testing:

In API testing, we make sure that the interaction between applications within the blockchain ecosystem is needless to say

Block Testing:

All the blocks on the Network should be tested individually to make sure proper cooperation.

Functional Testing:

In Functional Testing, we evaluate the work of varied functional parts of the Blockchain (e.g., smart contracts).

Performance Testing:

Details like network latency supported block size, network size, expected transaction size, and the way long a question takes to return the output with the specialized authentication protocol

Security Testing:

During this, we make sure that the appliance is susceptible to attacks and Systems can protect the info and is capable of handling malicious attacks, etc.

Integration Testing:

In Integration testing, we make sure that all the components of the appliance are integrated properly and performing the actions appropriately

Smart Contract Testing:

Smart Contract testing is about performing detailed functional testing of business logic and process.

Report Phase:
Project Summary Report:

Describe the general overview of project details, project dates, cost, and Task Details

Smart Contract Testing Report:

This report describes the small print of Smart contract, data, and rules processing

Security Testing Report:

Shows Vulnerable information during a formal document for the client and better management. The report contains the date of testing, test data, and Summary of the vulnerabilities found

Performance testing Report:

This report shows the small print regarding the performance of applications like speed, scalability, reliability, etc.

Key Testing Types on Blockchain Application

Functional Testing

Functional Testing plays a crucial role in Blockchain Testing because it helps in evaluating business requirements, processes, and effectiveness of use cases. Below are the components which will be tested as a part of Functional Testing: 1) Block Size and Chain Size 2) Adding a Block 3) Data Transmission

Integration Testing

Blockchain application adds multiple environments. So, it’s important to check inter-system connections

Performance Testing:

It helps in identifying hardware and software bottlenecks beforehand. this will also assist you to find out the potential costs of running the appliance within the cloud or other environments.

Node Testing

All diverse nodes on the Network must be tested independently to make sure smooth cooperation.

API testing:

Application Programming Interface tests the interaction between applications within the blockchain ecosystem. API Testing ensures that requests and responses are formatted and operated properly.

Blockchain Testing Tools

Here, are some import Blockchain Testing tools:

1)Ethereum Tester:

It is an open-source testing library present on GitHub repo. it’s easy to line up with manageable API support for various Testing requirements.

2) Ganache:

It is primarily known as Testrpc, is the widely used library for testing Ethereum contracts locally. It works by spinning up a type of mock Blockchain that gives you access to accounts you can use for Testing.

3) Hyperledger Composer:

Hyperledger Composer is an open-source tool that assists developers to build blockchain applications. Using this tool, we can perform mainly three types of testing: interactive Testing, automated unit, and System testing.