Rutvikkumar Mrug who is a Associate Director at Cognizant Technology Solutions took a Session on "Blockchain and Continuous Testing" at Global Testing Retreat #ATAGTR2019 Please refer our following post for session details: https://atablogs.agiletestingalliance.org/2019/12/04/global-testing-retreat-atagtr2019-welcomes-rutvikkumar-mrug-as-our-esteemed-speaker/

1. #ATAGTR2019
Blockchain and Continuous Testing
Rutvikkumar Mrug, Cognizant Technology Solutions
14th-15th Dec 2019

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50 of the Largest Public
Co.'s are exploring
Blockchain technology
Key leaders adopting Blockchain
Blockchain is becoming mainstream…
Blockchain is neither a new interest nor lost opportunity,
realistic solutions are implemented gradually and hence can not be ignored

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…but there are hesitations too
• Trust is key
• Pilot worked, but
will implementation work?
• Network behavior
still to be proven
• Shift towards
distributed transactions
• Legacy Integration - a
challenge
• New concepts like
Smart Contract
Quality Assurance
can reduce
these hesitations

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UI Component
(JAVA,.NET, etc.)
Middleware / connector
(ESB, RPC, etc.)
Processing Engine
UI Component
(JAVA,.NET, etc.)
Middleware / connector
(Blockchain API, RPC, etc.)
Web Service / JAVA function
DB
Processing Engine
Key
Differences 
• Network based transaction processing
• Data security & immutability
• Smart contract driven processing
Traditional Application Blockchain Application
Vs
QA strategy differs across Traditional & Blockchain Apps

5. #ATAGTR2019
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Blockchain needs comprehensive QA across layers
Blockchain layer
Middleware layer
UI layer
• Network synchronization
• Resilience Testing
• Smart contract component / Unit testing
• Vulnerability at node level
• Network set-up / configuration
• Smart Contract
• Integration with interfacing App
• Integration with UI
• Functional / orchestration Testing
• Data driven Testing
• Performance Testing
• Security Testing
• User Interactive (Web / Mobile)
• E2/E Business Assurance
• Role based authorization
Dev task QA task

6. #ATAGTR2019
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Parallel development across layers
Overlapping with traditional application architecture
Shift left / Individual layer testing in silo
Due to limited delta,
potential to reuse automation solution
Smart contract is data driven
High volume of data driven testing,
potential for automation
Huge QA scope with Agile delivery Automated + Orchestrated QA
With the need for early, frequent, automated QA;
we are moving towards Continuous Testing
Key Opportunities for QA
Blockchain facilitates Opportunities for QA

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Tool Orchestration
ContinuousTestingfocuseson
Automation
Continuous feedback
Continuous Testing – What it means?
Test Everywhere
3GuidingPrinciples
Testing Early
Testing Often

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Code review
Review code early in lifecycle
Shift left testing
Unit testing / Early testing
automation (using SV / API
automation)
Environment Mgmt.
Automated Environment
creation
System Test
Automated testing of
components (mostly API)
Test Coverage
Validate test coverage
System Integration
Testing
E2E test automation (mostly UI)
Orchestration
Automated integration of
tests + Build
Feedback
Capturing feedback and
improve
NFT
Automated performance tests
Continuous Testing – Major building blocks
Test Everywhere
3GuidingPrinciples
Testing Early
Testing Often

9. #ATAGTR2019
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Change
Continuous Testing for Blockchain
Test Everywhere
3GuidingPrinciples
Testing Early
Testing Often
Code review
Support for Solidity language
Shift left testing
Test smart contract /
Blockchain layer early
Environment Mgmt.
Automated Blockchain n/w
management
System Test
Network assurance + Data driven
Smart contract functional testing
Test Coverage
Validate test coverage for API /
UI tests
System Integration
Testing
E2E test automation (mostly UI)
Orchestration
Automated integration of tests
with help of Jenkins
Feedback
Reporting and traceability
NFT
Automated performance tests
(API)
1 2
3 4

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Code review
Shift left testing
Automated Environment
creation + Maintenance
System TestEnvironment Mgmt.
Automated smart contract
component testing
Sonar Solidity for code review
Network assurance automation
package
Solution for the missing block
1 2
3 4
Smartcontract
Key to Success – Democratize automation through self service, script less and process
automation

11. #ATAGTR2019
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On demand blockchain network management
Smart contract
Checkin
Code Review
Smart contract
Component Testing
Smart contract
Installation
N/W Assurance
On demand environment / Virtualization
Interface development
Check-in
Code Review Deploy
Unit Test
automation
Functional +
regression
Smart contract
Functional testing
Performance
Testing
Early Security Testing
Security Testing
Blockchain CT pipeline
UI+API CT pipeline
Test Result
Dashboard
Requirement
management
Orchestrator tool Versioning tool API automation tool
Driven by common toolset…..
Continuous testing pipeline – Quick snapshot

12. #ATAGTR2019
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Conclusion
 Blockchain is still at early stage
 Onus on QA to increase trust on
Blockchain
 With increased DevOps
adoption, Continuous Testing
will be a focus area
But a lot can
change as…
 Lack of matured testing tools can impact
Test approach
 Increased focus on security, scalability etc.
 Large scale QA application depends on use
case applicability

13. Thank you