Gartner Research

How to Test Services in an Agile Application Architecture

Published: 30 July 2019

ID: G00365721

Analyst(s): Kevin Matheny , Sean Kenefick


The move toward applications using service-based architectures has directly influenced test tooling and processes. Application technical professionals responsible for developing and delivering software — including architects, developers and testers — must adapt to a new testing paradigm.

Table Of Contents

Problem Statement

The Gartner Approach

The Guidance Framework

  • Prework
    • An Introduction to Modern Application Architecture
  • A Guidance Framework for Ensuring the Quality of Service Applications
  • Step 1. Test Your Service’s Functionality
    • Test Using Isolation-Integration Patterns
    • Test the Domain Resources and Enforce Interface Contracts
    • Test the Service Persistence Layer
    • Automate Everything, but Continue to Explore
  • Step 2. Test Your Service Levels
    • A Lack of Parity
    • Estimating Performance Changes Through Correlation
    • Test for Availability
    • Enforce Authentication
    • Ensure Entitlements
  • Step 3. Test Your Deployment Mechanisms and Processes
    • Release Processes
    • Service Packaging With Containers
  • Step 4. Test Your Platform
  • Step 5. Test Your Business Processes
    • Verify Expected User Workflows
    • Use Shadow Testing Practices

Risks and Pitfalls

  • Your Development Teams Are Forced to Use Waterfall Processes and Monolithic Services
  • Production Systems May Expose Issues That Weren’t Possible to Find in Earlier Environments
  • Production Data and Traffic Patterns Are Necessary to Adequately Test Your Application
  • Teams That You Have Never Met Will Use Your Service in Ways That You Didn’t Expect

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