Automation Culture: Essential to Agile Success Agile Austin Geoff Meyer, [email protected] October 2013 Last updated: September 29, 2013.

Automation Culture:Essential to Agile SuccessAgile Austin

Geoff Meyer, [email protected]

October 2013Last updated: September 29, 2013

Session Objectives• Challenges to expect when adopting test

automation during your Agile transition

• Practical solutions to what & when to automate

• Real-world examples − from a large organization perspective

• Challenges automating in a HW-dependent environment

• For organizational leaders driving test strategy

• A Tools Discussion

• Focused on how to develop Test Automation

IS

IS

NOT

Introductions

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Geoff Meyer• Dell Inc, 1998 – present

– Test Architect

› Agile Test & Automation Strategy

– Agile Steering Committee Co-Chair

– Global Projects

› 15 Scrum teams (2 regions)

› 11 Scrum teams (4 regions)

› 9 scrum teams (2 regions)

› 7 Scrum teams (4 regions)

• NCR Corp. 1984 – 1998

– SW developer, Project Lead, SW Manager

• B.S. Computer Science, San Diego State University

• Masters Engineering Management - NTU

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Agenda

• Why Automation is essential to Agile

• The Dell Context and Agile @ Dell

• Challenges and Common Pitfalls

• The Automation Landscape

• Foundations of an Automation Culture

• Care and Feeding of the Automation Culture

The Need,

The Challenge,

The Pitfalls

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Ø

Why is Automation So Important in Agile?

• Near-term

– Ensures that you don’t break what you just built

– Provides safety net for developers & rapid feedback to new changes

– Continuous Integration and use of Build Verification Test (BVT)• Long-term

– Maximizes velocity of Scrum team (increased value creation)

– Creates capacity for Exploratory and ad-hoc Testing

– Enables activities that can’t be done cost-effectively by humans

And if you don’t…Quality is at risk from an unmanageable regression suite

Differences with Automation in Waterfall?

In Waterfall…

• Automated tests are derived from the backlog of completed features– In Agile, Automation can be incorporated in the

requirement

• Testing and automation is performed after Development is “complete”

• Focus is on first-time discovery of defects and optimizing your test coverage

vs. Agile… where automation development is ongoing and provides immediate feedback throughout development

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The Context @ Dell

http://amazngwallpapers.blogspot.com

“Apply Test Automation in the context of your organizational automation needs”

--- Bob Galen, Agile Coach

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Dell Enterprise Solutions GroupGlobal Design and Development using Agile Scrum

Noida Design Center

Bangalore Design Center

Austin Design Center

Silicon Valley Design Center

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Dell Enterprise SolutionsSoftware Products

• Server Systems Management

• Converged Infrastructure Systems Management

• Private Cloud Systems Management

• Console Plug-ins (i.e. for SCCM, vCenter…)

Common Product Characteristics:

• Large hardware support test matrix

• Software is installed in the Data Center

• Enterprise update cycles ~6 months

• Products must function even as underlying HW, FW, BIOS, and Drivers are upgraded - SUSTAINING

Agile @ Dell Roles/Responsibilities

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Product Owner

Product Owner Proxy~1 per Scrum

Scrum Master1 per Scrum

Development4-5 per Scrum

Test3:1

Tech Pubs1 per 3 scrum teams

UI1 per Scrum

Scrum teams

• Small teams

• Co-located

• Distributed Projects

• Teams formed from functional silos

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Agile @ Dell with Adaptations

Hardening

1 2 3 N-1 N

1 2 3 N-1 N1 2 3 N-1 N

…

Release

Exit

FeatureComplet

e

Code Freeze

Sprints

Release Plan

Define Plan Develop LaunchOLP

…

Software System Test

Extended Sprint Test

Stability

Pitfalls encountered at

• Development didn’t historically automate unit tests

• Build teams were staffed with non-Build practitioners

• Minimal guidance to Test beyond “Go forth and automate”

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• Black Box Test Mentality

• Architecture(s) not optimized for Automatability

• Automation was interpreted by many as “Automate the UI”

• Insufficient SW engineering background across Test teams

Which Resulted In…

• Over-emphasis on UI automation

• Test Automation not keeping up within the sprint

• Feature Devotion1

• Multiple automation tools & licenses

• Test scripts not designed for re-use

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1 – “A nasty condition where people start valuing ticking off features more than tracking the real outcome of the project.”--- Martin Fowler

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The Automation Landscape

http://amazngwallpapers.blogspot.com

Opportunities for Automation

• It’s not just about automating test cases

• Can also provide efficiencies to:

– Test Preparation, Setup and Configuration

– Non-Functional Testing (“ility”)

› Longevity, Scale and Performance Characterization

– Compatibility Testing (Solution and Device)

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Test Preparation

• Bare-metal Deployment

• Setup & Configuration– OS Provisioning and

Configuration

• Test case staging

• Environment Cleanup/Baseline

• Virtualization-based test environments

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Test Content DevelopmentWhole team ownership of QA & Automation

• UI automation on Customer Usage workflows

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CAUTION: Application Architecture can be an enabler or inhibitor

• Unit Test Automation

• In-Sprint, Automated Acceptance Tests

• Web-services (or CLI) Test Automation for Functional Testing

• Automated CI (UT, Build, BVT)

2 - Agile Testing: A Practical Guide for Testers and Agile teams

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Application Architecture Matters

• Does it facilitate testing at the API/Services level?

• Does the Business/Error Logic reside below the services level?

• Does the UI architecture support test automation other than record-playback?

For Large organizations:– Standardize UI architectures across the product portfolio

› HTML5, Flex, Silverlight…

– Standardize Service architectures across the product portfolio› SOAP, REST, CLI, API

Prioritize and Identify what NOT to Automate

What NOT to Automate

• Everything

• GUI – Except for High-value customer usage flows after the UI is stable

• Tests that would only find low severity bugs

– Where the product is unchanging21

Prioritize High ROI

1. BVT Candidate Acceptance Test

– Test of core functionality that executes in a short duration

2. Core Functionality to be run in Nightly Regression

3. Sustaining Test Candidate Test

– Functional test that verifies the application can withstand subsystem changes

Non-Functional Testing

• Performance Characterization

• Longevity

• Stress

• Scale

• Concurrency

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Often times analysis of these areas are simply too cost-prohibitive to be done manually3- http://lisacrispin.com/wordpress/2011/11/08/using-the-agile-testing-quadrants/

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Foundations of an Automation Culture

Images.yahoo.com

Keys To A Culture Transition

• Development vs. Test

• A different “School” of Test4

• Evolve from Functional Responsibility

…to Whole Product Ownership

244 – Scott Barber “Approaches to Software Testing: An Introduction “

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Establishing an Automation Culture

• Identify• Near and long-term automation focus areas• Inventory the culture and skillset of organization

• Establish– Tooling and Infrastructure Standardization– Your ‘community’

• Develop– Workforce transition plan

• Organize– Embedded vs. Specialized Automation team– Re-align project staffing

• Operationalize

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IdentifyFocus Areas for Automation

4 - http://lisacrispin.com/wordpress/2011/11/08/using-the-agile-testing-quadrants/

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Establish

• Tooling and Infrastructure– Tooling Standards and Frameworks– Team to develop/manage home-grown tools– Lead tool evaluations to meet new architectures

& technologies

• Community: Internal and External

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Multiple automation Tools/FW’s may be needed to automate at layers of testing:

• Unit level• Middle tier• UI-driven

Confidential28

Develop & Organize

• Adjust Hiring Practices

• Re-align Project staffing

• Embedded Automation vs. Specialized Team

• Training– New-hire

– Ongoing

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Operationalize

• Whole team commitment in words and actions

• Include Test Automation in Acceptance Criteria

– Unit

– Acceptance

• Continuous Integration and BVT

• Establish Metrics, Governance & Rewards

Automation @ PG Enterprise Solutions Group How did we go about it?

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Process/Project

Culture/Organization

In-Sprint Automatio

n

Established ALT

2011 2014

UI Automation

“Automate-First”

Service-level automation(CLI & Web-

services)

IVT Networking & Servers

Automated BVT

IVT Device

Accelerate Automation

Skillset

Maximize Utilization

Automation Architects

Setup & Config

Internal Training

Programs

2012

TDD & Automate

d UT

Non-FunctionalScale,

Longevity

2010

Automation Day

2013

Automation Content Libraries

Care and Feeding of the Automation Culture

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Maintaining the Automation Culture

• Operationalize Automation– Include Test Automation in the Acceptance Criteria

• Encourage Community Practice and Participation– External - Industry User Groups & Conferences– Internal - Brown-bag sessions, Showcases, Mini-conference

• For Large organizations:– Overcome skillset deficiencies by adjusting staffing

strategy– Automation Leadership Team, Automation Architect(s)– Continually monitor the alignment of Architecture, Dev and

Test– Develop reward systems

Recognizing a Successful Automation Culture

• Automation is a shared responsibility

• Automatability is a key architectural consideration

• Continuous Integration & BVT

• Teams are staffed to include an automation skillset

• Automation is operationalized

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Resources• Agile Manifesto - http://agilemanifesto.org/

• Articles/Blogs:– http://support.smartbear.com/articles/testcomplete/automated-testing-agile-environ

ment/ - SmartBear

– http://lisacrispin.com/wordpress/2011/11/08/using-the-agile-testing-quadrants/ - Lisa Crispin

– http://www.stickyminds.com/sitewide.asp?Function=edetail&ObjectType=COL&ObjectId=17793&tth=DYN&tt=siteemail&iDyn=2 – Rajini Padmanaban

– Beyond Agile Testing: http://www.utest.com/int-v1/a/beyond-agile-testing - uTest

– Testing and Checking Refined: http://www.satisfice.com/blog/archives/856 - James Bach and Michael Bolton

• Books:– Scaling Software Agility: Best Practices for Large Enterprises – Dean Leffingwell

– How Google Tests Software – James Whittaker, Jason Arbon, Jeff Carollo

– Agile Testing: A Practical Guide for Testers and Agile teams – Lisa Crispin, Janet Gregory

– http://www.dorothygraham.co.uk/automationExperiences/index.html - Dorothy Graham

• Presentations:– Approaches to Software Testing: An Introduction – Scott Barber

– Agile Testing: Challenges Beyond the Easy Contexts – Bob Galen

Questions?

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