A Testers Role On Agile Projects - Janet Gregory

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c u -tr a c k c u -tr a c k

A Tester’s Role
on an
Agile Project

Agile Tester Days
Belgium
September, 2009
Janet Gregory, DragonFire Inc.
With material from Lisa Crispin
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Introduction - Me

First agile team – 2000
Currently – coaching, testing
Agile Testing: A Practical Guide for Testers
and Agile Teams; Addison Wesley 2009

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Copyright 2009: Janet Gregory, DragonFire

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Topics

What about you !!!!
A very little bit about agile
Challenges
What is agile testing
Life of a tester during an iteration
Why and how testing must “keep up”
Continual improvement

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Agile is a term to describe methodologies that:

have short iterations
encourage active customer participation
demand whole team collaboration
test features as they are coded
deliver business value at regular intervals
adapt their processes based on feedback

…and so on………….

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Blurred Lines Between Roles
Agile developers are “test infected”
Agile testers and programmers collaborate
Agile testers and customers collaborate
“Whole Team” responsibility for testing
Everyone understands the business

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What challenges do you see for
agile testers?

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Exercise
Break into groups

Discuss your current project or previous
projects
What type of problems is your team
experiencing?
Choose the top 3 problems you would like
to solve
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Copyright 2009 Lisa Crispin and Janet Gregory

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Some Common Challenges

Separate test team
No common language
Fear – loss of identity
Testing always at the end
Organizational culture
Don’t know enough about agile concepts
Lack technical and tool skills
Physical limitations – work space
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What is Agile Testing?
Testers are part of the team
Drives development with tests
Work with customers to define acceptance
tests for each story / feature
Provides continuous feedback to the team
Provides constructive skepticism
Tests each story as it is complete

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Management Expectations
Phased approach… 90% done… until it’s too late
Agile – new expectations
Make quality the priority (not speed!)
Let the team solve problems
Give team time to learn / slack time
Tips / Techniques
Provide visibility – raise risks early
Stress adaptive rather than predictive
Stress ‘getting business value’ regularly
Build credibility / trust by proving it works

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Copyright 2007: Lisa Crispin and Janet Gregory

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The agile tester’s mindset .....

Instead of
– We’re here to break the software!

Think
– What can we do to help deliver
the software successfully?

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Be involved, question, be proactive

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Whole Team Approach

Anyone can pick up a testing task
Run automated regression tests
regularly
Continuous build
Minimally – daily!

Otherwise ……….

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Discuss ....

Instead of saying NO,
or being the gatekeeper

Be the information provider so
business can make the decisions
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Change how we think about testing …

Focus on the 'why' we test

Change the way we think
not about the when
not about the how
white box, black box

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Copyright 2009 Janet Gregory, DragonFire

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The Agile Testing Quadrants
Brian Marick introduced the concept
Can be used to ensure we accomplish all goals
Q1 - Technology-facing tests that support the team
Q2 - Business-facing tests that support the team
Q3 - Business-facing tests that critique the product
Q4 - Technology-facing tests that critique the product

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Test Approach - The Agile Way
Project Initiation Get an understanding of the project

Release Planning Participate in estimating stories Create Test Plan

Each Iteration Write and execute story tests
1 Write and execute new functional test cases
…. Pair test with other testers, developers
X Automate new functional test cases
Run automated regression test cases

Perform Load Test
System Test / Complete Regression Test
End Game Perform UAT
Perform Mock Deploy
Participate in Release Readiness

Release to Prod/
Support Participate in Release to Prod
Participate in Retrospectives 17


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Project Initiation
Purpose – high level understanding of project
Questions to ask:
Are other teams involved?
Will we need special resources?
Test environments, tools, people
What other risks are there?
May be asked for 10,000 ft estimates
Required to determine cost/benefit

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Release Planning – The Purpose

Understand the “Conditions of Satisfaction”
Criteria to gauge success of the project
Functionality, quality, time???
Want to get a good idea of relative ‘size’
Plan what might be possible

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What do you think a tester’s role is
during release planning ....

If anything?

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Release Planning – Tester’s Role

Sizing of stories
think about impacts to system
Ask questions
that may impact the ‘bigness’ of the story
to uncover hidden assumptions
such as ‘what if?’, or “what happens if?”
Not the time for details
Create a project “test plan”
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Preparing for Iteration - Stories

Be proactive - preplanning
Specifications workshops – Gojko Adzic
Help customer achieve ‘advance clarity’
on stories
Customers speak with “one voice”
Testable stories
Steel threads

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Use Pictures to Clarify

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Learning to Collaborate
Groups again....

Step 1 – Draw your vision of the perfect ....

Step 2 – Collaborate to create one common
vision that each of you can live with.

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Copyright 2009 Lisa Crispin and Janet Gregory

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During Iteration Planning
• Find hidden assumptions – question assumptions
• Ask “why?” Ask “what if?”
• Define and estimate testing tasks
• Ask what other tasks are required
• Define high level story tests or examples

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Testable Stories
Goal – steel thread, thin slice, critical path
Work towards an end-to-end first cut
What is absolutely required
Keep it simple
Allows whole team to work together
Gives good basis for testing
Later – add complexity / extras

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Drive Development - ATDD

ATDD (Acceptance Test Driven Development)
Express the intent of the story
Use examples
Defines behaviours
Maybe misbehaviours
Help the developers to understand what is
expected

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Acceptance Test Exercise
The story…..
As an on-line shopper, I want to provide my
shipping address when I check out so that my
order goes to the right location.

Consider
Locations – countries?
Misbehaviours?
What is the simplest thing we could do?
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When Coding Starts
Write detailed test cases from examples
Make them executable if possible
Write simple, happy path tests to automate
Share them with the programmers
Once simple tests pass, write more test cases
Start with happy path
Then move towards edge cases
Identify possible exploratory scenarios

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Testing/Coding: Don’t sit and wait!
Is any testable part of a story ready?
Test with behind-the-GUI tool such as FIT?
Or other harness to bypass GUI

Pair with programmers
Test together before check-in
Show them issues
Ask questions
Bugs found here are cheap and easy to fix
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Testing/Coding: Collaboration
Pair with customers
Show customer early
Does delivered feature meet expectation?

Other team members, e.g.
Work with DBA to understand database
Work with sys admin to get better messaging
from continual build

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A Testers Role On Agile Projects - Janet Gregory

A Testers Role On Agile Projects - Janet Gregory

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