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Acceptance Test Driven Development
Naresh Jain naresh@agilefaqs.com

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Saturday, November 29, 2008 1

Tutorial Schedule
Brainstorming Overview about Acceptance Criteria and Tests Demo Some Exercises Overview of Tools Details look at Fit, FitNesse and FitLibrary Hands on Session Patterns and Anti Patterns Questions welcomed all the timeLicensed Under Creative Commons by Naresh Jain
Saturday, November 29, 2008 2

Welcome

Continuum Hopes and Concerns

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Saturday, November 29, 2008 3

Warmup Scenarios
Pick one scenario and in relation to your scenario, what are the specific observable results that will tell you that the activity has been successfully completed?
Going out for Movie(THX sound and Digital projection) Going out for meal (one veg.) Going shopping ($50)
[10 Minutes]

Present back to the group your findings. [3 minutes per group]
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Saturday, November 29, 2008 4

Acceptance Criteria and Tests: Definition
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Saturday, November 29, 2008 5

Acceptance Criteria &Tests: Definition

Acceptance Criteria
Is a set of conditions that the Story must meet for it to be accepted as complete Is typically provided by the customer or product owner.

Is not a replacement for conversation. Is one of the results of the conversation Acceptance Criteria are NOT tests
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Saturday, November 29, 2008 6

Writing acceptancecriteria
Acceptance Criteria should contain:
ACTOR VERB – DESCRIBING A BEHAVIOR OBSERVABLE RESULT To accommodate pre-conditions Acceptance Criteria can be expressed as

Given [Precondition] When [Actor + Action] Then [Observable Result]
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Saturday, November 29, 2008 7

Acceptance Criteria & Tests: Definition

Acceptance Tests

Acceptance Criteria+ Examples (data + scenarios) Acceptance Tests
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Saturday, November 29, 2008 8

Demo
Roman Numerals to Decimal Conversion Example

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Thinking in Tables

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Saturday, November 29, 2008 10

Thinking in Tables

OnlyTables Execute
Ignored

Executed

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Foundational Table Structure
Name of Fixture Interaction with Application

Thinking in Tables

Table structure depends on type of Fixture

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Thinking in Tables

3 Foundation FixturesColumn Fixture Row Fixture Action Fixture

copyright (c) 2007 by Micah Martin & Naresh Jain. All rights reserved.
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Thinking in Tables

Column Fixture

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Thinking in Tables

Row Fixture
Analogous to comparing against rows in adatabase table

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Saturday, November 29, 2008 15

Thinking in Tables

Action Fixture
Think GUI window
public class CountFixture extends Fixture { private int counter = 0; public void count() { counter++; } public int counter() { return counter; } }

Counter Window
Counter: Counter: 6 Count

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FitLibrary

Extension to FIT Written by Rick Mugridge Adds some handy Fixtures

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Saturday, November 29, 2008 17

FitLibrary Fixtures
ArrayFixture for ordered lists SetFixture for unordered lists SetUpFixture Supports Graphics Tree structures Nested Tables

FitLibrary

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