Acceptance Test Driven Development

Acceptance TestDriven Development Naresh Jain naresh@agilefaqs.com http://blogs.agilefaqs.com Licensed Under Creative Commons by Naresh Jain 1

Warmup Scenarios Licensed Under Creative Commons by Naresh Jain 2

Warmup ScenariosPick one scenario and in relation to your scenario,what are the speciﬁc observable results that willtell you that the activity has been successfullycompleted? Licensed Under Creative Commons by Naresh Jain 2

Warmup ScenariosPick one scenario and in relation to your scenario,what are the speciﬁc observable results that willtell you that the activity has been successfullycompleted?Going out for Movie (THX sound and Digital projection) Licensed Under Creative Commons by Naresh Jain 2

Warmup ScenariosPick one scenario and in relation to your scenario,what are the speciﬁc observable results that willtell you that the activity has been successfullycompleted?Going out for Movie (THX sound and Digital projection)Going out for meal (one veg.) Licensed Under Creative Commons by Naresh Jain 2

Warmup ScenariosPick one scenario and in relation to your scenario,what are the speciﬁc observable results that willtell you that the activity has been successfullycompleted?Going out for Movie (THX sound and Digital projection)Going out for meal (one veg.)Going shopping ($50) Licensed Under Creative Commons by Naresh Jain 2

Warmup ScenariosPick one scenario and in relation to your scenario,what are the speciﬁc observable results that willtell you that the activity has been successfullycompleted?Going out for Movie (THX sound and Digital projection)Going out for meal (one veg.)Going shopping ($50) [10 Minutes] Licensed Under Creative Commons by Naresh Jain 2

Warmup ScenariosPick one scenario and in relation to your scenario,what are the speciﬁc observable results that willtell you that the activity has been successfullycompleted?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] Licensed Under Creative Commons by Naresh Jain 2

What is a Story?Story is a smallest piece of functionality that add business value Story Title - Actor Action Context As a .. <user who requires this feature> I want .. <do something> So that... <user goal/business justiﬁcation> Ron Jeffries’ 3 Cs - Card, Conversation and Conﬁrmation 3

Story ExampleTitle: Keen Reader subscribes to a blogAs a keen reader of your blogI want to subscribe to your blogSo that I can stay up-to-date with the new posts 4

Another Story ExampleTitle: Social Networking Enthusiast uploads proﬁle pictureAs a Social Networking EnthusiastI want to upload my proﬁle pictureSo my friends can see how I look and recognize me 5

What makes a good Story? 6

What makes a good Story?Stories should follow the INVEST principle: 6

What makes a good Story?Stories should follow the INVEST principle:Independent 6

What makes a good Story?Stories should follow the INVEST principle:IndependentNegotiable 6

What makes a good Story?Stories should follow the INVEST principle:IndependentNegotiableValuable 6

What makes a good Story?Stories should follow the INVEST principle:IndependentNegotiableValuableEstimate-able 6

What makes a good Story?Stories should follow the INVEST principle:IndependentNegotiableValuableEstimate-ableSmall 6

What makes a good Story?Stories should follow the INVEST principle:IndependentNegotiableValuableEstimate-ableSmallTestable 6

Stories are fundamental unit of activity 7

Stories are fundamental unit of activityBusiness Goals 7

Stories are fundamental unit of activityBusiness Goals Inception 7

Stories are fundamental unit of activityBusiness Goals Product Backlog Inception As a ____, I want to be able to ____ so that ____ Might have an initial estimate (perhaps for both analysis and development), and an expression of technical and business confidence that this is real and achievable 7

Stories are fundamental unit of activityBusiness Goals Product Backlog Inception Release planning As a ____, I want to be able to ____ so that ____ Might have an initial estimate (perhaps for both analysis and development), and an expression of technical and business confidence that this is real and achievable 7

Stories are fundamental unit of activityBusiness Goals Product Backlog Release Backlog Inception Release planning As a ____, I want to As a ____, I want to be able to ____ so be able to ____ so that ____ that ____ I will know this is done when _______ Might have an initial estimate (perhaps for both analysis and development), and an expression of technical and business confidence that this is real and achievable More detailed estimate, and a specific acceptance test – low confidence stories might be “spiked” or prototyped 7

Stories are fundamental unit of activityBusiness Goals Product Backlog Release Backlog Inception Release planning Sprint planning As a ____, I want to As a ____, I want to be able to ____ so be able to ____ so that ____ that ____ I will know this is done when _______ Might have an initial estimate (perhaps for both analysis and development), and an expression of technical and business confidence that this is real and achievable More detailed estimate, and a specific acceptance test – low confidence stories might be “spiked” or prototyped 7

Stories are fundamental unit of activityBusiness Goals Product Backlog Release Backlog Sprint Backlog Inception Release planning Sprint planning As a ____, I want to As a ____, I want to As a ____, I want to be able to ____ so be able to ____ so be able to ____ so that ____ that ____ that ____ Possible automation of the acceptance test I will know this is done I will know this is done when _______ when _______ Might have an initial estimate (perhaps for both analysis and development), and an Development team expression of technical and breaks out the detail To do this I must: business confidence that this of work needed to 1) _____ is real and achievable More detailed estimate, and a pass test 2) _____ specific acceptance test – low confidence stories might be “spiked” or prototyped 7

Acceptance CriteriaIs a set of conditions that the Story must meet for it to beaccepted as completeIs typically provided by the customer or product owner. Is not a replacement for conversation. Is the results of the conversation Acceptance Criteria are NOT tests 8

Writing Acceptance CriteriaAcceptance Criteria should contain: ACTOR VERB – DESCRIBING A BEHAVIOR OBSERVABLE RESULTTo accommodate pre-conditions Acceptance Criteria can be expressed as Given [Precondition] When [Actor + Action] Then [Observable Result] 9

ExampleSocial Networking Enthusiast uploads proﬁle picture 10

Example Social Networking Enthusiast uploads proﬁle pictureGiven the user has a valid facebook account and a digital picture on her computer,When she uploads a picture in facebook,Then her the picture should be visible to all her friends in her network. 10

Example Social Networking Enthusiast uploads profile pictureGiven the user has a valid facebook account and a digital picture on her computer,When she uploads a picture in facebook,Then her the picture should be visible to all her friends in her network.Given an user is trying to find a friend on facebook,When the user searches for a person using their name,Then their profile picture should be displayed along with other details. 10

Example Social Networking Enthusiast uploads profile pictureGiven the user has a valid facebook account and a digital picture on her computer,When she uploads a picture in facebook,Then her the picture should be visible to all her friends in her network.Given an user is trying to find a friend on facebook,When the user searches for a person using their name,Then their profile picture should be displayed along with other details.As owner of facebook,I want users to upload authentic, personal profile picture,So facebooks reputation remains intact and facebook stays out of legal hassles. 10

Acceptance Criteria & Tests: Deﬁnition Acceptance Tests Licensed Under Creative Commons by Naresh Jain 11

Acceptance Criteria & Tests: Deﬁnition Acceptance TestsAcceptance Criteria Licensed Under Creative Commons by Naresh Jain 11

Acceptance Criteria & Tests: Deﬁnition Acceptance Tests Acceptance Criteria+ Licensed Under Creative Commons by Naresh Jain 11

Acceptance Criteria & Tests: Deﬁnition Acceptance Tests Acceptance Criteria+ Examples (data + scenarios) Licensed Under Creative Commons by Naresh Jain 11

Acceptance Criteria & Tests: Deﬁnition Acceptance Tests Acceptance Criteria+ Examples (data + scenarios) Acceptance Tests Licensed Under Creative Commons by Naresh Jain 11

TasksTeam members further break down each story into tasks that need to be completed to meet the acceptance criteria for the story. 12

Tasks Team members further break down each story into tasks that need to be completed to meet the acceptance criteria for the story.To accomplish this story: we start off with a simple upload and image display 12

Tasks Team members further break down each story into tasks that need to be completed to meet the acceptance criteria for the story.To accomplish this story: we start off with a simple upload and image display restrict user to only upload certain image types (gif, jpg and png) 12

Tasks Team members further break down each story into tasks that need to be completed to meet the acceptance criteria for the story.To accomplish this story: we start off with a simple upload and image display restrict user to only upload certain image types (gif, jpg and png) ﬁgure out where to store the image. (performant and fault-tolarent) 12

Tasks Team members further break down each story into tasks that need to be completed to meet the acceptance criteria for the story.To accomplish this story: we start off with a simple upload and image display restrict user to only upload certain image types (gif, jpg and png) ﬁgure out where to store the image. (performant and fault-tolarent) scale down (size, resolution, etc.) of the image 12

Tasks Team members further break down each story into tasks that need to be completed to meet the acceptance criteria for the story.To accomplish this story: we start off with a simple upload and image display restrict user to only upload certain image types (gif, jpg and png) ﬁgure out where to store the image. (performant and fault-tolarent) scale down (size, resolution, etc.) of the image and so on... 12

DemoRoman Numerals to Decimal Conversion Example Licensed Under Creative Commons by Naresh Jain 13

DemoReal World Domain Forwarding Server Licensed Under Creative Commons by Naresh Jain 14

Thinking in Tables Licensed Under Creative Commons by Naresh Jain 15

Thinking in TablesOnly Tables Execute Ignored Executed Licensed Under Creative Commons by Naresh Jain 16

Thinking in Tables Foundational Table Structure Name of FixtureInteraction with Application Table structure depends on type of Fixture Licensed Under Creative Commons by Naresh Jain 17

Thinking in Tables 3 Foundation FixturesColumn FixtureRow FixtureAction Fixture Licensed Under Creative Commons by Naresh Jain 18

Thinking in Tables Column FixtureLicensed Under Creative Commons by Naresh Jain 19

Thinking in Tables Row Fixture Analogous to comparing against rows in a database tableLicensed Under Creative Commons by Naresh Jain 20

Thinking in Tables Action Fixture Think GUI window Counter Window Counter:public class CountFixture extends Fixture { private int counter = 0; Counter: 6 public void count() { Count counter++; } public int counter() { return counter; }} Licensed Under Creative Commons by Naresh Jain 21

FitLibraryExtension to FITWritten by Rick MugridgeAdds some handy Fixtures Licensed Under Creative Commons by Naresh Jain 22

FitLibrary FitLibrary FixturesArrayFixture for ordered listsSetFixture for unordered listsSetUpFixtureSupports Graphics Tree structures Nested Tables Licensed Under Creative Commons by Naresh Jain 23

FitLibraryDoFixture• Broken tables• Highly readable• Flexibility Licensed Under Creative Commons by Naresh Jain 24

Tools FITFramework for Integrated TestsCreated by Ward CunninghamOpen SourceThe most accepted solution for agile acceptance testing Licensed Under Creative Commons by Naresh Jain 25

Tools FitNesseEnvironment build around FITMakes everything easierCreated by Object Mentor, Inc.Open Source Licensed Under Creative Commons by Naresh Jain 26

FIT FitNesse - Stand alone web server - Is a wiki- Tests written in HTML - Tests written in wiki text- Tests are executed on the command line - Tests are executed from within the wiki- Tables are executed - Translates tests into HTML- Non-table markup is ignored - Uses FIT to execute tests- Tables map to Fixtures - Supports test suites- Fixtures are code that is aware of the - Supports variables in testssystem - Supports test refactoring- Supplies foundational Fixtures - Written in Java- Implementations ported to many - Supports FIT implementations in anylanguages language Licensed Under Creative Commons by Naresh Jain 27

Acceptance Criteria and Tests:A Critical Piece of Agile Licensed Under Creative Commons by Naresh Jain 28

Acceptance Criteria & Tests: A Critical Piece of Agile Traditional Approach1 May 1 Jul 1 Sep 1 Nov Analysis Design Implementation ERD DFD DD ST Licensed Under Creative Commons by Naresh Jain 29

Key Questions Business FacingAre we building the right product?Are we building the product right? Technology/Implementation Facing Licensed Under Creative Commons by Naresh Jain 30

Brian Marick’s Test Categorization Business FacingSupports Programming Critique product Technology/Implementation Facing Licensed Under Creative Commons by Naresh Jain 31

It Helps to Think of Tests this way... Business FacingDrives Development Critique product Technology/Implementation Facing Licensed Under Creative Commons by Naresh Jain 32

It Helps to Think of Tests this way... Business FacingDrives Development Critique product Unit Testing Technology/Implementation Facing Licensed Under Creative Commons by Naresh Jain 32

It Helps to Think of Tests this way... Business Facing Acceptance TestingDrives Development Critique product Low-ﬁ prototypes Unit Testing Technology/Implementation Facing Licensed Under Creative Commons by Naresh Jain 32

It Helps to Think of Tests this way... Business Facing Acceptance Testing Exploratory TestingDrives Development Critique product Low-ﬁ prototypes UI and Usability Testing Unit Testing Technology/Implementation Facing Licensed Under Creative Commons by Naresh Jain 32

It Helps to Think of Tests this way... Business Facing Acceptance Testing Exploratory TestingDrives Development Critique product Low-ﬁ prototypes UI and Usability Testing Performance Testing Unit Testing System Tests Technology/Implementation Facing Licensed Under Creative Commons by Naresh Jain 32

Avatars of TDD Business FacingDrives Development Critique product Inside Out Outside In Technology/Implementation Facing Licensed Under Creative Commons by Naresh Jain 33

Test Driven DevelopmentTDD Rhythm - Test, Code, Refactor Licensed Under Creative Commons by Naresh Jain 34

Test Driven Development Add a TestTDD Rhythm - Test, Code, Refactor Licensed Under Creative Commons by Naresh Jain 34

Test Driven Development Add a Test Run the TestTDD Rhythm - Test, Code, Refactor Licensed Under Creative Commons by Naresh Jain 34

Test Driven Development Add a Test Pass Run the TestTDD Rhythm - Test, Code, Refactor Licensed Under Creative Commons by Naresh Jain 34

Test Driven Development Add a Test Pass Run the Test FailTDD Rhythm - Test, Code, Refactor Licensed Under Creative Commons by Naresh Jain 34

Test Driven Development Add a Test Pass Run the Test FailTDD Rhythm - Test, Code, Refactor Make a little change Licensed Under Creative Commons by Naresh Jain 34

Test Driven Development Add a Test Pass Run the Test FailTDD Rhythm - Test, Code, Refactor Make a little change Run the Test Licensed Under Creative Commons by Naresh Jain 34

Test Driven Development Add a Test Pass Run the Test FailTDD Rhythm - Test, Code, Refactor Make a little change Fail Run the Test Licensed Under Creative Commons by Naresh Jain 34

Test Driven Development Add a Test Pass Run the Test FailTDD Rhythm - Test, Code, Refactor Make a little change Fail Run the Test Pass Licensed Under Creative Commons by Naresh Jain 34

Test Driven Development Add a Test Pass Run the Test FailTDD Rhythm - Test, Code, Refactor Make a little change Fail Run the Test Pass Refactor Licensed Under Creative Commons by Naresh Jain 34

Acceptance Test Driven Development Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven DevelopmentStory Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven Development Acceptance CriteriaStory Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven Development Iteration Acceptance CriteriaStory Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven Development Iteration Automated Acceptance Acceptance Criteria TestsStory Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven Development Iteration Automated Acceptance Acceptance Criteria TestsStory Automated Unit Test Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven Development Iteration Automated Acceptance Acceptance Criteria TestsStory Automated Unit Test Automated Acceptance Tests Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven Development Iteration Automated Acceptance Acceptance Criteria TestsStory Automated Unit Test Automated Acceptance Tests Exploratory Testing Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven Development Iteration Automated Acceptance Acceptance Criteria TestsStory Automated Unit Test Automated Acceptance Tests Acceptance Exploratory Criteria Testing Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven Development Iteration Automated Acceptance Acceptance Criteria TestsStory Automated Unit Test Automated UI Tests Automated Acceptance Tests Acceptance Exploratory Criteria Testing Licensed Under Creative Commons by Naresh Jain 35

Acceptance Test Driven Development Iteration Automated P Acceptance E Acceptance R Criteria Tests F O Automated RStory M T Unit Test Automated E E UI Tests N S C T E S Automated Acceptance Tests Acceptance Exploratory Criteria Testing Licensed Under Creative Commons by Naresh Jain 35

Mike Cohn’s Testing Pyramid Licensed Under Creative Commons by Naresh Jain 36

Mike Cohn’s Testing Pyramid GUI Tests Licensed Under Creative Commons by Naresh Jain 36

Mike Cohn’s Testing Pyramid Small in Number GUI Tools: Selenium, Sahi, Watir, Abbot, Frankenstein Tests Licensed Under Creative Commons by Naresh Jain 36

Mike Cohn’s Testing Pyramid Small in Number GUI Tools: Selenium, Sahi, Watir, Abbot, Frankenstein Tests Acceptance Tests Licensed Under Creative Commons by Naresh Jain 36

Mike Cohn’s Testing Pyramid Small in Number GUI Tools: Selenium, Sahi, Watir, Abbot, Frankenstein Tests At least one per story Acceptance Tools: Fit, FitNesse, RSpec, JBehave Tests Licensed Under Creative Commons by Naresh Jain 36

Mike Cohn’s Testing Pyramid Small in Number GUI Tools: Selenium, Sahi, Watir, Abbot, Frankenstein Tests At least one per story Acceptance Tools: Fit, FitNesse, RSpec, JBehave Tests Unit Tests Licensed Under Creative Commons by Naresh Jain 36

Mike Cohn’s Testing Pyramid Small in Number GUI Tools: Selenium, Sahi, Watir, Abbot, Frankenstein Tests At least one per story Acceptance Tools: Fit, FitNesse, RSpec, JBehave Tests At least one per class or module Unit Tests Tools: xUnit, TestNG Licensed Under Creative Commons by Naresh Jain 36

Acceptance Tests: A Critical Piece of Agile Criteria for DONEEvery story must have at least one Acceptance TestA story is not DONE until it passes it’s Acceptance Tests Licensed Under Creative Commons by Naresh Jain 37

Acceptance Tests: A Critical Piece of AgileManual Acceptance Tests Licensed Under Creative Commons by Naresh Jain 38

Acceptance Tests: A Critical Piece of AgileManual Acceptance Tests Manual Acceptance Tests Licensed Under Creative Commons by Naresh Jain 38

Why Acceptance Tests?Criteria for CompletionGreat Collaboration toolSource of FeedbackReal data to measure progress Licensed Under Creative Commons by Naresh Jain 39

Data From Acceptance Tests Total ATs Failing ATs Passing ATs9072543618 0 1 2 3 4 5 6 7 8 9 10 Licensed Under Creative Commons by Naresh Jain 40

Acceptance Tests Are Automated Licensed Under Creative Commons by Naresh Jain 41

Acceptance Tests: A Critical Piece of Agile The ButtonHow often would you pressit?When would you press it?Who would press it? Testers, Developers, Managers, Customers, Spectators, etc. Licensed Under Creative Commons by Naresh Jain 42

Licensed Under Creative Commons by Naresh Jain 43

Criteria for DONELicensed Under Creative Commons by Naresh Jain 43

Criteria for DONE+ Licensed Under Creative Commons by Naresh Jain 43

Criteria for DONE+ Automated Licensed Under Creative Commons by Naresh Jain 43

Criteria for DONE+ AutomatedExecutable Speciﬁcation Licensed Under Creative Commons by Naresh Jain 43

Acceptance Tests: A Critical Piece of Agile Executable SpeciﬁcationA new paradigm for testingPuts quality ﬁrstRemoves ambiguity from requirements Licensed Under Creative Commons by Naresh Jain 44

Who WritesAcceptance Tests? Licensed Under Creative Commons by Naresh Jain 45

Who Writes Acceptance Tests? The CustomerThe Customer Role Stake holder Business Analyst Quality Assurance Product Owner Developer Licensed Under Creative Commons by Naresh Jain 46

Who Writes Acceptance Tests? Tests Get TechnicalThe “Customer” may need technical help to write testsDevelopers and QAs are technicalPair test authoring Licensed Under Creative Commons by Naresh Jain 47

Who Writes Acceptance Tests? Business Rules Get FuzzySometimes developers need help understanding testsCustomers know business rulesPair test implementation Licensed Under Creative Commons by Naresh Jain 48

Exercise #1Licensed Under Creative Commons by Naresh Jain 49

Exercise #1 The Login TestWrite a test plan, in plain text, for the businessrules of logging in.Web applicationUser credentials are stored in relationaldatabaseSuccessful login redirects to “Welcome” page Licensed Under Creative Commons by Naresh Jain 50

Writing GoodAcceptance Tests Licensed Under Creative Commons by Naresh Jain 51

Writing Good Acceptance Tests Login Test Possibilities1. Direct browser to URL for login page Licensed Under Creative Commons by Naresh Jain 52

Writing Good Acceptance Tests Login Test Possibilities1. Direct browser to URL for login page1. Enter the username ‘wallace’ Licensed Under Creative Commons by Naresh Jain 52

Writing Good Acceptance Tests Login Test Possibilities1. Direct browser to URL for login page1. Enter the username ‘wallace’Build a Testable Environment First Licensed Under Creative Commons by Naresh Jain 52

Writing Good Acceptance Tests Login Test Possibilities1. Add some users to the system Licensed Under Creative Commons by Naresh Jain 53

Writing Good Acceptance Tests Login Test Possibilities1. Add some users to the system3. Enter a value into the username ﬁeld Licensed Under Creative Commons by Naresh Jain 53

Writing Good Acceptance Tests Login Test Possibilities1. Add some users to the system3. Enter a value into the username ﬁeld Be Speciﬁc Licensed Under Creative Commons by Naresh Jain 53

Writing Good Acceptance Tests Tests are ExamplesUse concrete examplesSpecify concrete behaviorNo ambiguity allowed Licensed Under Creative Commons by Naresh Jain 54

Writing Good Acceptance Tests Login Test Possibilities1. Insert into User table values (’wallace’,‘ilikecheeze’) Licensed Under Creative Commons by Naresh Jain 55

Writing Good Acceptance Tests Login Test Possibilities1. Insert into User table values (’wallace’,‘ilikecheeze’)2. Open a browser to the URL http://localhost/myapp Licensed Under Creative Commons by Naresh Jain 55

Writing Good Acceptance Tests Login Test Possibilities1. Insert into User table values (’wallace’,‘ilikecheeze’)2. Open a browser to the URL http://localhost/myappAvoid Implementation Details Licensed Under Creative Commons by Naresh Jain 55

Good Acceptable Criteria and Tests Licensed Under Creative Commons by Naresh Jain 56

Good Acceptable Criteria and Tests S - SPECIFIC - Explicitly deﬁned and deﬁnite Licensed Under Creative Commons by Naresh Jain 56

Good Acceptable Criteria and Tests S - SPECIFIC - Explicitly deﬁned and deﬁnite M - MEASURABLE - Possible to observe and quantify Licensed Under Creative Commons by Naresh Jain 56

Good Acceptable Criteria and Tests S - SPECIFIC - Explicitly deﬁned and deﬁnite M - MEASURABLE - Possible to observe and quantify A - ACHIEVABLE - Capable of existing or taking place Licensed Under Creative Commons by Naresh Jain 56

Good Acceptable Criteria and Tests S - SPECIFIC - Explicitly deﬁned and deﬁnite M - MEASURABLE - Possible to observe and quantify A - ACHIEVABLE - Capable of existing or taking place R - RELEVANT - Having a connection with the story Licensed Under Creative Commons by Naresh Jain 56

Good Acceptable Criteria and Tests S - SPECIFIC - Explicitly deﬁned and deﬁnite M - MEASURABLE - Possible to observe and quantify A - ACHIEVABLE - Capable of existing or taking place R - RELEVANT - Having a connection with the story T - TIME-BOUND – When will the outcome be observed Licensed Under Creative Commons by Naresh Jain 56

Writing Good Acceptance TestsAvoid Implementation Details Acceptance Tests View UI Model and Presenter Business Tier Data Store Licensed Under Creative Commons by Naresh Jain 57

Writing Good Acceptance Tests Login Test: Possible SolutionAdd user to system: (’wallace’, ‘ilikecheeze’)Process login with username ‘wallace’ and password ‘blah’Check login failedProcess login with username ‘wallace’ and password ‘ilikecheeze’Check login succeeded Licensed Under Creative Commons by Naresh Jain 58

ToolsLicensed Under Creative Commons by Naresh Jain 59

Tools Commercial Tools WinRunner TestPartner EggPlant Silk QTP TestComplete RFT Squish WindowTesterAre not suitable for Acceptance Testing in an Agile environment Licensed Under Creative Commons by Naresh Jain 60

Tools Open Source Options FIT Sahi Frankenstein FitNesse Watir Cucumber Selenium Abbot RSpec/JBehaveAmong the few tools that support Test Driven Development Licensed Under Creative Commons by Naresh Jain 61

WikiLicensed Under Creative Commons by Naresh Jain 62

Wiki What is it?A collaborative web siteEditable by anyCreated by Ward CunninghamEvery project should have onehttp://c2.com/wikihttp://en.wikipedia.com Licensed Under Creative Commons by Naresh Jain 63

Wiki Creating TestsUse Wiki syntax to create a page with test tablesLabel the page as a Test Page Use a page name of the form Test… Turn on the Test propertyMake sure your Fixtures are in the classpath Use !path widgetMechanics !path values are concatenated Java command to start FitServer is executed Testable HTML is passed to FitServer FitServer runs the tests Results are passed back to FitNesse Licensed Under Creative Commons by Naresh Jain 64

Wiki Creating Suites There are 2 ways to make SuitesSet the Suite property Create a page with the Suite property Created test pages inside this page When the suite is executed, all child test pages will be included in the suite executionUse the !see widget !see <name of test page> All “included” tests pages will be included in the suite execution Run a Suite by clicking the Suite button Licensed Under Creative Commons by Naresh Jain 65

Hands-on SessionConference Proposal Submission PortalSome sample Stories Should be able to submit new proposal Should be able to list all submitted proposal Submitting proposal with same title should display appropriate error message Should be able to delete submitted proposal based on the title Should be able to delete submitted proposal based on the title Should be able to search proposals by title Should be able to search proposals by ID Should be able to find all proposal by an authors name Licensed Under Creative Commons by Naresh Jain 66

BreakLicensed Under Creative Commons by Naresh Jain 67

PatternsLicensed Under Creative Commons by Naresh Jain 68

Patterns Organizing TestsAllowing customers to add new tests without breaking the build Licensed Under Creative Commons by Naresh Jain 69

Patterns Version ControlKeeping the acceptance test in version control with the code. Licensed Under Creative Commons by Naresh Jain 70

Patterns Cross-Functional PairingUsing FitNesse based acceptance tests for collaboration between cross-functional team members. Licensed Under Creative Commons by Naresh Jain 71

Patterns ATDDAcceptance Test Driven Development Licensed Under Creative Commons by Naresh Jain 72

Patterns CSTTCleanup, Setup, Test, Teardown Licensed Under Creative Commons by Naresh Jain 73

Patterns Independent TestsTests shouldn’t depend on each other.Tests leave the system in the same state it started in. Licensed Under Creative Commons by Naresh Jain 74

Patterns Dynamic StubbingAvoiding complications of external systems. Licensed Under Creative Commons by Naresh Jain 75

Patterns Non-Production Setup/TeardownUsing non-production light weigh code for setup and teardown.Helps test only what you want to test. Licensed Under Creative Commons by Naresh Jain 76

Patterns Suite LevelsCreating different levels of suites depending on the depth/level offeedback desired.Smoke, Current Iteration/Sprint, Regression Licensed Under Creative Commons by Naresh Jain 77

Patterns DRYUsing !include to avoid repeating yourself. Licensed Under Creative Commons by Naresh Jain 78

Patterns Make it RealWrite ATs as close as possible to the real environment. Licensed Under Creative Commons by Naresh Jain 79

Patterns Fixture EvolutionAllow Fixture implementation to evolve over time.Treat ﬁxtures as ﬁrst class citizens. Licensed Under Creative Commons by Naresh Jain 80

Patterns At Least One Test/StoryEvery story should have at least one acceptance testAvoid long/multipurpose tests. Licensed Under Creative Commons by Naresh Jain 81

Anti-PatternsLicensed Under Creative Commons by Naresh Jain 82

Anti-Patterns Developer ATsDevelopers writing acceptance tests by themselves, for themselves. Licensed Under Creative Commons by Naresh Jain 83

Anti-Patterns Unit TestingDon’t write ATs at the unit testing level Unit tests are implementation speciﬁc ATs are NOT implementation speciﬁc Licensed Under Creative Commons by Naresh Jain 84

Anti-Patterns QA Testing ToolHard to write tests up front.Perhaps only on large projects. Licensed Under Creative Commons by Naresh Jain 85

Anti-Patterns Silver BulletTrying to use FitNesse for all types of Acceptance Tests UI testing XML testing Licensed Under Creative Commons by Naresh Jain 86

Anti-Patterns Test AfterWriting tests after the code is already written. Licensed Under Creative Commons by Naresh Jain 87

Anti-Patterns Hidden Test DataHiding test data in the ﬁxtures. Licensed Under Creative Commons by Naresh Jain 88

Anti-Patterns Implementation Dependent ATsMaking test pages (tables) dependent on implementation details anddata structures. Licensed Under Creative Commons by Naresh Jain 89

Anti-Patterns Logging in Your FixturesPutting log statements or print statements in the ﬁxture code.Fixtures are probably too complicated. Licensed Under Creative Commons by Naresh Jain 90

ReferencePortions of this presentation is adopted from Micah Martin’sIntroduction to Automated Acceptance Tests PresentationKent Beck, Test Driven Development By Example."Agile Testing Directions" - Brian Marickhttp://www.opensourcetesting.org/ Licensed Under Creative Commons by Naresh Jain 91

The End Questions? naresh@agilefaqs.com http://blogs.agilefaqs.comLicensed Under Creative Commons by Naresh Jain 92

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Acceptance Test Driven Development

by Naresh Jain on Apr 12, 2008

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Acceptance Test Driven Development — Presentation Transcript