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SQLServerUnitTestingSQLServerUnitTesting

JoelChampagne,

July2011MarkGinnebaugh,UserGroupLeader,

.

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20yearsconsultingexperience

argem ss oncr t ca systems

.NET,

SQL

2000

2008,

SSAS,

SSRS,

SSIS Architecture,DataArchitecture

Focusondeveloperproductivitytools

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UnitTesting whatsaunit?

n es ng asprovenva ua e nmanylanguages

thosebreakagesearly

SomemaysaySQLhasgottentheshortendoft estic ere orvariousreasons Harder: time/efforttowritetestsforpossibly

thousandsofob ects man ofwhichcouldbeCRUD

Separationofdevelopmentprocess

Statefulness: dependenceonspecificdatatomakeit

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Supposetheresanexistingprocedurewhich

has

been

working

for

ages

updatingthisprocedureforwhateverreason

e. . different database

Failsatruntime youwouldhaveknown,

,

Also,whatdoesSSMStelluswhenwecommit

e ro enproce ure

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Scheduled

Strategic

Build

/

moving

objects Automation

Includesonchange

ContinuousIntegrationstrategies

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Setuptests,perobject

Can ave expecte resu ts

SchemaViewofferseasywaytoscript,per

object

Demo

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Observations Quitepowerfulaswecancraftdatadriven

NotnecessarilytestingSQLdirectly(canbe.NETcom onents

Nextslideexample

Hoststestsinrunnablecode S Lscri tsthemselvesstoredinresourcefile)

Inte ratesas artofalar ertestin infrastructureavailablewithVisualStudio

Testrigs,agents,etc.

Canmakeascomplexasdesired

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Data

driven

example

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SQLHero Problemstryingtoaddress:

Developersoftendontliketoinvesttimeinwritingtests

Wanttoexercisetestsearlyandoften! OnALTERandscheduled(andondemand)

Leveragetestswe o aveatstrateg ct mes: e.g.scr pt ngchangestoanewplace

Canincludetheseautomaticallyfromtheschemacomparetool!

Settingoftargets,notjustthresholds(sowecandoreporting/analysisvs.targets)

strictlytietoasingledatabase)

Realityofdatabaseswithhundredsoftables,reference, .

fromscripts,etc.

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Confi uration

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TestingPolicies.xmlExample: aproc parameterthatendsinAreaID,populateusingaselectfromAreatablethatisfiltered

AreaID$

SELECTAreaID FROMAreaaWHEREa.AreaAbbr LIKE'A%'

Example: aproc parameterof@DocTypeID thatrelatestoatablecalledCommDocumentType

@DocTypeID

CommDocumentType

Example: asampleplugin,putintheprogramfiles\sqlhero\pluginsdirectory

SampleTestingPlugIn.dll

SampleTestingPlugIn.MyTestPolicy

< >

Example: allobjectsintheDebugschemawouldbeexcludedfromtesting

^\[?Debug\]?\.

True

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capturedworkloadstoseeifanalready

Isusingarandomizedprocess,butinfluenced

Nosideeffects

Rollbackperobject Advantages/Disadvantages

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Creatin

Tests

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ViaTemplate

ViaTemp ate,wit para e execution

From

SHCommand.exe From.sqlheroproj VisualStudioprojecttype

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Some

Observations Presenceoftouchtestinghasprovenvaluefrom

SQLHerotestingcanaugmentVStesting: VSforformalunittestswhicharepartofbuild

process,complexcaseswherecanuseC#

SHfortouchteststhatarejusttherebehindthescenestofindcertainissuesfor outrans arentl

OutputofSHtestingtemplatecanbeusedinVS,ifyoulike!

consideringsomenewfeaturesalongthelinesofturningcapturedworkloadsintocomplextestcases(C#)

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Some

Observations Presenceoftouchtestinghasprovenvaluefrom

SQLHerotestingcanaugmentVStesting: VSforformalunittestswhicharepartofbuild

process,complexcaseswherecanuseC#

SHfortouchteststhatarejusttherebehindthescenestofindcertainissuesfor outrans arentl

OutputofSHtestingtemplatecanbeusedinVS,ifyoulike!

consideringsomenewfeaturesalongthelinesofturningcapturedworkloadsintocomplextestcases(C#)

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A

more

com lex

use

case Problemstryingtoaddress:

Dataqualityindevelopmentregions

Securityandisolationofproductiondata

Inprogresswork(usingexternalsourcecontrol?)

Howdoesunittestingrelate?

Integrated

as

part

of

the

process

to

ensure

things

still

w u

Overallprocesscanserveasonewaytoachievethecovetedknownstartingpoint easily

YMMV

may

e

simp er

or

more

comp ex

i e y

supported!)

Watchforawhite a erdescribin thisin reatdetail

Demo

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Amorecomplexusecase illustrated

Prod

(remote) QAQANewBackup

Backup/

Restore

QANew(remote)

Remove

Scramble

sensitive

data

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Amorecomplexusecase illustrated

Detach Move

Prod

(remote) QAQANewBackup

Files,Attach

Sync

Pending

Changes

QANew

Backup

Restore

FTPLanding

Zone

QANew

Performtests

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Amorecomplexusecase illustrated

Prod

(remote) QAOld

Email

relevant

arties about

QA

completion

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Puttingittogether

Build >Deploy(localorshared)

Canexercisestaticcodeanalysis

Can

use

MSBuild,

which

in

turn

integrates

with

TFS

/

CI

options SQLHero

Addstouchtestingcapabilityduringdevelopmentcycle,transparently

Sourcecontrolintegrationinterops withDatabaseProjects!

Largedatasetsareencouragedandeasytobuild Compliancecheckingincorporatedthereactsagainstrealdatabases,can

bescheduled,emaildelivery(advantages!)

Supportsautomatedoperations ,

prettyflawlesslywithasimple.cmd script)

Moreusecasestosupport: testingfromacollectedworkload

Yourenvironment Dodevelopersdoactualdatamodeling?

Do

developers

want

a

shared

environment?

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LookingforCustomerAdvisoryBoard

Freeenterpriseeditioninexchangeforongoing

features)

Nextreleasecomin soon alon withnewwhitepapers)

Stillfree!

www.codexframework.com (Library) @sqlheroguy

joelc@codexframework.com

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Tolearnmoreorin uireabouts eakin o ortunities leasecontact:MarkGinnebaugh,UserGroupLeader

mark@designmind.com