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Enhanced Web Service TestingKirk SteffkeAppExchange Practice Leadkirk@crmscience.com@kirkevonphillyA Better Mock Structure

Test Coverage OverviewReview of Native Testing MethodsWebServiceMock and HttpCalloutMock InterfacesStaticResourceCalloutMockMultiStaticResourceCalloutMockSample ScenariosBetter Mock StructureSetupReviewAgendaDuring this session

Test Coverage Overview

Who: DevelopersWhat: Code written about codeWhen: Production Org bound codeWhere: Sandboxes and developer orgsWhy: Safety firstApex Test CoverageWho, What, When, Where, and Why

Apex Test CoverageWho, What, When, Where, and WhyWorks!Doesnt Work!ShouldGood work!!Shouldnt!(silence)

Apex Test CoverageA Bit More of How

Grandmas Famous RecipeWrite code to do somethingCreate test classMark with @isTestCreate test methodCreate test dataInvoke code being testedAssert (+ or -)

Native Testing StrategiesThe Tools that are Already in your Toolbox

Exist/defined in a separate classReturns single callout responseWebServiceMock for WSDL based SOAP calloutsHttpCalloutMock for testing Http calloutsDefined by content of text file in Static ResourceReturns response for a single endpointSimilar to StaticResourceCalloutMockStatic Resource contains response for multiple endpointsWebServiceMock and HttpCalloutMock InterfacesStaticResourceCalloutMockMultiStaticResourceCalloutMockDocumentation: bit.ly/df15mock3Documentation: bit.ly/df15mock1Documentation: bit.ly/df15mock2Options for Testing HTTP CalloutsOut-of-the-box Tools

Class with single methodMethod makes a calloutTesting with:HttpCalloutMock InterfaceStaticResourceCalloutMock

Upcoming ExamplesExamples 1 and 2: Single CalloutClassCallout MethodExternal API EndpointRequestResponse

Class with three methodsTwo methods make different calloutsOne method calls both callout methodsTesting with:MultiStaticResourceCalloutMock

Upcoming ExamplesExample 3: Multiple CalloutsExternal API Endpoint 2RequestResponseClassExternal API Endpoint 1RequestResponse

Both CalloutsCallout Method 2Callout Method 1

Code DemosExamples 1, 2, and 3

Complex ScenarioA hypothetical, but real-world model to help you digest

Batch jobImport of Contacts from remote systemRemote system has an APITwo endpoints/api/ContactCount/api/ContactsRemote Import via BatchOverview

/api/ContactCountReturns # of Contact records to be importedResult can change during span of batch execution/api/ContactsReturns x number of contactsPaginatedPage=1 returns 1st 200 recordsPage=2 returns 2nd 200 recordsand so onRemote Import via BatchMeet the Endpoints

Batch is calledStart() methodEach execute() iteration performs 2 callouts1st checks total # of records available2nd imports recordsEnd of execute determines if more records?Execute may run for many iterationsIf no more records or limits, finish()Restart cycleEndRemote Import via BatchBatch Flow

Class with three methodsTwo methods make different calloutsOne method calls both callout methodsSimulate batch w/ a loop

Upcoming ExamplesExample 4: Multiple EverythingContact DataRequestResponseClassCallout Method 1Contact CountRequestResponseCallout Method 2

x10

LimitationsWorking with Our Tools

HttpCalloutMock Interface and StaticResourceMockCan only handle one endpointSingle responseSingle setup prior to invoking actual calloutsMultiStaticResourceCalloutMockHandle multiple endpointsSingle response for eachSingle setup prior to invoking actual callouts

ProblemsContinued

ChallengeUse one or more standard toolExtend the usageCreate queue of expected responses per endpointConsider re-usability

Response GeneratorThe Playlist Structure

MethodGET/POST/etcEndpoint/api/endpointResponses[0] response 1

[1] response 2

[x] response x

Like music at a partySome want to rockSome want to danceSometimes you want to hear the same song again

Response GeneratorThe Count Playlist

MethodGETEndpointContact CountResponses[0] 10 Contacts

[1] 12 Contacts

[x] 12 Contacts

Response GeneratorThe Data Playlist

MethodGETEndpointContact DataResponses[0] Data 0-199

[1] Data 200-399

[9] Data x

Code DemoExample 4

Testing the SolutionTestCalloutClass

Count or Contact callout# of loop iterationCount data 10, 12, 12, Use 1st, discardUse 2nd, dont discardContact data incrementsProvided per page response

ResourcesBlog.crmscience.com

Blog Post: http://bit.ly/df15_kirk_blogUnmanaged Package with all examples: http://bit.ly/df15_kirk_packLink to deck: http://bit.ly/df15_kirk_deck

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