NBomber.FSharp

F# Computation Expressions for NBomber API

Package	Description	Status
NBomber.FSharp	CE for test runners, scenarios and steps
NBomber.FSharp.Http	CE for http calls steps, similar to NBomber.Plugins.Http
NBomber.FSharp.Hopac	Hopac support for the above, depends on both

Scenario

Fluent API	Computation Expression
Scenario.create "test" [step] |> Scenario.withWarmUp (seconds 10) |> Scenario.withLoadSimulations [ KeepConstant(copies = copiesCount, during = seconds 2) ]	scenario "test" { warmUp (seconds 10) load [ KeepConstant(copies = copiesCount, during = seconds 2) ] init (fun _ -> Task.FromResult()) clean (fun _ -> Task.FromResult()) steps [myStep] // or if just one step myStep }

Step

The overloads of step's custom operation execute accepts a function taking a step context and returning either Response or unit directly or wrapped in a task, async or even in a Hopac job

Fluent API	Computation Expression
Step.create("step name", myWebsocketPool, myGuidFeed, (fun ctx -> task { let doSomethingWithSocket (_: Guid) (_: ClientWebSocket) = "" ctx.Logger.Information("Can take feed and client {Ret}", takeBoth ctx.FeedItem ctx.Client) return Response.Ok() }), true)	step "step name" { dataFeed myGuidFeed myWebsocketPool execute (fun ctx -> let doSomethingWithSocket (_: Guid) (_: ClientWebSocket) = "" ctx.Logger.Information("Can take feed and client {Ret}", takeBoth ctx.FeedItem ctx.Client) ) doNotTrack }

Client factory

Simplified construction of clients. Notable differences are:

• connect and disconnect functions are more tolerant for missing type signatures and arguments
• no need for cancellationToken argument if it is not used in connect or disconnect functions
• disconnect can be omitted completely, if the type of created connection implements IDisposable or can be just disposed.
• count of connections can be omitted too, it defaults to 1
• even less verbose compared to the C# API

Fluent API	Computation Expression
let clientFactory = ClientFactory.create( name = "db connections", initClient = (fun i ctx -> task { let c = new NpgsqlConnection(connectionString) do! c.OpenAsync(ctx.CancellationToken) return c }), disposeClient = (fun (c:NpgsqlConnection, ctx) -> c.CloseAsync(ctx.CancellationToken)), clientCount = 100)	let clientFactory = clients "db connections" { count 100 connect(fun i ctx -> task { let c = new NpgsqlConnection(connectionString) do! c.OpenAsync(ctx.CancellationToken) return c }) disconnect(fun c ctx -> c.CloseAsync(ctx.CancellationToken)) }

Reporter

Imagine you need just a html report. Then it is as short as

report { html }

Fluent API	Computation Expression
NBomberRunner.withReportFormats [ ReportFormat.Csv ReportFormat.Txt ReportFormat.Md ReportFormat.Html ] |> NBomberRunner.withReportingSinks [ influxdbSink customFormatSink ] (seconds 10) |> NBomberRunner.withReportFolder "reportsFolder" |> NBomberRunner.withReportFileName "reportFile" // or if none |> NBomberRunner.withoutReports ...	testSuite "Suite name" { report { csv text markdown html sink influxdbSink sink customFormatSink interval (seconds 10) folderName "reportsFolder" fileName "reportFile" } // or if none noReports ... }

Other runner configuration

Fluent API

Computation Expression

NBomberRunner.registerScenarios [] |> NBomberRunner.withTestName "Test name" |> NBomberRunner.withTestSuite "Suite name" |> NBomberRunner.withoutReports |> NBomberRunner.disableHintsAnalyzer |> NBomberRunner.loadConfig "loadTestConfig.json" |> NBomberRunner.loadInfraConfig "infrastructureConfig.json" |> NBomberRunner.withWorkerPlugins [] |> NBomberRunner.withApplicationType ApplicationType.Console // |> NBomberRunner.runWithArgs args |> NBomberRunner.run |> evaluateStatsFunction

testSuite "Suite name" { testName "Test name" noReports noHintsAnalyzer scenarios scenarioBuilderTest config "loadTestConfig.json" infraConfig "infrastructureConfig.json" plugins [ (* plugins list*) ] runConsole // runAsProcess // runWithArgs args // runWithExitCode }