32 lines
1.4 KiB
FSharp
32 lines
1.4 KiB
FSharp
namespace NightLight.Core.Tests
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open NightLight.Core.Core
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open NightLight.Core.Tests.ArbitraryInteractionLists
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open FsCheck.Xunit
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type NightLightTests() =
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let createFakeHomeWithNightLightAndInteract (interactions: Interaction list) =
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let mutable nightLightStateMachine = NightLightStateMachine()
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let fakeHome = FakeHome()
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fakeHome.OnEventPublished.Add(fun event ->
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match event |> nightLightStateMachine.OnEventReceived with
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| Ok(newState, commands) ->
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commands |> Seq.iter fakeHome.ProcessCommand
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nightLightStateMachine <- newState
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| Error error -> failwith $"Unexpected error {error}")
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fakeHome.Interact interactions
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fakeHome
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[<Property(Arbitrary = [| typeof<ArbitraryInteractionsListThatEndsDuringTheNight> |])>]
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let ``Lights should be red during the night`` (interactions: Interaction list) =
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let fakeHome = createFakeHomeWithNightLightAndInteract interactions
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fakeHome.ForAllLightsThatAreOn(fun (_, _, color) -> color = Red)
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[<Property(Arbitrary = [| typeof<ArbitraryInteractionsListThatEndsDuringTheDay> |])>]
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let ``Lights should be white or yellow during the day`` (interactions: Interaction list) =
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let fakeHome = createFakeHomeWithNightLightAndInteract interactions
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fakeHome.ForAllLightsThatAreOn(fun (_, _, color) -> color = White || color = Yellow)
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