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Rewrite two tests with Prop.classify instead

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Sven van Heugten 2026-01-16 21:17:37 +01:00
parent 79405b3841
commit f22f31ee6c
3 changed files with 29 additions and 24 deletions
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39
NightLight.Core.Tests/NightLightTests.fs
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@ -25,33 +25,24 @@ type NightLightTests() =
fakeHome
[<Property(Arbitrary = [| typeof<ArbitraryLight> |])>]
let ``All lights should be either off, white or yellow during the day`` (light: Light) =
genBiasedInteractions light
|> ensurePartOfDayIs Day
|> ensureStartsWithTimeChanged
|> Arb.fromGen
|> Prop.forAll
[<Property>]
let ``All lights should either be off or have the right color`` () =
genInteractions |> ensureStartsWithTimeChanged |> Arb.fromGen |> Prop.forAll
<| fun interactions ->
let fakeHome = createFakeHomeWithNightLightAndInteract interactions
let partOfDay = getPartOfDayAfterInteractions interactions
fakeHome.LightShouldHaveState light (function
| Off -> true
| On(_, color) -> color = White || color = Yellow)
[<Property(Arbitrary = [| typeof<ArbitraryLight> |])>]
let ``All lights should be either off or red during the night`` (light: Light) =
genBiasedInteractions light
|> ensurePartOfDayIs Night
|> ensureStartsWithTimeChanged
|> Arb.fromGen
|> Prop.forAll
<| fun interactions ->
let fakeHome = createFakeHomeWithNightLightAndInteract interactions
fakeHome.LightShouldHaveState light (function
| Off -> true
| On(_, color) -> color = Red)
fakeHome.LightStates
|> Seq.forall (function
| _, Off -> true
| _, On(_, color) ->
match partOfDay with
| Day -> color = White || color = Yellow
| Night -> color = Red)
|> Prop.classify (partOfDay = Day) "day"
|> Prop.classify (partOfDay = Night) "night"
|> Prop.trivial (fakeHome.LightsThatAreOn.Length = 0)
|> Prop.collect $"{fakeHome.LightsThatAreOn.Length} light(s) on"
[<Property(Arbitrary = [| typeof<ArbitraryNonRemotelyControlledLight> |])>]
let ``All non-remotely controlled lights with power should be on`` (light: Light) =