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namespace LivingVillage.Kernel.Tests
open Microsoft.VisualStudio.TestTools.UnitTesting
open LivingVillage.Kernel
open LivingVillage.Kernel.Sim
module private RumorHarness =
let private needs =
{ Hunger = 100.0f
Energy = 100.0f
Social = 100.0f
Money = 50.0f }
let private personality =
{ Drive = 0.5f
Aggression = 0.0f
Extraversion = 0.8f
Honesty = 0.5f
Greed = 0.5f }
let private npc id =
{ Id = NpcId id
Pos = { X = float32 (id * 10); Y = 0.0f }
Inventory = Map.empty
Mind =
{ Needs = needs
Personality = personality
Action = Wander
Target = actionTarget Wander
ActionAge = minActionTicks
EffectDone = true
HungerFlagged = false
Memory = [] } }
let world tick count =
{ Tick = tick
Time = float tick * dtSeconds
Rng = Rng.ofSeed 11UL
Avatar =
{ Pos = { X = 0.0f; Y = 0.0f }
Mind =
{ Needs = needs
Personality = personality
Action = Wander
Target = actionTarget Wander
ActionAge = 0L
EffectDone = false
HungerFlagged = false
Memory = [] } }
NoHost = { Reserved = 0UL }
Npcs = Array.init count npc
Events = []
Rumors = []
Annals = [] }
let readyForChat (world: World) : World =
{ world with
Npcs =
world.Npcs
|> Array.map (fun npc ->
{ npc with
Mind =
{ npc.Mind with
Action = Wander
Target = actionTarget Wander
ActionAge = minActionTicks
EffectDone = true } }) }
let chat narrator receiver world =
match Sim.chat { Narrator = NpcId narrator; Receiver = NpcId receiver } world with
| ChatSucceeded (_, next) -> next
| ChatRejected (failure, _) -> Assert.Fail($"chat rejected: {failure}"); Unchecked.defaultof<World>
let rumorId (RumorId id) = id
let orderedRumors (world: World) =
world.Rumors |> List.sortBy (fun rumor -> rumorId rumor.Id)
let traceText (world: World) =
orderedRumors world
|> List.map (fun rumor ->
let parent = rumor.Parent |> Option.map rumorId |> Option.map string |> Option.defaultValue "-"
sprintf "%d|%d|%d|%d|%d|%s|%d"
(rumorId rumor.Id)
rumor.Tick
(match rumor.Source with NpcId id -> id)
(match rumor.Narrator with NpcId id -> id)
(match rumor.Receiver with NpcId id -> id)
parent
rumor.Depth)
|> String.concat "\n"
[<TestClass>]
type RumorTests () =
[<TestMethod>]
member _.IdleChatsCreateThreeHopTraceableRumorPathWithinTwoDays () =
let initial = RumorHarness.world 0L 4
let first = RumorHarness.chat 0 1 initial
let second = RumorHarness.chat 1 2 (RumorHarness.readyForChat { first with Tick = ticksPerDay })
let third = RumorHarness.chat 2 3 (RumorHarness.readyForChat { second with Tick = 2L * ticksPerDay })
let ordered = RumorHarness.orderedRumors third
Assert.AreEqual<int>(3, third.Rumors.Length)
Assert.AreEqual<int>(3, ordered.Length)
let root = ordered.[0]
let retelling = ordered.[1]
let final = ordered.[2]
Assert.AreEqual<NpcId>(NpcId 0, root.Source)
Assert.AreEqual<NpcId>(NpcId 0, root.Narrator)
Assert.AreEqual<NpcId>(NpcId 1, root.Receiver)
Assert.IsTrue(root.Parent.IsNone)
Assert.AreEqual<int>(0, root.Depth)
Assert.AreEqual<RumorId>(root.Id, retelling.Parent |> Option.get)
Assert.AreEqual<NpcId>(root.Source, retelling.Source)
Assert.AreEqual<NpcId>(NpcId 1, retelling.Narrator)
Assert.AreEqual<NpcId>(NpcId 2, retelling.Receiver)
Assert.AreEqual<int>(1, retelling.Depth)
Assert.AreEqual<RumorId>(retelling.Id, final.Parent |> Option.get)
Assert.AreEqual<NpcId>(NpcId 2, final.Narrator)
Assert.AreEqual<NpcId>(NpcId 3, final.Receiver)
Assert.AreEqual<int>(2, final.Depth)
let path = Sim.rumorPath third final.Id
CollectionAssert.AreEqual([| root; retelling; final |], List.toArray path)
[<TestMethod>]
member _.DuplicateRetellingDoesNotCreateAnotherRumorNode () =
let first = RumorHarness.chat 0 1 (RumorHarness.world 0L 3)
let second = RumorHarness.chat 1 2 (RumorHarness.readyForChat first)
let duplicate = RumorHarness.chat 1 2 (RumorHarness.readyForChat second)
Assert.AreEqual<int>(2, second.Rumors.Length)
Assert.AreEqual<int>(2, duplicate.Rumors.Length)
Assert.AreEqual<string>(RumorHarness.traceText second, RumorHarness.traceText duplicate)
[<TestMethod>]
member _.StaleRumorIsNotUsedAsParentForAReTelling () =
let first = RumorHarness.chat 0 1 (RumorHarness.world 0L 3)
let stale =
first
|> RumorHarness.readyForChat
|> fun world -> { world with Tick = rumorFreshnessTicks + 1L }
let next = RumorHarness.chat 1 2 stale
let latest = RumorHarness.orderedRumors next |> List.last
Assert.IsTrue(latest.Parent.IsNone, "stale memory must not be reused as a parent")
Assert.IsTrue(latest.Source = NpcId 1, "a stale rumor starts a new local source")
Assert.IsTrue(Sim.rumorStrengthAt next.Tick (RumorHarness.orderedRumors next |> List.head) < rumorMinimumStrength)
[<TestMethod>]
member _.InvalidParticipantsLeaveWorldUnchanged () =
let before = RumorHarness.world 10L 2
let requests =
[ { Narrator = NpcId 9; Receiver = NpcId 1 }
{ Narrator = NpcId 0; Receiver = NpcId 9 }
{ Narrator = NpcId 0; Receiver = NpcId 0 } ]
for request in requests do
match Sim.chat request before with
| ChatRejected (_, unchanged) -> Assert.AreEqual<World>(before, unchanged)
| ChatSucceeded _ -> Assert.Fail($"expected invalid chat to be rejected: {request}")
[<TestMethod>]
member _.SameSeedAndChatOperationsProduceIdenticalRumorTrace () =
let run seed =
let initial = { RumorHarness.world 0L 4 with Rng = Rng.ofSeed seed }
let first = RumorHarness.chat 0 1 initial
let second = RumorHarness.chat 1 2 (RumorHarness.readyForChat { first with Tick = ticksPerDay })
let third = RumorHarness.chat 2 3 (RumorHarness.readyForChat { second with Tick = 2L * ticksPerDay })
RumorHarness.traceText third
Assert.AreEqual<string>(run 4242UL, run 4242UL)
[<TestMethod>]
member _.RumorTraceTextContainsStableMetadataAndReplayablePaths () =
let initial = RumorHarness.world 0L 4
let first = RumorHarness.chat 0 1 initial
let second = RumorHarness.chat 1 2 (RumorHarness.readyForChat { first with Tick = ticksPerDay })
let third = RumorHarness.chat 2 3 (RumorHarness.readyForChat { second with Tick = 2L * ticksPerDay })
let expected =
String.concat "\n"
[ sprintf "rumor_trace tick=%d count=3" (2L * ticksPerDay)
"rumor id=0 tick=0 origin_tick=0 source=0 narrator=0 receiver=1 parent=- depth=0 strength=1.000000 path=0"
sprintf "rumor id=1 tick=%d origin_tick=0 source=0 narrator=1 receiver=2 parent=0 depth=1 strength=0.500000 path=0,1" ticksPerDay
sprintf "rumor id=2 tick=%d origin_tick=0 source=0 narrator=2 receiver=3 parent=1 depth=2 strength=0.250000 path=0,1,2" (2L * ticksPerDay) ]
Assert.AreEqual<string>(expected, Sim.rumorTraceText third)
|
