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357module Duets.Simulation.Tests.MiniGames.Blackjack
open NUnit.Framework
open FsUnit
open Test.Common
open Test.Common.Generators
open Aether
open Duets.Common
open Duets.Entities
open Duets.Entities.SituationTypes
open Duets.Simulation
open Duets.Simulation.MiniGames
let private dummyPlayingGame = MiniGame.Blackjack.create 100m<dd>
(* -------- Before the game. ------- *)
[<Test>]
let ``startGame sets the situation to betting`` () =
Blackjack.startGame
|> should equal (SituationChanged(PlayingMiniGame(Blackjack(Betting))))
(* -------- Betting. -------- *)
[<Test>]
let ``betting is not allowed when not in the Betting state`` () =
Blackjack.bet dummyState (Playing dummyPlayingGame) 50m<dd>
|> Result.unwrapError
|> should equal Blackjack.BettingNotAllowed
[<Test>]
let ``betting is not allowed when the bet is less than 0`` () =
Blackjack.bet dummyState Betting 0m<dd>
|> Result.unwrapError
|> should equal Blackjack.InvalidBet
[<Test>]
let ``betting is not allowed when the bet is more than 100`` () =
Blackjack.bet dummyState Betting 101m<dd>
|> Result.unwrapError
|> should equal Blackjack.InvalidBet
[<Test>]
let ``betting is not allowed when player does not have enough balance`` () =
let playerAccount = dummyState |> Queries.Bank.playableCharacterAccount
let state =
dummyState
|> State.Bank.setBalance playerAccount (Incoming(0m<dd>, 50m<dd>))
Blackjack.bet state Betting 80m<dd>
|> Result.unwrapError
|> should equal Blackjack.NotEnoughFunds
[<Test>]
let ``betting with enough balance and an allowed amount sets the situation to playing``
()
=
let effect = Blackjack.bet dummyState Betting 50m<dd> |> Result.unwrap
match effect with
| SituationChanged(PlayingMiniGame(Blackjack(Playing _))) -> ()
| _ -> failwith "Unexpected effect"
(* -------- Playing. -------- *)
let private game =
let effect = Blackjack.bet dummyState Betting 50m<dd> |> Result.unwrap
match effect with
| SituationChanged(PlayingMiniGame(Blackjack(Playing game))) -> game
| _ -> failwith "Unexpected effect"
[<Test>]
let ``hitting when not playing is not allowed`` () =
Blackjack.hit dummyState Betting
|> Result.unwrapError
|> should equal Blackjack.NotAllowed
[<Test>]
let ``hitting and getting less than 22 returns a Continue and updated situation effects``
()
=
let hitAllowedGame =
{ game with
PlayerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.Two }
{ Suit = Suit.Diamonds
Rank = Rank.Two } ]
Score = ScoreType.Single 4 } }
let result =
Blackjack.hit dummyState (Playing hitAllowedGame) |> Result.unwrap
match result with
| Blackjack.Continue effects ->
let situationEffect = effects |> List.head
match situationEffect with
| SituationChanged(PlayingMiniGame(Blackjack(Playing gameState))) ->
gameState.PlayerHand.Score
|> Blackjack.scoreValue
|> should be (greaterThanOrEqualTo 4)
| _ -> failwith "Unexpected effect"
| _ -> failwith "Unexpected result"
[<Test>]
let ``hitting and getting over 21 results in busted and money is taken from the player``
()
=
(* Will deal a 10 card. *)
use _ = changeToStaticRandom 9
let bustGame =
{ game with
PlayerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.King } ]
Score = ScoreType.Single 10 } }
let result = Blackjack.hit dummyState (Playing bustGame) |> Result.unwrap
match result with
| Blackjack.Bust(game, effects) ->
game.PlayerHand.Score
|> Blackjack.scoreValue
|> should be (greaterThanOrEqualTo 22)
effects |> List.head |> should be (ofCase (<@ SituationChanged @>))
effects |> List.item 1 |> should be (ofCase (<@ MoneyTransferred @>))
| _ -> failwith "Unexpected result"
[<Test>]
let ``standing when both player and dealer have the same hand value results in push``
()
=
let pushGame =
{ game with
PlayerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.King } ]
Score = ScoreType.Single 20 }
DealerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.King } ]
Score = ScoreType.Single 20 } }
let result = Blackjack.stand dummyState (Playing pushGame) |> Result.unwrap
match result with
| Blackjack.Push(game, effects) ->
game.PlayerHand.Score |> Blackjack.scoreValue |> should be (equal 20)
game.DealerHand.Score |> Blackjack.scoreValue |> should be (equal 20)
effects |> List.head |> should be (ofCase (<@ SituationChanged @>))
| _ -> failwith "Unexpected result"
[<Test>]
let ``standing when both player and dealer have 21 results in push`` () =
let pushGame =
{ game with
PlayerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Ace } ]
Score = ScoreType.Multiple(11, 21) }
DealerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Ace } ]
Score = ScoreType.Multiple(11, 21) } }
let result = Blackjack.stand dummyState (Playing pushGame) |> Result.unwrap
match result with
| Blackjack.Push(game, effects) ->
game.PlayerHand.Score |> Blackjack.scoreValue |> should be (equal 21)
game.DealerHand.Score |> Blackjack.scoreValue |> should be (equal 21)
effects |> List.head |> should be (ofCase (<@ SituationChanged @>))
| _ -> failwith "Unexpected result"
[<Test>]
let ``standing when player has 21 and dealer does not results in blackjack for player``
()
=
let blackjackGame =
{ PlayerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Ace } ]
Score = ScoreType.Multiple(11, 21) }
DealerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Seven } ]
Score = ScoreType.Single 17 }
Bet = 50m<dd> }
let result =
Blackjack.stand dummyState (Playing blackjackGame) |> Result.unwrap
match result with
| Blackjack.PlayerBlackjack(game, amount, effects) ->
game.PlayerHand.Score |> Blackjack.scoreValue |> should be (equal 21)
game.DealerHand.Score |> Blackjack.scoreValue |> should be (equal 17)
amount |> should equal 75m<dd>
effects |> List.head |> should be (ofCase (<@ MoneyEarned @>))
effects |> List.item 1 |> should be (ofCase (<@ SituationChanged @>))
| _ -> failwith "Unexpected result"
[<Test>]
let ``standing when player has less than 21 and dealer busts results in win for player``
()
=
let dealerBustGame =
{ PlayerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Seven } ]
Score = ScoreType.Single 17 }
DealerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.King }
{ Suit = Suit.Hearts
Rank = Rank.Three } ]
Score = ScoreType.Single 23 }
Bet = 50m<dd> }
let result =
Blackjack.stand dummyState (Playing dealerBustGame) |> Result.unwrap
match result with
| Blackjack.DealerBusted(game, effects) ->
game.PlayerHand.Score |> Blackjack.scoreValue |> should be (equal 17)
game.DealerHand.Score |> Blackjack.scoreValue |> should be (equal 23)
effects |> List.head |> should be (ofCase (<@ MoneyEarned @>))
effects |> List.item 1 |> should be (ofCase (<@ SituationChanged @>))
| _ -> failwith "Unexpected result"
[<Test>]
let ``standing when player has more than dealer results in win for player`` () =
let winGame =
{ PlayerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Nine } ]
Score = ScoreType.Single 19 }
DealerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Seven } ]
Score = ScoreType.Single 17 }
Bet = 50m<dd> }
let result = Blackjack.stand dummyState (Playing winGame) |> Result.unwrap
match result with
| Blackjack.PlayerWin(game, effects) ->
game.PlayerHand.Score |> Blackjack.scoreValue |> should be (equal 19)
game.DealerHand.Score |> Blackjack.scoreValue |> should be (equal 17)
effects |> List.head |> should be (ofCase (<@ MoneyEarned @>))
effects |> List.item 1 |> should be (ofCase (<@ SituationChanged @>))
| _ -> failwith "Unexpected result"
[<Test>]
let ``standing when player has less than dealer results in loss for player``
()
=
let lossGame =
{ PlayerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Seven } ]
Score = ScoreType.Single 17 }
DealerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.King } ]
Score = ScoreType.Single 20 }
Bet = 50m<dd> }
let result = Blackjack.stand dummyState (Playing lossGame) |> Result.unwrap
match result with
| Blackjack.DealerWin(game, effects) ->
game.PlayerHand.Score |> Blackjack.scoreValue |> should be (equal 17)
game.DealerHand.Score |> Blackjack.scoreValue |> should be (equal 20)
effects |> List.head |> should be (ofCase (<@ MoneyTransferred @>))
effects |> List.item 1 |> should be (ofCase (<@ SituationChanged @>))
| _ -> failwith "Unexpected result"
[<Test>]
let ``standing when the dealer has less than 17 triggers a turn for the dealer``
()
=
use _ = changeToStaticRandom 2 (* Will deal a Three. *)
let nonFinishedGame =
{ PlayerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Seven } ]
Score = ScoreType.Single 17 }
DealerHand =
{ Cards =
[ { Suit = Suit.Clubs; Rank = Rank.King }
{ Suit = Suit.Diamonds
Rank = Rank.Six } ]
Score = ScoreType.Single 16 }
Bet = 50m<dd> }
let result =
Blackjack.stand dummyState (Playing nonFinishedGame) |> Result.unwrap
match result with
| Blackjack.DealerWin(game, _) ->
game.PlayerHand.Score |> Blackjack.scoreValue |> should be (equal 17)
game.DealerHand.Score |> Blackjack.scoreValue |> should be (equal 19)
| _ -> failwith "Unexpected result"
(* -------- After the game. -------- *)
[<Test>]
let ``leaving sets the situation back to free roam and increase time`` () =
let effects = Blackjack.leave Betting |> Result.unwrap
effects |> List.head |> should be (ofCase (<@ SituationChanged @>))
effects |> List.item 1 |> should be (ofCase (<@ MiniGamePlayed @>))