# FsUnit for MsTest

The FsUnit library for MsTest can be installed from NuGet:
`PM> Install-Package Fs30Unit.MsTest`
Sample FsUnit tests for MsTest can be installed from NuGet:
`PM> Install-Package Fs30Unit.MsTest.Sample`

## Euler - Problem 1

 ``` 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: ``` ``````module ``Project Euler - Problem 1`` = open Microsoft.VisualStudio.TestTools.UnitTesting open FsUnit.MsTest let GetSumOfMultiplesOf3And5 max = seq{3..max-1} |> Seq.fold(fun acc number -> (if (number % 3 = 0 || number % 5 = 0) then acc + number else acc)) 0 [] let ``When getting sum of multiples of 3 and 5 to a max number of 10 it should return a sum of 23`` () = GetSumOfMultiplesOf3And5(10) |> should equal 23 ``````

## LightBulb

 ``` 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16: 17: 18: 19: 20: 21: 22: 23: 24: 25: 26: 27: 28: 29: 30: 31: 32: 33: 34: ``` ``````module ``LightBulb Tests`` = open Microsoft.VisualStudio.TestTools.UnitTesting open FsUnit.MsTest type LightBulb(state) = member x.On = state override x.ToString() = match x.On with | true -> "On" | false -> "Off" [] type ``Given a LightBulb that has had its state set to true`` ()= let lightBulb = new LightBulb(true) [] member x. ``when I ask whether it is On it answers true.`` ()= lightBulb.On |> should be True [] member x. ``when I convert it to a string it becomes "On".`` ()= string lightBulb |> should equal "On" [] type ``Given a LightBulb that has had its state set to false`` ()= let lightBulb = new LightBulb(false) [] member x. ``when I ask whether it is On it answers false.`` ()= lightBulb.On |> should be False [] member x. ``when I convert it to a string it becomes "Off".`` ()= string lightBulb |> should equal "Off" ``````

## BowlingGame

Thanks to `Keith Nicholas` and `Julian` from hubFS for this example!

 ``` 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16: 17: 18: 19: 20: 21: 22: 23: 24: 25: 26: 27: 28: 29: 30: 31: 32: 33: 34: 35: 36: 37: 38: 39: 40: 41: 42: 43: 44: 45: 46: 47: 48: 49: 50: 51: 52: 53: 54: 55: ``` ``````module ``BowlingGame A game of bowling`` = open Microsoft.VisualStudio.TestTools.UnitTesting open FsUnit.MsTest let (|EndOfGame|IncompleteStrike|Strike|Normal|Other|) (l, frame) = match l with | _ when frame = 11 -> EndOfGame(0) | [10;s] -> IncompleteStrike(10+s+s) | 10::s::n::tail -> Strike(10+s+n, s::n::tail) | f::s::n::tail when f+s = 10 -> Normal(f+s+n, n::tail) | f::s::n::tail -> Normal(f+s, n::tail) | ls -> Other(List.fold (+) 0 ls) let scoreBowls bowls = let rec scoreBowls' frame l current_score = let nextframe = scoreBowls' (frame+1) match (l, frame) with | EndOfGame(score) -> current_score + score | IncompleteStrike(score) -> current_score + score | Strike(score, l) -> nextframe l (current_score + score) | Normal(score, l) -> nextframe l (current_score + score) | Other(score) -> current_score + score scoreBowls' 1 bowls 0 [] let ``with simple scores should get the expected score.`` () = scoreBowls [1;2;3] |> should equal 6 [] let ``with a spare should get the expected score (spare).`` () = scoreBowls [2;8;1] |> should equal 12 [] let ``with a strike should get the expected score (strike).`` () = scoreBowls [10;1;2] |> should equal 16 [] let ``that is perfect should get a score of 300.``() = scoreBowls [for i in 1..18 -> 10] |> should equal 300 [] let ``with spares in the last frame should get the expected score (spare in last frame).`` () = scoreBowls ([for i in 1..18 -> 0] @ [2;8;1]) |> should equal 11 [] let ``with a strike in the last frame should get the expected score (strike in last frame).`` () = scoreBowls ([for i in 1..18 -> 0] @ [10;10;1]) |> should equal 21 [] let ``with double strikes should add the score of the first strike to the score of the second.`` () = scoreBowls [10;10;1] |> should equal 33 [] let ``that looks like an average bowler's game should get the expected score (example game).`` () = scoreBowls [1;4;4;5;6;4;5;5;10;0;1;7;3;6;4;10;2;8;6] |> should equal 133 ``````  namespace Microsoft
val GetSumOfMultiplesOf3And5 : max:int -> int
val max : int
Multiple items
val seq : sequence:seq<'T> -> seq<'T>

--------------------
type seq<'T> = System.Collections.Generic.IEnumerable<'T>
module Seq

from Microsoft.FSharp.Collections
val fold : folder:('State -> 'T -> 'State) -> state:'State -> source:seq<'T> -> 'State
val acc : int
val number : int
val ( When getting sum of multiples of 3 and 5 to a max number of 10 it should return a sum of 23 ) : unit -> 'a
Multiple items
type LightBulb =
new : state:bool -> LightBulb
override ToString : unit -> string
member On : bool

--------------------
new : state:bool -> LightBulb
val state : bool
val x : LightBulb
property LightBulb.On: bool
val lightBulb : LightBulb
val x : Given a LightBulb that has had its state set to true
Multiple items
val string : value:'T -> string

--------------------
type string = System.String
val x : Given a LightBulb that has had its state set to false
val l : int list
val frame : int
val s : int
val n : int
val tail : int list
val f : int
val ls : int list
Multiple items
module List

from Microsoft.FSharp.Collections

--------------------
type List<'T> =
| ( [] )
| ( :: ) of Head: 'T * Tail: 'T list
interface IEnumerable
interface IEnumerable<'T>
member GetSlice : startIndex:int option * endIndex:int option -> 'T list
member IsEmpty : bool
member Item : index:int -> 'T with get
member Length : int
member Tail : 'T list
...
val fold : folder:('State -> 'T -> 'State) -> state:'State -> list:'T list -> 'State
val scoreBowls : bowls:int list -> int
val bowls : int list
val scoreBowls' : (int -> int list -> int -> int)
val current_score : int
val nextframe : (int list -> int -> int)
active recognizer EndOfGame: int list * int -> Choice<int,int,(int * int list),(int * int list),int>
val score : int
active recognizer IncompleteStrike: int list * int -> Choice<int,int,(int * int list),(int * int list),int>
active recognizer Strike: int list * int -> Choice<int,int,(int * int list),(int * int list),int>
active recognizer Normal: int list * int -> Choice<int,int,(int * int list),(int * int list),int>
active recognizer Other: int list * int -> Choice<int,int,(int * int list),(int * int list),int>
val ( with simple scores should get the expected score. ) : unit -> 'a
val ( with a spare should get the expected score (spare). ) : unit -> 'a
val ( with a strike should get the expected score (strike). ) : unit -> 'a
val ( that is perfect should get a score of 300. ) : unit -> 'a
val i : int
val ( with spares in the last frame should get the expected score (spare in last frame). ) : unit -> 'a
val ( with a strike in the last frame should get the expected score (strike in last frame). ) : unit -> 'a
val ( with double strikes should add the score of the first strike to the score of the second. ) : unit -> 'a
val ( that looks like an average bowler's game should get the expected score (example game). ) : unit -> 'a