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Tests.elm
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Tests.elm
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module Main exposing (..)
import Test exposing (describe, test)
import Expect
import LightsGame
import Matrix
import Test.Runner.Html
singleLightBoard =
Matrix.fromList [ [ Just True ] ]
|> Maybe.withDefault Matrix.empty
singleRowBoard =
Matrix.fromList [ [ Just False, Just False, Just False ] ]
|> Maybe.withDefault Matrix.empty
squareBoard =
Matrix.fromList
[ [ Just False, Just False, Just False ]
, [ Just False, Just False, Just False ]
, [ Just False, Just False, Just False ]
]
|> Maybe.withDefault Matrix.empty
all =
describe "LightsGame"
[ test "can toggle a light" <|
\() ->
LightsGame.init singleLightBoard
|> LightsGame.update (LightsGame.Toggle { x = 0, y = 0 })
|> .isOn
|> Matrix.get 0 0
|> Expect.equal (Just <| Just False)
, test "toggling a light toggles its right neighbor" <|
\() ->
LightsGame.init singleRowBoard
|> LightsGame.update (LightsGame.Toggle { x = 0, y = 0 })
|> .isOn
|> Matrix.get 1 0
|> Expect.equal (Just <| Just True)
, test "toggling a light toggles its left neighbor" <|
\() ->
LightsGame.init singleRowBoard
|> LightsGame.update (LightsGame.Toggle { x = 2, y = 0 })
|> .isOn
|> Matrix.get 1 0
|> Expect.equal (Just <| Just True)
, test "toggling a light doesn't toggle non-neighbors" <|
\() ->
LightsGame.init squareBoard
|> LightsGame.update (LightsGame.Toggle { x = 1, y = 1 })
|> .isOn
|> Matrix.get 0 0
|> Expect.equal (Just <| Just False)
, test "toggling a light toggles its upper neighbor" <|
\() ->
LightsGame.init squareBoard
|> LightsGame.update (LightsGame.Toggle { x = 1, y = 2 })
|> .isOn
|> Matrix.get 1 1
|> Expect.equal (Just <| Just True)
, test "toggling a light toggles its lower neighbor" <|
\() ->
LightsGame.init squareBoard
|> LightsGame.update (LightsGame.Toggle { x = 1, y = 0 })
|> .isOn
|> Matrix.get 1 1
|> Expect.equal (Just <| Just True)
, describe "isSolved"
[ test "True when all lights are off" <|
\() ->
LightsGame.init squareBoard
|> LightsGame.isSolved
|> Expect.equal True
, test "False when some lights are on" <|
\() ->
LightsGame.init squareBoard
|> LightsGame.update (LightsGame.Toggle { x = 0, y = 0 })
|> LightsGame.isSolved
|> Expect.equal False
]
]
main =
Test.Runner.Html.run all