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47 lines
1.6 KiB
Elm
47 lines
1.6 KiB
Elm
port module Main exposing (..)
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import Test.Runner.Node exposing (run, TestProgram)
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import Json.Encode exposing (Value)
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import Test exposing (..)
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import Expect
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import DifferenceOfSquares exposing (squareOfSum, sumOfSquares, difference)
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tests : Test
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tests =
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describe "DifferenceOfSquares"
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[ describe "square the sum of the numbers up to the given number"
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[ test "square of sum 5" <|
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\() -> Expect.equal 225 (squareOfSum 5)
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, test "square of sum 10" <|
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\() -> Expect.equal 3025 (squareOfSum 10)
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, test "square of sum 100" <|
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\() -> Expect.equal 25502500 (squareOfSum 100)
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]
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, describe "sum the squares of the numbers up to the given number"
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[ test "sum of squares 5" <|
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\() -> Expect.equal 55 (sumOfSquares 5)
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, test "sum of squares 10" <|
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\() -> Expect.equal 385 (sumOfSquares 10)
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, test "sum of squares 100" <|
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\() -> Expect.equal 338350 (sumOfSquares 100)
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]
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, describe "subtract sum of squares from square of sums"
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[ test "difference of squares 0" <|
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\() -> Expect.equal 0 (difference 0)
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, test "difference of squares 5" <|
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\() -> Expect.equal 170 (difference 5)
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, test "difference of squares 10" <|
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\() -> Expect.equal 2640 (difference 10)
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, test "difference of squares 100" <|
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\() -> Expect.equal 25164150 (difference 100)
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]
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]
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main : TestProgram
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main =
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run emit tests
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port emit : ( String, Value ) -> Cmd msg
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