elm/exercises/difference-of-squares/tests/Tests.elm
Jay Hayes 4d81104a85 Skip all but first test of each example
This allows learners to gradually approach exercise. However, unlike
commented tests, the Elm compiler is still able to infer type
information from the skipped tests.
2017-07-05 15:35:15 -05:00

46 lines
1.7 KiB
Elm

module Tests exposing (..)
import Test exposing (..)
import Expect
import DifferenceOfSquares exposing (squareOfSum, sumOfSquares, difference)
tests : Test
tests =
describe "DifferenceOfSquares"
[ describe "square the sum of the numbers up to the given number"
[ test "square of sum 5" <|
\() -> Expect.equal 225 (squareOfSum 5)
, skip <|
test "square of sum 10" <|
\() -> Expect.equal 3025 (squareOfSum 10)
, skip <|
test "square of sum 100" <|
\() -> Expect.equal 25502500 (squareOfSum 100)
]
, describe "sum the squares of the numbers up to the given number"
[ skip <|
test "sum of squares 5" <|
\() -> Expect.equal 55 (sumOfSquares 5)
, skip <|
test "sum of squares 10" <|
\() -> Expect.equal 385 (sumOfSquares 10)
, skip <|
test "sum of squares 100" <|
\() -> Expect.equal 338350 (sumOfSquares 100)
]
, describe "subtract sum of squares from square of sums"
[ skip <|
test "difference of squares 0" <|
\() -> Expect.equal 0 (difference 0)
, skip <|
test "difference of squares 5" <|
\() -> Expect.equal 170 (difference 5)
, skip <|
test "difference of squares 10" <|
\() -> Expect.equal 2640 (difference 10)
, skip <|
test "difference of squares 100" <|
\() -> Expect.equal 25164150 (difference 100)
]
]