elm/exercises/sublist/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

67 lines
2.9 KiB
Elm

module Tests exposing (..)
import Test exposing (..)
import Expect
import Sublist exposing (version, sublist, ListComparison(..))
tests : Test
tests =
describe "Sublist"
[ test "the solution is for the correct version of the test" <|
\() -> Expect.equal 2 version
, skip <|
test "empty equals empty" <|
\() -> Expect.equal Equal (sublist [] [])
, skip <|
test "empty is a sublist of anything" <|
\() -> Expect.equal Sublist (sublist [] [ 1, 2 ])
, skip <|
test "anything is a superlist of empty" <|
\() -> Expect.equal Superlist (sublist [ 1, 2 ] [])
, skip <|
test "1 is not 2" <|
\() -> Expect.equal Unequal (sublist [ 1 ] [ 2 ])
, skip <|
test "compare larger equal lists" <|
\() -> Expect.equal Equal (sublist [ 1, 1, 1 ] [ 1, 1, 1 ])
, skip <|
test "sublist at start" <|
\() -> Expect.equal Sublist (sublist [ 1, 2, 3 ] [ 1, 2, 3, 4, 5 ])
, skip <|
test "sublist in the middle" <|
\() -> Expect.equal Sublist (sublist [ 4, 3, 2 ] [ 5, 4, 3, 2, 1 ])
, skip <|
test "sublist at end" <|
\() -> Expect.equal Sublist (sublist [ 3, 4, 5 ] [ 1, 2, 3, 4, 5 ])
, skip <|
test "partially matching sublist at start" <|
\() -> Expect.equal Sublist (sublist [ 1, 1, 2 ] [ 1, 1, 1, 2 ])
, skip <|
test "sublist early in huge list" <|
\() -> Expect.equal Sublist (sublist [ 3, 4, 5 ] (List.range 1 100000))
, skip <|
test "huge sublist not in list" <|
\() -> Expect.equal Unequal (sublist (List.range 10 5001) (List.range 1 5000))
, skip <|
test "superlist at start" <|
\() -> Expect.equal Superlist (sublist [ 1, 2, 3, 4, 5 ] [ 1, 2, 3 ])
, skip <|
test "superlist in middle" <|
\() -> Expect.equal Superlist (sublist [ 5, 4, 3, 2, 1 ] [ 4, 3, 2 ])
, skip <|
test "superlist at end" <|
\() -> Expect.equal Superlist (sublist [ 1, 2, 3, 4, 5 ] [ 3, 4, 5 ])
, skip <|
test "partially matching superlist at start" <|
\() -> Expect.equal Superlist (sublist [ 1, 1, 1, 2 ] [ 1, 1, 2 ])
, skip <|
test "superlist early in huge list" <|
\() -> Expect.equal Superlist (sublist (List.range 1 100000) [ 3, 4, 5 ])
, skip <|
test "recurring values sublist" <|
\() -> Expect.equal Sublist (sublist [ 1, 2, 1, 2, 3 ] [ 1, 2, 3, 1, 2, 1, 2, 3, 2, 1 ])
, skip <|
test "recurring values unequal" <|
\() -> Expect.equal Unequal (sublist [ 1, 2, 1, 2, 3 ] [ 1, 2, 3, 1, 2, 3, 2, 3, 2, 1 ])
]