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4d81104a85
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.
50 lines
1.7 KiB
Elm
50 lines
1.7 KiB
Elm
module Tests exposing (..)
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import Test exposing (..)
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import Expect
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import Series exposing (slices)
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tests : Test
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tests =
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describe "Series"
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[ test "slices of one" <|
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\() ->
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Expect.equal (Ok [ [ 0 ], [ 1 ], [ 2 ], [ 3 ], [ 4 ] ])
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(slices 1 "01234")
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, skip <|
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test "slices of two" <|
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\() ->
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Expect.equal (Ok [ [ 9, 7 ], [ 7, 8 ], [ 8, 6 ], [ 6, 7 ], [ 7, 5 ], [ 5, 6 ], [ 6, 4 ] ])
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(slices 2 "97867564")
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, skip <|
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test "slices of three" <|
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\() ->
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Expect.equal (Ok [ [ 9, 7, 8 ], [ 7, 8, 6 ], [ 8, 6, 7 ], [ 6, 7, 5 ], [ 7, 5, 6 ], [ 5, 6, 4 ] ])
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(slices 3 "97867564")
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, skip <|
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test "slices of four" <|
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\() ->
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Expect.equal (Ok [ [ 0, 1, 2, 3 ], [ 1, 2, 3, 4 ] ])
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(slices 4 "01234")
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, skip <|
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test "slices of five" <|
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\() ->
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Expect.equal (Ok [ [ 0, 1, 2, 3, 4 ] ])
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(slices 5 "01234")
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, skip <|
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test "overly long slice" <|
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\() ->
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Expect.equal (Ok [])
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(slices 4 "012")
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, skip <|
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test "overly short slice" <|
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\() ->
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Expect.equal (Err ("Invalid size: 0"))
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(slices 0 "01234")
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, skip <|
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test "input has non numbers" <|
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\() ->
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Expect.equal (Err "could not convert string 'a' to an Int")
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(slices 2 "0123abc")
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]
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