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77 lines
2.8 KiB
Elm
77 lines
2.8 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 ListOps exposing (..)
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tests : Test
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tests =
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describe "List Ops"
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[ describe "length"
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[ test "empty list" <|
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\() -> Expect.equal 0 (ListOps.length [])
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, test "non-empty list" <|
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\() -> Expect.equal 4 (ListOps.length [1..4])
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]
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, describe "reverse"
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[ test "empty list" <|
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\() -> Expect.equal [] (ListOps.reverse [])
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, test "non-empty list" <|
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\() -> Expect.equal [ 4, 3, 2, 1 ] (ListOps.reverse [1..4])
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]
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, describe "map"
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[ test "empty list" <|
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\() -> Expect.equal [] (ListOps.map ((+) 1) [])
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, test "non-empty list" <|
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\() -> Expect.equal [2..5] (ListOps.map ((+) 1) [1..4])
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]
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, describe "filter"
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[ test "empty list" <|
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\() -> Expect.equal [] (ListOps.filter (\_ -> True) [])
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, test "non-empty list" <|
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\() -> Expect.equal [ 2, 4 ] (ListOps.filter (\x -> x % 2 == 0) [1..4])
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]
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, describe "foldl"
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[ test "empty list" <|
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\() -> Expect.equal 0 (ListOps.foldl (+) 0 [])
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, test "non-empty list" <|
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\() -> Expect.equal 10 (ListOps.foldl (+) 0 [1..4])
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, test "direction" <|
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\() -> Expect.equal [ 4, 3, 2, 1 ] (ListOps.foldl (::) [] [1..4])
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]
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, describe "foldr"
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[ test "empty list" <|
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\() -> Expect.equal 0 (ListOps.foldr (+) 0 [])
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, test "non-empty list" <|
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\() -> Expect.equal 10 (ListOps.foldr (+) 0 [1..4])
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, test "direction" <|
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\() -> Expect.equal [1..4] (ListOps.foldr (::) [] [1..4])
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]
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, describe "append"
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[ test "empty lists" <|
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\() -> Expect.equal [] (ListOps.append [] [])
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, test "empty and non-empty lists" <|
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\() -> Expect.equal [1..4] (ListOps.append [] [1..4])
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, test "non-empty and empty lists" <|
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\() -> Expect.equal [1..4] (ListOps.append [1..4] [])
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, test "non-empty lists" <|
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\() -> Expect.equal [1..8] (ListOps.append [1..4] [5..8])
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]
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, describe "concat"
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[ test "empty list" <|
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\() -> Expect.equal [] (ListOps.concat [])
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, test "list of lists" <|
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\() -> Expect.equal [1..10] (ListOps.concat [ [1..3], [], [4..7], [8..10] ])
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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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