-- Copyright 2021 Google LLC
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DerivingVia #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TypeApplications #-}
module Main where
import Test.Framework (defaultMain, testGroup)
import Test.Framework.Providers.HUnit (testCase)
import Test.HUnit ((@?=))
import Data.Portray
import Data.Portray.Pretty
main :: IO ()
main = defaultMain
[ testGroup "Atom"
[ testCase "()" $ prettyShowPortrayal (Tuple []) @?= "()"
, testCase "2" $ prettyShowPortrayal (LitInt 2) @?= "2"
]
, testGroup "Apply"
[ testCase "nullary" $
prettyShowPortrayal (Apply (Name "Nothing") []) @?= "Nothing"
, testCase "nullary 2" $
prettyShowPortrayal
(Apply (Name "id") [Apply (Name "Nothing") []]) @?=
"id Nothing"
, testCase "unary" $
prettyShowPortrayal (Apply (Name "Just") [LitInt 2]) @?= "Just 2"
, testCase "parens" $
prettyShowPortrayal
(Apply (Name "Just") [Apply (Name "Just") [LitInt 2]]) @?=
"Just (Just 2)"
, testCase "binary" $
prettyShowPortrayal (Apply (Name "These") [LitInt 2, LitInt 4]) @?=
"These 2 4"
, testCase "nested" $
prettyShowPortrayal
(Apply (Apply (Name "These") [LitInt 2]) [LitInt 4]) @?=
"These 2 4"
]
, testGroup "Binop"
[ testCase "operator" $
prettyShowPortrayal
(Binop ":|" (infixr_ 5) (LitInt 5) (List [])) @?=
"5 :| []"
, testCase "con" $
prettyShowPortrayal
(Binop
(Ident ConIdent "InfixCon")
(infixl_ 9)
(LitInt 2)
(Name "True")) @?=
"2 `InfixCon` True"
, testCase "nest prec" $
prettyShowPortrayal
(Binop
"+"
(infixl_ 6)
(Binop "*" (infixl_ 7) (LitInt 2) (LitInt 4))
(LitInt 6)) @?=
"2 * 4 + 6"
, testCase "nest anti-prec" $
prettyShowPortrayal
(Binop
"*"
(infixl_ 7)
(Binop "+" (infixl_ 6) (LitInt 2) (LitInt 4))
(LitInt 6)) @?=
"(2 + 4) * 6"
, testCase "nest assoc" $
prettyShowPortrayal
(Binop
"+"
(infixl_ 6)
(Binop "+" (infixl_ 6) (LitInt 2) (LitInt 4))
(LitInt 6)) @?=
"2 + 4 + 6"
, testCase "nest anti-assoc" $
prettyShowPortrayal
(Binop
"+"
(infixl_ 6)
(LitInt 2)
(Binop "+" (infixl_ 6) (LitInt 4) (LitInt 6))) @?=
"2 + (4 + 6)"
]
, testGroup "Tuple"
[ testCase "pair" $
prettyShowPortrayal (Tuple [LitInt 2, LitInt 4]) @?= "( 2, 4 )"
, testCase "triple" $
prettyShowPortrayal (Tuple [LitInt 2, LitInt 4, LitInt 6]) @?=
"( 2, 4, 6 )"
, testCase "line-break" $
prettyShowPortrayal
(Tuple [strAtom "222", strAtom (replicate 61 '2')]) @?=
"( 222\n\
\, 2222222222222222222222222222222222222222222222222222222222222\n\
\)"
]
, testGroup "List"
[ testCase "empty" $ prettyShowPortrayal (List []) @?= "[]"
, testCase "singleton" $ prettyShowPortrayal (List [LitInt 2]) @?=
"[ 2 ]"
]
, testGroup "LambdaCase"
[ testCase "empty" $ prettyShowPortrayal (LambdaCase []) @?= "\\case {}"
, testCase "singleton" $
prettyShowPortrayal (LambdaCase [(Tuple [], LitInt 2)]) @?=
"\\case { () -> 2 }"
, testCase "two" $
prettyShowPortrayal
(LambdaCase
[(Name "True", LitInt 2), (Name "False", LitInt 4)]) @?=
"\\case { True -> 2; False -> 4 }"
, testCase "line-break" $
prettyShowPortrayal
(LambdaCase
[ (Name "True", strAtom (replicate 25 '2'))
, (Name "False", strAtom (replicate 25 '4'))
]) @?=
"\\case\n\
\ { True -> 2222222222222222222222222\n\
\ ; False -> 4444444444444444444444444\n\
\ }"
, testCase "no-parens" $
prettyShowPortrayal
(LambdaCase
[( Apply (Name "Just") [LitInt 2]
, Apply (Name "Just") [LitInt 4]
)]) @?=
"\\case { Just 2 -> Just 4 }"
]
, testGroup "Record"
[ testCase "empty" $ prettyShowPortrayal (Record (Name "Nothing") []) @?=
"Nothing"
, testCase "singleton" $
prettyShowPortrayal
(Record (Name "Just") [FactorPortrayal "it" (LitInt 2)]) @?=
"Just { it = 2 }"
, testCase "two" $
prettyShowPortrayal
(Record (Name "These")
[ FactorPortrayal "l" (LitInt 2)
, FactorPortrayal "r" (LitInt 4)
]) @?=
"These { l = 2, r = 4 }"
, testCase "line-break" $
prettyShowPortrayal
(Record (Name "These")
[ FactorPortrayal "l" (portray @[Int] [0..10])
, FactorPortrayal "r" (portray @[Int] [0..10])
]) @?=
"These\n\
\ { l = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ]\n\
\ , r = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ]\n\
\ }"
, testCase "break-equals" $
prettyShowPortrayal
(Record (Name "These")
[ FactorPortrayal
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
(Name "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
]) @?=
"These\n\
\ { aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n\
\ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n\
\ }"
]
, testGroup "TyApp"
[ testCase "con" $
prettyShowPortrayal (TyApp (Name "typeRep") (Name "Int")) @?=
"typeRep @Int"
, testCase "parens" $
prettyShowPortrayal
(TyApp (Name "typeRep") (Apply (Name "Maybe") [Name "Int"])) @?=
"typeRep @(Maybe Int)"
, testCase "line-break" $
prettyShowPortrayal
(TyApp
(strAtom $ replicate 50 'a')
(strAtom $ replicate 50 'a')) @?=
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n\
\ @aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
]
, testGroup "TySig"
[ testCase "con" $ prettyShowPortrayal (TySig (LitInt 2) (Name "Int")) @?=
"2 :: Int"
, testCase "no-parens" $
prettyShowPortrayal
(TySig
(Apply (Name "Just") [LitInt 2])
(Apply (Name "Maybe") [Name "Int"])) @?=
"Just 2 :: Maybe Int"
, testCase "line-break" $
prettyShowPortrayal
(TySig
(strAtom $ replicate 50 'a')
(strAtom $ replicate 50 'a')) @?=
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n\
\ :: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
, testCase "parens" $
prettyShowPortrayal
(Apply (Name "Just") [TySig (LitInt 2) (Name "Int")]) @?=
"Just (2 :: Int)"
]
]