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Add test for listParser error message #1189

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Merged
Lysxia merged 1 commit into from
Aug 25, 2026
+7 −1
Merged

Add test for listParser error message #1189

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6 changes: 5 additions & 1 deletion tests/ErrorMessages.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ module ErrorMessages
import Prelude.Compat

import Data.Aeson (FromJSON(..), Value, eitherDecode)
import Data.Aeson.Types (Parser, parseEither)
import Data.Aeson.Types (Parser, listParser, parseEither)
import Data.Algorithm.Diff (PolyDiff (..), getGroupedDiff)
import Data.Proxy (Proxy(..))

Expand Down Expand Up @@ -76,6 +76,10 @@ output = concat
, testFor "Seq" (Proxy :: Proxy (Seq Int))
[ "[0,1,true]"
]

, testWith "listParser" (listParser parseJSON :: Value -> Parser [Int])
[ "[true]"
]
]

data Choice = TH | G
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2 changes: 2 additions & 0 deletions tests/golden/simple.expected
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Expand Up @@ -20,3 +20,5 @@ Either
Error in $[1].Left[1]: expected Bool, but encountered Number
Seq
Error in $[2]: parsing Int failed, expected Number, but encountered Boolean
listParser
Error in $[0]: parsing Int failed, expected Number, but encountered Boolean