a531ff94c3
* gnu/packages/patches/ghc-diff-swap-cover-args.patch: New file. * gnu/local.mk: Add it. * gnu/packages/haskell-xyz.scm (ghc-diff): Use it.
20 lines
958 B
Diff
20 lines
958 B
Diff
The QuickCheck library swapped the order of the arguments of the 'cover'
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function in version 2.12. Version 0.3.4 of the Diff library still uses
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the old argument order. Swapping the argument order makes Diff work
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with newer versions of QuickCheck.
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See <https://github.com/commercialhaskell/stackage/issues/4289> for the
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upstream bug report.
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diff -ruN a/test/Test.hs b/test/Test.hs
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--- a/test/Test.hs 2016-04-23 01:21:45.000000000 -0400
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+++ b/test/Test.hs 2019-11-01 19:13:04.590770903 -0400
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@@ -134,7 +134,7 @@
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prop_ppDiffR (DiffInput le ri) =
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let haskDiff=ppDiff $ getGroupedDiff le ri
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utilDiff= unsafePerformIO (runDiff (unlines le) (unlines ri))
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- in cover (haskDiff == utilDiff) 90 "exact match" $
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+ in cover 90 (haskDiff == utilDiff) "exact match" $
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classify (haskDiff == utilDiff) "exact match"
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(div ((length haskDiff)*100) (length utilDiff) < 110) -- less than 10% bigger
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where
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