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Diffstat (limited to 'test/Xanthous/Data/EntityMapSpec.hs')
| -rw-r--r-- | test/Xanthous/Data/EntityMapSpec.hs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/test/Xanthous/Data/EntityMapSpec.hs b/test/Xanthous/Data/EntityMapSpec.hs index 00bf1500466a..2e9714a44eb7 100644 --- a/test/Xanthous/Data/EntityMapSpec.hs +++ b/test/Xanthous/Data/EntityMapSpec.hs @@ -15,7 +15,10 @@ test = localOption (QuickCheckTests 20) $ testGroup "Xanthous.Data.EntityMap" [ testBatch $ monoid @(EntityMap Int) mempty , testGroup "Deduplicate" - [ testBatch $ monoid @(Deduplicate Int) mempty + [ testGroup "Semigroup laws" + [ testProperty "associative" $ \(a :: Deduplicate (EntityMap Int)) b c -> + a <> (b <> c) === (a <> b) <> c + ] ] , testGroup "Eq laws" [ testProperty "reflexivity" $ \(em :: EntityMap Int) -> |