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https://github.com/simplex-chat/simplexmq.git
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dd2bd11584
* parameterize version scopes with phantom types * move Version to another module * parens
66 lines
2.6 KiB
Haskell
66 lines
2.6 KiB
Haskell
{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE TypeFamilies #-}
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module CoreTests.VersionRangeTests where
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import GHC.Generics (Generic)
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import Generic.Random (genericArbitraryU)
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import Simplex.Messaging.Version
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import Simplex.Messaging.Version.Internal
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import Test.Hspec
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import Test.Hspec.QuickCheck (modifyMaxSuccess)
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import Test.QuickCheck
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data V = V1 | V2 | V3 | V4 | V5 deriving (Eq, Enum, Ord, Generic, Show)
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instance Arbitrary V where arbitrary = genericArbitraryU
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data T
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instance VersionScope T
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versionRangeTests :: Spec
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versionRangeTests = modifyMaxSuccess (const 1000) $ do
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describe "VersionRange construction" $ do
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it "should fail on invalid range" $ do
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vr 1 1 `shouldBe` vr 1 1
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vr 1 2 `shouldBe` vr 1 2
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(pure $! vr 2 1) `shouldThrow` anyErrorCall
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describe "compatible version" $ do
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it "should choose mutually compatible max version" $ do
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(vr 1 1, vr 1 1) `compatible` Just (Version 1)
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(vr 1 1, vr 1 2) `compatible` Just (Version 1)
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(vr 1 2, vr 1 2) `compatible` Just (Version 2)
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(vr 1 2, vr 2 3) `compatible` Just (Version 2)
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(vr 1 3, vr 2 3) `compatible` Just (Version 3)
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(vr 1 3, vr 2 4) `compatible` Just (Version 3)
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(vr 1 2, vr 3 4) `compatible` Nothing
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it "should check if version is compatible" $ do
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isCompatible @T (Version 1) (vr 1 2) `shouldBe` True
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isCompatible @T (Version 2) (vr 1 2) `shouldBe` True
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isCompatible @T (Version 2) (vr 1 1) `shouldBe` False
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isCompatible @T (Version 1) (vr 2 2) `shouldBe` False
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it "compatibleVersion should pass isCompatible check" . property $
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\((min1, max1) :: (V, V)) ((min2, max2) :: (V, V)) ->
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min1 > max1
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|| min2 > max2 -- one of ranges is invalid, skip testing it
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|| let w = Version . fromIntegral . fromEnum
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vr1 = mkVersionRange (w min1) (w max1) :: VersionRange T
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vr2 = mkVersionRange (w min2) (w max2) :: VersionRange T
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in case compatibleVersion vr1 vr2 of
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Just (Compatible v) -> v `isCompatible` vr1 && v `isCompatible` vr2
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_ -> True
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where
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vr v1 v2 = mkVersionRange (Version v1) (Version v2)
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compatible :: (VersionRange T, VersionRange T) -> Maybe (Version T) -> Expectation
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(vr1, vr2) `compatible` v = do
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(vr1, vr2) `checkCompatible` v
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(vr2, vr1) `checkCompatible` v
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(vr1, vr2) `checkCompatible` v =
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case compatibleVersion vr1 vr2 of
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Just (Compatible v') -> Just v' `shouldBe` v
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Nothing -> Nothing `shouldBe` v
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