add base32 hashing tests - currently failing

hnix-store-core/tests/Hash.hs

@@ -0,0 +1,20 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+module Hash where
+
+import qualified Data.ByteString.Char8 as BSC
+import           Data.Foldable
+import           Data.Semigroup
+import           Test.Tasty.Hspec
+import           Test.Tasty.HUnit
+import           System.Nix.Hash
+
+spec_hashBase32truncateParity :: Spec
+spec_hashBase32truncateParity = describe "hashBase32" $
+  for_ testCases $ \(testCase, expectation) ->
+    it ("computes correct base32 hash for string " <> BSC.unpack testCase) $
+    hashToBase32 (hash testCase) `shouldBe` expectation
+  where
+    testCases :: [(BSC.ByteString, BSC.ByteString)]
+    testCases =
+      [ ("hello", "hcv22wi9b082i6qy160jgi9cvw3am153") ]