-import qualified Data.ByteString as BS
-import qualified Data.ByteString.UTF8 as BSU
-import Text.Email.Validate (isValid)
-import Test.HUnit (assertEqual)
-import Test.Framework (Test, testGroup)
-import Test.Framework.Providers.HUnit (testCase)
+import qualified Data.ByteString.Char8 as BS (
+ ByteString,
+ break,
+ empty,
+ length,
+ pack,
+ tail )
+import Text.Email.Validate ( isValid )
+import Test.HUnit ( assertEqual )
+import Test.Tasty ( TestTree, testGroup )
+import Test.Tasty.HUnit ( (@?=), testCase )