fourmolu-0.13.0.0: data/examples/declaration/value/function/infix/hspec-expectation.hs
import Test.Hspec
my_tests = do
context "my context" $
it "does something" $
property $ \pos xs0 xs1 ->
FancyError pos xs0 <> FancyError pos xs1
`shouldBe` (FancyError pos (E.union xs0 xs1) :: PE)