---------------------------------------------------------------------
RUN tests/flag-only-one-arg.hs --only="Redundant bracket"
FILE tests/flag-only-one-arg.hs
foo xs = if length xs == 0 then 42 else (666) -- should result in 2 suggestions
OUTPUT
tests/flag-only-one-arg.hs:1:41-45: Warning: Redundant bracket
Found:
  (666)
Perhaps:
  666

1 hint
---------------------------------------------------------------------
RUN tests/flag-only-many-args.hs --only="Redundant bracket" --only="Use ++"
FILE tests/flag-only-many-args.hs
foo xs = if length xs == 0 then concat ["foo", "bar"] else (666) -- should result in 3 suggestions
OUTPUT
tests/flag-only-many-args.hs:1:33-53: Suggestion: Use ++
Found:
  concat ["foo", "bar"]
Perhaps:
  "foo" ++ "bar"

tests/flag-only-many-args.hs:1:60-64: Warning: Redundant bracket
Found:
  (666)
Perhaps:
  666

2 hints