vty-4.7.0.18: test/VerifyUtf8Width.hs

module VerifyUtf8Width where
import Verify

import Graphics.Vty.Attributes
import Graphics.Vty.Picture

sw_is_1_column :: SingleColumnChar -> Bool
sw_is_1_column (SingleColumnChar c) = image_width (char def_attr c) == 1

dw_is_2_column :: DoubleColumnChar -> Bool
dw_is_2_column (DoubleColumnChar c) = image_width (char def_attr c) == 2

tests :: IO [Test]
tests = return
  [ verify "sw_is_1_column" sw_is_1_column
  , verify "dw_is_2_column" dw_is_2_column
  ]