use Editor istead of String

test/SpecHelpers.hs

@@ -0,0 +1,29 @@
+{-
+
+mtlstats
+Copyright (C) Rhéal Lamothe
+<rheal.lamothe@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or (at
+your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-}
+
+module SpecHelpers where
+
+import Brick.Widgets.Edit (Editor, editContentsL, editor)
+import Data.Text.Zipper (gotoEOL)
+import Lens.Micro ((&), (%~))
+
+mkEditor :: String -> Editor String ()
+mkEditor str = editor () (Just 1) str & editContentsL %~ gotoEOL